1.Peropective comparison of hydroxyapatite orbital implant between primary and second drilling procedure
Dou SONG ; Fang GAO ; Liya GAO ; Guizhen SUN ; Yuan YOU
Chinese Journal of Medical Aesthetics and Cosmetology 2009;15(5):308-312
Objective To evaluate the clinical effect of the procedure that involves drilling and inserting a motility peg at the time of hydroxyapatite orbital implant.Methods 89 patients who needed hydroxyapatite orbital implant were divided into groups A and B.The patients in group A were drilled and inserted a motility titanium peg when hydroxyapatite implantation.The patients in group B were drilled and inserted a motility titanium peg 6 months after hydroxyapatite implantation.Data were recorded.including the rate of postoperative pain and conjunctive edema,postoperative facial appearance,motility of the artifieial eye,the rate of hydroxyapatite exposure,excursion and extrusion of titanium peg and other complications.Results The mobility of the prosthesis was 44.97%in group A,and 45.34%in group B.There was no difference in appearance and the motility of their artificial eye between the two groups.The rate of excursion of titanium peg was 4.2% in group A and 7.3%in group B and no statistical difference was found between the two groups.There were no prosthesis exposure,extrusion of titanium peg,secondary infeetion and other complication in one-year follow-up.There were no difference in the rate of postoperative pain and eonjunctive edema in first operative stage.The postoperative reaction in group A was lighter than that in group B in secondary operanve stage.Conclusion The hydroxyapatite orbital implant primary procedure drilling is simple,safe,convenient and effective.It is worth to recommend that procedure that involves drilling and inserting a motility peg at the time of hydroxyapatite orbitaI primary implant.
2.Hippocampal neuron damage and cognitive dysfunction of diabetic Wistar rats.
Hongyu XUE ; Junbo WANG ; Yuxia ZHUANG ; Guizhen GAO
Journal of Biomedical Engineering 2014;31(6):1305-1309
This study aimed to explore the cognitive dysfunction of and hippocampal neuron damage to Wistar rats with STZ-induced diabetes at different morbidity time. All Wistar rats in the tests received intraperitoneal injections of streptozotocin (STZ; 60 mg/kg) to induce type 1 diabetes. The concentration of blood glucose and the body weight were investigated, the cognitive ability of rats was assessed using a standardized Y-maze, and the apoptotic neurons in the CA1 of the hippocampus were also examined by using the HE staining. While the sickening time was prolonged, the blood glucose concentration of the experimental rats increased continuously and the body weight decreased. On the 70th day after STZ administration, the neuronal loss in the hippocampal CA1 region increased and the working errors increased in rats with the diabetes. The results showed that Wistar rats could complicate with diabetic encephalopathy in 70 days after injection of STZ for inducing the diabetes.
Animals
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Blood Glucose
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Body Weight
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CA1 Region, Hippocampal
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cytology
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pathology
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Cognition
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Cognition Disorders
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physiopathology
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Diabetes Mellitus, Experimental
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physiopathology
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Diabetes Mellitus, Type 1
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Neurons
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pathology
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Rats
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Rats, Wistar
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Streptozocin
3.Expression and clinical significance of urotensin Ⅱ in lung cancer tissue
Hongmin GAO ; Li LI ; Zhonghe YU ; Guizhen TIAN
Journal of International Oncology 2012;39(10):794-796
ObjectiveTo investigate the expression of urotensin Ⅱ(UⅡ) in the lung cancer tissue from surgical resection of lung cancer patients,and to detect the relationship between UⅡ expression and pathologie types and the clinical stages of lung cancer.MethodsThe expression rates of UⅡof 45 lung cancer tissues and 20 inflammatory pseudotumor were measured by immunohistochemical assay,and the relationship between UⅡ expression and the pathologic types and clinical stages of lung cancer was analyzed.ResultsUⅡwas mainly distributed in lung cancer cell cytoplasm,which was tan-yellow particles.The positive expression rate of UⅡin nonsmall cell lung cancer was 61.3% (19/31),which was higher than that in small cell lung cancer(7.1%,1/14)and pulmonary inflammatory pseudotumor( 15.0%,3/20) (P < 0.01 ).The positive expression rate of UⅡ was 100% in adenocareinoma.The positive expression rate of UⅡin staging Ⅲ non-small cell lung cancer( 85.7% )was higher than that of staging Ⅰ ( 16.7% ) ( P < 0.05).ConclusionUⅡ cxists in the cytoplasm of lung cancer cells,and the expression of UⅡis correlated with the pathological type and TNM staging of lung cancer.
4.Impact of human resistin on glucose uptake in adipocytes and its mechanism
Chunhua SHENG ; Yong JIN ; Yinghong ZHANG ; Shen GAO ; Lisha BU ; Shaojuan YANG ; Guizhen ZHANG
Chinese Journal of Endocrinology and Metabolism 2009;25(2):197-199
The human resistin expression vector was constructed and transfected into cells to observe its effects on glucose uptake in adipocytes,cell proliferation and differentiation.The results suggested that human resistin impaired glucose uptake in adipoeytes via stimulating proliferation of preadipocytes and suppressing adipocyte differentiation.Metformin reversed the inhibition imposed by resistin on adipogenesis.
5.Neuroprotective effect of sulfated pachymaran on the MPTP-induced Parkinson mice
Guizhen GAO ; Junbo WANG ; Fang JIANG ; Guangkun LI ; Xiaoyang LIU ; Hongyu XUE
Chinese Pharmacological Bulletin 2015;(12):1699-1703,1704
Aim To determine the neuroprotective effect of sulfated pachymaran (SP)on MPTP-induced
mouse model.Method ICR mice were randomly di-vided into control group,MPTP group and SP treatment group (50,1 00,1 50 mg·kg -1 ,ip).After 1 7 days, the activities of endogenous antioxidants (SOD,GSH-Px,CAT),antisuperoxide anion,hydrogen peroxide and MDA content in the midbrain and cortex were as-sayed.Results The results proved that SP significant-ly reduced the content of MDA and H2 O2 ,regulated
the activities of antioxidant enzyme and increased the activity of antisuperoxide anion.Conclusion All these effects indicate that SP is a potential neuroprotective a-gent and its neuroprotective effects are achieved in the MPTP mouse model.
6.Quantitative analysis based on three-dimensional CT in the contouring surgery of craniofacial fibrous dysplasia.
Wang RUICHEN ; Liu CHUNMING ; Jia CHIYU ; Li GUIZHEN ; Gao QUANWEN ; Wulan HASI ; Han YAN
Chinese Journal of Plastic Surgery 2015;31(3):168-172
OBJECTIVETo investigate the quantitative analysis based on three-dimensional computed tomography (3D-CT) in contouring surgery of complex craniofacial fibrous dysplasia (FD).
METHODS14 patients with craniofacial FD underwent 3D-CT scan. Axial images of patients with craniofacial FD were reconstructed into 3D model by using Mimics 10.0. Anatomical landmarks were located and the coordinate of the landmarks obtained. The differences between the right landmarks and the left were calculated and analyzed. Quantitative contouring surgery was performed based on the quantitative analysis result.
RESULTSWith the detail data from the 3D-CT analysis, the surgery of contouring was more safe and accurate with less operation time, less bleeding and good results.
CONCLUSIONSThe method of 3D CT quantitative analysis can provide precise information in the diagnosis and treatment planning of craniofacial deformity. Based on the result of 3D-CT quantitative analysis, the operations can be performed more accurately and safely with good symmetric consequence.
Aged ; Craniofacial Abnormalities ; diagnostic imaging ; Facial Bones ; abnormalities ; diagnostic imaging ; Fibrous Dysplasia, Polyostotic ; diagnostic imaging ; Humans ; Imaging, Three-Dimensional ; methods ; Tomography, X-Ray Computed ; methods
7.Advances of researches on caspases in neurodegenerative diseases.
Hongyu XUE ; Xuemei FANG ; Weiwei WANG ; Guizhen GAO
Journal of Biomedical Engineering 2013;30(2):438-442
Acute and chronic neurodegenerative diseases are illnesses associated with high morbidity and mortality, and few or no effective options are available for their treatments. Many neurodegenerative diseases are included in them, for example, stroke, brain trauma, spinal cord injury, amyotrophic lateral sclerosis (ALS), Huntington's disease, Alzheimer's disease, and Parkinson's disease. Given that central nervous system tissue has very limited, if any, regenerative capacity, it is of utmost importance to limit the damage caused by neuronal death. During the past decade, considerable progress has been made in understanding the process of cell death. In this article, we review the causes and mechanisms of neuronal-cell death, especially as it pertains to the caspases family of proteases associated with cell death. The results may be helpful to the experimental research and clinical application of neurodegenerative diseases.
Animals
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Apoptosis
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physiology
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Caspases
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metabolism
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Cell Death
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Humans
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Neurodegenerative Diseases
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enzymology
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pathology
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Neurons
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pathology
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Peptide Hydrolases
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metabolism
8.Efficacy of alveolar lavage combined with montelukast in the treatment of acute exacerbations of chronic obstructive pulmonary disease and its effect on oxidative stress and inflammatory factors in patients
Guizhen ZHANG ; Shuang CHEN ; Jinggang LIU ; Ke ZHANG ; Ya MENG ; Na WANG ; Yaping GAO
Chinese Journal of Primary Medicine and Pharmacy 2024;31(9):1378-1383
Objective:To investigate the efficacy of alveolar lavage combined with montelukast in the treatment of acute exacerbations of chronic obstructive pulmonary disease (AECOPD) and its effect on oxidative stress and inflammatory factors in patients.Methods:A prospective study was conducted involving 90 patients with AECOPD who were admitted to the Intensive Care Unit of Shan County Central Hospital from December 2021 to December 2022. The patients were randomly divided into a control group and an observation group, with 45 patients in each group, using the random number table method. The control group received conventional treatment, while the observation group was additionally treated with alveolar lavage combined with montelukast. Symptom score, Acute Physiology and Chronic Health Evaluation II score, overall response rate, serum levels of oxidative stress markers (malondialdehyde, 4-hydroxynonenal, and superoxide dismutase), and serum levels of inflammatory factors (C-reactive protein, tumor necrosis factor-α, interleukin-6, and procalcitonin) were compared between the two groups before and after treatment.Results:After treatment, the symptom scores for both groups decreased significantly compared with their respective scores before treatment ( t = 6.68, 11.32, both P < 0.05). After treatment, the symptom score in the observation group was significantly lower than that in the control group [(8.69 ± 0.84) points vs. (15.39 ± 1.18) points, t = 8.75, P < 0.05]. After treatment, the Acute Physiology and Chronic Health Evaluation II score in the observation group was significantly lower than that in the control group ( t = 9.19, P < 0.05). The overall response rate in the observation group was significantly higher than that in the control group [93.33% (42/45) vs. 75.56% (34/45), t = 4.56, P < 0.05]. After treatment, serum levels of 4-hydroxynonenal and malondialdehyde in the observation group were significantly lower than those in the control group ( t = 4.20, 5.15, both P < 0.05), while serum level of superoxide dismutase in the observation group was significantly higher than that in the control group ( t = 5.23, P < 0.05). After treatment, serum levels of C-reactive protein, tumor necrosis factor-α, interleukin-6, and procalcitonin in the observation group were significantly lower than those in the control group ( t = 6.86, 5.60, 8.75, 4.89, all P < 0.05). Conclusion:Alveolar lavage combined with montelukast can reduce clinical symptoms in patients with AECOPD, promote recovery, enhances clinical efficacy, decreases oxidative stress responses, increases the body's antioxidant capacity, lowers the expression of inflammatory factors, and reduces inflammatory responses.
10.Cognitive profile of children with newly onset benign epilepsy with centro-temporal spikes before treatment:a study of computerized cognitive testing in epilepsy.
Qian CHEN ; Dazhi CHENG ; Tong ZHENG ; Zhijie GAO ; Guizhen ZHANG ; Xiuxian YAN ; Xinlin ZHOU ; Guifang LUO ; Keming XU
Chinese Journal of Pediatrics 2015;53(10):754-759
OBJECTIVEBenign epilepsy with centro-temporal spikes (BECTs) is a common idiopathic partial epileptic syndrome in childhood, which often affect the pre-school and school-age children and a considerable proportion have comorbidity including lower academic achievement and cognitive impairment. Few studies involved the psychocognitive assessment in such a drug-treatable epileptic syndrome especially in the newly diagnosed and medications-naive group. This study aimed to investigate the cognitive characteristics of children with newly onset BECTs before treatment.
METHODForty-one outpatients with newly diagnosed BECTs who visited the Clinic during the periods from October 2012 to May 2014 before the medications against epilepsy and 41 healthy controls recruited from regular school in Beijing during the period from July 2013 to March 2014, who matched in age and gender underwent battery testing by computerized cognitive testing in epilepsy (CCTE). The BECTs group included 41 children, 20 boys and 21 girls, mean age (8.2 ± 1.7) years, the age of onset of epilepsy 4.5-11.5 years (the age of onset <8 years in 25 cases, ≥ 8 years in 16 cases). The cognitive characteristics and associated factors were analyzed. The primary data including correct answer numbers and reaction times were analyzed by independent sample t-test between the two groups of children with BECTs and healthy controls based on SPSS 18.0 statistical software.
RESULTRaw data of 9 tasks' scores collected from BECTs and healthy control children were continuous variables in accordance with normal distribution. BECTs children performed significantly worse than controls in choice reaction time ((618+158) vs. (524+254) ms), three-dimensional mental rotation (11 ± 10 vs. 18 ± 12) and visual tracing (10 ± 6 vs.15 ± 6), t=2.01, 3.03 and 3.47, P<0.05, <0.01 and <0.001, respectively.While other 6 tasks showed no significant difference between the two groups (P>0.05 for all comparisons). BECTs boys performed significantly worse than girls on simple substraction tasks compared with standard nine score ((4.7 ± 1.5) vs. (5.6 ± 1.2), t=-2.24, P<0.05). Other 8 tasks showed no significant difference between boys and girls (P>0.05 for all comparisons). Other 9 tasks showed no significant differences between the two groups of BECTs children whose age of onset was before 8 years and those who started seizure ≥ 8 years (P all >0.05). The standard nine scores of simple substraction from the three BECTs groups of dominance sides of spikes and waves during NREM showed significant difference (P<0.05). BECTs children with bilateral discharges performed significantly worse than the other two groups dominantly right or left discharges (4.7 ± 1.2 vs. 6.0 ± 1.2 vs. 4.9 ± 1.4, P all <0.05). There was no significant difference between the two groups with right and left side dominance discharges (P>0.05). Other 8 tasks showed no significant differences among the three groups (P>0.05 for all comparisons).
CONCLUSIONAlthough EEG discharges index below 50% during NREM period, while newly diagnosed BECTs children before treatment with medications against epilepsy performed poorer on tasks of choice reaction time, three-dimensional mental rotation, and visual tracing. The two factors of male and bilateral discharges during NREM period correlate with dysfunction of simple subtraction, the mechanism needs further study and the cognitive function of epilepsy children should be evaluated and followed up, in order to provide psychologic baseline data for persistent cognitive disturbance.
Beijing ; Case-Control Studies ; Child ; Child, Preschool ; Cognition ; Cognition Disorders ; diagnosis ; Comorbidity ; Epilepsy, Rolandic ; physiopathology ; Female ; Humans ; Male ; Reaction Time ; Seizures ; physiopathology