Hypoxic-ischemic brain damage is a serious complication of perinatal asphyxia. Enriched environment is the living condi-tions for the promotion of feeling, cognition and behavior. Enriched environment may promote the repairing of hypoxic-ischemic brain dam-age in term of praxiology, morphology and molecular biology, that enriched environment may regulate the secretion and release of various factors, and enhance synaptic plasticity, induce neuron regeneration, inhibit its apoptosis, and result in ethological and morphological recov-ery.

Objective To study the effect of cluster needling of scalp acupuncture combined with rehabilitation on neurological function and expression of basic fibroblast growth factor (bFGF) and angiostatin (AS) in rats after focal cerebral ischemia. Methods 90 male Sprague-Dawley rats were randomly divided into sham operation group, model group, acupuncture treatment group, rehabilitation treatment group and acupuncture and rehabilitation treatment group, each group was further divided into 3 days, 7 days and 14 days subgroups (n=6). Permanent cerebral ischemia rat model was established according to Longa's method. The model group and the sham operation group accepted no treatment, the acupuncture treatment group was treated by cluster needling of scalp acupuncture, the rehabilitation treatment group received the treadmill training, the acupuncture and rehabilitation treatment group was treated by acupuncture and rehabilitation therapy. 3 days, 7 days, 14 days after operation, the neural function was evaluated with the modified Neurological Severity Score (mNSS), the expression levels of bFGF and AS proteins were detected by Western blotting. Results Compared with the model group, the acupuncture treatment group and the rehabilitation treatment group, mNSS decreased, the expression of bFGF protein increased, and the expression of AS protein decreased in the acupuncture and rehabilitation treatment group 3 days, 7 days, 14 days after operation (P<0.05). Conclusion Acupuncture and rehabilitation therapy can reduce the neurological function defect in rats with focal cerebral ischemia, which may be related to the upregulation of bFGF protein expression and down-regulation of AS protein expression.

OBJECTIVE To investigate mycoplasma infection in ICU patients.METHODS Sixty-five samples from blood,respiratory tract and genitourinary tract of patients were collected respectively from Oct 2007 to July 2008 in ICU.Mycoplasma pneumoniae(Mp),Urealasma urealytium(Uu) M.fermentans(Mf) and M.penetrans(Mpe) were cultivated by modified mycoplasma fluid and solid medium.Mf and Mpe positive isolates were verified by nested polymerase chain reaction(rPCR),Mp and Uu were confirmed by fluorescent quantitative PCR.RESULTS It was found that the positive detection rate for Mp was 12.3%(8/65)in blood and 35.4%(23/65) in respiratory tract excreta and for Mu 1.5%(1/65) and 26.2%(17/65) in blood or Genitourinary tract,respectively.Mpe and Mf did not detected.CONCLUSIONS The state of mycoplasma infection is very severe,and often accompanies bacterial infection.It is necessary to consider mycoplasma when chose antibiotics.

Objective To investigate the effect of electro-acupuncture pretreatment on content of interleukin (IL)-1βand IL-6 in serum and ischemic penumbra, and apoptosis in ischemic penumbra in rats after cerebral ischemia-reperfusion injury. Methods Thirty-six male Sprague-Dawley rats were randomly divided into sham group (n=12), model group (n=12), and electro-acupuncture pretreatment group (n=12). The middle cerebral arteries were occluded for 120 minutes and reperfused. Twenty-four hours after reperfusion, the level of IL-1βand IL-6 in serum and brain tissue was detected with enzyme-linked immunosorbent, and apoptosis of ischemic penumbra was detected with TU-NEL. Results The content of IL-1βand IL-6 in the serum and brain tissue, and the number of TUNEL-positive cells decreased in the elec-tro-acupuncture pretreatment group compared with that in the model group (P<0.01). Conclusion Electro-acupuncture pretreatment may in-hibit inflammatory response and apoptosis in cerebral ischemia-reperfusion injury.

10.3969/j.issn.2095-4344.2013.25.016

Health manpower is key to the functioning of the health system. There exists a general need to strengthen health human resources in countries at large as they achieve universal health coverage. Through the systematic collection and sorting out of the declarations, initiatives, guidelines in the world and topics at the World Health Assemblies on health manpower-related issues since 2000, this paper summarized and analyzed the key issues and trends on health manpower planning, education and training, international migration, and compensation management, in order to provide reference for China′s health manpower management and practice.

Objective:To investigate the role of combinational elastography in the dynamic quantitative evaluation of liver transplantation.Methods:From April to December 2019 in Tianjin First Central Hospital, 27 cases of the liver transplant patients and donors were examined by shear wave elastography and real-time tissue elastography, respectively on donor preoperative within 24 h and postoperative day 1, day 7, in order to obtain liver elastic modulus E, measured average relative strain value (MEAN), the index activity (A) and acoustic attenuation measurement (ATT), and to obtain pathologic specimens during operation, including: hydropic degeneration, inflammation, necrosis, steatosis. AST, ALT, TB, DB were detected by automatic biochemistry analyzeron postoperative day 1, day 7. Correlation analysis was performed for pathological parameters and ultrasonic parameters, E, MEAN, A, ATT were selected to plot ROC curve, to analyze ultrasonic parameters′ cut-off value and area under the curve(AUC). According to the pathological signs donor liver were divided into no or mildhydropic group and moderate-to-severehydropic group, non-inflammation group and inflammation group, non-steatosis group and steatosis group. Ultrasonic parameters of donor liver were compared between the two groups, and differences in liver function and ultrasonic parameters on postoperative day 7 were analyzed between the two groups. The change trends of ultrasonic parameters were analyzed from preoperative donor liver to postoperative day 1, day 7 of recipient. The changes of liver function were analyzed from the first day to 7th days. Correlation analysis was performed for liver function and ultrasonic parameters respectively on postoperative day 1, day 7.Results:①Correlation of the ultrasonic parameters of donor liver preoperative within 24 h and pathological parameters: E value and hydropic degeneration and inflammation of pathological signs were significantly and positively correlated( rs=0.597, 0.497; all P<0.05); MEAN and hydropic degeneration and inflammation of pathological signs were significantly and negatively correlated( rs=-0.601, -0.584; all P<0.05); A and inflammation of pathological signs was significantly and positively correlated( rs=0.452, P=0.016); ATT and steatosis of pathological signs was significantly and positively correlated ( rs=0.564, P=0.006). ②The differences of ultrasonic parameters of donor liver preoperative within 24h: E value of moderate-to-severehydropic group was significantly higher than that of the no or mild hydropicgroup ( P<0.001), MEAN value of moderate-to-severehydropic group was significantly lower than that of the no or mildhydropicgroup( P<0.001). E value of inflammation group was higher than that of non-inflammation group ( P=0.012), MEAN value of inflammation group was lower than that of non-inflammation group ( P=0.026). ATT of steatosis group was higher than that of non-steatosis group ( P=0.006). ③The ROC curve indicated that AUCs of E and MEAN diagnosing hydropic degeneration were 0.882, 0.875, and the critical value were respectively 8.72 kPa, 106.62; the AUC of diagnosing inflammation was 0.898, the critical values was 1.26; the AUC of diagnosing steatosis liver was 0.868, the critical value was 0.515 dB·cm -1·MHz -1. ④There were no statistically significant differences in liver function and ultrasonic parameters on postoperative day 7 between no or mildhydropic group and moderate-to-severehydropic group(all P>0.05). There were no statistically significant differences in liver function and ultrasonic parameters on postoperative day 7 between non-inflammation group and inflammation group(all P>0.05). There were no statistically significant differences in liver function and ultrasonic parameters on postoperative day 7 between non-steatosis and steatosis group (all P>0.05). ⑤E and A values of postoperative day 1 were higher than those of preoperative donor liver and postoperative day 7(all P<0.05), MEAN value of postoperative day 1 was lower than those of preoperative donor liver and postoperative day 7(all P<0.05). ATT of postoperative day 1 was lower than that of preoperative donor liver( P=0.027). ⑥ALT, AST, TB, DB of postoperative day 7 were lower than that of postoperative day 1, the difference was statistically significant ( P<0.05). ⑦On postoperative day 1: E value and ALT, AST, TB, DB were significantly and positively correlated( r=0.641, 0.673, 0.601, 0.575; all P<0.05); MEAN value and ALT, AST were significantly and negatively correlated( r=-0.690, -0.703; all P<0.001); A value and ALT, AST were significantly and positively correlated( r=0.459, 0.442; all P<0.05). On postoperative day 7: E value and ALT, AST, TB, DB were significantly and positively correlated ( r=0.616, 0.729, 0.505, 0.640; all P<0.05); MEAN value and ALT, AST were significantly and negatively correlated( r=-0.602, -0.585; all P<0.05); A value and ALT, AST were significantly and positively correlated( r=0.411, 0.495; all P<0.05). Conclusions:Combinational elastography can dynamically and quantitatively assess the hardness, inflammation, steatosis of liver transplantation, and ultrasonic parameters correlate significantly with pathological and liver function, and provides a certain imaging basis for clinical evaluation of liver quality.

Objective:To obtain the normal reference range of ultrasound hemodynamic parameters after liver transplantation through big data query and statistical analysis, and to analyze its influencing factors.Methods:The clinical liver transplantation Ultrasound Image Database Software V1.0 developed by Tianjin First Center Hospital was used to query adult patients after liver transplantation from December 2012 to June 2021. The ultrasonic hemodynamic parameters including the diameter of portal vein (PVD), the flow velocity of portal vein (PVV), the peak flow velocity of hepatic artery (S), the end diastolic flow velocity of hepatic artery (D), the S/D of hepatic artery, the resistance index of hepatic artery (RI), the diameter of middle hepatic vein (MHVD), the flow velocity of middle hepatic vein (MHVV), the diameter of right hepatic vein (RHVD), the flow velocity of right hepatic vein (RHVV), in the first day (1D), the seventh day (7D), the first month (1M), the sixth month (6M), the first year (1Y), the fifth year (5Y) and the tenth year (10Y) after operation were analyzed statistically, and the 95% reference value range of each parameter was obtained.Results:A total of 1 740 patients with 12 242 monitoring results after adult liver transplantation were included, and the longest follow-up time was 22 years. There was no significant change in PVD. PVV decreased slightly from postoperative 1D to long-term follow-up. The S and D of hepatic artery were the highest in group 7D after liver transplantation, and then decreased gradually with the extension of postoperative time. Hepatic artery S/D was the lowest in group 7D after operation, with the extension of monitoring time after liver transplantation, it showed an upward trend, but fluctuated. Hepatic artery RI was the highest in postoperative 1D group, and fluctuated with the extension of monitoring time after liver transplantation. There was no significant change in MHVD and RHVD.MHVV and RHVV were the highest in group 7D after liver transplantation, with the extension of postoperative monitoring time, they showed a decreasing trend and fluctuated. The normal range of each parameter was estimated according to the range of 95% medical reference value. The influencing factors of blood flow monitoring of transplanted liver were analyzed, including the various factors in perioperative period, the surgery, the primary disease before operation, the source of donor, the postoperative infection, rejection, drug damage, individual differences and so on.Conclusions:This study obtains the trend of each parameter with the extension of follow-up time and the reference value range of each parameter after liver transplantation, which is of great clinical significance for early detection and diagnosis of postoperative vascular complications. However, the blood flow after adult liver transplantation is affected by many factors. In clinical monitoring, it is necessary to make judgment combined with the individual state of patients and conduct dynamic follow-up.

Arginine vasopressin （AVP），also known as antidiuretic hormone，is a highly conserved neuropeptide secreted by the supraoptic or paraventricular nucleus of the hypothalamus and has complex physiological functions. This article reviews the physiological properties of AVP and elaborates on the possible involvement of AVP in sleep-arousal regulation via the hypothalamic orexinergic and noradrenergic systems and the role of AVP in maintaining circadian homeostasis by facilitating intercellular coupling of suprachiasmatic nucleus neurons，as well as the potential role of AVP in the regulation of anxiety and depression.

The authors systematically reviewed the progress of health human resources development, personnel management system and conceptual changes from 2011 to 2020 in China, and analyzed the status quo in this regard. The past 10 years have witnessed rapid progress of health human resources, namely better personnel management system and constant innovation in human development concepts. As required by the strategy of empowering the country with talents in the new era, as well as the overall promotion for the Healthy China initiative and the high-quality development of the health industry, higher requirements have been put forward for the quantity and quality, structural distribution and management innovation of health human resources. Therefore it is necessary to further expand the coverage of talents work and innovate talents policy, thus keeping the upgrade of the capability and competence of health talents.