Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 97
Filter
1.
Chinese Journal of Practical Nursing ; (36): 1212-1216, 2023.
Article in Chinese | WPRIM | ID: wpr-990320

ABSTRACT

Objective:To investigate the influence of the upright position delivery in the second stage of labour on delivery outcomes in primiparas, so as to provide reference for the formation of systematic delivery management strategies.Methods:This study was a cohort study, 454 primiparas who delivered in Beijing Hospital from January 2022 to December 2022 were selected. In the second stage of labour, according to the willingness of the primiparas, they were divided into the upright group(delivered in upright position, 222 cases) and the supine group(delivered in supine position, 232 cases). The duration of the second stage of labour, perineal injury, vaginal midwifery, neonatal asphyxia, and the effect of pharmacological analgesia on delivery outcomes in two groups of primiparas were observed and compared.Results:The duration of the second stage of labour was 30 (22, 50) min in the upright group, which was shorter than 48 (30, 80) min in the supine group, with statistically significant difference ( Z=-5.90, P < 0.05). The rate of lateral episiotomy was 17.6% (39/222) in the upright group, which was lower than 28.0% (65/232) in the supine group, with statistically significant difference ( χ2=7.02, P <0.05). There was no significant difference in the incidence of second degree perineal injury, vaginal midwifery, shoulder difficulty rate and neonatal asphyxia in the two groups ( P>0.05). The incidence of vaginal midwifery was 10.9% (14/129) and 2.2% (2/93) respectively in the upright group with pharmacological analgesia and non pharmacological analgesia, and the difference was statistically significant (Fisher's exact test, P<0.05). The duration of the second stage of labour was 53 (32, 85), 41 (27, 59) min in the supine group with pharmacological analgesia and non pharmacological analgesia, and the difference was statistically significant ( Z=-3.28, P<0.05). Conclusions:The adoption of upright position in the second stage of labour for primiparas can shorten the duration of the second stage, and reduce the rate of lateral episiotomy which can optimize the delivery outcome. For primiparas with pharmacological analgesia, it is recommended to use an upright position for delivery if conditions permit.

2.
China Journal of Chinese Materia Medica ; (24): 1731-1738, 2023.
Article in Chinese | WPRIM | ID: wpr-981390

ABSTRACT

Diabetic ulcer(DU) is one of the common complications of diabetes often occurring in the peripheral blood vessels of lower limbs or feet with a certain degree of damage. It has high morbidity and mortality, a long treatment cycle, and high cost. DU is often clinically manifested as skin ulcers or infections in the lower limbs or feet. In severe cases, it can ulcerate to the surface of tendons, bones or joint capsules, and even bone marrow. Without timely and correct treatment, most of the patients will have ulceration and blackening of the extremities. These patients will not be able to preserve the affected limbs through conservative treatment, and amputation must be performed. The etiology and pathogenesis of DU patients with the above condition are complex, which involves blood circulation interruption of DU wound, poor nutrition supply, and failure in discharge of metabolic waste. Relevant studies have also confirmed that promoting DU wound angiogenesis and restoring blood supply can effectively delay the occurrence and development of wound ulcers and provide nutritional support for wound healing, which is of great significance in the treatment of DU. There are many factors related to angiogenesis, including pro-angiogenic factors and anti-angiogenic factors. The dynamic balance between them plays a key role in angiogenesis. Meanwhile, previous studies have also confirmed that traditional Chinese medicine can enhance pro-angiogenic factors and down-regulate anti-angiogenic factors to promote angiogenesis. In addition, many experts and scholars have proposed that traditional Chinese medicine regulation of DU wound angiogenesis in the treatment of DU has broad prospects. Therefore, by consulting a large number of studies available, this paper expounded on the role of angiogenesis in DU wound and summarized the research advance in traditional Chinese medicine intervention in promoting the expression of angiogenic factors [vascular endothelial growth factor(VEGF), fibroblast growth factor(FGF), and angiopoietin(Ang)] which played a major role in promoting wound angiogenesis in the treatment of DU to provide ideas for further research and new methods for clinical treatment of DU.


Subject(s)
Humans , Medicine, Chinese Traditional , Ulcer , Vascular Endothelial Growth Factor A/metabolism , Diabetes Complications/drug therapy , Wound Healing/physiology , Diabetes Mellitus
3.
China Journal of Chinese Materia Medica ; (24): 1724-1730, 2023.
Article in Chinese | WPRIM | ID: wpr-981389

ABSTRACT

Diabetic ulcer(DU) is a chronic and refractory ulcer which often occurs in the foot or lower limbs. It is a diabetic complication with high morbidity and mortality. The pathogenesis of DU is complex, and the therapies(such as debridement, flap transplantation, and application of antibiotics) are also complex and have long cycles. DU patients suffer from great economic and psychological pressure while enduring pain. Therefore, it is particularly important to promote rapid wound healing, reduce disability and mortality, protect limb function, and improve the quality of life of DU patients. By reviewing the relevant literatures, we have found that autophagy can remove DU wound pathogens, reduce wound inflammation, and accelerate ulcer wound healing and tissue repair. The main autophagy-related factors microtubule-binding light chain protein 3(LC3), autophagy-specific gene Beclin-1, and ubiquitin-binding protein p62 mediate autophagy. The traditional Chinese medicine(TCM) treatment of DU mitigates clinical symptoms, accelerates ulcer wound healing, reduces ulcer recurrence, and delays further deterioration of DU. Furthermore, under the guidance of syndrome differentiation and treatment and the overall concept, TCM treatment harmonizes yin and yang, ameliorates TCM syndrome, and treats underlying diseases, thereby curing DU from the root. Therefore, this article reviews the role of autophagy and major related factors LC3, Beclin-1, and p62 in the healing of DU wounds and the intervention of TCM, aiming to provide reference for the clinical treatment of DU wounds and subsequent in-depth studies.


Subject(s)
Humans , Ulcer/therapy , Medicine, Chinese Traditional , Beclin-1 , Quality of Life , Wound Healing , Diabetes Complications , Autophagy , Diabetic Foot/drug therapy , Diabetes Mellitus/genetics
4.
International Eye Science ; (12): 1235-1241, 2023.
Article in Chinese | WPRIM | ID: wpr-978612

ABSTRACT

Fundus autofluorescence(FAF)imaging is based on the fluorescence excited by the endogenous fluorophores in the retinal pigment epithelium and choroid, mainly referring to lipofuscin(LF)and melanin. The non-invasive examination method can imply the function of retinal pigment epithelium by observing the spatial distribution of LF or melanin. This technique has unique advantages in the diagnosis and differentiation of age-related macular degeneration(ARMD). This guideline is to standardize and interpret the application of FAF in different stages and classifications of ARMD.

5.
Chinese Journal of Biologicals ; (12): 1138-1142, 2023.
Article in Chinese | WPRIM | ID: wpr-996607

ABSTRACT

@#Clostridiodes difficile(C.difficile)is the most common causative agent of antibiotic-associated diarrhea(ADD)in the world. In recent years,with the emergence of highly resistant and virulent strains,the outbreaks of C.difficile infection have occurred around the world. The incidence,recurrence and mortality of C.difficile infection are on the rise worldwide,and bring great challenges to clinical treatment. Pathogenic strains mainly produce two homologous glycosylation toxins A and B,which can cause symptoms ranging from diarrhea to highly lethal toxic megacolon. In view of the malignant consequences caused by C.difficile infection,disease prevention is still an important way worth exploring. Until now there is no approved vaccine against C.difficile. Therefore,this review assessed the status and challenge of clinical trials of vaccine research for C.difficile.

6.
International Eye Science ; (12): 1634-1637, 2022.
Article in Chinese | WPRIM | ID: wpr-942831

ABSTRACT

Diabetes retinopathy(DR)may continue to develop even if blood sugar is well controlled, which indicates that previous hyperglycemia will lead to long-term harmful vascular dysfunction, and this phenomenon is defined as “metabolic memory” of diabetes retinopathy. Because the onset of DR is insidious, clinical symptomatic treatment is mainly used. Effective means of early diagnosis, accurate treatment and prognosis are lacking and new diagnosis and treatment ideas need to be developed urgently. In recent years, many new studies have shown that epigenetic modification is involved in the pathogenesis of DR “metabolic memory” in DNA methylation, histone post-translational modification and microRNA(microRNAs,miRNAs)regulation, which provides a direction and strategy for the exploration of DR molecular mechanism. In this review, we discussed the role of epigenetic modification in the pathogenesis of DR and analyzed the challenges and prospects of its application in the treatment of DR, with a view to provide a reference for early diagnosis and treatment of DR in the future.

7.
Chinese Journal of Internal Medicine ; (12): 548-551, 2022.
Article in Chinese | WPRIM | ID: wpr-933468

ABSTRACT

Objective:To explore the medium-long term efficacy of transjugular intrahepatic portosystemic shunt (TIPS) for gastrointestinal hemorrhage in patients with idiopathic non-cirrhotic portal hypertension (INCPH).Methods:From March 2013 to July 2018, clinical data of 13 INCPH patients, including 5 males, 8 females,with gastrointestinal hemorrhage were retrospectively analyzed, who were diagnosed at the First Affiliated Hospital of Zhengzhou University, Anyang Fifth People′ s Hospital and Yuncheng Central Hospital. All patients received TIPS treatment. The general information, postoperative survival rate, the incidence of rebleeding, shunt dysfunction rate, and incidence of hepatic encephalopathy were analyzed.Results:All 13 patients with INCPH completed TIPS successfully with an average age of 45±8 (33 to 59) years. The hepatic venous pressure gradient (HVPG) decreased from 20.0-26.0 (22.6±1.9) mmHg before procedure to 8.0-14.0 (9.4±3.2) mmHg after. The median follow-up time was 44±7 (31 to 53) months. One patient died of liver failure 27 months after TIPS. Hepatic encephalopathy occurred cumulatively in 1 case (1/13), 1 case (1/13) and 1 case (1/13) in 12, 24 and 36 months after TIPS. Stent restenosis occurred cumulatively in 2 cases (2/13), 3 cases (3/13) and 3 cases (3/13) in 12, 24 and 36 months after TIPS. Portal vein thrombosis occurred cumulatively in 2 cases (2/13), and no primary liver cancer developed.Conclusions:TIPS is safe and effective in the treatment of INCPH with gastrointestinal bleeding with favorable medium-long term outcome.

8.
Neuroscience Bulletin ; (6): 1454-1468, 2021.
Article in Chinese | WPRIM | ID: wpr-951946

ABSTRACT

Visual object recognition in humans and nonhuman primates is achieved by the ventral visual pathway (ventral occipital-temporal cortex, VOTC), which shows a well-documented object domain structure. An on-going question is what type of information is processed in the higher-order VOTC that underlies such observations, with recent evidence suggesting effects of certain visual features. Combining computational vision models, fMRI experiment using a parametric-modulation approach, and natural image statistics of common objects, we depicted the neural distribution of a comprehensive set of visual features in the VOTC, identifying voxel sensitivities with specific feature sets across geometry/shape, Fourier power, and color. The visual feature combination pattern in the VOTC is significantly explained by their relationships to different types of response-action computation (fight-or-flight, navigation, and manipulation), as derived from behavioral ratings and natural image statistics. These results offer a comprehensive visual feature map in the VOTC and a plausible theoretical explanation as a mapping onto different types of downstream response-action systems.

9.
Chinese Journal of Hepatobiliary Surgery ; (12): 316-320, 2021.
Article in Chinese | WPRIM | ID: wpr-884662

ABSTRACT

Primary liver cancer is one of the most common malignant tumors in the world, and hepatocellular carcinoma accounts for the majority of liver cancer. Hepatectomy is one of the most important treatment methods, but the high postoperative recurrence rate is the leading cause of treatment failure, which seriously reduces the long-term survival rate and reduces quality of life. Therefore, preventing the recurrence of liver cancer is an important part of treatment. At present, there is no standard program for the treatment of hepatocellular carcinoma to prevent recurrence after surgery, most of the treatment programs include transarterial chemoembolization, antiviral therapy, traditional Chinese medicine treatment, targeted therapy, immunity therapy, etc., which has certain clinical significance in preventing recurrence. This paper reviewed the research progress on preventing recurrence of hepatocellular carcinoma after surgery, which may provide guidance for the clinical study.

10.
Biomolecules & Therapeutics ; : 184-194, 2021.
Article in English | WPRIM | ID: wpr-874324

ABSTRACT

Histone acetylation is a well-characterized epigenetic modification controlled by histone acetyltransferases (HATs) and histone deacetylases (HDACs). Imbalanced histone acetylation has been observed in many primary cancers. Therefore, efforts have been made to find drugs or small molecules such as HDAC inhibitors that can revert acetylation levels to normal in cancer cells. We observed dose-dependent reduction in the endogenous and exogenous protein expression levels of KAT8 (also known as human MOF), a member of the MYST family of HATs, and its corresponding histone acetylation at H4K5, H4K8, and H4K16 in chemotherapy drug gemcitabine (GEM)-exposed T24 bladder cancer (BLCA) cells. Interestingly, the reduction in MOF and histone H4 acetylation was inversely proportional to GEM-induced γH2AX, an indicator of chemotherapy drug effectiveness. Furthermore, pGL4-MOF-Luc reporter activities were significantly inhibited by GEM, thereby suggesting that GEM utilizes an MOF-mediated anti-BLCA mechanism of action. In the CCK-8, wound healing assays and Transwell ® experiments, the additive effects on cell proliferation and migration were observed in the presence of exogenous MOF and GEM. In addition, the promoted cell sensitivity to GEM by exogenous MOF in BLCA cells was confirmed using an Annexin V-FITC/PI assay. Taken together, our results provide the theoretical basis for elucidating the anti-BLCA mechanism of GEM.

11.
Neuroscience Bulletin ; (6): 1454-1468, 2021.
Article in English | WPRIM | ID: wpr-922640

ABSTRACT

Visual object recognition in humans and nonhuman primates is achieved by the ventral visual pathway (ventral occipital-temporal cortex, VOTC), which shows a well-documented object domain structure. An on-going question is what type of information is processed in the higher-order VOTC that underlies such observations, with recent evidence suggesting effects of certain visual features. Combining computational vision models, fMRI experiment using a parametric-modulation approach, and natural image statistics of common objects, we depicted the neural distribution of a comprehensive set of visual features in the VOTC, identifying voxel sensitivities with specific feature sets across geometry/shape, Fourier power, and color. The visual feature combination pattern in the VOTC is significantly explained by their relationships to different types of response-action computation (fight-or-flight, navigation, and manipulation), as derived from behavioral ratings and natural image statistics. These results offer a comprehensive visual feature map in the VOTC and a plausible theoretical explanation as a mapping onto different types of downstream response-action systems.


Subject(s)
Animals , Humans , Brain Mapping , Magnetic Resonance Imaging , Occipital Lobe , Pattern Recognition, Visual , Photic Stimulation , Temporal Lobe , Visual Pathways/diagnostic imaging , Visual Perception
12.
Chinese journal of integrative medicine ; (12): 252-258, 2021.
Article in English | WPRIM | ID: wpr-880548

ABSTRACT

OBJECTIVE@#To evaluate whether the efficacy of Getong Tongluo Capsule (, GTC, consisted of total flavone of Radix Puerariae) on improving patients' quality of life and lowering blood pressure are superior to the extract of Ginkgo biloba (EGB) for patients with convalescent-phase ischemic stroke and primary hypertension.@*METHODS@#This randomized, positive-drug- and placebo-controlled, double-blind trial was conducted from September 2015 to October 2017. Totally 477 eligible patients from 18 hospitals in China were randomly assigned in a 2:1:1 ratio to the following interventions, twice a day for 12 weeks: (1) GTC 250 mg plus EGB-matching placebo 40 mg (237 cases, GTC group), (2) EGB 40 mg plus GTC-matching placebo 250 mg (120 cases, EGB group) or (3) GTC-matching placebo 250 mg plus EGB-matching placebo 40 mg (120 cases, placebo group). Moreover, all patients were orally administered aspirin enteric-coated tablets 100 mg, once a day for 12 weeks. The primary outcome was the Barthel Index (BI). The secondary outcomes included the control rate of blood pressure and National Institutes of Health Stroke Scale (NIHSS) scores. The incidence and severity of adverse events (AEs) were calculated and assessed.@*RESULTS@#The BI relative independence rates, the clinical recovery rates of NIHSS, and the total effective rates of NIHSS in the GTC and EGB groups were significantly higher than the placebo group at 12 weeks after treatment (P0.05). The control rate of blood pressure in the GTC group was significantly higher than the EGB and placebo groups at 12, 18 and 24 weeks after treatment (P0.05).@*CONCLUSION@#GTC exhibited significant efficacy in improving patients' quality of life as well as neurological function and controlling hypertension. (Registration No. ChiCTR1800016667).

13.
China Journal of Orthopaedics and Traumatology ; (12): 165-169, 2021.
Article in Chinese | WPRIM | ID: wpr-879391

ABSTRACT

OBJECTIVE@#To investigate relationship between cold pain of knee joint and subchondral bone marrow edema (BME).@*METHODS@#From May 2018 to August 2019, 92 patients with knee osteoarthritis (KOA) associated with cold pain of knee were admitted, all patients were underwent MRI examination. The patients were divided into observation group (47 patients with BME) and control group(45 patients without BME). In observation group, there were 6 males and 41 females aged from 36 to 87 years old with an average of (63.2±12.3) years old. In control group, there were 10 males and 35 females, aged from 48 to 84 years old with an average of (62.7±8.3) years old. All patientswere treated with drugs. The degree of joint degeneration was evaluated by Kellgren-Lawrence (K-L) grading. Degree of cold pain of knee was evaluated by knee cold pain score, and degree of BME was evaluated according to WORMS. The correlation between cold pain of knee and K-L grading and BME was analyzed.@*RESULTS@#Score of cold pain in observation group (15.55±7.68) was higher than that of control group (9.42± 5.50), which had significant difference (@*CONCLUSION@#The cold pain of KOA patients is not related to K-L grading, but corelate with BME grading. The Cold pain of knee was more pronounced in KOA patients with BME, and the severity of BME is often related to degree of cold pain. It seemed to be a tendency:the more serious BME, the heavier coldpain.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Bone Marrow , Edema , Knee Joint/diagnostic imaging , Magnetic Resonance Imaging , Osteoarthritis, Knee/diagnostic imaging , Pain/etiology
15.
Cancer Research and Clinic ; (6): 381-386, 2020.
Article in Chinese | WPRIM | ID: wpr-872510

ABSTRACT

Objective:To compare the prognosis of fluoroucil combined with cisplatin and paclitaxel combined with cisplatin regimens with concurrent radiotherapy in treatment of esophageal squamous cell carcinoma.Methods:A total of 120 patients with esophageal squamous cell carcinoma who were admitted to Anyang Tumor Hospital of Henan Province from December 2012 to November 2018 were randomly divided into group A and group B by using a random number generator. Group A was given cisplatin combined with 5-fluorouracil, and group B was given cisplatin combined with paclitaxel. Both groups had the same radiotherapy regimen, and both used intensity-modulated radiation therapy (IMRT). Completions of 50 Gy radiotherapy and at least one cycle of chemotherapy were considered to be in line with the plan. Survival data was analyzed in the term of intention-to-treat (ITT) and per-protocol (PP) set.Results:Of the 120 patients, 114 patients were treated and the adverse reactions could be evaluated, including 55 cases in group A and 59 cases in group B. The incidence of grade Ⅲ-Ⅳ leukopenia in group B was higher than that in group A [49.2% (29/59) vs. 25.5% (14/55)], and the difference was statistically significant ( χ2 = 6.805, P = 0.012), and there were no statistical differences in the other adverse reactions between the two groups (All P > 0.05). A total of 113 cases can be analyzed for survival. According to ITT analysis, the median progression-free survival (PFS) time in group A and group B was 28.0 months (95% CI 15.5-34.5 months) and 27.0 months (95% CI 17.0-41.0 months), the median overall survival (OS) time was 28.0 months (95% CI 15.8-34.2 months) and not reached, the differences were not statistically significant (both P > 0.05). According to PP analysis, the median PFS time in group A and group B was 28.0 months (95% CI 15.8-34.2 months) and 29.0 months (95% CI 14.9-45.1 months), the median OS time in group A and group B was 28.0 months (95% CI 3.7-52.3 months) and not reached, the differences were not statistically significant (both P > 0.05). Conclusions:The fluorouracil combined with cisplatin regimen and paclitaxel combined with cisplatin regimen with concurrent radiotherapy have similar PFS and OS time in treatment of esophageal squamous cell carcinoma, the adverse reactions are different, but they are all tolerable. In individualized clinical practice, the toxicities and costs of the two regimens can be comprehensively considered.

16.
Acta Pharmaceutica Sinica ; (12): 245-257, 2019.
Article in Chinese | WPRIM | ID: wpr-780104

ABSTRACT

Ionic liquids are not limited to the traditional use of solvents because of their high permeability and excellent physicochemical and unique biological properties. Nowadays, with the deep understanding of their toxicity and biocompatibility, ionic liquids have been tailored as novel solutions to address potential problems of marketed drugs. Based on the research and development of modified new drugs, ionic liquids have been incorporated into drug synthesis and emerged as attractive environmental-friendly reaction media with milder reaction conditions, higher yields and easier reaction workups and drug delivery systems. In addition, they have been designed for effective drug carriers removing undesirable properties of solid drugs. Further, ionic liquids forming active pharmaceutical ingredients dedicated to the liquefaction of drugs for promising clinical applications.

17.
Chinese Journal of Disease Control & Prevention ; (12): 1517-1522, 2019.
Article in Chinese | WPRIM | ID: wpr-779549

ABSTRACT

Objective To analyze the demand for non-occupational post-exposure prophylaxis (nPEP) services and related influencing factors among men who have sex with men (MSM) in Liuzhou City, Guangxi Province. Methods MSM was recruited in Liuzhou City, Guangxi Province. Face-to-face survey was used to collect demographic information, knowledge about AIDS, history of high-risk behavior, knowledge and demand for nPEP services. 2 test was used to analyze the differences of demand for nPEP services among MSM with different characteristics and different high-risk behaviors. Log-binomial regression model was used to analyze the influencing factors of demand for nPEP services. Prevalence ratio and 95% confidence interval were calculated. Results 31.1% of MSM population had heard of nPEP service, and 61.6% of them needed the service after being informed of nPEP about its protective effect. 58.6% of MSM would spend money to buy nPEP service after high-risk behavior. Logistic regression analysis showed that the education level was university degree or above (PR=2.743, 95% CI: 1.996-3.450), the perception of the local MSM AIDS epidemic was not serious or unknown (PR=0.211, 95% CI: 0.112-0.294), and the number of temporary sexual partners in half a year was 2 or more (PR=3.642, 95% CI: 2.223-4.842), these subjects above were influencing factors of nPEP service demanded for respondents. Conclusions MSM population in Liuzhou area of Guangxi have a certain need for nPEP service. We should implement nPEP service as soon as possible in accordance with local conditions, and strengthen the corresponding propaganda to reduce the harm of AIDS to MSM population.

18.
Acta Physiologica Sinica ; (6): 163-172, 2019.
Article in Chinese | WPRIM | ID: wpr-777199

ABSTRACT

The analysis of the relationship between personality and depression can facilitate the development of subclinical preventive measures and clinical treatment schemes. Moreover, the personality is associated with a variety of mental diseases, and there is substantial comorbidity between depression and some other mental diseases. So, to reveal pathological relationships between personality and depression is helpful to understand the etiology of the comorbidity between depression and multiple mental disorders. In this review, we first summarize the empirical researches on the relationship between personality and depression from the aspects of behavior and neural mechanisms, and then discuss the hypothetical model to explain the relationship between personality and depression. In a word, high neuroticism, low extroversion and conscientiousness, and other related traits (rumination, self-criticism, dependency, etc.) have a moderate to strong correlation with depression. Among them, neuroticism is the most concerned. To a certain extent, it can predict the onset of depression and affect the duration and treatment outcome of depression. Other traits, such as positive emotionality/ extroversion and effortful control/responsibility, can moderate the relationship between negative emotionality/neuroticism and depression. And after the onset of depression, the neuroticism may change, but the extroversion does not seem to change.


Subject(s)
Humans , Comorbidity , Depression , Personality
19.
Chinese Journal of Rehabilitation Theory and Practice ; (12): 1202-1208, 2019.
Article in Chinese | WPRIM | ID: wpr-905687

ABSTRACT

Objective:A novel four-degree-of-freedom upper limb rehabilitation robot was designed to overcome the shortcomings of the structure of the most of serial robots. Methods:The shoulder and elbow joint drive system and the information detection system were placed in the base. The synchronous belt drive system and the spiral bevel gear transmission system were designed to transmit power from the base to the shoulder and elbow joint of the arm. The cubic polynomial trajectory planning method based on the joint space was selected to accomplish the trajectory planning of the recovery movements of taking objects and drawing quadrilaterals, and the single-degree-of-freedom motion control experiment and multi-degree-of-freedom trajectory planning experiment were designed to verify the rationality and feasibility of the design. Results:Each joint of the rehabilitation robot reached the designed range of motion at the designed speed, and well completed the planned rehabilitation training movements. Conclusion:This robot can effectively reduce the volume and mass of the mechanical arm, overcome the influence of motor noise and radiation on patients' rehabilitation training, and assist patients to complete a variety of rehabilitation exercises.

20.
Cancer Research and Clinic ; (6): 725-728,738, 2018.
Article in Chinese | WPRIM | ID: wpr-712892

ABSTRACT

Objective To analyze copy number variance (CNV) in whole genome by using gene chip technology, and to screen the radiosensitivity associated genes on esophageal squamous cell carcinoma (ESCC). Methods The patients with ESCC who received radiotherapy alone in Anyang Tumor Hospital from December 2013 to August 2016 were selected, and biopsy paraffin samples were preserved in the center of pathology. The patients were divided into radiosensitivity group (group S) and radio-resistance group (group R). DNA was extracted from these paraffin samples in both groups. Whole human genome CNV was detected by using genechip from OncoScan Array platform designed by Affymetrix company, and the differences of gene segments were screened in the two groups. Results Nineteen samples of ESCC patients were collected to extract DNA in this study. To balance pair analysis in the two groups, 10 samples were selected from the qualified patients, including 5 cases in group S and 5 cases in group R respectively. There were no statistical differences in gender, age, lesion site, lesion length, radiation dose of the two groups (all P> 0.05). Loss of heterozygosity (LOH) was the main type of CNV. The analysis results showed that LOH in q24.32-q24.33 of chromosome 10 and LOH in q21.2-q21.31 of chromosome 18 had high frequencies (100 %) in group R, however, none were detected in group S. LOH in q27-q28.1 of chromosome 4 had a high frequency (80%) in group S , however, none were detected in group R. Conclusion LOH in 10q/18q is related to radio-resistance in ESCC, and LOH in 4p is associated with radiosensitivity in ESCC.

SELECTION OF CITATIONS
SEARCH DETAIL