Action Potentials ; drug effects ; physiology ; Animals ; Cadmium ; toxicity ; Calcium Channels, L-Type ; physiology ; Myocytes, Cardiac ; drug effects ; physiology ; Rats ; Rats, Sprague-Dawley

Objective To investigate the pressures from night shifts among nurses from pediatrics department and find the countermeasures.Methods A self-designed questionnaire was used to investigate the pressures from night shifts among 112 nurses from pediatrics department as well as the reasons.Results 110 of the nurses(98.2%) assumed that the pressures from night shifts was intensive.The main reasons for the pressures came out of heavy workload,shortage of staff and stuff and the unsettled balance between job and family.Conclusion Such measures as reasonable distributions of nurses,abound supply of stuff and reduced working links may be effective for the alleviation of the pressures on nurses at night shifts,motivated activeness in them and then the enhancement of nursing quality.

Aim To investigate the effects of panax nonstaining saponins ( PNS ) on the apoptosis of renal cells induced by cisplatin through the path of mitochon-drion . Methods Male Sprague-Dawley( SD) rats were randomized divided into normal control group, cisplatin model group and the cisplatin+PNS group,with 12 rats of each group. Animals were sacrificed to determine the N-acetyl-β-D-Glucosaminidase ( NAG ) in urine, blood urea nitrogen ( BUN) and serum creatinine ( Cr) concentrations after 8d of intraperitoneal injection. HE-staining was employed to observe renal pathologies. Transmission electron microscopy ( TEM ) was em-ployed to observe the mitochondria of the rats′ injured kidney region. TUNEL staining was employed to detect the distribution of apoptotic cells. Immunnohistochem-istry was used to detect Bax and caspase-9 expression, and expression of Bcl-2 protein was detected by West-ern blot. Results Compared with the normal control group, contents of BUN, serum Cr and urinary NAG levels of rat in the cisplatin model group were increased ( P <0. 01 ) , and some mitochondria of the epithelial cells of renal tubules got injured seriously. The apopto-sis rate of kidney cell was increased ( P<0. 01 ) . The expression of Bax,caspase-9 and Bcl-2 proteins was in-creased ( P < 0. 01 ) . Compared with the cisplatin model group, contents of BUN, serum Cr and urinary NAG levels of rats in the cisplatin model group were decreased ( P <0. 01 ) , and some mitochondria of the epithelial cells of renal tubules were significantly im-proved. The apoptosis rate of kidney cell was decreased ( P<0. 01 ) . The expression of Bax and caspase-9 pro-tein was decreased (P<0. 01),but Bcl-2 protein was increased ( P < 0. 01 ) . Conclusion PNS may in-crease the expression of Bcl-2 protein and decrease the expression of Bax and caspase-9 proteins, which may play a protective role in cisplatin nephritic damage.

Abstract?AIM: To observe the clinical efficacy of intravitreal Lucentis injection combined with panretinal photocoagulation ( PPR ) and compound trabeculectomy for neovascular glaucoma ( NVG) .?METHODS:A total of 14 cases (14 eyes) with NVG were collected from January to November 2015.All cases were treated with intravitreal lucentis injection, PPR and compound trabeculectomy by turns.Intraocular pressure ( IOP) , visual acuity and the complications at pre-or post-surgery were recorded, respectively.?RESULTS: Followed up for 3-6mo, the average IOP preoperatively was significantly decreased than that detected at post-operation ( 18.00 ±6.70 vs 41.65 ± 4.07mmHg, t=11.288, P<0.05).IOP less than 21mmHg with or without the usage of anti-intraocular pressure drugs was defined as the sign of successful or effective surgery, respectively.At the ultimate follow-up, 11 cases were successful, 2 cases were effective, and the success rate was 79%, effective rate was 14%.Only 1 case was applied cyclocryotherapy due to the uncontrolled IOP. Moreover, the results of visual acuity detection demonstrated that 6 eyes got a better visual acuity, 7 eyes remained the same condition and 1 case got no light perception. Meanwhile, 13 cases showed none iris neovascularization during the follow-up; 1 case got a reappearance of iris neovascularization on the third month, which was then dissolved subjected to the intravitreal lucentis injection in combination with PPR. One case developed post -operative hyphema and absorbed after 1wk. No shallow anterior chamber and eyeball atrophy happened.?CONCLUSION:Intravitreal lucentis injection combined with PPR and compound trabeculectomy is an effective and safe therapeutic strategy for the treatment of NVG.

Objective To evaluate the effects of different levels of neuromuscular blockade(NMB)on transcranial electric motor-evoked potentials(TCeMEPs)during idiopathic scoliosis.Methods Thirty American Society of Anesthesiologists physical status Ⅰ or Ⅱ patients of both sexes,aged 11-23 yr,weighing 31-62 kg,scheduled for elective idiopathic scoliosis under general anesthesia,were enrolled in the study.NMB was monitored with train of four(TOF)-Watch SX.The levels of partial NMB were classified into 5 states according to TOF ratio(TOFR)and TOF counts:1 or 2 TOF counts(TOF1),3 TOF counts and TOFR≤15%(TOF2),TOFR 16%-25%(TOF3),TOFR 26%-50%(TOF4),TOFR 51%-75%(TOF5) and TOFR>75%(no NMB).Each state was maintained for 10 min.Failure and false-positive findings in TCeMEP monitoring,development of unexpected body movement and satisfaction with NMB were recorded.Results Compared with no NMB,the failure and false-positive rates of TCeMEP monitoring were significantly increased,the incidence of unexpected body movement was decreased,and the rate of satisfactory NMB was increased at TOF1,TOF2 and TOF3(P<0.05),no significant change was found in failure or false-positive rates of TCeMEP monitoring at TOF4 and TOF5(P>0.05),and the incidence of unexpected body movement was decreased and the rate of satisfactory NMB was increased at TOF4,the rate of satisfactory NMB was increased at TOF5(P<0.05),and no significant change was found in the incidence of unexpected body movement at TOF5(P>0.05).Compared with those at TOF4,no significant change was found in the failure or false-positive rates of TCeMEP monitoring(P>0.05),the incidence of unexpected body movement was significantly increased,and the rate of satisfactory NMB was decreased at TOF5(P<0.05).Conclusion Maintaining TOFR at 26%-50% the partial NMB during surgery does not affect TCeMEP monitoring during idiopathic scoliosis and meets the intra-operative NMB requirements simultaneously,and it is the optimum NMB for this type of surgery.

SHIV-CN97001 played an important role in assessing the immune effect and strategy of the AIDS vaccine which included genes of the predominant prevalent HIV-1 strain in China. In this study, SHIV-CN97001 was in vivo passaged serially to construct pathogenic SHIV-CN97001/rhesus macaques model. To identify variation in the gp120 region of SHIV-CN97001 during passage, the fragments of gp120 gene were amplified by RT-PCR from the plasma of SHIV-CN97001 infected animals at the peak viral load time point and the gene distances (divergence, diversity) were calculated using DISTANCE. The analysis revealed that the genetic distances of SHIV-CN97001 in the third passage animals were the highest during in vivo passage. It had a relationship between viral divergence from the founder strain and viral replication ability. The nucleic acid sequence of the V3 region was highly conservative. All of the SHIV-CN97001 strains had V3 loop central motif (GPGQ) and were predicted to be using CCR5 co-receptor on the basis of the critical amino acids within V3 loop. These results show that there was no significant increase in the genetic distance during serial passage, and SHIV-CN97001 gp120 gene evolved toward ancestral states upon transmission to a new host. This could partly explain why there was no pathogenic viral strain obtained during in vivo passage.

OBJECTIVETo investigate the possibility of evaluation the Chinese medicinal formulae with immune regulation effects according to the immunomics of traditional Chinese medicine.

METHODThe possibility of Chinese medicinal formulae with immune regulation effects was obtained from the discriminant equation of the Chinese medicine with immune regulation effects. The original articles about the Chinese medicinal formulae with immune regulation effects were found since 1980 in CNKI. Using literatures determinate immune effects.

RESULTThere were 53 kinds, that with calculated determination, from total 60 Chinese medicinal formulae with literatures determinate on immune regulation effects. The coincidence was 88% (53/60). The discriminant score was 0. 89 +/- 0. 03 in group one (there were two or more than two articles have been published to support the medicines immune effects and the articles were finished by different unites independently) and was 0.60 +/- 0.29 in group of random Chinese medicinal formulae. There was a significant deviation (P < 0.05).

CONCLUSIONIt was proved preliminarily that the principle of calculation presented in this paper is valuable for the immunomics of traditional Chinese medicine.

Objective:To establish a rapid detection method for human astrovirus based on TaqMan-probe real-time fluorescent quantitative reverse transcription-polymerase chain reaction (RT-PCR).Methods:According to the conservative sequence of human astrovirus ORF1 b gene, we designed the amplification primers and specific fluorescent probe to establish the human astrovirus TaqMan real-time fluorescent quantitative RT-PCR rapid detection method. The specificity, sensitivity and stability of the method were evaluated. We also used this method to detect human astrovirus in clinical samples. Results:The established human astrovirus TaqMan real-time fluorescent quantitative RT-PCR detection method has good specificity and repeatability for human astrovirus, and the sensitivity can reach 10 2 copies/μl. After testing the clinical samples, the detection rate of human astrovirus by our method was 100%. Conclusions:The human astrovirus TaqMan real-time fluorescent quantitative RT-PCR detection method established in this study is simple, rapid, sensitive, specific and stable. It can be used for clinical human astrovirus detection and epidemiological investigation.

Objective To investigate the epidemiological characteristics of incipient neonatal hyperbilirubinemia. Methods The clinical data of admitted neonates with hyperbilirubinemia were retrospectively analyzed from June 2012 to May 2013. Results Two hundred and eight-four neonates with hyperbilirubinemia were enrolled and the ratio of male:female was 1.51:1. For the causes of hyperbilirubinemia, the incidences of ABO hemolytic and sepsis were higher in term infants than those in preterm infants, and the incidences of pneumonia, necrotizing enterocolitis and intracranial hemorrhage were higher in preterm infants than those in term infants (P<0.05). Compared with the preterm infants, the term infants had jaundice appearance and peak at earlier time, shorter duration of jaundice, faster decline rate of jaundice, higher levels of albumin and indirect bilirubin at the peak of jaundice (P<0.01). In the term infants, the time of jaundice appearance and peak were earlier in hemolytic group than those in non-hemolytic group (P<0.05). In preterm infants, the peak of transcutaneous bilirubin was higher in hemolytic group than that in non-hemolytic group (P<0.05). Six cases with bilirubin encephalopathy had abnormalities cranial MRI imaging, and the MRI was not entirely consistent with the peak level of bilirubin. Conclusions There are clinical differences between hemolytic and non-hemolytic hyperbilirubinemia in both term and preterm infants.

Objective To investigate the hepatoprotective effect of silybin-phosphatidylcholine complex(SPC) in sepsis rats.Me-(thods) Fifty Wistar immature rats were randomly divided into 3 groups:normal control(10 cases),septic group(30 cases) and interfe-(rence) group(10 cases).In septic group and interference group,rats were treated by cecal ligation and puncture(CLP).Meanwhile,the interference group was given SPC before 2 hours of CLP and after 2 hours of CLP.Blood of rats was taken from all groups to determine the levels of serum tumor necrosis factor-?(TNF-?),interleukin-1(IL-1),alanine aminotransferase(ALT) and aspartate aminotransferase(AST) at varying intervals.Results The levels of serum TNF-?,IL-1,ALT and AST after CLP were significantly elevated in septic group compared with the normal control group(P