ABSTRACT
Objective To observe the intervention effect of acupuncture on mammalian target of rapamycin(mTOR)of hypoxic-ischemic encephalopathy(HIE)model in newborn rats.Methods Seven-day-old SD rats were randomly devided into six groups.Sham-surgery group:the bilateral common carotid arteries were separated,without ligation,and the rats were without hypoxia.HIE model group:the bilateral common carotid arteries were separated and ligated,and the rats were in low oxygen.In the sham-acpuncture group,four positions were acupunctured:from Baihui,Dazhui,Quchi and Yongquan by 1 cm after hypoxia ischemia.In acpuncture group,four positions were acupunctured:Baihui,Dazhui,Quchi and Yongquan after hypoxia ischemia,positioned according to the ordinary acupoints for acupuncture in rats.In the antagonists group,the HIE model rats were injected wortmannin 5 μl to the left ventricle.The acupuncture and antagonists group had the same operations of antagonists group and acupuncture group at the same time.All the groups were subdivided into four subgroups in terms of four time periods of 1 d,3 d,7 d and 21 d.The morphological changes of organizational structures of hypoxic ischemia side in brain tissue were observed by pathological methods.The levels of mTOR mRNA expression were detected by RT-PCR.Results In acupuncture group, acupuncture treatment for 21 d showed that acupuncture group had clearly organizational structure,regular arrangements of neurons,normal cell outline,relatively clear nucleolus,mitigated swell neuron and hyperplas-tic glial cells.Compared with that of the HIE model group,acupuncture treatment increased mTOR mRNA dramatically on day 1 ,day 3,day 7 and day 21 (Q =7.099 1 ,9.009 9,7.894 0,9.914 7,P ﹤0.05 respective-ly).The expression of mTOR mRNA in acupuncture and antagonists group was significantly higher than that in sham-surgery group on day 1 ,day 3 day 7 and day 21 (Q =9.868 9,15.843 4,21.007 2,P ﹤0.05 respec-tively).In day 21 ,compared with the sham operation group and the HIE model group,the expression of mTOR mRNA in acupuncture and antagonists group were significantly higher (Q =18.236 0,4.729 7, P ﹤0.05 respectively).Conclusion Electroacupuncture treatment can promote the expression of mTOR at the mRNA level and protect brain of newborn rats with HIE.
ABSTRACT
Objective To explore the recovery time of hepatic function in infants with jaundice type of human cytomega-lovirus (HCMV) hepatitis and its influencing factors. Methods The clinical data of 73 infants with jaundice type of HCMV hepa-titis admitted to hospital from February 2005 to October 2012 were retrospectively analyzed. The effects on hepatic function of nine factors including age, sex, liver size, total bilirubin (TBil), direct bilirubin (DBil), alanine aminotransferase (ALT), aspar-tate aminotransferase (AST), total bile acid (TBA) and the loads of HCMV DNA were assessed by Kaplan Meier method, and further analyzed by Cox proportional hazards regression model. Results The results of Cox proportional hazards regression showed that age≤3 month (RR=0.27, 95%CI:0.10-0.70), DBil≤90μmol/L (RR=0.16, 95%CI:0.08-0.32), male (RR=0.49, 95%CI:0.26-0.94) and enlarged liver size<3 cm (RR=0.50, 95%CI:0.27-0.93) were independent factors that shorten the time for TBil back to be normal. Furthermore, AST≤120 U/L (RR=0.16, 95%CI:0.08-0.33) and enlarged liver size<3 cm (RR=0.28, 95%CI:0.15-0.49) were independent factors that shorten the time for AST back to be normal. The time for TBil back to be normal was (2.23 ± 1.54) months, which was significantly shorter than that [(3.63 ± 1.93) months] of AST (t=10.37, P<0.001). Conclusions Jaundice type HCMV hepatitis had good outcome and varied in disease course. The recovery of hepatic function was significantly adversely affected by the degree of cholestasis and hepatomegaly as well as AST level, and early treatment was conducive to the recovery.