1.Improve Survival Prediction Using Principal Components of Gene Expression Data
Shen YI-JING ; Huang SHU-GUANG
Genomics, Proteomics & Bioinformatics 2006;4(2):110-119
The purpose of many microarray studies is to find the association between gene expression and sample characteristics such as treatment type or sample phenotype.There has been a surge of efforts developing different methods for delineating the association. Aside from the high dimensionality of microarray data, one well recognized challenge is the fact that genes could be complicatedly inter-related, thus making many statistical methods inappropriate to use directly on the expression data. Multivariate methods such as principal component analysis (PCA) and clustering are often used as a part of the effort to capture the gene correlation, and the derived components or clusters are used to describe the association between gene expression and sample phenotype. We propose a method for patient population dichotomization using maximally selected test statistics in combination with the PCA method, which shows favorable results. The proposed method is compared with a currently well-recognized method.
2.Study on Rehabilitating Effect of Acupuncture plus Kinetotherapy for Early Hemiplegia
Huamei ZHANG ; Chunhuan WU ; Zhenbang SONG ; Guang ZHAO ; Xuehua SHEN ; Guoqi HUANG
Journal of Acupuncture and Tuina Science 2006;4(6):342-346
To investigate the rehabilitating effect of acupuncture plus kinetotherapy for early hemiplegia due to cerebral apoplexy. Methods:Fifty cases of apoplectic hemiplegia were treated by acupuncture plus kinetotherapy and were compared with another fifty cases treated by single medications,in the therapeutic effect and for follow-up observation. Results:After the treatment for one month on average,the remarkable effective rate was 82% in the rehabilitation group and 54% in the control group,in a significant difference (P<0.05). After the treatment,the scores in the motor function of the limbs and daily life ability were obviously increased in the rehabilitation group,and there was a significant difference in comparison with the control group (P<0.05). Moreover,there was a good regulatory effect on blood rheology and blood lipid in the rehabilitation group. Conclusion:A combination of acupuncture and kinetotherapy has a better effect on apoplectic hemiplegia than single medications.
3.Pathological ultrastructure changes of lung tissue in diabetic rat and the preventive effect of rosiglitazone intervention
Weixin MU ; Yaxin SHEN ; Hong ZHOU ; Jing HUANG ; Mian WANG ; Guang LIU
Clinical Medicine of China 2011;27(7):700-702
Objective To observe the pathological infrastructure changes of lung tissue in diabetic rat with pulmonary fibrosis and the preventive effect of rosiglitazone intervention. Methods The experimental type 2 diabetic rats were yielded by high-sugar, high fat diet plus intraperitoneal injecting streptozotocin (STZ). The pathological infrastructure changes of lung tissue were observed by transmission electron microscopy in the control, diabetes mellitus group and rosiglitazone treatment group respectively, and the hydroxyproline contentswere determined simultaneously. Results We observed accumulation of collagen fibers and extracellular matrix in the lung tissue of simple diabetic rat, which indicated pulmonary fibrosis. The hydroxyproline contents were significantly higher in diatetes mellitus group when compared to the control at 12 weeks[ 0. 77 ± 0. 03μg/(mg·prot) vs.0.63 ±0.03 μg/(mg·prot)] and 20 weeks [0.93 ±0. 10 μg/(mg·prot) vs.0.87 ±0.10μg/ (mg·prot) ]. (Ps < 0.05) , but the rosiglitazone intervention significantly reduced the hydroxyproline 3contents in diabetes mellitus rats [0.85 ±0.08 μg/(mg·prot) vs.0.87 ±0. 10 μg/(mg·prot) ,P<0.05].Conclusion Pulmonary fibrosis occurred in diabetic rats lung tissue,while rosiglitazone can alleviate it.
5.Evaluation of Risk Factors for Arytenoid Dislocation after Endotracheal Intubation:a Retrospective Case-control Study
Shen LE ; Wang WU-TAO ; Yu XUE-RONG ; Zhang XIU-HUA ; Huang YU-GUANG
Chinese Medical Sciences Journal 2014;(4):221-224
Objective To investigate the risk factors for postoperative arytenoid dislocation.
Methods From September 2003 to August 2013, the records of 16 patients with a history of postoperative arytenoid dislocation were reviewed. Patients matched in terms of date and type of procedures were chosen as the controls (n=16). Recorded data for all patients were demographics, smoking status, alcoholic status, preoperative physical status, airway evaluation, intubation procedures, preoperative laboratory test results, anesthetic consumption and intensive care unit stay. For arytenoid dislocation cases, we further analyzed the incidences of the left and right arytenoid dislocation, and the outcomes of surgical repair and conservative treatment. Categorical variables were presented as frequencies and percentages, and were compared using the chi-squared test. Continuous variables were expressed as means±SD and compared using the Student’s unpaired t-test. To determine the predictors of arytenoid dislocation, a logistic regression model was used for multivariate analysis.
Results Sixteen patients with postoperative arytenoid dislocation were enrolled, with a median age of 52 years. Most postoperative arytenoid dislocation patients (15/16, 93.75%) received surgical repair, except one patient who recovered after conservative treatment. None of the postoperative arytenoid dislocation patients were smokers. Red blood cell (P=0.044) and hemoglobin (P=0.031) levels were significantly lower among arytenoid dislocation cases compared with the controls.
Conclusions Non-smoking and anemic patients may be susceptible to postoperative arytenoid dislocation. However, neither of them was independent risk factor for postoperative arytenoid dislocation.
6.Research wilt disease of Salvia miltiorrhiza and its pathogen.
Li YANG ; Zuo-Qing MIAO ; Guang YANG ; Ai-Juan SHAO ; Lu-Qi HUANG ; Ye SHEN ; Xue WANG ; Mei-Lan CHEN
China Journal of Chinese Materia Medica 2013;38(23):4040-4043
Salvia miltiorrhiza is a highly valued traditional chinese medicine for the treatment of atherosclerosis-related disorders in china, such as cardiovascular and cerebrovascular diseases in China. The wilt disease is serious in the culture of S. miltiorrhiza. Wilt disease cause biomass of plant shoots and roots is lessened, active components are decreased. To solve these problems, we research the pathogen causing wilt disease of S. miltiorrhiza. The suspected pathogen is identified by morphology and etiological test. The identification was further confirmed by alignment the sequences of internal transcribed spacer (ITS) amplified by PCR. Our result show the wilt disease of S. miltiorrhiza mostly occurred in July and August, which is hot and wetter. The wilt disease rate of S. miltiorrhiza continuous cropping for one year in S. miltiorrhiz stubble is 10%, but the wilt disease rate of S. miltiorrhiza continuous cropping for three years in S. miltiorrhiz stubble is 60%-70%. The root rot of S. miltiorrhiz caused by the wilt disease, so the wilt disease was mistaken for the rot root in production. Morphological characteristics show the pathogen is Fusarium oxysporum. The sequence of ITS wes determined and found by BLAST shared 99% identity to that of F. oxysporum f. sp. cucumerinum. So it comes to the conclusion that the causing agent of wilt disease on S. miltiorrhiza belongs to F. oxysporum.
DNA, Intergenic
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genetics
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Fusarium
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genetics
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isolation & purification
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physiology
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Plant Diseases
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microbiology
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Polymerase Chain Reaction
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Salvia miltiorrhiza
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microbiology
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Seasons
8.Role of Postoperative Multimodal Analgesia in Abdominal and Pelvic Enhanced Recovery after Surgery.
Acta Academiae Medicinae Sinicae 2016;38(4):458-463
Enhanced recovery after surgery (ERAS) is to achieve early recovery for patients undergoing major surgery through multimodal perioperative care pathways. Treatment of postoperative pain is of great importance for ERAS. From 2012 to now,the ERAS Society has published seven international guidelines for the abdominal or pelvic surgeries. Each of these guidelines recommended a standardized postoperative multimodal analgesia protocol to improve pain relief and postoperative recovery. Upon these guidelines,thoracic epidural analgesia should be the primary choice for postoperative analgesia of either abdominal and pelvic surgeries. Meanwhile,postoperative multimodal analgesia should contain multiple methods and drugs. In this review,we ellucidate the recommendations on postoperative multimodal analgesia from these seven ERAS guidelines,so as to facilitate the implementation of standardized postoperative multimodal analgesia.
Abdomen
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surgery
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Analgesia
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methods
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Humans
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Pain, Postoperative
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therapy
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Pelvis
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surgery
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Postoperative Period
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Practice Guidelines as Topic
9.Effect of visual perception training combined with total nutrition meal sequential therapy on myopic amblyopia in preschool children
Chen HONG ; Shen PING-YU ; Cheng KAI-YAO ; Lian SHU-GUANG ; Yu JING ; Jin HUANG-LIN ; Kang ZE-LIN
International Eye Science 2017;17(12):2238-2241
·AIM: To observe the therapeutic effect of visual perception training combined with total nutrition meal sequential therapy in the treatment of myopic amblyopia.·METHODS:Totally 73 children ( 135 eyes ) with myopic amblyopia were divided into control group ( 36 cases, 67 eyes) and treatment group (37 cases, 68 eyes) according to random number table. The control group were treated with traditional spectaculars and grating covering combined with fine eyesight training;the treatment group were treated with visual perception training combined with total nutrient meal sequential therapy. The visual acuity, diopter and average diopter of two groups were compared before and after treatment at 3, 6mo and 1a. The curative effect of two groups of children was compared after 1a treatment. And the adverse reactions were recorded in two groups during the treatment period. The recurrence rate of amblyopia in 1a follow-up was compared between two groups.·RESULTS: The difference of visual acuity between two groups was not significant at 3mo (P>0. 05). The visual acuity of the treatment group was significantly higher than that of the control group at 6mo and 1a (P<0. 05). There was no significant difference in diopter between the two groups after 3, 6mo and 1a (P>0. 05), but the average annual refractive changes in the treatment group were significantly lower than that in the control group ( P<0. 05). The basic cure rate and total effective rate of the treatment group were significantly higher than that of the control group (P<0. 05). There were no severe adverse reactions occurred between two groups during the treatment period. The recurrence rate of amblyopia in the treatment group was significantly lower than that in the control group (P<0. 05) after 1a follow-up.· CONCLUSION: Visual perception training combined with total nutrition meal sequential therapy in the treatment of myopic amblyopia in preschool children can significantly improve patients' visual acuity, reduce the average annual diopter changes, improve the therapeutic effect, reduce the recurrence rate of amblyopia.
10.Positional cloning of a novel allele of zebrafish cloche mutant.
Ning MA ; Zhong-jun HUO ; Guang YAN ; Hong-hui HUANG ; Shen-qiu LUO ; Wen-qing ZHANG
Journal of Southern Medical University 2010;30(3):458-462
OBJECTIVETo perform the genetic identification of cloche(172) mutant zebrafish.
METHODSThe chemical mutagen N-ethyl-N-nitrosourea (ENU) was used to treat the AB stain male fish. Large-scale forward genetic screening was carried out to search for lyC-deficient zebrafish mutant by WISH. The morphology changes of the embryos at 3 days postfertilization (3dpf) stage were observed and the cloche(172) gene was identified by mapping and complementation test.
RESULTSWe selected 4 lyC-deficient zebrafish by WISH. cloche(172) mutant showed morphological changes similar to cloche mutant in 3dpf stage. One fourth of the embryos showed cloche phenotype as found in complementation test, and the cloche(172) gene was mapped on the telomere of zebrafish 13 chromosome where cloche gene was located. Numerous red blood cells were observed in the cloche(172) mutant, while only a few cells were found in the cloche mutant in the tail region by o-dianisdine staining.
CONCLUSIONcloche(172) gene which is responsible for the phenotype of cloche mutant may be a novel point mutation allele of the cloche mutant.
Alleles ; Animals ; Chromosome Mapping ; Cloning, Molecular ; Embryo, Nonmammalian ; embryology ; metabolism ; Ethylnitrosourea ; toxicity ; Genetic Complementation Test ; Male ; Muramidase ; genetics ; Mutation ; Zebrafish ; embryology ; genetics ; Zebrafish Proteins ; genetics