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1.
Rev. bras. med. esporte ; 29: e2023_0039, 2023. tab
Article in English | LILACS-Express | LILACS | ID: biblio-1431639

ABSTRACT

ABSTRACT Introduction: Ballroom dancing has become popular as an exercise method that encompasses many benefits in the social aspect. However, some middle-aged and elderly dancers have suffered from injuries and other problems from dancing. The comprehensive understanding of gymnastic training to solve this problem has not yet been raised, without which no adequate means of prevention can be outlined. Objective: Study the effect of balanced aerobic training on the physical fitness of middle-aged and elderly ballroom dance practitioners. Methods: A study was conducted with 50 volunteers practicing ballroom dancing, middle-aged and elderly, divided into experimental and control groups. According to the community square dance protocol, the control group performed the dance for one hour daily. The experimental group also used the same period and technique, introducing balanced aerobic exercises. Fitness and performance data were collected before and after the intervention, analyzed, and presented statistically. Results: In the experimental group, the growth rate of the grip strength index was 28.70%, the lumbar strength index was 32.27%, the time rate in the orthostatic position was 6.28%, and the sitting forward flexion index was 6.69%. Conclusion: Compared to traditional community sports, balanced aerobics inserted into ballroom dance training showed an improvement effect on the physical and sports fitness of middle-aged and elderly women, and may also prevent the adverse effects of aging on activities of daily living, and its implementation is valid. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.


RESUMO Introdução: A dança de salão popularizou-se como um método de exercício físico que abrange muitos benefícios no aspecto social. Contudo, alguns dançarinos de meia idade e idosos têm sofrido com lesões e outros problemas decorrentes da dança. A compreensão abrangente do treino com ginástica para a solução desse problema ainda não foi levantada, sem a qual não se pode traçar meios adequados de prevenção. Objetivo: Estudar o efeito do treinamento aeróbico balanceado sobre a aptidão física de praticantes de dança de salão de meia-idade e idosos. Métodos: Foi elaborado um estudo com 50 voluntários praticantes de dança de salão, de meia idade e idosos, divididos em grupos experimental e controle. O grupo de controle realizou a dança durante uma hora diária, de acordo com o protocolo de dança da praça comunitária. O grupo experimental também utilizou o mesmo período e técnica, introduzindo exercícios aeróbicos balanceados. Os dados de aptidão física e desempenho foram coletados antes e após a intervenção, analisados e apresentados estatisticamente. Resultados: No grupo experimental, a taxa de crescimento do índice de força de preensão foi de 28,70%, o índice de força lombar foi de 32,27%, a taxa de tempo em posição ortostática foi de 6,28%, e o índice de flexão sentado para frente foi de 6,69%. Conclusão: Em comparação com os esportes comunitários tradicionais, a aeróbica equilibrada inserida no treino de dança de salão apresentou um efeito de melhoria na aptidão física e esportiva das mulheres de meia-idade e idosas, podendo prevenir também os efeitos adversos do envelhecimento sobre as atividades de vida diária, sendo válida a sua implementação. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.


RESUMEN Introducción: Los bailes de salón se han popularizado como método de ejercicio físico que encierra muchos beneficios en el aspecto social. Sin embargo, algunos bailarines de mediana y avanzada edad han sufrido lesiones y otros problemas derivados del baile. Aún no se ha planteado un conocimiento exhaustivo del entrenamiento gimnástico para resolver este problema, sin el cual no se pueden esbozar medios adecuados de prevención. Objetivo: Estudiar el efecto del entrenamiento aeróbico equilibrado en la forma física de los practicantes de bailes de salón de mediana y avanzada edad. Métodos: Se desarrolló un estudio con 50 voluntarios practicantes de bailes de salón, de mediana y avanzada edad, divididos en grupos experimental y control. El grupo de control realizó el baile durante una hora diaria, según el protocolo de baile de salón de la comunidad. El grupo experimental utilizó el mismo período y la misma técnica, introduciendo ejercicios aeróbicos equilibrados. Se recogieron datos sobre la forma física y el rendimiento antes y después de la intervención, y se analizaron y presentaron estadísticamente. Resultados: En el grupo experimental, el índice de crecimiento del índice de fuerza de prensión fue del 28,70%, el índice de fuerza lumbar fue del 32,27%, el índice de tiempo en posición ortostática fue del 6,28% y el índice de flexión hacia delante sentado fue del 6,69%. Conclusión: En comparación con los deportes comunitarios tradicionales, los ejercicios aeróbicos equilibrados insertados en el entrenamiento de bailes de salón mostraron un efecto de mejora en la forma física y deportiva de las mujeres de mediana edad y ancianas, y también pueden prevenir los efectos adversos del envejecimiento en las actividades de la vida diaria, y su aplicación es válida. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

2.
Rev. bras. med. esporte ; 29: e2022_0533, 2023. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1423456

ABSTRACT

ABSTRACT Introduction Gymnastics has become a viral sport thanks to home isolation and low requirements for sports venues and equipment. However, evidence is still lacking that home gymnastics can maintain physical and psychological function stability, even if performed correctly. Objective Analyze the effects of home gymnastics during covid-19 restrictions. Methods This experiment adopts the intragroup control method, five times a week for four weeks. Before and after the experiment, relevant data such as baseline physical quality, body shape, body composition, and exercise indexes are collected. The data are compared and analyzed statistically. Results Home gymnastics can effectively improve the body composition of its practitioners, improve basal metabolism, improve their body shape, improve cardiopulmonary function, and make athletes maintain good exercise ability, good lifestyle habits, and a healthy mentality. Conclusion It is recommended that teachers and interested departments actively organize students at home to perform corresponding gymnastics and use sports to ward off bad lifestyle habits and anxiety, promoting good physical and psychological function during home isolation. Level of evidence II; Therapeutic studies - investigating treatment outcomes.


RESUMO Introdução A ginástica tornou-se um esporte viral graças ao isolamento doméstico e devido a suas baixas exigências para locais e equipamentos esportivos. Porém ainda faltam evidências de que a ginástica em casa possa manter a estabilidade da função física e psicológica, ainda que executada corretamente. Objetivo Analisar os efeitos da ginástica doméstica durante as restrições da covid-19. Métodos Este experimento adota o método de controle intragrupo, cinco vezes por semana durante quatro semanas. Antes e depois do experimento, os dados relevantes como qualidade física basal, forma corporal, composição corporal e índices de exercício são coletados. Os dados são comparados e analisados estatisticamente. Resultados A ginástica em casa pode efetivamente melhorar a composição corporal dos seus praticantes, melhorar o metabolismo basal, melhorar sua forma corporal, melhorar a função cardiopulmonar, e fazer com que os esportistas mantenham boa capacidade de exercício, bons hábitos de vida e mentalidade saudável. Conclusão Recomenda-se aos professores e departamentos interessados a organizarem ativamente os estudantes em casa para realizar a ginástica correspondente e usar o esporte para afastar os maus hábitos de vida e a ansiedade, promovendo uma boa função física e psicológica durante o isolamento doméstico. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.


RESUMEN Introducción La gimnasia se ha convertido en un deporte viral gracias al aislamiento doméstico y a sus escasas necesidades de instalaciones y equipamiento deportivo. Sin embargo, todavía no hay pruebas de que la gimnasia doméstica pueda mantener la estabilidad de la función física y psicológica, incluso si se realiza correctamente. Objetivo Analizar los efectos de la gimnasia domiciliaria durante las restricciones de covid-19. Métodos Este experimento adopta el método de control intragrupo, cinco veces por semana durante cuatro semanas. Antes y después del experimento, se recogen datos relevantes como la calidad física de referencia, la forma corporal, la composición corporal y los índices de ejercicio. Los datos se comparan y se analizan estadísticamente. Resultados La gimnasia en casa puede mejorar eficazmente la composición corporal de sus practicantes, mejorar el metabolismo basal, mejorar su forma corporal, mejorar la función cardiopulmonar y hacer que los deportistas mantengan una buena capacidad de ejercicio, buenos hábitos de vida y una mentalidad saludable. Conclusión Se recomienda a los profesores y a los departamentos interesados que organicen activamente a los alumnos en casa para que realicen la gimnasia correspondiente y utilicen el deporte para alejar los malos hábitos de vida y la ansiedad, promoviendo un buen funcionamiento físico y psicológico durante el aislamiento en casa. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

3.
Braz. j. med. biol. res ; 53(2): e9106, 2020. graf
Article in English | LILACS | ID: biblio-1055491

ABSTRACT

Reperfusion strategies in acute myocardial infarction (AMI) can cause a series of additional clinical damage, defined as myocardial ischemia/reperfusion (I/R) injury, and thus there is a need for effective therapeutic methods to attenuate I/R injury. miR-26a-5p has been proven to be an essential regulator for biological processes in different cell types. Nevertheless, the role of miR-26a-5p in myocardial I/R injury has not yet been reported. We established an I/R injury model in vitro and in vivo. In vitro, we used cardiomyocytes to simulate I/R injury using hypoxia/reoxygenation (H/R) assay. In vivo, we used C57BL/6 mice to construct I/R injury model. The infarct area was examined by TTC staining. The level of miR-26a-5p and PTEN was determined by bioinformatics methods, qRT-PCR, and western blot. In addition, the viability and apoptosis of cardiomyocytes were separately detected by MTT and flow cytometry. The targeting relationship between miR-26a-5p and PTEN was analyzed by the TargetScan website and luciferase reporter assay. I/R and H/R treatment induced myocardial tissue injury and cardiomyocyte apoptosis, respectively. The results showed that miR-26a-5p was down-regulated in myocardial I/R injury. PTEN was found to be a direct target of miR-26a-5p. Furthermore, miR-26a-5p effectively improved viability and inhibited apoptosis in cardiomyocytes upon I/R injury by inhibiting PTEN expression to activate the PI3K/AKT signaling pathway. miR-26a-5p could protect cardiomyocytes against I/R injury by regulating the PTEN/PI3K/AKT pathway, which offers a potential approach for myocardial I/R injury treatment.


Subject(s)
Animals , Rabbits , Myocardial Reperfusion Injury/metabolism , Myocardial Ischemia/metabolism , Phosphatidylinositol 3-Kinases/metabolism , Myocytes, Cardiac/pathology , MicroRNAs/metabolism , PTEN Phosphohydrolase/metabolism , Signal Transduction , Blotting, Western , Disease Models, Animal , Proto-Oncogene Proteins c-akt/metabolism , Real-Time Polymerase Chain Reaction , Flow Cytometry , Mice, Inbred C57BL
4.
Biomedical and Environmental Sciences ; (12): 729-739, 2018.
Article in English | WPRIM | ID: wpr-690597

ABSTRACT

<p><b>OBJECTIVE</b>To identify the characteristics of Chinese obesogenic environments at a provincial level, infer a spatial distribution map of obesity prevalence in 31 provinces, and provide a foundation for development of policy to reduce obesity in children and adolescents.</p><p><b>METHODS</b>After scanning obesity data on subjects aged 7-17 years from 12 provinces in the China Health and Nutrition Survey 2011 and environmental data on 31 provinces from the China Statistical Yearbook 2011 and other sources, we selected 12 predictors. We used the 12 surveyed provinces as a training sample to fit an analytical model with partial least squares regression and prioritized the 12 predictors using variable importance in projection. We also fitted a predictive model with Bayesian analysis.</p><p><b>RESULTS</b>We identified characteristics of obesogenic environments. We fitted the predictive model with a deviance information criterion of 61.96 and with statistically significant (P < 0.05) parameter estimates of intercept [95% confidence interval (CI): 329.10, 963.11], log(oil) (CI: 13.11, 20.30), log(GDP) (CI: 3.05, 6.93), log(media) (CI: -234.95, -89.61), and log(washing-machine) (CI: 0.92, 5.07). The total inferred average obesity prevalence among those aged 7-17 was 9.69% in 31 Chinese provinces in 2011. We also found obvious clustering in occurrences of obesity in northern and eastern provinces in the predicted map.</p><p><b>CONCLUSION</b>Given complexity of obesity in children and adolescents, concerted efforts are needed to reduce consumption of edible oils, increase consumption of vegetables, and strengthen nutrition, health, and physical activity education in Chinese schools. The northern and eastern regions are the key areas requiring intervention.</p>

5.
Chinese Medical Journal ; (24): 2491-2496, 2016.
Article in English | WPRIM | ID: wpr-307387

ABSTRACT

<p><b>BACKGROUND</b>Robust statistical designing, sound statistical analysis, and standardized presentation are important to enhance the quality and transparency of biomedical research. This systematic review was conducted to summarize the statistical reporting requirements introduced by biomedical research journals with an impact factor of 10 or above so that researchers are able to give statistical issues' serious considerations not only at the stage of data analysis but also at the stage of methodological design.</p><p><b>METHODS</b>Detailed statistical instructions for authors were downloaded from the homepage of each of the included journals or obtained from the editors directly via email. Then, we described the types and numbers of statistical guidelines introduced by different press groups. Items of statistical reporting guideline as well as particular requirements were summarized in frequency, which were grouped into design, method of analysis, and presentation, respectively. Finally, updated statistical guidelines and particular requirements for improvement were summed up.</p><p><b>RESULTS</b>Totally, 21 of 23 press groups introduced at least one statistical guideline. More than half of press groups can update their statistical instruction for authors gradually relative to issues of new statistical reporting guidelines. In addition, 16 press groups, covering 44 journals, address particular statistical requirements. The most of the particular requirements focused on the performance of statistical analysis and transparency in statistical reporting, including "address issues relevant to research design, including participant flow diagram, eligibility criteria, and sample size estimation," and "statistical methods and the reasons."</p><p><b>CONCLUSIONS</b>Statistical requirements for authors are becoming increasingly perfected. Statistical requirements for authors remind researchers that they should make sufficient consideration not only in regards to statistical methods during the research design, but also standardized statistical reporting, which would be beneficial in providing stronger evidence and making a greater critical appraisal of evidence more accessible.</p>


Subject(s)
Bibliometrics , Biomedical Research , Guideline Adherence , Periodicals as Topic
6.
Biomedical and Environmental Sciences ; (12): 214-218, 2015.
Article in English | WPRIM | ID: wpr-264598

ABSTRACT

Liver cancer is a common and leading cause of cancer death in China. We used the cancer registry data collected from 2009 to 2011 to describe the spatial distribution of liver cancer incidence at village level in Shengqiu county, Henan province, China. Spatial autocorrelation analysis was employed to detect significant differences from a random spatial distribution of liver cancer incidence. Spatial scan statistics were used to detect and evaluate the clusters of liver cancer cases. Spatial clusters were mapped using ArcGIS 10.0 software in order to identify their physical location at village level. High cluster areas of liver cancer incidence were observed in 26 villages of 7 towns and low cluster areas were observed in 16 villages of 4 towns. High cluster areas of liver cancer incidence were distributed along the Sha Ying River which is the largest of tributary of the Huai River. Role of water pollution in Shenqiu County where the high cluster was found deserves further investigation.


Subject(s)
Humans , China , Epidemiology , Cluster Analysis , Incidence , Liver Neoplasms , Epidemiology
7.
Chinese Journal of Oncology ; (12): 192-195, 2012.
Article in Chinese | WPRIM | ID: wpr-335315

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the influence of ICAM-1 469K/E gene polymorphisms on the risk of atrophic gastritis and dysplasia.</p><p><b>METHODS</b>The ICAM-1 469K/E gene polymorphisms in a total of 372 subjects were detected by polymerase chain reaction-direct sequencing. All of the subjects were from Linqu County, a high risk area of gastric cancer in Shandong Province of northern China. All cases were initially diagnosed as normal or superficial gastritis at the beginning of this study. After a 5-year follow-up, the cases were subdivided into no progression group (no histological progression, n=137), progression group I (progressed to severe chronic atrophic gastritis, n=194) and progression group II (progressed to low-grade dysplasia, n=41).</p><p><b>RESULTS</b>In all 372 subjects, the frequencies of KK, KE or EE genotype of ICAM-1 K469E were 50.5%, 39.2% and 10.2%, respectively. No significant differences were observed in the ICAM-1 469K/E genotype frequencies between the progression group I and no progression group (P>0.05). The frequencies of KK genotype (68.3%) were significantly higher in the progression group II than in the no progression group (49.6%, P=0.035), and also than in the progression group I (47.4%, P=0.015). An increased risk of the progressing to dysplasia from normal or superficial gastritis was found in the individuals with ICAM-1 469KK genotype [odds ratio (OR)=2.21, 95%CI, 1.10-4.42].</p><p><b>CONCLUSION</b>ICAM-1 469K/E gene polymorphisms are significantly associated with the risk of gastric low-grade dysplasia, but not related with severe chronic atrophic gastritis in a population with high risk of gastric cancer in Linqu County, Shandong Province, China.</p>


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Follow-Up Studies , Gastritis , Genetics , Pathology , Gastritis, Atrophic , Genetics , Pathology , Genotype , Intercellular Adhesion Molecule-1 , Genetics , Odds Ratio , Polymorphism, Genetic , Precancerous Conditions , Genetics , Pathology , Risk , Stomach Neoplasms , Genetics , Pathology
8.
Chinese Journal of Epidemiology ; (12): 1079-1082, 2012.
Article in Chinese | WPRIM | ID: wpr-289578

ABSTRACT

To compare the designing effects (DE) among different complex sampling designing programs.Data from the ‘2002 Chinese Nutrition and Health Survey' was used as an example to generate the sampling population,and statistical simulation method was used to estimate the values of DEs from six complex sampling designing programs.It was found that the values of DEs varied among the six complex sampling designing programs.The values of the DEs were associated with the sample sizes in a positive way,with more sample stages and less stratified categories.Reduction of the numbers of sample stages and detailing stratified categories could decrease the DE values so as to improve the DE.

9.
Chinese Journal of Preventive Medicine ; (12): 87-89, 2007.
Article in Chinese | WPRIM | ID: wpr-290187

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the associations of serum gastrin-17 (G-17) concentration with helicobacter pylori (Hp) infection.</p><p><b>METHODS</b>A (13)C-urea breath and ELISA test to determine the Helicobacter pylori status and to detect the serum gastrin concentration was conducted in 242 villagers in Linqu of Shandong Province, a high gastric cancer prevalence area in China.</p><p><b>RESULTS</b>Of 242 subjects, 65 of 111 were found Hp-positive in males (58.56%), compared with 65 of 131 in females (49.62%) (chi(2) = 1.932, P = 0.165). The statistical difference was not observed among different age groups (chi(2) = 4.185, P = 0.123). The average level of G-17 among 242 subjects was (24.43 +/- 25.46) pmol/L and it was statistically higher in females (29.87 +/- 28.18) pmol/L than that in males (18.01 +/- 20.11) pmol/L (Z = -3.618, P < 0.001). However, there was no statistical difference found among age groups (chi(2) = 1.948, P = 0.378). The G-17 level in Hp-negative group (35.50 +/- 30.92) pmol/L was observed significantly higher than in Hp-positive group (14.90 +/- 13.79) pmol/L (Z = 5.368, P = 0.0001).</p><p><b>CONCLUSION</b>The G-17 concentration was found higher in Hp-negative subjects than in Hp-positive subjects, and higher in female than in male, but no difference was found among age groups.</p>


Subject(s)
Adult , Female , Humans , Male , Middle Aged , China , Epidemiology , Gastrins , Blood , Helicobacter Infections , Blood , Epidemiology , Helicobacter pylori , Rural Population , Sampling Studies
10.
Chinese Journal of Emergency Medicine ; (12)2006.
Article in Chinese | WPRIM | ID: wpr-683475

ABSTRACT

Objective To find a better composition substitution fluid for continuous venovenous hemofiltration (CWH) comparing with the Port's composition substitution fluid,and to evaluate its efficiency and prognosis on patients with dysfunction of glycometabolism and multiple organ dysfunction syndrome (MODS) caused by trauma. Method Totol of 134 patients in the Firist Affiliated Hospotal of the Fourth Miliatary Medicial University,with glycometabolism dysfunction and MODS caused by trauma between Janurary 2001 and December 2006 were treated with CVVH.They were divided into two groups:the Port's composition substitution fluid which glucose concentration was 59.1 mmoL/L (group A,59 cases) and the new substitution fluid which glucose concentration is 11.8 mmol/L (group B,75 cases).The changes of electrolytes,arterial blood gas analysis,blood glucose and osmolarity during CVVH were observed.Results The mortality in group A was significantly higher than that in group B (64.4 % vs 40.0 %,P = 0.005).Before treated with CVVH,there was no significant differences of APACHEⅡscores between group A and group B.Either in the survival patients or in non-survivors,the APACHEⅡscores in group B were significantly higher than that in group A (P

11.
Chinese Journal of Emergency Medicine ; (12)2006.
Article in Chinese | WPRIM | ID: wpr-683419

ABSTRACT

1 ml/kg)and the ICU stay.Results The hospital mortality of AKI phaseⅢwas significantly higher than that of AKI phaseⅠorⅡ(P

12.
Chinese Journal of Preventive Medicine ; (12): 405-408, 2006.
Article in Chinese | WPRIM | ID: wpr-290251

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the trend of total cancer mortality in Linqu County Shandong Province from 1980 to 2002.</p><p><b>METHODS</b>A retrospective survey on all causes of death in 1980 - 1982, 1990 - 1992 and 2000 - 2002 was conducted in Linqu County, a high risk area of gastric cancer in Northeast of China, respectively.</p><p><b>RESULTS</b>The cancer death, was found the third leading cause of death in 1980 - 1982 in Linqu County, and the second to that of vascular disease in 2000 - 2002. The cancer mortality (standardized mortality) was 108.97/100,000 (111.48/100,000), 132.38/100,000 (127.94/100,000) and 148.48/100,000 (105.53/100,000) in 1980 - 1982, 1990 - 1992 and 2000 - 2002, respectively. The trend of cancer mortality was significantly increased (Z = 13.42, P < 0.0001). The added cancer-eliminated life expectancy in three periods was 2.46 years, 3.29 years and 3.76 years in male (F = 13.99, P < 0.0001), and 1.67 years, 2.30 and 2.33 years in female (F = 13.61, P < 0.0001), respectively. The standardized mortality of gastric cancer (percentage in all cancer death) was 44.93/100,000 (40.29%), 41.37/100,000 (32.34%) and 27.73/100,000 (26.90%) in 1980 - 1982, 1990 - 1992 and 2000 - 2002, respectively. The trend of gastric cancer standardized mortality was significantly reduced (Z = 6.35, P < 0.01).</p><p><b>CONCLUSION</b>The mortality of cancer in Linqu County has been increased from 1980 to 2002, but no such trend was found after adjusting ages. However, there was a decreased trend on standardized mortality of gastric cancer in the past 20 years.</p>


Subject(s)
Female , Humans , Male , China , Epidemiology , Mortality , Neoplasms , Epidemiology , Mortality , Retrospective Studies , Stomach Neoplasms , Epidemiology , Mortality , Survival Rate
13.
Chinese Journal of Epidemiology ; (12): 328-331, 2005.
Article in Chinese | WPRIM | ID: wpr-331884

ABSTRACT

<p><b>OBJECTIVE</b>To study the status and influencing factors on sleep quality in some medical college students.</p><p><b>METHODS</b>Stratified sampling, pittsburgh sleep quality index (PSQI), self-evaluation depression scale (SDS), self-evaluation anxiety scale (SAS) and self-developed questionnaire of influencing factors on the quality of sleep in medical college students were used. Cumulative odds logistic model was performed to analyze the related factors on the quality of sleep.</p><p><b>RESULTS</b>19.17 percent of the medical college students showed poor quality of sleep and the difference between genders was not statistically significant (P > 0.05). Statistically significant (P < 0.05) difference was seen among different years of students and correlation was found between sleep quality and depression or anxiety (P < 0.0001). Factors influencing on the quality of sleep in medical college students would include: worry of sleep, irregular work/rest, worry on examination, stress, relationship with classmates, self-evaluated health condition, environments of the dormitory and late to bed.</p><p><b>CONCLUSION</b>Influencing factors were identified and comprehensive measures should be taken to improve the quality of sleep.</p>


Subject(s)
Adult , Female , Humans , Male , China , Epidemiology , Sleep , Physiology , Sleep Wake Disorders , Epidemiology , Students, Medical , Surveys and Questionnaires
14.
Chinese Medical Journal ; (24): 627-632, 2005.
Article in English | WPRIM | ID: wpr-250871

ABSTRACT

<p><b>BACKGROUND</b>Human urate anion exchanger (hURAT1) as a major urate transporter expressed on renal tubular epithelial cells regulates blood urate level by reabsorbing uric acid. Antibody is an important tool to study hURAT1. This study aimed, by genetic immunization, to produce mouse anti-hURAT1 polyclonal antibody with high throughput and high specificity and to detect the location of hURAT1 in human kidney.</p><p><b>METHODS</b>Human renal total RNA was isolated and the entire cDNA of hURAT1 was amplified by RT-PCR. The sequence of intracellular high antigenicity fragment (A280 to R349) was chosen by prediction software of protein antigenicity, and its cDNA was amplified from cDNA of hURAT1, and then cloned into pBQAP-TT vector to construct recombinant plasmid pBQAP-TT-hURAT1-210 for genetic immunization. Mice were inoculated with this recombinant plasmid and two other adjuvant plasmids, pCMVi-GMCSF and pCMVi-Flt3L, which helped to enhance the antibody's generation. After four weeks, the mice were sacrificed to obtain the anti-hURAT1 antibody from serum. The antibody was identified by western blot analysis and immunohistochemistry. At the same time, rabbit anti-hURAT1 antibody was produced by protein immunization. The specificity and efficiency between the rabbit and mouse anti-hURAT1 antibody were compared by western blot analysis and immunohistochemistry.</p><p><b>RESULTS</b>The entire cDNA of hURAT1 and cDNA of its intracellular high immunogenic fragment were amplified successfully. Recombinant plasmid pBQAP-TT-hURAT1-210 for genetic immunization was confirmed by restriction digestion and sequencing. Both the mouse anti-hURAT1 antibody and rabbit anti-hURAT1 antibody recognized 58 kD hURAT1 and 64 kD glycosylated hURAT1 protein bands in western blot. Immunohistochemically, hURAT1 was located at the brush border membrane of renal proximal tubular cells. In addition, the throughput and specificity of the mouse anti-hURAT1 antibody were higher than those of the rabbit anti-hURAT1 antibody.</p><p><b>CONCLUSION</b>Genetic immunization can generate anti-hURAT1 polyclonal antibody of high throughput and specificity.</p>


Subject(s)
Animals , Female , Humans , Male , Mice , Rabbits , Antibodies , Blotting, Western , Carrier Proteins , Allergy and Immunology , Immunization , Immunohistochemistry , Kidney , Chemistry , Organic Anion Transporters , Allergy and Immunology , Organic Cation Transport Proteins , Plasmids
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