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1.
Chinese Pharmacological Bulletin ; (12): 1121-1126, 2023.
Artigo em Chinês | WPRIM | ID: wpr-1013789

RESUMO

Aim To investigate the effect of tyrosine kinase inhibitor AG1478 combined with oxaliplatin (OXA) on apoptosis of colorectal cancer HCT116 cells. Methods MTT assay was used to measure the effect of AG1478 combined with OXA on proliferation of HCT116 cells. RT-qPCR was used to detect the mRNA expression levels of p53, caspase-3, Bcl-2 and Bax. Western blot was used to detect the proteins expression of p53, caspase-3, cleaved-caspase 3, Bcl-2, Bax, p62, LC3 and IL-6. Results Both OXA and AG1478 inhibited the proliferation of HCT116 (P < 0. 01). IC

2.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 1-6, 2021.
Artigo em Chinês | WPRIM | ID: wpr-905920

RESUMO

Objective:To observe the effect of Qigesan on the proliferation and apoptosis of the human esophageal cancer cell EC9706, and the effect on miR-133a/protein kinase B(Akt)/mammalian target of rapamycin (mTOR) signaling pathway. Method:The effective constituent of Qigesan was extracted by ethyl acetate. Thiazolyl blue tetrazolium bromide(MTT) colorimetric assay was used to determine the dosage of Qigesan on cells and to detect the effect of Qigesan on the proliferation of EC9706 cells. The effect of Qigesan on apoptosis of EC9706 cells was detected by flow cytometry. The effect of Qigesan on miR-133a and insulin-like growth factor 1 receptor(IGF-1R) mRNA expression was detected by Real-time quantitative polymerase chain reaction (Real-time PCR) . The protein expression of Akt and mTOR in EC9706 cells was detected by Western blot. Result:Qigesan can inhibit the proliferation of EC9706 cells in a dose-dependent manner(<italic>P</italic><0.01). Inhibitory concentrations 30% inhibition concentration(IC<sub>30</sub>) 40 mg·L<sup>-1</sup> and median inhibition concentration(IC<sub>50</sub>) 80 mg·L<sup>-1</sup> were selected for follow-up experiments. Compared with the blank group, both the inhibitor group and the combination drug group can inhibit the proliferation of EC9706 cells (<italic>P</italic><0.01). The inhibitor at 0.25 μmol·L<sup>-1</sup> was selected for subsequent experiments. Compared with the blank group, Qigesan 80 mg·L<sup>-1</sup> dose group could significantly promote the late apoptosis rate and total apoptosis rate of EC9706 cells(<italic>P</italic><0.05), and the 40 mg·L<sup>-1</sup> dose group could significantly promote the late apoptosis rate of EC9706 cells(<italic>P</italic><0.05), which shows synergistic effect after concomitant use with Akt/mTOR inhibitor(<italic>P</italic><0.05). Compared with the blank control group, each group can effectively increase expression of miR-133a(<italic>P</italic><0.05). The combination of inhibitor and traditional Chinese medicine(TCM) has obvious promotion effect. Compared with blank control group, the expressions of Akt and mTOR were significantly decreased in each group(<italic>P</italic><0.05). Compared with single medication, the expressions of Akt and mTOR were decreased in combination of inhibitor and TCM group. Conclusion:Qigesan can inhibit the growth of EC9706 cells and promote apoptosis, and its inhibitory mechanism may be related to the Akt/mTOR signaling pathway by regulating the expression of miR-133a.

3.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 217-224, 2020.
Artigo em Chinês | WPRIM | ID: wpr-873239

RESUMO

Esophageal cancer is one of the malignant tumors with a high morbidity and mortality in China. According to China's latest cancer report released by the National Cancer Center in 2019, the number of people suffering from esophageal cancer reached 246 000 in 2015, and the death toll reached 188 000. How to effectively treat esophageal cancer and improve the survival rate of patients is one of the most urgent problems in the field of medicine. Phosphatidylinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway is one of the most important signaling pathway for regulating cell survival, differentiation and apoptosis in the body. It also plays an important role in the occurrence and mechanism of various cancers. Recent studies have shown that the activation of PI3K/Akt signaling pathway is an important factor in regulating proliferation, apoptosis, cycle arrest, migration and invasion of esophageal cancer cells. The long-term clinical observation found that traditional Chinese medicine has a stable effect in the treatment of esophageal cancer and little side effects, especially in improving the quality of life of cancer patients and prolonging the survival period of patients. At present, it is a research hotspot to intervene this signal pathway with traditional Chinese medicine in the treatment of esophageal cancer, so as to explore its mechanism of action on esophageal cancer. This paper focused on literatures in CNKI and PubMed databases from 2009 to 2019, with PI3K/Akt signaling pathway, esophageal cancer and miRNA as the key words. A total of 226 literatures were retrieved, and 61 literatures relating to traditional Chinese medicine, esophageal cancer, miRNA and PI3K/Akt signaling pathway were sorted out and summarized. This paper reviewed the mechanism of PI3K/Akt signaling pathway in esophageal cancer, the relationship between miRNA and PI3K/Akt signaling pathway and esophageal cancer, and how traditional Chinese medicine can regulate the expressions of relevant proteins in PI3K/Akt signaling pathway to inhibit cell proliferation, affect cell growth cycle, induce cell apoptosis, inducing cell autophagy, inhibit tumor invasion and metastasis, inhibit angiogenesis. Finally, it can improve esophageal cancer to provide theoretical basis and scientific basis for the treatment of esophageal cancer with traditional Chinese medicine.

4.
Biomedical and Environmental Sciences ; (12): 885-892, 2016.
Artigo em Inglês | WPRIM | ID: wpr-296527

RESUMO

<p><b>OBJECTIVE</b>This study aimed to explore the association between periconceptional fish consumption by parents and autism spectrum disorder (ASD) and intelligence deficiency (ID).</p><p><b>METHODS</b>A case-control study was conducted through a questionnaire with 108 ASD cases, 79 ID cases, and 108 controls. The ASD and ID cases were students from special educational schools in Tianjin from 2012 to 2014. The age- and sex-matched controls were from a high school, three primary schools, and a kindergarten in Tianjin. Multivariate logistic regression was performed.</p><p><b>RESULTS</b>Paternal habit of eating hairtail before fertilization, maternal preference for fruits during pregnancy, and maternal habit of eating grass carp during pregnancy were preventive factors for ASD. Paternal habit of drinking alcohol before fertilization was a risk factor for ID, whereas maternal preference for fruits during pregnancy and maternal habit of eating crucian carp during pregnancy were protective factors for ID.</p><p><b>CONCLUSION</b>Parental fish consumption is beneficial for the prevention of ASD and ID. Meanwhile, the protective effects of fish consumption on ASD and ID differ. More attention should be paid to the combined effect of other food when eating fish.</p>


Assuntos
Adolescente , Animais , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Gravidez , Transtorno do Espectro Autista , Epidemiologia , Estudos de Casos e Controles , China , Epidemiologia , Dieta , Exposição Ambiental , Peixes , Incidência , Deficiência Intelectual , Epidemiologia , Exposição Materna , Exposição Paterna , Efeitos Tardios da Exposição Pré-Natal , Epidemiologia , Fatores de Risco , Especificidade da Espécie
5.
Journal of Preventive Medicine ; (12): 362-367, 2016.
Artigo em Chinês | WPRIM | ID: wpr-792491

RESUMO

Objective Toexploretheprognosticvalueofpreoperativeneutrophil-to-lymphocyteratioandderived neutrophil-to-lymphocyteratioincolorectalcancer(CRC)individuals.Methods Theclinicalpathologicaldataand preoperative blood routine test results were collected from medical records,and 5 year follow up was performed in a total of 555 surgically resected CRC cases.Receiver operative curve (ROC)was used to calculate NLR and d -NLR cut-off value,and Kaplan-Meier curve and multiple COX regression were selected to evaluate the influence of preoperative NLR and d -NLR on clinical outcome of CRC cases and prognostic predictive nomogram was established to evaluate the predictivevalueofNLRandd-NLR.Results Usingoverallsurvival(OS)asanendpoint,theoptimalcut-offvaluesof NLR and d-NLR were 3.21 (Sensitivity=0.752,specificity=0.753,AUC=0.762)and 2.12 (sensitivity=0.721, specificity=0.683,AUC=0.720),respectively.Preoperative NLR and d-NLR were significantly associated with free-recurrent survival (RFS)and OS(P<0.01).NLR and d-NLR were independent factors for prediction of RFS (HRNLR=2.53,HRd-NLR=1.60)and OS (HRNLR=2.75,HRd-NLR=2.11)in II-III stage preoperative CRC patients.The C-indexes of RFS and OS predictive nomograms including NLR and d-NLR were 0.851 and 0.836,and C-indexes without NLRandd-NLRwere0.801and0.793,respectively.Conclusion ThisresultsindicatedthatRFSandOSofthe patients with preoperative high NLR and d-NLR were significantly shorter than those with relative low NLR and d-NLR, and they were independent prognostic predictive factors for RFS and OS,and nomograms including NLR and d-NLR could significantly improve the prognostic predictive efficacy in postoperative CRC individuals.

6.
International Eye Science ; (12): 1824-1827, 2016.
Artigo em Chinês | WPRIM | ID: wpr-637947

RESUMO

AIM: To study the infiltration of polymorphonuclear neutrophils ( PMNs ) after conjunctival flap covering in alkali-burned cornea. ●METHODS: Rabbit cornea alkali-burned model was made, then 50 rabbits were randomly divided into the experimental group ( n=25 ) and the control group ( n=25 ) . At the same time the surgery of conjunctival flap covering was given to rabbits of the experimental group. The condition developing of alkali-burned cornea was observed by slit lamp biomicroscopy, and took photos in two groups. The infiltration of PMNs was identified by hematoxylin eosin ( HE) staining in different periods. ●RESULTS:The quantity of PMNs increased on the 3d, reached the lower level on 7d, shown a peak on the 14d, then decreased gradually. PMNs level of the experimental group was significantly lower than that in the control group, and the difference of 3, 14 and 21d was significant (P ●CONCLUSION: During the wound healing process, alkali - burned cornea has close relation with the infiltration of PMNs. The treatment of conjunctival flap covering for the severe alkali-burned cornea was found to have good effect.

7.
China Journal of Chinese Materia Medica ; (24): 1410-1414, 2015.
Artigo em Chinês | WPRIM | ID: wpr-246086

RESUMO

To analyze and discuss placebo-related information in clinical research literatures in the past 30 years, including placebo's dosage form, ingredients, preparation process and quality control. Effort were made to research the CNKI. full-text database to preliminary find 700 placebo-related clinical research literature, screen out 301 eligible articles by hand, read the literatures to extract placebo-related information and make statistics and discussions. According to the results, Chinese randomized placebo-controlled clinical studies were characterized by diverse dosage forms of placebo with lack of reports for components, as evidenced by the only 17 literatures describing placebo's preparation or specific composition among the 301 literatures. Placebo-controlled clinical trials covered a wide range of disease spectra, but with a specific tropism of diseases in terms of system classification. Although placebo plays a key role in blinded clinical studies, researchers made less records of placebo, perhaps because they paid less attention to placebo or more attention to the research process or restricted by other objective conditions. Moreover, placebo production, quality control and quality evaluation also need to be further standardized.


Assuntos
Humanos , Pesquisa Biomédica , História , Padrões de Referência , China , História do Século XX , História do Século XXI , Efeito Placebo , Controle de Qualidade , Ensaios Clínicos Controlados Aleatórios como Assunto , História , Padrões de Referência
8.
Chinese Medical Journal ; (24): 963-968, 2015.
Artigo em Inglês | WPRIM | ID: wpr-350371

RESUMO

<p><b>BACKGROUND</b>OnabotulinumtoxinA is widely used in treating neurogenic detrusor overactivity (NDO). We carried out a systematic review and meta-analysis to assess the efficacy and safety of the drug for treating NDO.</p><p><b>METHODS</b>We searched the following databases: Medline, EMBASE, and the Cochrane Controlled Trials Register. All published randomized double-blind, placebo-controlled trials of onabotulinumtoxinA for the treatment of NDO were identified in the analysis. The reference lists of the retrieved studies were also investigated.</p><p><b>RESULTS</b>Four publications involving a total of 807 patients were identified in the analysis, which compared onabotulinumtoxinA with placebo. The changes of the mean number of urinary incontinence per week (the standardized mean difference [SMD] = -10.91, 95% confidence intervals [CIs] = -14.18--7.63, P < 0.0001); maximum cystometric capacity (SMD = 146.09, 95% CI = 126.19-165.99, P < 0.0001) and maximum detrusor pressure (SMD = -32.65, 95% CI = -37.83--27.48, P < 0.0001) indicated that onabotulinumtoxinA was more effective than the placebo, despite the doses of onabotulinumtoxinA. Safety assessments primarily localized to the urinary tract indicated onabotulinumtoxinA were often associated with more complications. Urinary tract infections (relative risk [RR] =1.48, 95% CI = 1.20-1.81, P = 0.0002); hematuria (RR = 1.81, 95% CI = 1.00-3.24, P = 0.05) and urinary retention (RR = 5.87, 95% CI = 3.61-9.56, P < 0.0001).</p><p><b>CONCLUSIONS</b>This meta-analysis indicates that onabotulinumtoxinA to be an effective treatment for NDO with side effects primarily localized to urinary tract.</p>


Assuntos
Humanos , Toxinas Botulínicas Tipo A , Usos Terapêuticos , Bexiga Urinária Hiperativa , Tratamento Farmacológico
9.
Chinese Medical Sciences Journal ; (4): 204-207, 2014.
Artigo em Inglês | WPRIM | ID: wpr-242868

RESUMO

<p><b>OBJECTIVE</b>To assess the agreement between gonioscopy and ultrasound biomicroscopy (UBM) in detecting angle closure in Chinese patients with shallow anterior chamber.</p><p><b>METHODS</b>An observational comparative study of the two different examination methods was conducted. Patients with normal intraocular pressure and temporal peripheral anterior chamber depth less than a quarter of corneal thickness based on slit lamp examination were included in this study from December 2007 to May 2009 in the outpatient clinic of First Hospital of Tsinghua University. Gonioscopy was performed with a Goldman goniolens in dark room first and followed by full beam light and indentation. If the filtering trabecular meshwork was invisible or any peripheral anterior synechia was found, that quadrant of the angle was considered closed. UBM was first undertaken in a darkened room then repeated with normal room lighting. If iridotrabecular apposition was showed, that quadrant of the angle was considered closed. The status of angle closure of each quadrant with different methods was recorded.</p><p><b>RESULTS</b>85 eyes of 46 patients were included in this study. The agreement between gonioscopy and UBM was poor (Κ<0.4) with Kappa analysis in both dark and light conditions in each quadrant. The accordance of agreement between gonioscopy and UBM was hardly affected by age or sex, while in dark condition, eyes with deeper anterior chamber (P=0.005) or plateau iris configuration tended to produce different results (P=0.075) in the 2 methods.</p><p><b>CONCLUSION</b>Gonioscopy and UBM are both indispensable methods for detecting angle closure, neither can completely replace the other.</p>


Assuntos
Humanos , Glaucoma de Ângulo Fechado , Diagnóstico , Gonioscopia , Métodos
10.
Biomedical and Environmental Sciences ; (12): 453-461, 2014.
Artigo em Inglês | WPRIM | ID: wpr-270581

RESUMO

<p><b>OBJECTIVE</b>The aim of this study is to estimate the prevalence of autism spectrum disorder (ASD) among 18-36 month old children in the Tianjin Municipality of China, and to identify early signs of autistic children and the predictability of each individual symptom.</p><p><b>METHODS</b>A total of 8 000 children were screened to do a questionnaire based on CHAT modified to include more early signs of autism at the age of 18-36 months. Then the at-risk children were reexamined 1.5 years later and ASD children were identified based on DSM-IV. Early signs of autism were analyzed retrospectively by using discriminant function analysis performed among ASD children, children not followed up and children followed up but failing to meet ASD criteria.</p><p><b>RESULTS</b>Three hundred and sixty seven children were screened as being at-risk to ASD, and 22 of them were identified as having ASD in the subsequent diagnosis. The prevalence of ASD was 27.5 per 10 000 in Tianjin of China with a male to female ratio of 4:1. Items addressing social interactions and communications had higher predictability than other items to distinguish autistic children from non-autistic ones. Pretend play, functional play, showing and reading parents' facial expressions distinguished autistic children from those not followed up, nevertheless those followed up but failing to meet ASD criteria were not included.</p><p><b>CONCLUSION</b>The prevalence of ASD found in our study was lower than that reported in some studies by western researchers. Autism has its specific symptoms, such as deficits in social awareness, social relatedness, and social referencing.</p>


Assuntos
Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Desenvolvimento Infantil , Transtornos Globais do Desenvolvimento Infantil , Epidemiologia , Psicologia , China , Epidemiologia , Diagnóstico Precoce
11.
Chinese Journal of Preventive Medicine ; (12): 233-236, 2012.
Artigo em Chinês | WPRIM | ID: wpr-292491

RESUMO

<p><b>OBJECTIVE</b>To explore the toxic effect of fluoride on the human thyroid cells (Nthy-ori 3-1) and its mechanism.</p><p><b>METHODS</b>Nthy-ori 3-1 cells were exposed to 0.0, 0.1, 1.0, 3.0 mmol/L of sodium fluoride (NaF) in vitro. After 24 hours incubation, 3 (4,5-Dimethylthiazol-z-yl)-3, 5-diphenyltetrazolium bromide (MTT) assay and lactate dehydrogenase (LDH) assay were used to measure cell viability and the LDH leakage rate. Reactive oxygen species (ROS) level, constituent ratio of the cell cycle, and apoptosis rate were measured by flow cytometry.</p><p><b>RESULTS</b>Comparing to viability of control group (set as 100.00%), the cell viability of the 1.0, 3.0 mmol/L fluoride-treated groups (76.64 +/- 9.13)%, (64.04 +/- 6.32)% were significantly decreased (all P values <0.01). LDH leakage rate and ROS level of the 3.0 mmol/L fluoride-treated group ((48.66 +/-7.15)%, (29993.50 +/- 1786. 86) FI) were significantly increased (all P values <0.01) compared to control group ((35.24 +/- 3.02)%, (13021.33 +/- 1067.55) FI). The G0/G1 phase cells of the 1.0 mmol/L fluoride-treated group ((40.76 +/- 5.65)%) were lower than control group (60.09 +/- 1.76)% (P < 0.01), yet the percentage of cells in S phase ((54.05 +/- 4.59)%) were higher than the control group (32.59 +/- 2.43) % (P < 0.01). Comparing to control group ((9.64 +/- 3.44)%), the percentage of apoptosis cells increased in the 3.0 mmol/L fluoride-treated group ((20.09 +/- 3.22)%) (P < 0.01).</p><p><b>CONCLUSION</b>To Nthy-ori 3-1 cells, fluoride under experimental concentrations decreases cell viability, improve the LDH leakage rate, and ROS level. It blocks the cells in S phase and induce cell apoptosis.</p>


Assuntos
Humanos , Apoptose , Ciclo Celular , Divisão Celular , Linhagem Celular , Fluoretos , Toxicidade , Espécies Reativas de Oxigênio , Glândula Tireoide , Biologia Celular
12.
Journal of Korean Academy of Psychiatric and Mental Health Nursing ; : 22-33, 2010.
Artigo em Coreano | WPRIM | ID: wpr-132834

RESUMO

PURPOSE: The purpose of this study was to compare health promotion lifestyles and self-esteem of nursing students in Korea and China. METHODS: With a descriptive comparative design, a total of 305 Korean and 317 Chinese nursing students were recruited. The health promotion lifestyles was measured by Walker's Health-promoting Lifestyle Profile II instrument and self esteem was measured by Rosenberg's self esteem instrument. Data were analyzed by descriptive statistics and multiple regression. RESULTS: Korean students showed significantly higher levels of health responsibility, nutritional habit, interpersonal relations, and spiritual growth compared with Chinese students, but physical activity was higher in Chinese students. The factors influencing health promotion lifestyle were self-esteem, nation, and satisfaction of school life. The levels of health promotion lifestyles positively correlated with self-esteem in Korean and Chinese nursing students. CONCLUSION: Nurse educators should consider to develop health-promoting activities and programs reflecting curricular and cross-cultural perspectives.


Assuntos
Humanos , Povo Asiático , China , Promoção da Saúde , Relações Interpessoais , Coreia (Geográfico) , Estilo de Vida , Atividade Motora , Autoimagem , Estudantes de Enfermagem
13.
Journal of Korean Academy of Psychiatric and Mental Health Nursing ; : 22-33, 2010.
Artigo em Coreano | WPRIM | ID: wpr-132831

RESUMO

PURPOSE: The purpose of this study was to compare health promotion lifestyles and self-esteem of nursing students in Korea and China. METHODS: With a descriptive comparative design, a total of 305 Korean and 317 Chinese nursing students were recruited. The health promotion lifestyles was measured by Walker's Health-promoting Lifestyle Profile II instrument and self esteem was measured by Rosenberg's self esteem instrument. Data were analyzed by descriptive statistics and multiple regression. RESULTS: Korean students showed significantly higher levels of health responsibility, nutritional habit, interpersonal relations, and spiritual growth compared with Chinese students, but physical activity was higher in Chinese students. The factors influencing health promotion lifestyle were self-esteem, nation, and satisfaction of school life. The levels of health promotion lifestyles positively correlated with self-esteem in Korean and Chinese nursing students. CONCLUSION: Nurse educators should consider to develop health-promoting activities and programs reflecting curricular and cross-cultural perspectives.


Assuntos
Humanos , Povo Asiático , China , Promoção da Saúde , Relações Interpessoais , Coreia (Geográfico) , Estilo de Vida , Atividade Motora , Autoimagem , Estudantes de Enfermagem
14.
The Journal of the Korean Orthopaedic Association ; : 374-378, 2008.
Artigo em Coreano | WPRIM | ID: wpr-650281

RESUMO

Calcific amyloidoma of the soft tissue is quite rare and it is difficult to make a differential diagnosis from other lesions such as osteomyelitis or bone tumor. We encountered a case of a calcified amyloidoma found in the anterior tibial muscle that occurred more than 20 years after a proximal tibial fracture adjacent to the origin of the muscle. The features of the lesion resembled osteomyelitis. Satisfactory result was obtained by a thorough mass excision. We report this case with review of the relevant literature.


Assuntos
Diagnóstico Diferencial , Músculo Esquelético , Músculos , Osteomielite , Fraturas da Tíbia
15.
The Journal of the Korean Orthopaedic Association ; : 595-600, 2008.
Artigo em Coreano | WPRIM | ID: wpr-644533

RESUMO

PURPOSE: By achieving informations about sagittal shape and motion of each lumbar segment in normal subjects, we tried to get the standards useful in management of spinal disorders and fractures. MATERIALS AND METHODS: Thirty normal adults without any disorder on their back were adopted. L3 centered thoracolumbar (T-L) X-ray's including standing lateral, AP's in righ-tleft bending, and flexion- extension lateral were checked for each person. Cobb angles of each segment were measured. Statistical analysis was done for comparison by gender and correlation of each factors. RESULTS: Body shape of upper lumbar vertebrae was kyphotic but caudal bodies are changed into lordotic gradually. Disc angle was lordotic in all the discs. Segmetal motion in sagittal plane was greatest at L4-L5 (18.6degrees). However, segmental motion at coronal plane was largest at L3-L4 (12.6degrees). CONCLUSION: We achieved Korean standard of shape and motion of each lumbar segment. Proportion of each factor contributing to total lumbar lordosis was evaluated also.


Assuntos
Adulto , Animais , Humanos , Lordose , Vértebras Lombares
16.
The Journal of the Korean Orthopaedic Association ; : 696-699, 2007.
Artigo em Coreano | WPRIM | ID: wpr-649418

RESUMO

Skeletal lesions such as osteomyelitis induced by acquired syphilis are rarely encountered except in the neuropathic joints of tertiary syphilis. The authors experienced syphilitic osteomyelitis of the clavicle in a 51 year-old lady. The lesion seemed to be a malignant tumor radiologically, but diagnosis was not achieved even by biopsy. However, thorough serologic examinations enabled an accurate diagnosis and the disease was controlled effectively by antibiotics, including penicillin injections. The authors report this case and include a review of the literature, which describes the rarity and clinical significance of this condition.


Assuntos
Humanos , Pessoa de Meia-Idade , Antibacterianos , Biópsia , Clavícula , Diagnóstico , Articulações , Osteomielite , Penicilinas , Sífilis
17.
The Journal of the Korean Orthopaedic Association ; : 537-544, 2007.
Artigo em Coreano | WPRIM | ID: wpr-645911

RESUMO

PURPOSE: Isoflavones are rich in soybean and are known to affect bone formation. This study examined the effects and modes of action of isoflavones on the differentiation of C2C12 myoblasts in the presence of the bone morphogenetic protein (BMP)-4. MATERIALS AND METHODS: The isoflavones, daidzein, genistein or equol, and/or BMP-4 were added alone or in combination to C2C12 myoblasts. After 72 hours culture, the cells were stained for the early osteoblastic differentiation marker, alkaline phosphatase (ALP). The ALP activity was determined by comparing the color of the stained images as well as by spectrophotometry. The expression profiles of the extracellular matrix (ECM) genes responsible for the extensive remodeling at the cell surface were analyzed using agene expression microarray after treating thesamples with daidzein. RESULTS: ALP staining of BMP-4 or the isoflavones-treated cells showed that BMP-4 increased the activity of ALP in a dose dependent manner, whereas the isoflavones alone did not induced any remarkable increase. However, the ALP activity increased when the cells were treated with BMP-4 and any of the three isoflavones. The macrogen mouse MAC array data showed that the ECM genes, Mmp13 and Mmp3, were up-regulated by daidzein, whereas Col4a2, Col5a1 and Mmp9 were down-regulated. CONCLUSION: Isoflavones induce osteoblastic differentiation when combined with BMP-4, which is possibly achieved by modulating the expressional levels of various ECM genes.


Assuntos
Animais , Camundongos , Fosfatase Alcalina , Proteínas Morfogenéticas Ósseas , Equol , Matriz Extracelular , Genisteína , Isoflavonas , Mioblastos , Osteoblastos , Osteogênese , Glycine max , Espectrofotometria
18.
Journal of Korean Society of Spine Surgery ; : 132-139, 2005.
Artigo em Coreano | WPRIM | ID: wpr-113270

RESUMO

STUDY DESIGN: A retrospective study of surgically managed patients. OBJECTIVES: To evaluate the results of posterior stabilization of a thoracolumbar fracture, without fusion, followed by the removal of metal implants within an appropriate period. Changes in the sagittal alignment and the restoration of segmental motion were also investigated. SUMMARY OF LITERATURE REVIEW: In managing unstable thoracolumbar and lumbar fractures, posterior fusion, using a transpedicular screw system, has been the treatment of choice, but results in the permanent loss of segmental motion. MATERIALS AND METHODS: Twelve patients with thoracolumbar and lumbar spine fractures, under 40 years of age (mean 28.4 years), were managed using this non-fusion method. Implants were removed at mean 9.2 months after the initial fixation of the fracture. For metal-fixed segments, the sagittal alignment, such as the angle of kyphosis, height of body, recovered motion range in flexion-extension and right-left bending view, were measured radiologically and compared with a control group. Clinical aspects, such as gross deformity and functional ability, were also investigated. RESULTS: The average sagittal angle at the time of injury was average 17.2 degrees, but became 1.7 degrees post-fixation, which increased after removal of the implants, reaching 9.8 degrees at the final follow up. The height of the fractured body was maintained until the final follow-up. The mean segmental motion measured in the sagittal and coronal planes were 11.7 and 9.5 degrees, respectively. Most patients were satisfied with the final gross appearance and functional outcomes. Only one patient showed considerable development of kyphotic angulation, but the functional outcome was good. CONCLUSION: The author's non-fusion method seems to be effective in achieving stability and sagittal alignment, as well as in regaining segmental motion of the fixed segments. The non-fusion method seems to be an effective method for managing thoracolumbar fractures, especially for young active persons.


Assuntos
Humanos , Anormalidades Congênitas , Seguimentos , Cifose , Estudos Retrospectivos , Fraturas da Coluna Vertebral , Coluna Vertebral
19.
The Korean Journal of Parasitology ; : 19-24, 1997.
Artigo em Inglês | WPRIM | ID: wpr-84709

RESUMO

The infection status of anisakid larvae was examined in 290 marine fish of 25 species and in 108 cephalopods of 3 species purchased in Bayuquan region, Yingko city nearby the coast of the Bohai Sea from may to August 1992. A total of 7,327 larvae were collected from 156 fish of 19 species and 8 squids of one species. The 3rd-stage larvae of Anisakis simplex were collected from 121 fish (63.4%) of 15 species (N = 191) and from 8 squids (14.8%) of one species (N = 54), and they were total, 5,992 (81.8%). Out of remaining 1,335 larvae, 154 (2.1%) were classified as Thynnascaris type B from 23 fish of 4 species, 1,013 (13.8%) as Thynnascaris type C from 79 fish of 13 species. 164 (2.2%) as Hysterothylacium China type V from 20 fish of 4 species, 3 (0.04%) as Raphidascaris from 3 fish of 2 species and one was Pseudoterranova decipiens larva.


Assuntos
Animais , Anisaquíase/veterinária , Anisaquíase/parasitologia , Anisaquíase/epidemiologia , Anisakis/isolamento & purificação , Anisakis/classificação , China , Doenças dos Peixes/parasitologia , Doenças dos Peixes/epidemiologia , Peixes , Larva , Água do Mar , Decapodiformes/parasitologia
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