Objective: To investigate the effect of aqueous extract of Radix et Rhizome Rhodiolae on expressions of HIF-1?, HIF-1? and VEGF in human umbilical vein endothelial cells(HUVECs) exposed to hypoxia. Methods: The effect of different treatment time and concentrations of aqueous extract of Radix et Rhizome Rhodiolae on cellular proliferation were determined with XTT colorimetric assay. The mRNA and protein expressions of HIF-1?, HIF-1? and VEGF were analyzed respectively by quantitative real-time polymerase chain reaction with SYBR Green I and Western blot. Three groups were studied: normoxia control group, hypoxia control group, Radix et Rhizome Rhodiolae treatment group. Results: The optimal condition of Radix et Rhizome Rhodiolae treatment were 24h and 10?g/mL. The protein levels of HIF-1?, HIF-1? and VEGF were elevated by hypoxia (P

Objective To investigate the association between arterial compliance and fundus oculi arteriosclerosis in elderly people. Methods A total of 73 elderly subjects,including 61 elderly patients with fundus oculi arteriosclerosis and 12 healthy volunteers were recruited into the study.Capacitive arterial compliance(C1)and oscillatory arterial compliance(C2)were measured by DO2020 Cardiovascular Profiling Instrument.Moreover,fundus photographs were measured using Canon figure fundus camera. Results There were significant differences in systolic blood pressure(SBP),diastolic blood pressure(DBP),mean artery pressure,pulse pressure,capacitive arterial compliance (C1),and oscillatory arterial compliance(C2)between patients with fundus oculi arteriosclerosis and healthy volunteers(all P<0.05).In multiple regression analysis,the grade of fundus oculi arteriosclerosis was significantly correlated with SBP,DBP,mean artery pressure and pulse pressure (r=0.357,0.261,0.342,0.280,all P<0.05).Moreover,there were significant correlations between the grade of fundus oculi arteriosclerosis and Cl(r=-0.281,P<:0.05),and C2(r=-0.308,P<0.01). Conclusions These findings underscore the efficacy of C1 and C2 in identifying patients with fundus oculi arteriosclerosis.

Objective To study the effect of infrared irradiation on the expression of epidermal growth factor EGF) and epidermal growth factor receptor (EGFR) in the gastric mucosa of rats with chronic atrophic gastritis CAG),and to explore its mechanism.Methods Forty healthy adult and clean Wistar male rats were randomized into a normal control group (N group),a model control group (M group) and an infrared group (I group) using a random number table.CAG was induced in the rats of the M and I groups by intra-gastric infusion of 2 ml of a mixture of 30％ alcohol and 2％ sodium salicylate once every day for 8 weeks.This was combined with compulsory running and irregular fasting as pathogenic factors.After the CAG model had been established,the rats in the I group were given infrared irradiation for 10 rain once every day for 20 days.Then all of the rats were sacrificed and the expression of EGF and EGFR was observed using immunohistochemistry.Results The positive staining scores for EGF and EGFR of the M group were 4.91±2.58 and 6.75±2.63,significantly higher than those of the N group (2.10±0.65 and 4.20±2.24 respectively).Those of the I group were 2.75±1.01 and 4.75± 1.66,significantly lower than those of the M group,though not significantly different from the N group's averages.Conclusion Infrared irradiation can inhibit over-expression of EGF and EGFR in the gastric mucosa of rats with chronic atrophic gastritis.This should protect the gastric mucosa and promote tissue repair and healing.

69 crabs were collected from Daxing, Gekui and Niukong townships of Lvchun county, Yunnan Province in 2006 and excysted metacercariae were only obtained from crabs of Niukong. The infection rate was 27.6% (8/29) with an average metacercaria number of 2.25 each crab. No encysted metacercariae were found. The excysted metacercariae were morphologically identified as Paragonimus proliferus.

Objectives To investigate the incidence of brain injuri in premature infants in ten hospitals of seven large cities in China sponsored by the Subspecialty Group of Neonatology of Pediatric Society, China Medical Association. Methods All premature infants with gestational age less than 37 weeks in ten hospitals were given routine cranial ultrasound within three days of birth, and then repeated every 3-7 days till the discharge from the hospital during January 2005 to August 2006. Results Incidence of intraventricular hemorrhage (IVH) and severe IVH were 10.8% (406/3 768) and 2.4% (92/3 768) with 22.6% (92/406) for grade 1, 54.7% (222/406) for grade 2, 17.2% (70/406) for grade 3 and 5.4% (22/406) for grade 4 in nine hospitals; incidence of periventricular leukomalacia (PVL) and cystic PVL were 2.3% (112/4 933) and 0.3% (16/4 933) with 85.7% (96/112) for grade 1, 12.5% (14/112) for grade 2, and 1.8% (2/112) for grade 3 including all ten hospitals, respectively. Risk factors associated with increased severity of IVH were vaginal delivery (OR = 1.874, 95% CI = 1.172 - 2.997, P < 0.01), perinatal asphyxia (OR = 1.598, 95% CI = 1.077 - 2.372, P < 0.05), mechanical ventilation (OR = 3.988, 95% CI= 2.448 -6.948, P< 0.01), and amniotic fluid contamination (OR = 2.192, 95% CI = 1.054 - 4.544, P< 0.05). Risk factors that might result in the development of cystic PVL were vaginal delivery (OR = 1.400, 95% CI = 1.186 - 1.652, P < 0.001) and mechanical ventilation (OR = 3.000, 95% CI = 1.015 - 8.864, P < 0.05). Conclusions These data reflect basically the prevalence of brain injuriy in premature infants in major cities of China. However, more than 60% of population lives in the rural area, further multicenter investigation including the rural area is expected to be undertaken in future.

Objective To compare the differences in the practical operation of exercise therapy courses for rehabilitation major students between workshop teaching method and traditional teaching method, and to explore the teaching model and process of workshop teaching method. Methods We im-plemented traditional teaching method in 94 rehabilitation major students in grade 2012 from Xuzhou Medical University, while 96 students in grade 2013 were taught by workshop method, which is based on specific cases, combined with multi-angle evaluation methods and various treatment protocols, with the opti-mal therapeutic method carried out after learning different practical operations and comparing their indica-tions. Then we conducted course satisfaction survey and skills operation evaluation on students from both grades after the course, and the t test was performed with the use of SPSS 19.0. Results The survey showed that the satisfaction score was significantly higher in grade 2013 students with workshop teaching method (79.07±10.49), compared with that in grade 2012 students with traditional teaching method (72.59±13.56), and the difference was statistically significant (P<0.05); as for the skills operation evaluation, the average score was significantly higher in students from 2013 grade (95.04±2.98), compared with that in students from 2012 grade (92.33±1.97), and the difference was statistically significant (P<0.05). Conclusions The work-shop teaching method can significantly improve students' satisfaction for the practical course of exercise therapy while improving their operation abilities.

OBJECTIVES: To investigate the otoprotective effects of mouse nerve growth factor (mNGF) in A/J mice. METHODS: The mice at postnatal day 7 (P7) were randomly separated into a mNGF treated group (mNGF group) and a distilled water (for injection) treated group (control group). The mNGF dissolved in distilled water or distilled water alone was given to the mice once every other day from P7 by intramuscular injection in the hips. The otoprotective effects of mNGF in A/J mice were observed in a time course manner. The thresholds of auditory-evoked brainstem response (ABR) were tested from the age of the 3rd to the 8th week. Sections of the inner ears were stained by hematoxylin and eosin, and spiral ganglion neurons (SGNs) were observed at the age of the 3rd, the 6th,and the 8th week. Counts of whole mount outer hair cells (OHCs) in the cochleae were made at the age of 8 weeks. Expression of apoptosis related genes was determined by quantitative real-time polymerase chain reaction and Western blotting. RESULTS: ABR thresholds of the mNGF group were significantly lower than those of the control group at the age of the 6th and the 8th week. Moreover, the mNGF preserved OHC and SGN in the mouse cochleae in this period. Further experiments showed that the expression of caspase genes (including caspase-3) was inhibited in the mouse inner ears in the mNGF group. CONCLUSION: The mNGF improves hearing in A/J mice by preserving SGN and OHC in the cochleae.
Animals ; Apoptosis ; Blotting, Western ; Brain Stem ; Cochlea ; Ear, Inner ; Eosine Yellowish-(YS) ; Hair Cells, Auditory, Outer ; Hearing* ; Hematoxylin ; Hip ; Injections, Intramuscular ; Mice* ; Nerve Growth Factor* ; Neurons ; Real-Time Polymerase Chain Reaction ; Spiral Ganglion ; Water

OBJECTIVE:To provide reference for improving therapeutic efficacy of methadone hydrochloride in maintenance treatment for drug addicts.METHODS:A questionnaire survey was conducted among drug addicts from outpatient department of drug maintenance treatment in 2 hospitals of Zhongshan City about their situation and demands.The data were statistically analyzed.RESULTS:A total of 101 questionnaires were distributed,and 88 effective questionnaires were recovered with effective recovery of 87.13％.64.77％ of the respondents had abused one or more drugs (narcotics) in the last year except for methadone hydrochloride;among them,the frequency of heroin abuse was the highest,which is 31.31％,followed by Qutong tablet,valium,meth,tramadol,etc.72.73％ of the respondents said they could stick to methadone hydrochloride maintenance treatment completely.The dosage of methadone was relatively dispersed,and the average dosage was 75.80 mL/time;the proportion of 71-80 mL/time was high,accounting for 26.14％.The average score of respondents' family support was (6.22 ± 1.88) and the average score of social support was(32.73 ± 6.94).The proportions of general,poor and very poor economic condition were 52.27％,22.73％,14.77％,respectively.The main demand of the top 5 respondents were to eliminate social discrimination (38.64％),employment (35.23％),psychological emotional support (35.23％),to reduce methadone hydrochloride dose (32.95％),assisting to reduce relapse (28.41％),respectively.CONCLUSIONS:The majority of the addicts who receive methadone hydrochloride maintenance treatment are male and middle-aged and young,their relative economic status is poor,and their family care and social support are unsatisfactory.The vast majority of them can adhere to methadone hydrochloride maintenance treatment completely or basically,most of which still abuse other drugs (narcotics) and have many demands.It is necessary to connect "biological-psychological-social" mode of medical treatment through social work intervention service mode,and conduct comprehensive intervention in order to better meet the relevant requirements and improve therapeutic efficacy of methadone hydrochloride maintenance treatment.

This study was aimed to investigate the effects of Bu-Yang Huan-Wu (BYHW) decoction to the learning and memory ability of APP/PS1 double transgenic mice through two behavior tests,in order to observe the Alzheimer's disease (AD) treatment effect of BYHW decoction.A total of 60 APP/PS1 double transgenic mice were randomly divided into five groups,which were the model group,the hydrochloride group,the high-,middle-,and low-dose BYHW decoction group,with ten rats in each group.The C57BL/6J mice were used as the control group.After 30 days of drug administration,all mice were subjected to behavior tests,including new object recognition experiment and step-through task.Western blot was used to detect changes of inflammatory factors,including IL-6 and TNF-α,in hippocampus of mice.The results showed that compared with the model group,the high-and middle-dose BYHW decoction can significantly decrease inflammatory factors of IL-6 and TNF-α expression in hippocampus of APP/PS1 mice.It can also obviously improve the learning and memory ability of APP/PS1 mice.It was concluded that BYHW decoction can significantly decrease the inflammatory factor expression in APP/PS 1 double transgenic AD model mice.It can obviously improve its learning and memory ability,which can be used in the treatment of AD.

With the outbreak of COVID-19 in the world, Beijing is one of the main areas of the imported cases. As a designated hospital for treatment in Beijing, our hospital set up a negative pressure isolation ward for suspected COVID-19 patients in an emergency, and we quickly organized nursing training, implemented classified management of hospitalized patients. During the whole process of setting up the new ward, all the related staff started working quickly, the logistics department provided goods timely, and the isolation facilities were set tightly. Owing to those, we completed the task of receiving and treating the suspected COVID-19 cases.