Objective To investigate the accuracy of serum S-100β protein and neuron specific enolase (NSE) level in predication of postoperative delirium (PD) in patients of different ages.Methods Four hundred ASA Ⅰ -Ⅳ patients of both sexes weighing 40-82 kg undergoing abdominal surgery performed under general anesthesia were divided into 4 age groups:group Ⅰ 18-44 yr; group Ⅱ 45-59 yr; group Ⅲ 60-74 yr and group Ⅳ ≥75 yr.The diagnosis of PD was made by using confusion assessment method.The incidence of PD was recorded within 72 h after operation.Each group was further divided into PD and non-PD subgroups.Blood samples were taken at 1 day before operation (T1),during their stay in PACU (T2) and at 24 and 72 h after operation (T3,4 ) for determination of serum S-100β protein and NSE concentrations.The receiver operating characteristic (ROC) curve for serum S-100β protein concentration in determining the PD efficacy was plotted.Results The incidence of PD was significantly higher and the duration was significantly longer in groups Ⅲ and Ⅳ than in groups Ⅰ and Ⅱ,and in group Ⅳ than in group Ⅲ (P ＜ 0.05).There was no significant difference in the serum S-100β protein concentration between PD subgroup and non-PD subgroup in groups Ⅰ - Ⅲ ( P ＞ 0.05).Compared with that at T1 and in nonPD subgroup,the serum S-100β protein concentration was significantly increased in PD subgroup in group Ⅳ,and the serum NSE concentration was significantly decreased at T2,3 in PD subgroup in group Ⅰ (P ＜ 0.05).There was no significant difference in the serum NSE concentration between PD subgroup and non-PD subgroup in groups Ⅱ -Ⅳ.The analysis results of the ROC curve showed that:the area under the curve for the serum S-100β protein concentration and 95％ confidence interval were 0.329 (0.127-0.531),0.352 (0.168-0.536),0.619 (0.466- 0.772) and 0.921 (0.846-0.995),the sensitivity was 50％,50％,56％ and 88％,and the specificity was 29％,22％,46％ and 86％ in groups Ⅰ-Ⅳ respectively.Conclusion Increase in the serum S-100β protein concentration can be used in predicting the development of PD in patients ≥75 yr,but the serum NSE protein concentration can not be used.

Objective To study the method of measuring the position accuracy and the step distance accuracy of afterloading system with192Ir source by using flushing-free film.Methods The position accuracy and the step distance accuracy of a China-made afterloading system with192Ir source was measured by using GAFCHROMIC (R) EBT3 flushing-free film.The film was scanned to proper image format,required by dose analysis software,by EPSON PREFACTION V700 PHOTO scanner.Then images are analyzed by using film dose analysis software in SNC Patient 5.2.Results With focus on the center of active section of source,the position accuracy of this afterloading system with192Ir source was-0.75 mm.Using film analysis could make the step point to tell apart if the step distance was 5 mm away by the method of film analysis,but couldnot make it to tell apart if the step distance was 2.5 mm away.The 2.5 mm step distance accuracy could be judged if the distance between the 1 st point and the 3rd point was 5 mm,then the 2.5 mm step distance could be deemed to no deviation.The 5 mm step distance of this afterloading system had no deviation in continuous 9 step points measured by flushing-free film.The indirect measuring results of the 2.5 mm step distance had no deviation as well.The position accuracy of this afterloading system measured with the flushing-free film accorded with the national standards.Conclusions The method of measuring the position accuracy and the step distance accuracy of the afterloading system with192Ir source by using flushing-free film is technically feasible.

OBJECTIVETo investigate the effect of maternal deprivation on the activity of hypothalamo-pituitary-adrenal (HPA) axis, acute stress response and the sex hormone receptors expression in hypothalamic paraventricular nucleus (PVN) in female rats.

METHODSMaternal deprivation model was induced in female Sprague-Dawley (SD) rats. Foot shock was given at different stages of estrus cycle during the adulthood. Plasma estradiol, testosterone and adrenocorticotropin (ACTH) levels were determined by radioimmunoassay; and plasma corticosterone level was measured by enzyme linked immunosorbent assay. The expression of androgen receptor (AR) and estrogen receptor (ER-β) in the hypothalamic PVN was detected by immunohistochemistry.

RESULTSDecreased plasma ACTH and corticosterone levels were found in the proestrus of female rats with maternal deprivation (P=0.012 and P=0.019, respectively). A significant down-regulation (P=0.008) of PVN-AR, but not PVN-ER-β expression was found in female rats with maternal deprivation.

CONCLUSIONMaternal deprivation may reduce the HPA axis activity in female SD rats, which is closely correlated with the fluctuation of the circulating sex hormones. The androgen in the hypothalamus seems to play a more important role than the estrogen in this procedure.

Adrenocorticotropic Hormone ; blood ; Animals ; Corticosterone ; blood ; Estradiol ; blood ; Female ; Hypothalamo-Hypophyseal System ; physiopathology ; Maternal Deprivation ; Paraventricular Hypothalamic Nucleus ; metabolism ; Pituitary-Adrenal System ; physiopathology ; Rats ; Rats, Sprague-Dawley ; Receptors, Androgen ; metabolism ; Receptors, Estrogen ; metabolism ; Stress, Physiological ; Testosterone ; blood

Traditional Chinese medicine (TCM) experienced a gradual course in recognition of the toxicity of Cinnabaris from "nontoxic" to "toxic". The ancient doctors of TCM understood both the toxic property and the regularity of increasing toxicity of Cinnabaris. In long-term clinical practice they developed the methods of detoxification guiding the safe use of Cinnabaris. The toxicity of Cinnabaris is produced by mercury existed in it. Improper administration leading to an acute absorption or chronic accumulation was the main cause of clinical adverse effects. Kidney was the main poisoning target organ. On the other hand, improperly combinative application of Cinnabaris with other drugs of TCM or western medicine could increase the toxicity. Therefore, the crucial approach to avoid the poisoning is to use Cinnabaris properly.
Animals ; History, 16th Century ; History, 17th Century ; History, 20th Century ; History, Ancient ; Hot Temperature ; Humans ; Materia Medica ; history ; toxicity ; Mercury Compounds ; history ; toxicity ; Mercury Poisoning ; etiology ; Sulfates ; history ; toxicity

This article made a brief analysis of clinical adverse effects of cinnabar. Except for allergic reaction, almost all the adverse events of cinnabar were caused by unreasonable application. The majority of the poisoning cases were associated with excessive and/or long-term dosage, and improper preparation methods, such as decocting, heating or fumigating. Children showed to be prone to poisoning. The poisoning caused by unreasonable use of cinnabar should be considered to be drug alert, but not advert effect. And the toxicity of cinnabar could be avoided by normalizing the preparation method, controlling the dosage and duration.
Chemical and Drug Induced Liver Injury ; etiology ; Coma ; chemically induced ; Drug Compounding ; adverse effects ; Drug Incompatibility ; Drug Overdose ; Gastrointestinal Diseases ; chemically induced ; Humans ; Hypersensitivity ; etiology ; Mercury Compounds ; adverse effects ; poisoning ; Mercury Poisoning ; prevention & control ; therapy

Acute coronary artery syndrome (ACS) was confirmed by coronary arteriography in 398 patients,and 378 healthy persons served as the control group.Serum uric acid in ACS and control group showed normal distribution,and serum uric acid level in ACS group (322?107 )?mol/L was significantly higher than those in control group (302?77)?mol/L (P＜0.01 ).The prevalence of hyperuricemia (HUA) was 27.0% in male patients and 25.2% in female.Systolic blood pressure,diastolic blood pressure,fasting plasma glucose,total cholesterol,triglycerides,creatinine and blood urea nitrogen in ACS group were higher than those in control group (all P＜0.01 ).Muhivariable analyses adjusted for age and sex indicated that raised fasting plasma glucose,total cholesterol,uric acid and mean arterial pressure were risk factors for coronary artery stenosis in ACS,and HUA played a role in the pathogenesis of ACS.

Objective:To investigate the advantage of three dimensional(3D)-printed tissue compensators in radiotherapy for superficial tumors at irregular sites.Methods:A subcutaneous xenograft model of prostate cancer in nude mice was established. Mice were randomly divided into no tissue compensator group( n=6), common tissue compensator group( n=6), and 3D-printed tissue compensator group( n=6). Computed tomography (CT) images of nude mice in the 3D-printed tissue compensator group were acquired. Compensator models were made using polylactic acid, and material properties were evaluated by measuring electron density. CT positioning images of the three groups after covering the corresponding tissue compensators were acquired to delineate the gross tumor volume (GTV). Nude mice in the three groups were irradiated with 6 MV X-rays at the prescribed dose. The prescribed dose for the three groups was 1 500 cGy. The dose distribution in the GTV of the three groups was calculated and compared using the analytical anisotropic algorithm in the Eclipse 13.5 treatment planning system. The metal-oxide-semiconductor field-effect transistor was used to verify the actual dose received on the skin surface of nude mice. Results:The air gap in the 3D-printed tissue compensator group and the common tissue compensator group was 0.20±0.07 and 0.37±0.07 cm 3, respectively ( t=4.02, P<0.01). For the no tissue compensator group, common tissue compensator group, and 3D-printed tissue compensator group, the D95% in the target volume was (1 188.58±92.21), (1 369.90±146.23), and (1 440.29±45.78) cGy, respectively ( F=9.49, P<0.01). D98% was (1 080.13±88.30), (1 302.76±158.43), and (1 360.23±48.71) cGy, respectively ( F=11.17, P<0.01). Dmean was (1 549.08±44.22), (1 593.05±65.40), and (1 638.87±40.83) cGy, respectively ( F=4.59, P<0.05). The measured superficial dose was (626.03±26.75), (1 259.83±71.94), and (1 435.30±67.22) cGy, respectively ( F=263.20, P<0.001). The percentage variation in tumor volume growth after radiation was not significantly different between the common tissue compensator group and the 3D-printed tissue compensator group ( P>0.05). Conclusions:3D-printed tissue compensators fit well to the body surface, which reduces air gaps, effectively increases the dose on the body surface near the target volume, and provides ideas for radiotherapy for superficial tumors at some irregular sites.

OBJECTIVETo explore the clinical effect of low dose pituitrin in children with septic shock.

METHODSA total of 48 pediatric cases with septic shock, in whom 6 hours, conventional treatment could not reverse shock from January 2008 to December 2010, were selected for this study. The patients were divided into two groups randomly (completely random design) (control group 24, remedial group 24). The conventional treatment included antibiotics/fluid resuscitation/correcting acid-base imbalance, glucocorticoid, organ (heart/lung) support, dopamine 1 - 15 µg/(kg·min) and norepinephrine 0.5 - 2 µg/(kg·min) pumped in continuously in the control group. In initial 6 hours the same treatment was given to the remedial group, while low dose pituitrin (0.01 - 0.03 U/min) was pumped additionally during the rest of time. The therapeutic effect on correcting shock was evaluated in both groups.

RESULTSThe total effective rate was 76.2% in the remedial group and 40.0% in the control group; the mortality was 33.3% and 60% respectively. The difference between both groups was significant (P = 0.025).

CONCLUSIONLow dose pituitrin could improve the clinical effect significantly in children with septic shock in whom 6 hours conventional treatment failed to correct shock, shorten the total periods of treatment, and decrease mortality.

Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Norepinephrine ; therapeutic use ; Pituitary Hormones, Posterior ; administration & dosage ; therapeutic use ; Shock, Septic ; drug therapy ; Treatment Outcome ; Vasoconstrictor Agents ; therapeutic use

OBJECTIVETo evaluate total antioxidant capacity (TAC) of seminal plasma in fertile and infertile men and understand the relation between seminal plasma TAC and male fertility.

METHODSTwo hundred and twenty-five infertile men were divided into 10 cases of obstructive azoospermic men, 42 cases of non-obstructive azoospermic men,20 cases of oligozoospermic men, 78 cases of asthenozoospermic men, 57 cases of oligoasthenozoospermic men, and 18 cases of normozoospermic men, then 28 fertile men were taken as the control. The seminal parameter analysis was performed by computer-assisted semen analysis (CASA) system. Seminal plasma TAC was measured using spectroscopic analysis.

RESULTSSeminal plasma TAC were (1.71 +/- 1.33) U in obstructive azoospermic men, (12.73 +/- 9.44) U in non-obstructive azoospermic men, (10.85 +/- 6.64) U in oligozoospermic men, (13.88 +/- 8.24) U in asthenozoospermic men, (11.20 +/- 7.02) U in oligoasthenozoospermic men, (18.07 +/- 8.73) U in normozoospermic men, and (19.82 +/- 6.33) U in fertile men. There was no significant difference in TAC between normozoospermic men and fertile men (P > 0.05). Compared with fertile men, seminal plasma TAC in other infertile groups was significantly lower (P < 0.01). There were significantly made positive correlation between seminal plasma TAC and sperm density (r = 0.182, P < 0.05), as well as sperm with grade a (r = 0.150, P < 0.05).

CONCLUSIONSeminal plasma TAC is closely related to male fertility, and the decreased level of TAC in seminal plasma may be one of the causes of male infertility.

Adult ; Case-Control Studies ; Fertility ; physiology ; Humans ; Infertility, Male ; physiopathology ; Male ; Oxidation-Reduction ; Reactive Oxygen Species ; metabolism ; Semen ; chemistry

OBJECTIVETo elucidate the possible mechanism of oral carcinogenesis and to explore the value of clinical application of the detection of cytokeratin (CK) 19 for oral squamous cell carcinoma (OSCC) patients.

METHODSThe cancerous tissues, para-cancerous tissues and excised lymph nodes were collected from 20 operated patients with OSCC. The patients didn't receive radiotherapy and chemotherapy before hospitalization. The relative expression of CK19 mRNA in those tissues was detected by fluorescent quantitative polymerase chain reaction (FQ-PCR).

RESULTSThe expression of CK19 mRNA in the cancerous tissues was 1.85 and 1.66 times higher than that in normal oral mucosa and in para-cancerous tissues, respectively. The expression of CK19 mRNA in lymph nodes from 9 patients with OSCC was positive and the positive rate was 45% (9/20). The positive rate of CK19 mRNA in all lymph nodes from 9 patients with OSCC was 81.8% (18/22), and the positive rate of CK19 mRNA in all lymph nodes from 20 patients with OSCC was 41.9%(18/43). CK19 mRNA level in the cancerous tissues relative to para-cancerous tissues and normal oral mucosa of the patients whose CK19 mRNA expression was positive was lower than that of the patients whose CK19 mRNA expression was negative in lymph nodes, respectively.

CONCLUSIONThe possible reason that the expression of CK19 mRNA in the cancerous tissues was higher than that in para-cancerous tissues and normal oral mucosa was that the CK19 synthesis in cancerous tissues increased obviously. The detection of CK19 mRNA in lymph nodes was regarded probably as one of the markers for detecting OSCC micrometastasis in lymph nodes. The detection of CK19 mRNA in lymph nodes by FQ-PCR was more sensitive than hematoxylin-eosin staining in diagnosing OSCC micrometastasis.

Carcinoma, Squamous Cell ; Female ; Humans ; Keratin-19 ; Male ; Middle Aged ; Mouth Mucosa ; Mouth Neoplasms ; RNA, Messenger