Objective To investigate the effect of thrombin and hemoglobin on aquaporin (AQP) and the correlation between AQP and hydrocephalus.Methods Eighty-four clean grade healthy male SD rats were randomly divided into 3 groups:a control group,a thrombin group,and a hemoglobin group using the random number table method.A hydrocephalus model was induced by injecting isotonic saline (0.3 ml),thrombin (0.3 ml[10,U/ml]) and hemoglobin (0.3 ml[150 mg/ml]),respectively into the cisterna magna.According to the deficiency and complement way,each group maintained 24 rats.The relative area of the lateral ventricles,the expression of AQP1 and AQP4,and the correlation between AQP and the area of the lateral ventricles were observed at 1,3,7,and 14 d after molding.Results (1) Compared with the control group,both the thrombin group and hemoglobin group showed hydrocephalus at 1 ,3 ,7 and 14 d,and they were most obvious at 1 day (6.94±0.19% and 6.58±0.15% vs.3.40±0.13%,6.06±0.12% and 5.79±0.09% vs.3.55±0.15%,5.80±0.13% and 5.58±0.08% vs.3.78±0.18%,5.66±0.14% and 5.47±0.13% vs.3.52±0.18 %,respectively).There were significant differences (all P<0.01).(2) The increase of AQP1 was mainly in the basal membrane and apical membrane of ventricular choroid plexus epithelial cells,and the increase of AQP4 was mainly in the ependymal cell of ventricle.The relative expression levels of AQP1 and AQP4 at 1,3,7,and 14 d in the control group were 1.09±0.07 and 1.30±0.15,0.91±0.06 and 1.18±0.12,1.33±0.17 and 1.16±0.08,1.22±0.11 and 1.00±0.10,respectively;the thrombin group were 4.40±0.14 and 3.69±0.11,3.88±0.11 and 3.17±0.07,3.55±0.07 and 2.86±0.13,and 3.36±0.07 and 2.70±0.07,respectively,the hemoglobin group were 4.24±0.07 and 3.55±0.10,3.77±0.08 and 3.04±0.09,3.46±0.07 and 2.76±0.08,and 3.31±0.10 and 2.62±0.08,respectively;the relative expression levels of AQP1 and AQP4 of the thrombin group and hemoglobin group at each time point were significantly higher than those of the control group.There were significant differences among the groups (all P<0.01).There were no significant differences in the relative expression levels of AQP1 and AQP4 mRNAs in the hemoglobin group at each time point (P>0.05);in the thrombin group and hemoglobin group,compared with those at 1 d,the expression levels of AQP1 and AQP4 at 3,7,and 14 d were significantly decreased (all P<0.01);compared with those at 3 d,AQP1 was decreased significantly at 7 and 14 d (P<0.05).The differences were statistically significant (P<0.05).(3) The relative expression levels of AQP1 (r=0.983,P<0.01) and AQP4 (r=0.987,P<0.01) in the thrombin group at each time point were positively correlated with the contralateral ventricular area;and the relative expression levels of AQP1 (r=0.964,P<0.01) and AQP4 (r=0.962,P<0.01) in the hemoglobin group at each time point were positively correlated with the contralateral ventricular area Conclusions After injecting thrombin and hemoglobin into subarachnoid space,it could cause the increased expression levels of AQP1 and AQP4 of ventricles and their surrounding areas.Thrombin and hemoglobin may be the important mediating factors of hydrocephalus after subarachnoid hemorrhage.

OBJECTIVE To investigate the feas-ibility of preserving parotid duct in regional excision of pleomorphic adenoma. METHODS 32 patients with parotid pleomorphic adenoma were treated by regional excision with the preservation of the parotid duct. RESULTS No relapse occurred during 3-6-year follow-up period. Transient facial nerve palsy occurred in only 3.1%(1/32) of patients and the drainage of the parotid duct on the surgical side was preserved. CONCLUSION Remaining function of the parotid gland function was preserved and the facial nerve was well-protected in the regional excision of pleomorphic adenomas, especially for patients with small pleomorphic adenomas.

Objective To review our experiences on perioperative anesthetic management for patients who received percutaneous nephroscopic peripancreatic necrectomy for acute necrotizing pancreatitis.Method The clinical data on 18 patients with acute necrotizing pancreatitis who received percutaneous nephroscopic peripancreatic necrectomy in our hospital from August 2008 to January 2011 were retrospectively analyzed.Results There was a marked fluctuation in hemodynamic status of the patients which required the use of vasoactive drugs during perioperative period.PETCO2 significantly increased after pneumoperitoneum.Tracheal extubation was possible in 11 patients immediately after surgery in the operation room,while 7 patients required tracheal intuhation to be transported back to the surgical intensive care unit (SICU).Conclusion Most patients who underwent percutaneous nephroscopic peripancreatic necrectomy had a varying degree of shock and multi-organ injury before operation.Proper anesthetic induction and maintenance,correct use of vasoactive drugs and lung protective ventilation strategy,and active fluid resuscitation are the keys to good perioperative anesthetic management and to improve treatment results.

Objective: This study aims to estimate the economic burden of disease of outbreak of norovirus gastroenteritis in the Pearl River Delta Region, and provide scientific evidence for the government’s decision-making and control measures. Methods: Using a unified questionnaire, a survey was conducted to the schools and students’ families which had suffered an outbreak of norovirus gastroenteritis in the Pearl River Delta Region from October 2017 to April 2018. Results: The survey found that the mean total economic burden of sick students was 720.41(95%UI=640.45-804.63)RMB. The mean economic burden of sick students who were inpatient, outpatient and self-treatment were 1 712.75(95%UI=328.50-34 00.00), 213.70(95%UI=191.83-236.33) and 58.97(95%UI=43.00-77.69)RMB, respectively. The mean economic burden of transport, extra tutoring and cost of lost labor were 53.63(95%UI=43.98-63.58), 558.49(95%UI=381.40-774.01) and 695.62(95UI=630.25-767.29)RMB. The mean total economic burden of health students was 382.62(95%UI=343.29-424.45)RMB. The mean total economic burden of school was 49 264.53(95%UI=22 363.38-79 976.25)RMB. The total economic burden of disease increases as the level of outbreak increases. The larger the epidemic level, the proportion of sick students’ financial burden gradually decreased, 56.58%,23.27% and 10.93%. Conclusion The high economic burden of disease of norovirus gastroenteritis in the Pearl River Delta Region, respectively, indicating that relevant departments should strengthen the prevention, control and education in order to mitigate the disease economic burden.

Objective To investigate the hemoglobin (Hb) levels during pregnancy and Hb changes from early pregnancy and association with birth weight on infants.Methods Mothers of Zhuang Nationality who participated in the pregnancy care program and delivered at the Pingguo County Hospital from May 2013 to May 2015 were included in this study.Retrospective analysis was applied to collect data of health care and pregnancy outcomes.Multiple regression analysis and unconditional logistic regression model were used for data analysis.Results The mean birth weight appeared as (313 5.92± 435.84) grams.The Hb levels at early pregnancy showed significantly positive association with birth weight.Results from our study demonstrated that when Hb levels increased +1 g/dl at early pregnancy,birth weight would increase 17.61(95％CI:0.60-34.67) grams,in the adjusted model.The Hb levels at late pregnancy were significantly inversely associated with birth weight.Our findings suggested that when Hb levels increased + 1 g/di at late pregnancy,birth weight would reduce 19.61(95％ CI:-37.53--1.70) grams in the adjusted model.Changes in Hb from early pregnancy stages were significantly inversely associated with birth weight after adjusting for confounders and Hb levels in the early pregnancy stages.The results also indicated that when Hb levels increased a + 1 g/dl from early to late pregnancy,the birth weight would decrease 32.63 g(95％ CI:-48.93--16.32).Compared to the non-anemia group,the anemia group showed significantly increase of small-for-gestational-age (SGA)(OR=1.58,95％CI:1.08-2.32) in early pregnancy.Compared to women under the most reduction status,women with the least reduction had a significantly increase of SGA (OR=1.87,95％CI:1.24-2.81) among their infants.With the magnitude of reduction on Hb concentration during pregnancy,the risk of delivering babies with SGA showed a gradual trends of increase.Conclusion Hb levels at early pregnancy were positively associated with birth weight,but the changes of Hb were inversely associated with birth weight at late pregnancy,in women of Zhuang Nationality.Anemia in early pregnancy and the low amplitude of decreased Hb concentration during pregnancy were both risk factors for newborns under less gestational ages.

The protective effects of Da Chai Hu Granules (DCHKL) on islet cells which were incubated with 4 mmol x L(-1) alloxan (AXN) were studied. The viability of islet cells were measured with MTT. Insulin released into medium and in islets was detected by radioimmunoassay. Cell apoptosis rate was determined by flow cytometry. The expression of anti-apoptotic gene Bcl-2 and pro-apoptotic gene Bax in islet cells were measured with RT-PCR (reverse transcription polymerase chain reaction). Serum containing DCHKL can promote the activity of islet cells significantly (P < 0.01). Basal insulin secretion and high glucose-stimulated insulin secretion increased significantly (P < 0.01). Serum containing DCHKL can inhibit apoptosis of islet cells, the ratio of apoptosis was decreased. Serum containing DCHKL increased expression of Bcl-2 mRNA and decreased expression of Bax mRNA. DCHKL can significantly promote proliferation of islet cells and increase the amount of basal secretion of pancreatic islet cells and high glucose-stimulated insulin secretion. The expression of Bcl-2 increased significantly. The expression of Bax decreased significantly. DCHKL have a protective effect on the islet cells.
Alloxan ; toxicity ; Animals ; Apoptosis ; drug effects ; Cell Proliferation ; drug effects ; Cells, Cultured ; Drug Combinations ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Insulin ; metabolism ; secretion ; Islets of Langerhans ; cytology ; drug effects ; metabolism ; Plants, Medicinal ; chemistry ; Protective Agents ; pharmacology ; Proto-Oncogene Proteins c-bcl-2 ; genetics ; metabolism ; RNA, Messenger ; metabolism ; Rats ; Rats, Sprague-Dawley ; bcl-2-Associated X Protein ; genetics ; metabolism

Pyruvate dehydrogenase E1 component subunit beta-1 (PDHB-1) is a gene encoding the β-subunit of pyruvate dehydrogenase complex, which plays an important role in fruit acid accumulation. The aim of this study was to investigate the evolution characteristics of apple PDHB-1 family and its expression in apples with different acid contents. Bioinformatics analysis was performed using databases including NCBI, Pfam and software including ClustalX, MEGA, and TBtools. By combining titratable acid content determination and quantitative real-time PCR (qRT-PCR), the expression of this family genes in the peel and pulp of apple 'Asda' and 'Chengji No.1' with different acid content were obtained, respectively. The family members were mainly located in chloroplast, cytoplasm and mitochondria. α-helix and random coil were the main factors for the formation of secondary structure in this family. Tissue-specific expression profiles showed that the expression of most members were higher in fruit than in other tissues. qRT-PCR results showed that the expression profile of most members was consistent with the profile of titratable acid contents. In the peel, the expression levels of 14 members in 'Asda' apples with high acid content were significantly higher than that in 'Chengji No.1' apples with low acid content, where the expression difference of MdPDHB1-15 was the most significant. In the pulp, the expression levels of 17 members in 'Asda' apples were significantly higher than that in 'Chengji No.1' apples, where MdPDHB1-01 was the most highly expressed. It was predicted that PDHB-1 gene family in apple plays an important role in the regulation of fruit acidity.
Malus/metabolism* ; Fruit/genetics* ; Protein Structure, Secondary

Neointimal hyperplasia after vascular injury is a representative complication of restenosis. Endoplasmic reticulum (ER) stress-induced unfolded protein response (UPR) is involved in the pathogenesis of vascular intimal hyperplasia. PARP16, a member of the poly(ADP-ribose) polymerases family, is correlated with the nuclear envelope and the ER. Here, we found that PERK and IRE1