A preliminary study of a deep learning-assisted diagnostic system with an artificial intelligence for detection of diabetic retinopathy / 国际眼科杂志(Guoji Yanke Zazhi)

·AIM: To evaluate a deep learning - assisted diagnostic system with an artificial intelligence for the detection of diabetic retinopathy (DR). ·METHODS:A total of 186 patients (372 eyes) with diabetes were recruited from January to July 2017. Discrepancies between manual grades and artificial intelligence results were sent to a reading center for arbitration. The sensitivity and specificity in the detection of DR were determined by comparison with artificial intelligence diagnostic system and experts human grading. ·RESULTS:Based on manual grades, the results as follows:non DR (NDR) in 42 eyes (11.3%), 330 eyes (88.7%) in different stages of DR. Among 330 DR eyes, there were mild non proliferative DR (NPDR) in 62 eyes (16.7%), moderate NPDR in 55 eyes (14.8%), severe NPDR in 155 eyes (41.7%), and proliferative DR (PDR) in 58 eyes (15. 6%). Based on artificial intelligence diagnostic system, the results were as follows: NDR in 38 eyes (10.2%),PDR in 44 eyes (11.8%), others were NPDR. The sensitivity and specificity of artificial intelligence diagnostic system, compared with human expert grading, for the detection of any DR were 0.82 and 0.91, and the kappa value was 0.77 (x2=20.39, P<0.05). ·CONCLUSION:This study shows that a deep learning-assisted diagnostic system with an artificial intelligence for grading diabetic retinopathy is a reliable alternative to diabetic retinopathy assessment, thus the use of this system may be a valuable tool in evaluating the DR.

The research on the clinical effect of clustered NIV in the treatment for patients with AECOPD complicated with HE / 中国医学装备

Objective: To observe the clinical effect of clustered non-invasive mechanical ventilation strategy in the treatment for patients with acute exacerbation of chronic obstructive pulmonary disease(AECOPD) complicated with hypercapnia encephalopathy(HE) so as to evaluate the safety and effectiveness of the scheme. Methods: According to the inclusion criteria, 164 patients with AECOPD complicated with HE were divided into the observation group(74 cases) and the control group (90 cases) as the random method. The patients of observation group were treated with clustered non-invasive ventilation(NIV), and the patients of control group were treated with invasive mechanical ventilation(IMV). The blood gas indexes of the two groups before and after 2 hours of treatment were observed, and the improved situations of the two groups were evaluated by KPS score. Besides, the hospitalization time and the mechanical ventilation time of the two groups were observed, and the incidence of adverse events and case fatality rate of 1 year in the two groups were counted and analyzed, and the reliability of the clustered NIV scheme was further evaluated. Results: Before treatment, there were no significant differences in pH, oxygenation index(PaO2/FiO2), partial pressure of carbon dioxide in artery (PaCO2) level and KPS score between the two groups(t=1.021, t=1.301, t=0.985, t=1.017, P>0.05). Although these indicators were obviously improved after these patients of two groups were treated, the differences of them between before and after treatment were no significant(t=2.017, t=1.825, t=1.163, t=1.520, P>0.05). On the other hand, the differences of time of mechanical ventilation, the hospitalization time and the times of intubation between the observation group and the control group were significant(t=7.018, t=8.523, t=7.954, P<0.05). In the observation group, there were 12 cases were failure, and 4 patients died in hospital, while the number of died in hospital were 18 cases in control group, and the difference of the number of died in hospital between the two groups was significant(x2=5.631, P<0.05). Besides, the difference of complication between the two groups was significant(x2=7.014, P<0.05). And the difference of case fatality rate of 1 year between the two groups was no significant. Conclusion: It is safe and effective for patients with AECOPD complicated with HE to implement cluster noninvasive mechanical ventilation strategy on the basis of meeting the condition of non-invasive mechanical ventilation. And it has clinical application value.

Applications and approved projectsof general program, young scientist fund and fund for less developedregion of national natural science funds in discipline of Chinese materia medica, NSFC in 2012 / 中国中药杂志

The applications accepted and approved by general program, young scientist fund and fund for less developed region of national natural science funds in the discipline of Chinese materia medica, NSFC in 2012 have been introduced. The research contents of the funded projects in the popular research areas have been summarized and the problems in the applications have been analyzed to give a reference to the scientists in the field of Chinese materia medica.

National Natural Science Foundation of China promotes the development of Chinese medicine in China--an analysis of Chinese medicine project funded by National Natural Science Foundation of China in the last decade / 中国中西医结合杂志

In recent years, projects funded by the Division V III of Health Sciences of the National Natural Science Foundation of China (NSFC) increased steadily, which enhanced the process of modernization of Chinese medicine (CM). We analyzed CM projects funded by NSFC during 2003 -2012, which aimed to provide reference to experts in the CM field.

Effects of Quyu Xiaoban Capsule on vascular endothelial function in patients with atherosclerosis / 中国结合医学杂志

<p><b>OBJECTIVE</b>To evaluate the therapeutic effects of Quyu Xiaoban Capsule (QYXBC) on endothelial dependent vascular relaxation (EDVR) function in patients with atherosclerosis (AS) with ultrasonic technique.</p><p><b>METHODS</b>Tested were the endothelial function and blood lipids of 42 patients with AS in the treated group and 30 healthy volunteers in the control group. And re-examination of these parameters was carried out on the AS patients after they had been treated with QYXBC for 10 months.</p><p><b>RESULTS</b>Before treatment, the reactive hyperemia induced changes in artery diameter in the treated group was significantly lower than that in the control group (P < 0.01), while insignificant difference was found between the two groups in response to nitroglycerin. In the treated group after treatment, with D%-R improved significantly (P < 0.01), total cholesterol (TC), triglyceride (TG) and low-density lipoprotein cholesterol (LDL-C) decreased by 16.3%, 5.6%, 10.2% respectively and high-density lipoprotein cholesterol (HDL-C) increased by 7.5%. EDVR was correlated negatively with the serum TC, LDL-C concentrations and the baseline brachial diameter (D(0)) (r = -0.41, -0.66, -0.59, respectively, all P < 0.01), but correlated positively with HDL-C (r = 0.62, P < 0.05). The ameliorative extent of EDVR was correlated positively to the decreased magnitude of TC and LDL-C concentrations (r = 0.67, 0.59, both P < 0.01).</p><p><b>CONCLUSION</b>QYXBC can lower the level of blood lipids and improve significantly EDVR function.</p>

Clinical study of acoustic densitometry technique in detecting atherosclerotic plaque / 中国结合医学杂志

<p><b>OBJECTIVE</b>To investigate the effect of Quyu Xiaoban Capsule (QYXB) on the regressive treatment of atherosclerosis (AS) with acoustic densitometry (AD) technique.</p><p><b>METHODS</b>Eighty patients with AS were randomly divided into two groups, trial group was treated with QYXB and conventional medicine, and control group was treated with conventional medicine alone. Normal arterial wall and different types of atherosclerotic plaques were detected with AD technique before treatment and 10 months later.</p><p><b>RESULTS</b>The corrected averages in intimal echo intensity (AIIc%) were elevated in both groups but without significant difference, AIIc% of fatty plaques were increased in both groups and the value after treatment was significantly higher than that of pre-treatment in the trial group (68.12 +/- 5.54 vs 61.43 +/- 5.37, P < 0.05). The increment rate of AIIc% in trial group was significantly higher than that in control group (10.9 +/- 5.1% vs 2.5 +/- 5.5%, P < 0.05).</p><p><b>CONCLUSION</b>QYXB can stabilize the atherosclerotic plaque by increasing its acoustic density. Acoustic densitometry technique can differentiate the different histological plaques and monitor the histological changes of plaques during treatment.</p>

Clinical study on effect of quyu xiaoban capsule on regression of atherosclerosis / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To study the effect of Quyu Xiaoban capsule (QXC) on regression and stabilization of atherosclerotic plaque with high-frequency ultrasound technique.</p><p><b>METHODS</b>Eighty patients with atherosclerosis (AS) were randomly divided into the treated group and the control group, level of blood lipids was measured, and intima-media thickness (IMT) and corrected value of image average echo intensity (AIIc%) were determined by ultrasound technique at the beginning of experiment and after being treated for six months.</p><p><b>RESULTS</b>The levels of total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) were significantly decreased in the treated group after treatment (68.12 +/- 5.54 vs 61.43 +/- 5.37, P<0.05). The AIIc% of fatty atherosclerotic plaque was significantly increased after treatment (68.12 +/- 5.54 vs 61.43 +/- 5.37), and the change rate of AIIc% in the treated group was significantly different to that in the control group (10.9 +/- 5.1% vs 2.5 +/- 5.5%, P < 0.05).</p><p><b>CONCLUSION</b>QXC can significantly lower the blood lipids level, delay the progress and enhance the stability of atherosclerotic plaque.</p>