The principle and structure of the near-IR laser spectrum noninvasive blood glucose detection system are introduced in the paper. To meet the detection demand of the little DC current signal in the system,the current measure methods are analyzed. The hardware and software structure are discussed in the end.

Complications that follow ischemic stroke are common,frequency ranging from 28% to 95%.It may either directly lead to death or prevent optimal recovery.54% of deaths after ischemic stroke are attributed to medical complications.Most complications occur during the first week,and stroke severity is the most important risk factor.The common serious medical complications are chest or urinary tract infection,deep venous thrombosis,pulmonary embolism,cardiac events,gastrointestinal bleeding,hyperglycemia,pressure sores.Falls,shoulder pain and depression are also common complications.Most of medical complications are preventable or treatable to some extent if recognized,so preventive strategies and appropriate treatment should be employed as early as possible.Prevention,early recognition,and management complications could improve short-term and long-term prognoses after ischemic stroke.

Brain tumor stem cells (BTSCs) play a key role in tumorigenesis and tumor development.There are a group of special markers in the surface of brain tumor stem cells,which can sorts stem cells,precursor cells and cancer stem cells.In recent years,the studies of CD133,Nestin,high-mobility group A1,A2B5 have made some breakthroughs.

Asian Continental Ancestry Group ; Databases as Topic ; Humans ; Injury Severity Score ; Maxillofacial Injuries

Humans ; Hypoxia-Ischemia, Brain ; diagnosis ; therapy ; Infant, Newborn ; Time Factors

Objective To determine whether re-expansion of the collapsed lung with room air can attenuate oxidative stress injury following one-lung ventilation during esophageal cancer resection. Methods Twenty-four ASA Ⅰ or Ⅱ patients aged 40-60 yr weighing 44-65 kg undergoing esophageal cancer resection were randomly divided into 2 groups (n=12 each) : room air group and pure oxygen group. Anesthesia was induced with midazolam, fentanyl, etomidate and atracurium and maintained with propofol and atracurium infusion and intermittent iv boluses of fentanyl. Right or left side double-lumen catheter (Fr 35, 37, 39) was inserted in each patient. Correct placement was verified by fiber-optic bronchoscopy. The patients were mechanically ventilated ( V_T 7-10 ml/kg, RR 12-16 bpm, FiO_2 1.0 during one-lung ventilation). P_(ET)CO_2 was maintained at 35-45 mm Hg. SpO_2 was maintained at 95%-100% during one-lung ventilation. Blood samples were collected at the beginning of one-lung ventilation (T_1 ), immediately before re-expansion of the collapsed lung (T_2) and 30 rain after re-expansion of the collapsed lung (T_3) for determination of serum levels of MDA, SOD and plasma level of protein carbonyl. Arterial blood samples were obtained at 2 h after operation for blood gas analysis. Results The plasma protein carbonyl level and serum MDA level were significantly increased while the serum SOD level was significantly decreased at T_3 as compared with thost at T_1 and T_2 in pure oxygen group. No significant change in serum levels of MDA, SOD and plasma level of protein carbonyl occurred during operation in room air group. The oxygenation index was significantly higher at 2 h after operation in room air group than in pure oxygen group. Conclusion Re-expansion of the collapsed lung with room air can attenuate the oxidative stress injury following one-lung ventilation during esophageal cancer resection.

Objective:To observe the influence of Naoxintong on expression of glucose-regulated protein 78(GRP78) and GRP94 in the striatum of rats with focal cerebral ischemic injury,so as to investigate their possible protective mechanism on cerebral ischemic injury.Methods:Ninety rats were equally randomized into 3 groups(n=30): sham operated group,ischemic group(Focal transient cerebral ischemia model was established with intraluminal occlusion of left middle cerebral artery) and Naoxintong pre-treated group(Treated with Naoxintong 5 d before ischemic injury).The expression of GRP78,GRP94 in rats striatum was detected by histological method,immunohistochemistry staining and semiquantitative RT-PCR at the different time points(6,12 and 24 h after ischemic treatment).Results:The focal transient cerebral ischemia model was successfully established in rats.Histological results showed that the degree of focal cerebral ischemic injury in Naoxintong pre-treated group was significantly lower than that in ischemic group.Immunohistochemistry staining and RT-PCR results illustrated that the expression of GRP78 and GRP94 in ischemic group was lower than that in sham operated group at each time point after ischemic treatment((P

Objective To optimize the extracting conditions of Anchuan Keli. Method Six crude drugs, including Ephedra herb and so on, with the ephedrina hydrochloridum content as the index, extracting times, water volume and extracting time were screened by orthogonal test. Two crude drugs, including Sophora flavescens and so on, with matrine and ammothamnine content as the indexes, alcohol concentration, extracting times, alcohol volume and extracting time were screened by orthogonal test. Result The optimal extracting condition of six crude drugs including Ephedra herb was heat reflux and extracting 2 times (the first time 854 mL, the second time 732 mL), 2 hours for each time using water. The optimal extracting condition of two crude drugs include Sophora flavescens was heat reflux and extracting 2 times (the first time 288 mL, the second time 240 mL), 2 hours for each time using 80% alcohol. Conclusion The extracting technology selected is reasonable, practical and controllable.

Objective To investigate the effect of Yiqi Huoxue prescriptions on prevention of neointima hyperplasia after carotid artery vascular injury in rats.Methods Ninty male SD rats were randomly divided into 6 groups:the model group,the aspirin group,the low-dose Yiqi Huoxue group,the mid-dose Yiqi Huoxue group and the high-dose Yiqi Huoxue group.All of the rats were fed with hypercholesterolemic diet for 30 days,then the 2.0F balloon catheter injury was perfomed through the right femoral artery into the left common carotid artery of rats,the balloon was inflated and deflated 3 times.The rats was given drugs from 1 d before injury and to 5 d,14 d,28 d after injury.Around 6 rats from each group were euthanized by exsanguination at appropriate time point.The injuried left common carotid arteries were carefully removed and harvested for HE staining.Results The neointima hyperplasia was faint at 5 d after the operation.Morphological analysis demonstrated that there were markedly differences in the area of neointima hyperplasia at 14 d or 28 d,the average thickness of neointima hyperplasia,the surplus area of lumen/the total area of lumen between the high-dose Yiqi Huoxue group and the model group(P

Objective To analyze the imaging features of endometrial carcinoma derived from multimodal MRI.Methods MRI scan was performed in 45 patients with biopsy-proved endometrial carcinoma,including conventional MRI,diffusion weighted imaging(DWI),dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI),and time-signal curve (TIC).Results The diagnosis rate of DCE-MRI combined with DWI was 93.3%, and that of conventional MRI was 77.8%.Tumor differentiation was negatively correlated with ADC and rADC, and significant difference was found between G2 and G3 as well as G1 and G3 (both P<0.05).There was no significant difference between G1 and G2 (P>0.05).Of the 45 cases, 43 showed TIC type Ⅰ and type Ⅱ, and 2 showed TIC type Ⅲ, while the normal myometrium was mainly type Ⅲ curve.The difference of signal intensity of each phase (D), and enhancement rate (ER) of the lesions were lower than those of the normal myometrium.The difference was statistically significant at the phase of >30 s(P<0.05),the peak time of the former was (50±10) s.Conclusion Multimodal MRI is of great value in preoperative staging and grading of endometrial carcinoma.