Airway Obstruction ; complications ; surgery ; Continuous Positive Airway Pressure ; Humans ; Infant ; Male ; Sleep Apnea Syndromes ; etiology ; therapy ; Sleep Apnea, Obstructive ; etiology ; therapy ; Treatment Outcome

Objective To investigate the value of dynamic contrast-enhanced MRI parameters in the diagnosis of cervical squamous cell carcinoma. Methods A retrospective analysis of dynamic contrast enhanced MRI in 55 patients with pathologically diagnosed cervical squamous cell carcinoma without prior treatment. They were divided into three groups based on grade of differentiation: well differentiated ( 6 patients),moderately differentiated(28 patients)and poorly differentiated group(21 patients). Capacity volume transfer constant (Ktrans),exchange rate constant(Kep) and extravascular extracellular volume fraction (Ve) were measured in each group of patients, and comparing the correlation with ANOVA, DCE-MRI parameters and grading of squamous differentiation using Spearman rank correlation analysis. Results Ktrans of the poorly, moderately and well differentiated cervical squamous cell carcinoma were (2.42±0.58),(1.71± 0.78),(1.27±0.78)/min respectively, Kep were (4.17±1.23),(3.08±1.58),(2.55±0.87)/min respectively, Ve were 0.60 ± 0.12,0.60 ± 0.19,0.43 ± 0.17 respectively. Statistical difference of Ktransand Kep were found among the subgroups of different pathological grading.(F values were 7.518 and 4.234,P all<0.05), Ve difference was not statistically significant (F=2.382, P>0.05). Statistical difference of Ktransand Kep were seen in multiple comparisons, between the groups of poorly and moderately differentiated groups poorly and well differentiated groups (P all<0.05),difference was not statistically significant of Ktransand Kep were seen in the groups of moderately and well differentiated groups(P> 0.05). There were moderate negative correlation between Ktrans,Kep and the pathological degree (r=-0.531 and -0.446, P=0.001 and 0.002), Ve had no correlation between pathological grade (r= -0.220, P = 0.141).Conclusion DCE-MRI parameters Ktrans and Kep reveal perfusion characteristics in different pathological grades of cervical squamous cell carcinoma.

Metabonomics is a new method to study on the metabolic network and the relationship between body and environment, which conforms to the way of traditional Chinese medicine (TCM) research. In the study process of modernization of traditional Chinese medicine, effectively conjunction with metabonomics method will facilitate the integration of TCM with modern biological science and technology, and promote the modernization of TCM. This paper introduce the application of metabonomics in the research of toxicity mechanism of TCM, compatibility mechanism of TCM formula, pharmacology effect of TCM and processing mechanism of TCM. This paper summarize the problems in the TCM metabonomics research and prospect its bright future.
Animals ; Drug Therapy ; Drugs, Chinese Herbal ; adverse effects ; analysis ; metabolism ; therapeutic use ; Humans ; Medicine, Chinese Traditional ; methods ; trends ; Metabolomics ; methods ; trends

Coronary Sinus ; abnormalities ; Humans ; Male ; Middle Aged ; Subclavian Vein ; Vena Cava, Superior

Abstract: Mycobacterium senegalense is one of the major pathogens causing bovine farcy, and reports of its infection in human are rare. Here is a report on a woman who had been taking hormones and immunosuppressants for a long time for SLE and underwent abdominal soft tissue infection with Mycobacterium senegalense after abdominal liposuction, to provide reference for clinical diagnosis and treatment. The patient, female, 32 years old, has a history of SLE for more than 2 years, and currently takes "methylprednisolone, hydroxychloroquine, and mycophenolate mofetil" regularly. Nine months before the patient was admitted to the hospital, she once performed abdominal, waist and buttock liposuction in a medical beauty institution. One month after the operation, several masses gradually appeared on the abdominal wall, accompanied by tenderness, one of the masses had obvious fluctuation on palpation and purulent fluid could be drawn out. The location of the abdominal wall mass was consistent with the insertion site of the liposuction needle. After the onset of the disease, the patient went to the medical beauty institution for puncture of the abdominal wall mass, and 5 mL of purulent fluid was pierced and sent for bacterial culture, and cultured "Mycobacterium Senegalense", after 3 days of treatment with "cephalosporin" antibiotics (specifically unknown), the symptoms did not improve, so she went to the second affiliated hospital of hainan medical college. After completing the relevant examinations during the hospitalization in our hospital, in order to clarify the etiology, another abdominal puncture to extract pus was performed, the mycobacterial culture + identification results: Mycobacterium senegalense. Consistent with the out-of-hospital results, the diagnosis of Mycobacterium senegalense infection was confirmed. After 3 months of treatment with "cefoxitin, azithromycin, amikacin, and levofloxacin", the patient's abdominal wall soft tissue infection was cured. Trauma or invasive procedures can lead to skin, muscle, or bone infection with nontuberculous mycobacteria (NTM), which can manifest as chronic painless nodules that progress to purulent folliculitis and abscesses. NTM infection should be suspected when the patient's wound has been exposed to water, there is a history of surgery, and empirical anti-infection is ineffective. This is the first case of Mycobacterium senegalense infection caused by medical beauty, which tell people that they should be cautious when choosing medical aesthetic projects and medical aesthetic institutions.

[Objective]To investigate the cytotoxic effect ofaquaporin-4 (AQP4) antibody onin vitro cultured rat cortical neurons.[Methods]Cortical cells were obtained from Wistar embryonic rats with 16-19-d pregnancy;3 daRer seeding,the cultured cortical cells were randomly divided into a control group and an AQP4 antibody-positive serum treatment group.Neurons of the control group were added the normal human serum and those in the treatment group were added serum from AQP4 antibody positive patients.The number and morphology changes of astrocytes,neurons and microglias were observed by immunohistochemistry at 2,4 and 6 h after being incubated with AQP4 antibody positive serum or controls.[Results] No number or morphology changes of cortical cells were observed in control group at different time points.AQP4 antibody-positive serums induced astrocyte swelling,microglia hyperplasia and neuron axonotmesis,but did not influence the numbers of cortical cells at 2 h after induction.The numbers of astrocytes and neurons in the treatment group (24.73％±5.27％ and 35.49％±8.43％,respectively) significantly decreased as compared with those in the control group (30.34％％:t,4.53％ and 48.60％+10.99％) at 4 h after induction (P＜0.05),while those of microglias in the treatment group (27.35％±13.17％) obviously increased as compared with those in the control group (16.44％±2.70％,P＜ 0.05);these changes became more significant at 6 h after induction.[Conclusion] AQP4 antibodies induce loss of astrocytes and neurons,and microglia activation in primary cortical cells,which maybe imply the primary pathogenic role of AQP4 antibody in neuromyelitis optica.

OBJECTIVETo survey and compare the thickness-change of different thickness thermoplastic materials under different test condition and make sure the relationship between the thickness-change and the material initial thickness in order to provide a guide in selecting the suitable thickness thermoplastic in practice.

METHODSTo choose Biolon, the thickness include 1.0 mm, 0.75 mm, 0.5 mm. Used Electron Vernier caliper to measure the thickness-change of different thickness thermoplastic materials under different processing mode. The data was analyzed by SPSS 10.0.

RESULTSAfter thermoforming the thickness of thermoplastic became thinner, the thickness of Biolon 0.75 mm decreased by 0.14 mm, Biolon 1.0 mm decreased by 0.22 mm and Biolon 0.5 mm decreased by 0.14 mm. After saliva immersion the thickness became thicker. The thickness of Biolon 0.75 mm increased by 0.02 mm, Biolon 1.0 mm increased by 0.03 mm and Biolon 0.5 mm increased by 0.02 mm.

CONCLUSION1)The influence of different processing mode to the thickness-change had relation to the material initial thickness. 2)The Biolon 0.75 mm had certain superiority in thickness stability compared to the homogeneous brand through the above research.

Dental Materials ; Humans ; Materials Testing ; Saliva

OBJECTIVECigarette smoke extract (CSE) can induce injuries of pulmonary II epithelial cells, activate nuclear factor-kappaB and increase tumor necrosis factor-alpha(TNF-alpha) secretion. This study aimed to investigate whether azithromycin can protect pulmonary II epithelial cells from injuries induced by CSE and relevant mechanisms.

METHODSPulmonary II epithelial cells (A549 cells) were cultured in vitro. After 48 hrs of culture the cells were randomly treated with serum-free DMEM only (blank control group), azithromycin + serum-free DMEM, CSE+ serum-free DMEM or CSE+azithromycin. Eight hours later the morphology of A549 cells, the activity of NF-kappaB and the levels of TNF-alpha were measured by inverted microscope, immunohistochemistry and ELISA.

RESULTSThe morphology and structure of A549 cells were changed, NF-kappaB activity increased (dark brown staining ) and TNF-alpha levels (0.307 +/- 0.036 pg/mL vs 0.234 +/- 0.028 pg/mL)increased in the CSE+ serum-free DMEM group compared with the blank control group (P < 0.01). CSE together with azithromycin treatment recovered partly the morphological injuries of A549 cells. It also attenuated NF-kappaB staining and decreased TNF-alpha levels from 0.307 +/- 0.036 pg/mL (CSE+serum-free DMEM group) to 0.269 +/- 0.009 pg/mL (P < 0.05).

CONCLUSIONSAzithromycin may inhibit NF-kappaB activity, decrease TNF-alpha secretion and thus lessen cytotoxicity of CSE to A549 cells.

Anti-Bacterial Agents ; pharmacology ; Azithromycin ; pharmacology ; Cells, Cultured ; Epithelial Cells ; drug effects ; Humans ; Immunohistochemistry ; Lung ; drug effects ; metabolism ; pathology ; NF-kappa B ; analysis ; Smoke ; adverse effects ; Tobacco ; adverse effects ; Tumor Necrosis Factor-alpha ; analysis

Objective:To evaluate the effect of transcutaneous electrical acupoint stimulation (TEAS) on the sleep quality after cesarean section and postpartum depression in parturients with sleep disorder.Methods:A total of 225 parturients, aged 20-45 yr, weighing 50-80 kg, of American Society of Anesthesiologists physical status Ⅰ or Ⅱ, scheduled for elective cesarean section, were enrolled in this study.The Pittsburgh Sleep Quality Index (PSQI) scale was used to investigate the sleep quality before operation.PSQI score<7 was defined as having no sleep disorder, and the patients were included in the non-sleep disorder group (NSD group, n=76). PSQI score≥7 was defined as having sleep disorder, and the patients were randomly divided into sleep disorder group (SD group, n=73) and TEAS group ( n=76). Routine combined spinal-epidural anesthesia was performed in NSD group and SD group.In TEAS group, Neiguan, Baihui, Zusanli and Sanyinjiao acupoints were selected for performing TEAS from the completion of combined spinal-epidural anesthesia to the end of operation, and TEAS was performed for 30 min on the 1st and 2nd days after operation.Patient-controlled intravenous analgesia was applied after operation in the three groups.The blood samples were taken from the cubital vein before operation and at 1 and 2 days after operation for determination of the plasma melatonin and prolactin concentrations (by enzyme-linked immunosorbent assay). The Leeds Sleep Evaluation Questionnaire (LSEQ) was used to evaluate the quality of sleep before operation and at 1, 2 and 7 days after operation.The Edinburgh Postpartum Depression Scale was used to evaluate the postpartum depression at 6 weeks after operation. Results:Compared with NSD group, LSEQ scores were significantly decreased at each time point after operation, the incidence of postpartum depression was increased, and the concentrations of plasma melatonin and prolactin were decreased, and the lactation initiation time was prolonged in SD group ( P<0.05). Compared with SD group, LSEQ scores were significantly increased at each time point after operation, the incidence of postpartum depression was decreased, and the concentrations of plasma melatonin and prolactin were increased, and the lactation initiation time was shortened in TEAS group ( P<0.05). Conclusion:TEAS can raise the the sleep quality after cesarean section and reduce the occurrence of postpartum depression in the parturients with sleep disorders.

OBJECTIVETo study the efficacy and safety of noninvasive ventilation (NV) for treating children with obstructive sleep apnea.

METHODSTwenty-one children confirmed obstructive sleep apnea hypopnea syndrome (OSAHS) with full-night polysomnography (PSG) or ambulatory screening device were enrolled in the study. The NV treatment was carried out successfully for all cases. Nasal continuous positive airway pressure (nCPAP) compliance data were gathered via clinical follow-up examination, telephone interview, or mailed questionnaire. The statistical analysis was performed with SPSS 11.0 statistical software. Pre- and on-nCPAP parameters were compared with paired t-test. Twenty-one OSAHS children (17 boys, 4 girls) were enrolled into the study. The mean age of the children was 4. 5 years; ranging from 40 days to 11 years.

RESULTSnCPAP pressure was increased from 4 cm H2O by (1 cm H2O = 0.098 kPa) 0.2 cm H2O each time to the treating pressure which was between 4.8 and 16 cm H2O. Before nCPAP treatment, apnea hypopnea index (AHI) was (80.8 +/- 45.1)/h, the lowest pulse oxygen saturation (SPO2) 0.557 +/- 0.135 and SPO2 <0.90 time during sleep (42.9 +/- 31.9) %, which were much worse compared to that with nCPAP treatment, the above parameters decreased to (6.7 +/- 12.4)/h, 0.862 +/- 0.082, (1.1 +/- 2.5) % respectively(P <0.01).

CONCLUSIONSNoninvasive ventilation is a safe and effective treatment for OSAHS children. It is possible to use nCPAP as a short-term treatment or as a long-term treatment at home.

Child ; Child, Preschool ; Continuous Positive Airway Pressure ; Female ; Humans ; Infant ; Male ; Polysomnography ; Sleep Apnea, Obstructive ; therapy