Objective To explore the association between the lung function and the related electroneurophysiological parameters in patients with chronic obstructive pulmonary disease (COPD). Methods Fifty COPD patients were studied. The lung function and the phrenic motor nerve conduction (PNC) were examined, respectively. Thirty cases of non respiratory disorders served as control. The lung function tests included maximal voluntary ventilation (MVV%), forced vital capacity (FVC), force expiratory volume (FEV 1) and RV/TLC% (residual volume, RV; total lung capacity, TLC). The phrenic nerve was stimulated electrically at the midpoint of the posterior border of the sternomastoid muscle, and the diaphragmatic compound muscle action potential (dCMAP) was recorded between the 7th and 8th intercostal space and xiphoid process. Results The relative values of MVV%, FVC 1/FVC 1% and RV/TLC% were 49.6?18.8, 62.5?16.4 and 54.1?8.0, respectively, which was significantly lower than that expected. There was no significant difference with regard to the PNC latency between the patients and the controls. The dCMAP amplitude ratio in the COPD patients was significantly lower than that of the controls, i.e., the dCMAP amplitude decreased in the COPD patients. Conclusion The decreased dCMAP might be associated with abnormal lung function. The PNC examination would provide valuable information for the evaluation of diaphragmatic dysfunction in those with abnormal lung function.

Objective To study the relationship of lung function and the diaphragmatic nerve electrophysiological changes in elderly patients with chronic obstructive pulmonary disease(COPD).Methods The phrenic nerve motor conduction(PNC),diaphragmatic motor evoked potentials(dMEP)and diaphragmatic compound muscle action potentials(dCMAP)were detected in 50 COPD patients and 50 healthy controls aged 60 years and over,respectively. Results (1)The lung function of elderly COPD patients were significantly less than that of control group(P0.05),the lower amplitude of dCMAP than the control(P

OBJECTIVE:To study the inhibitory effect of melatonin(MT)on the increased influx of Ca 2+ induced by L-glutamate in cultured rat neurons.METHODS:Fura-2/AM,a Ca 2+ sensitive fluorescent indicator was used to load the brain cells isolated from new-born rats,and the intracellular dissociative Ca 2+ concentration(〔Ca 2+ 〕i)was measured with fluores?cence-spectrophotometer.RESULTS:The L-glutamate of concentration500?mol/L could markedly promote the influx of Ca 2+ and intracellular free Ca 2+ concentration(P

Objective To explore the effect of nursing interventions on the postpartum psychogenia. Methods Nursing intervention measures were put into practice continuously for the prenatal and postnatal women. Results The incidence rate of the postpartum psychogenia by nursing interventions was significantly reduced. Conclusion To bring the continuous nursing interventions into effect,women after delivery can optimistically acclimatize oneself to the new role and their Flexibility to the new role and the peripheral relationship was improved.The incidence of the postpartum psychogenia was effectively reduced and their quality of life was significantly improved.

The present investigation was performed in fifteen adult rats using four fluorescent tracers, including 4'-6-diamidino-2-phenylindol. 2 HC1 (DAPI), nuclear yellow (NY), propidium iodide (PI), and fast blue (FB), which were divided into four sets: PI-DAPI, PI-NY, DAPI-NY, and FB-NY. In each set two fluorescent tracers were used separately to label gastric corpus and pylorus antrum. In the medulla oblongata, the labelled cells in the dorsal motor nucleus of vagus (DmnX) were observed in every animal, but those in the nucleus ambiguus (nA) were only seen. in 11 cases and in the nucleus tractus solitarius (nTs) in 5 cases. In addition, labelled cells were also found in laminae V of the posterior grey columns of the thoracic (T6-9) spinal cords, spinal ganglia and sympathetic trunks. The results of counting and analysing the labelled cells of DmnX of both sides of 75 sections in four cases are as follows: 1233 cells on the left, including 1143 labelled cells of gastric corpus (92.7%), 63 labelled cells of pylorus antrum (5.1%), 27 double labelled cells (2.2%); 1007 cells on the right, including 930 labelled cells of gastric corpus (92.3%), 41 labelled cells of pylorus antrum (4.1%), and 36 double labelled cells (3.7%). The results indicate that PI is not fitted for 'long distance labelling in peripheral nervous system; the density of vagus innervation of gastric corpus is larger than that of pylorus antrum; a part of the nerve endings of vagus postganglionic neurons are distributed both in gastric corpus and in pylorus antrum; a part of postganglionic neurons of sympathetic fibres are located at the sympathetic trunk.

0.05). It was revealed by correlation analysis that p-AMY level was negative correlated with that of fasting serum glucose (r=-0.127 6), 2h-glucose (r=-0.096 4) and GSP (r=-0.109 4), implying the hyper-glucose might increase pancreas fibrosis and lead to decreased secretion of p-AMY. Conclusion Changes of serum digestive enzymes are correlated with the progress of diabetes mellitus and hypertension, may reflect the pancreatic function, and should be much concerned.

Objective To investigate correlation between seizures and uric acid level in the hippocampus in a mouse model with acute limbic seizures by pharmacological and genetic method. Methods Normal male C57BL/6 and mutant mice were used in this study,including urate oxidase overexpression (UOx-OE) and urate oxidase knock-out (UOx-KO) ;These mice were divided into the following groups,including the control,KA, All ,OE ,KO group respectively;during the experiment ,behaviors ,latency and duration time were recorded;dialysates were collected by microdialysis technique and uric acid level was detected by FPLC;Uric acid in the hippocampus,seizures status,latency and duration were compared. Results Twenty-four mice in total were enrolled and only 1 death occurred until the end of the study. Seizures state appeared after KA treatment. Compared to the KA group,uric acid and generalized seizures declined by the treatment of KA and All (P< 0.05) . Compared to the KA group,uric acid,latency and generalized seizures elevated in the KO group (P < 0.05). Compared to the KA group,there was no difference of latency,duration,partial and generalized seizures occurring in the OE group (P> 0.05). Conclusions Uric acid level in the hippocampus of mice may have effects on seizures ,in which it suggests that uric acid and its relevant signal pathway could be a potential therapy target in seizures clinically.

Objective To investigate the effects of micro alcohol on serum enzymes in vitro and vitro Methods Serum alcohol and ALT?AST?GGT?ALP?CK?LDH?AMY?LIPA activities were measured before and after alcohol consuming (1 ml/kg) in 14 volunteers Meanwhile, the direct inhibitory effects of alcohol on the serum enzymes were studied by comparing the serum enzyme activities with or without alcohol Results Alcohol consuming could depress the serum AST activity from (24 04?3 66) U/L to (22 25?3 27) U/L and LIPA activities from (155 86?93 51) U/L to (128 35?84 85) U/L, whereas increase the other serum enzyme activities, but only serum AMY were found statistic difference [from (48 78?10 66) U/L to (55 50?12 60) U/L] The inhibitory effects of alcohol on all the measured enzymes were found in vitro studies Conclusions Alcohol could obvious influence the serum enzyme activities both in vivo and vitro Avoiding the contamination of alcohol during sample collection and routine laboratory work is necessary

Objective: To investigate the effect of scalp point-through-point acupuncture on 200 kDa neurofilament protein (NF-200) in rats with acute cerebral infarction and explore its mechanism on nerve plasticity in cerebral infarction rats. Methods: Healthy male Wistar rats were randomly allocated to sham operation (Group A), model (Group B) and acupuncture (Group C) groups. A rat middle cerebral artery occlusion (MCAO) model of cerebral ischemia was made. NF-200 mRNA was measured by reverse transcriptase polymerase chain reaction (RT-PCR) in each group on the 7th, 14th and 28th days. Results: The cerebral expression of NF-200 in group C was significantly different from those in groups A and B (P＜0.05); there was a significant difference between groups C and B or A at different time windows (P＜0.01),indicating that scalp point-through-point acupuncture could improve the cerebral expression of NF-200. Conclusion: Scalp point-through-point acupuncture can improve neural function,promote the recovery of limb function and increase the expression of NF-200 after cerebral ischemia, exerting a regulative effect on neuronal plasticity in the brain.

Objective To investigate the effects of continuous positive airway pressure (CPAP) on the levels of hemorheology and C-reactive protein in patients with obstructive sleep hypopnea apnea syndrome (OSAHS). Methods 58 moderate to severe OSAHS subjects were selected as treatment group and 32 healthyadults were selected as control group. Hemorheology and C-reactive protein in all subjects were examined and compared. The levels of hemorheology and C-reactive protein were also examined and compared before and after 3 months CPAP treatment in treatment group. Results In treatment group, the levels of the whole blood viscosity and hs-CRP were significantly higher than those in control group (P < 0.01). After treatment of CPAP for three months, the levels of the whole blood viscosity and hs-CRP obviously decreased (P < 0.01). Conclusion Levels of hemorheology and hs-CRP are elevated in patients with OSAHS and CPAP therapy could effectively decrease serum levels of hemorheology and hs-CRP in patients with OSAHS.