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1.
Chinese Journal of School Health ; (12): 60-65, 2024.
Artigo em Chinês | WPRIM | ID: wpr-1007266

RESUMO

Objective@#To systematically evaluate the effect of mini basketball on children s upper limb strength in China, and to provide basis for the development of kindergarten mini basketball and the improvement of children s upper limb strength performance.@*Methods@#CNKI, Wanfang Data, VIP, PubMed, and Web of Science databases were searched from the establishment of the database to July 26, 2023. The PICOST model was used for literature screening, and 13 literature with a total of 20 studies were finally included. The Cochrane System Evaluation Criteria was used for literature quality evaluation. Review Manager 5.4 and Stata 17 were used for statistical analysis and publication bias test.@*Results@#A total of 939 children were included in 20 studies, including 470 in the experimental group and 469 in the control group. Meta analysis showed that mini basketball had an extremely significant effect on the improvement of children s upper limb strength ( SMD=0.83, 95%CI=0.53-1.13, Z=5.40, P < 0.01 ). The results of subgroup analysis showed that there was no significant gender difference in the improvement of children s upper limb strength by mini basketball ( P >0.05), mini basketball exercise with an intervention time of less than or equal to 30 minutes ( SMD=0.49, 95%CI=0.29-0.70, Z=4.70, P <0.01) and an exercise cycle of more than 12 weeks ( SMD=1.25, 95%CI=0.54-1.96, Z= 3.45 , P<0.01) can achieve a better intervention effect on the upper limb strength of children. Meta regression results showed that the exercise intervention time was the main source of heterogeneity ( t=2.71, 95%CI= 1.38-22.93, P <0.05). Egger s test showed that the publication bias of the included studies was not statistically significant ( t=0.78, P >0.05).@*Conclusions@#Mini basketball training can improve the upper limb strength of children, but there is no significant gender difference. The upper limb strength is affected by the restriction of intervention time and exercise cycle. Schools can appropriately add small basketball in physical education classes to improve children s upper limb strength.

2.
Journal of Preventive Medicine ; (12): 628-631, 2023.
Artigo em Chinês | WPRIM | ID: wpr-980045

RESUMO

Objective@# To analyze the death among children under 5 years of age in Huzhou City, Zhejiang Province from 2012 and 2021, so as to provide insights into reduction of mortality among children. @*Methods@#The mortality surveillance data among children under 5 years of age in Huzhou City from 2012 to 2021 were collected from Children Death Report Cards and Surveillance Report among Children under 5 Years of Age, including gender, place of residence, date of death and death diagnosis. The trends in mortality and cause of death were analyzed among children under 5 years of age in Huzhou City from 2012 to 2021.@*Results@#A total of 1 262 deaths occurred among children under 5 years of age in Huzhou City from 2012 to 2021, with mean annual mortality of 4.39‰, and the mortality appeared a tendency towards a decline (χ2trend=132.695, P<0.001). A total of 899 infants died, with mean annual mortality of 3.13‰, and 363 children at ages of 1 to <5 years died, with mean annual mortality of 1.26‰. The mortality appeared a tendency towards a decline among both infants (χ2trend=117.778, P<0.001) and children at ages of 1 to <5 years (χ2trend=19.201, P<0.001). A total of 724 local children died, with mean annual mortality of 3.33‰, and there were 538 deaths among floating children, with mean annual mortality of 7.65‰. The mortality appeared a tendency towards a decline among both local (χ2trend=43.728, P<0.001) and floating children (χ2trend=94.038, P<0.001). The five most common causes of death included preterm birth or low birth weight (207 deaths, 16.40%), drowning (155 deaths, 12.28%), accidental asphyxia (138 deaths, 10.94%), other congenital abnormalities (126 deaths, 9.98%), and congenital heart diseases (113 deaths, 8.95%). @*Conclusions @#The mortality appeared a tendency towards a decline among children under 5 years of age in Huzhou City from 2012 to 2021, and preterm birth or low birth weight was the predominant cause of death.

3.
China Tropical Medicine ; (12): 947-2022.
Artigo em Chinês | WPRIM | ID: wpr-979973

RESUMO

@#Abstract: Objective To evaluate the effects of sunitinib on Japanese encephalitis virus (JEV) infection in vitro and vivo. Methods The 4-week-old BALB/c mice infected with JEV by intraperitoneal injection. The infected mice were treated with sunitinib for 5 days and 10 days respectively. After that, the change of weight and survival rate were evaluated continuously. The viral load variation in mice brain were detected by qRT-PCR. Indirect immunohistochemical staining assay (IFA) was used to detect the number and distribution of CD4+/CD8+T cells in mouse brain. IFA was also used to observe the expression of virus E protein in the brain of mice. Vero cells were infected with JEV in vitro and given a certain concentration of sunitinib to observe the cell survival status. The expression of virus E protein in cells was detected by IFA. Results Continuous administration of sunitinib significantly improved the survival rate of infected mice. Survival rate and body weight changes showed that the 5-day's administration strategy was significantly better than the 10-day's administration strategy. The treatment of sunitinib decreased the infiltration of CD4+/CD8+T cells in the brain and reduced the changes of vascular sleeve. However, the variation of viral load and E protein expression in brain were not obvious. The cytopathic effect (CPE) of infected Vero cells were slightly relieved after giving sunitinib, and the expression of E protein was also slightly changed. Conclusion Sunitinib can significantly reduce the mortality of infected mice, and the 5-day's administration strategy is significantly better than the 10-day's administration strategy. Sunitinib decrease T lymphocyte infiltration in brain of mice, relieve the encephalitis symptoms ,and prolonged the life of mice.

4.
China Occupational Medicine ; (6): 657-661, 2022.
Artigo em Chinês | WPRIM | ID: wpr-976093

RESUMO

@#Objective To investigate the effects of mercury on T lymphocytes and serum immune indexes of workers with Methods occupational mercury exposure. A total of 45 workers with occupational mercury exposure were selected as the , mercury exposure group and 47 workers without occupational mercury exposure were selected as the control group using the judgment sampling method. Cold atomic absorption spectrometry was used to detect the urinary mercury level of the two groups. ( ) +, + +, + + - + Flow cytometry was used to detect the proportion of cluster of differentiation CD 3 CD3CD4 CD3CD8 and CD3CD19 , - ( - ) - ( - ) cells in peripheral blood and the levels of tumor necrosis factor α TNF α and interleukin 8 IL 8 in serum. The levels of ( ) , Results immunoglobulin Ig A IgG and IgM in serum were measured by immune nephelometry. The urinary mercury level of ( : vs ,P ) individuals in the mercury exposed group was higher than that of the control group median 92.7 13.2 μg/g Cr <0.01 . The +, + +, - + proportion of CD3 CD3CD4 CD3CD19 cells in peripheral blood and serum IgG level in the mercury exposed group ( P ), - - ( P ) decreased all <0.05 and the serum TNF α and IL 8 levels increased all <0.01 compared with the control group. Urinary - + mercury level was negatively correlated with the proportion of CD3CD19 cells in peripheral blood and serum IgG level in the [ (r) , , P ], study subjects Spearman correlation coefficient S were −0.21 and −0.31 respectively all <0.05 and positively - - (r , , P ) , correlated with serum TNF α and IL 8 levels S were 0.36 and 0.39 respectively all <0.05 . However the urinary mercury ( P ), +, + +, level was neither correlated with IgA and IgM levels in serum all >0.05 nor with the proportion of CD3 CD3CD4 + + ( P ) Conclusion CD3CD8 cells in peripheral blood all >0.05 . Occupational exposure to mercury can lead to abnormal , changes in peripheral blood T lymphocyte subsets B lymphocytes and serum immune factors in workers. The mercury load of occupational mercury exposure workers may impact their immune function.

5.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 86-90, 2019.
Artigo em Chinês | WPRIM | ID: wpr-802203

RESUMO

Objective:To compare the contents of alkaloids from fine and ultrafine powder of Dendrobium nobile stem in rat plasma,and investigate the effect of D. nobile stem with different particle sizes on gene expression of intestinal transporters. Method:Rats were randomly divided into the blank group,fine powder group of D. nobile stem(0.25 g·kg-1) and ultrafine powder group of D. nobile stem(0.25 g·kg-1).The rats were gavaged every 6 h for 5 days.The samples of rat plasma and small intestine were collected.The plasma samples were detected with UPLC-MS.The chromatography separation was performed on a Hypersil Gold C18 column(2.1 mm×150 mm,1.9 μm) with acetonitrile-0.1%formic acid solution as mobile phase for gradient elution.Electrospray ionization (ESI) was applied and operated in positive ion mode.The mRNA expression of multidrug resistance protein 1(MDR1),oligopeptide transporter protein 1(PEPT1),organic cation transporter protein 2(OCT2),breast cancer resistance protein 1(BCRP1),monocarboxylate transport protein 1(MCT1) and multidrug resistance related protein 2(MRP2) in small intestine were quantified by real time fluorescence quantitative polymerase chain reaction. Result:After intragastric administration of fine and ultrafine powder of D. nobile stem,dendrobine,mubironine B and dendramine could be detected in rat plasma.The contents of dendrobine and dendramine in the ultrafine powder group were significantly higher than that in the fine powder group(PD. nobile stem(PPD. nobile stem(PConclusion:Compared with the fine powder group of D. nobile stem,the plasma concentrations of dendrobine and dendramine in the ultrafine powder group are significantly increased,it may be related to the intestinal transporters of MDR1 and BCRP1.These results can provide experimental basis for selecting particle size of D. nobile stem.

6.
International Eye Science ; (12): 2055-2059, 2017.
Artigo em Chinês | WPRIM | ID: wpr-669226

RESUMO

Retinalvein occlusion (RVO) is the most common retinal vascular disease.The main causes of visual impairment and blindness are macular edema and retinal neovascularization.Drug therapies are the effective and safe method in the treatment of RVO currently.The main drugs conclude corticosteroid drugs,anti-vascular endothelial growth factor drugs,thrombolytic drugs and traditional drugs.This article reviews the recent progress in RVO in order to provide some valuable references for clinical treatment.

7.
Journal of Southern Medical University ; (12): 751-755, 2016.
Artigo em Chinês | WPRIM | ID: wpr-263967

RESUMO

<p><b>OBJECTIVE</b>To investigate the expression of p16INK4a protein in breast cancer and analyze its clinical significance.</p><p><b>METHODS</b>A total of 132 surgical specimens of primary breast cancer obtained between 2014 and 2015 were examined for expressions of ER, PR, CK5/6, Her-2 and p16INK4a proteins using immunohistochemistry.</p><p><b>RESULTS</b>The breast cancer samples were classified into 5 molecular subtypes, namely Luminal A (58 cases), Luminal B (32 cases), Her-2-positive (21 cases), basal-like (12 cases) and normal-like (9 cases) types. p16INK4a expression was negative in 7/132 (5.30%) cases, weakly positive in 15/132 (11.36%) cases, positive in 40/132 (30.30%) cases, and strongly positive in 70/132 (53.03%) cases. When categorizing negative and weakly positive cases into negative group and the positive and strongly positive cases into positive group, the total negative and positive expression rates of p16INK4a were 16.67% (22/132) and 83.33% (110/132) in the carcinoma tissues. Statistical analysis showed the expression intensity of p16INK4a differed significantly between the age groups (P<0.05) but was not significantly correlated with ER, PR, Her-2, molecular subtypes or metastasis of the tumors.</p><p><b>CONCLUSION</b>The compensatory high expression of p16INK4a is the main mechanism of cell cycle deregulation in invasive breast cancer and can be an important specific molecular marker for invasive breast cancer.</p>


Assuntos
Feminino , Humanos , Biomarcadores Tumorais , Metabolismo , Neoplasias da Mama , Classificação , Diagnóstico , Metabolismo , Inibidor p16 de Quinase Dependente de Ciclina , Metabolismo , Queratina-5 , Metabolismo , Queratina-6 , Metabolismo , Receptor ErbB-2 , Metabolismo , Receptores de Estrogênio , Metabolismo , Receptores de Progesterona , Metabolismo
8.
China Journal of Orthopaedics and Traumatology ; (12): 929-931, 2010.
Artigo em Chinês | WPRIM | ID: wpr-344695

RESUMO

<p><b>OBJECTIVE</b>To evaluate the effect of interferential electrical stimulation (IES) in pain relief after spine surgery.</p><p><b>METHODS</b>From January 2004 to December 2008, 166 patients after spine operation received pain treatment. All the patients were divided into two groups: the drug treatment group, which was the control group, including 46 cases, 22 patients were male and 24 patients were female, with an average age of (51.0 +/- 6.5) years; and the IES treatment group, including 120 cases, 50 patients were male and 70 patients were female, with an average age of (48.0 +/- 5.6) years. Before treatment, there were 4 patients with pain of Grade III in the control group, in which 3 patients had stenosis, 1 patient had spondylolisthesis; 42 patients had Grade II pain. In the IES group before treatment,17 patients had Grade II pain, in which 13 patients had stenosis, 4 patients had spondylolisthesis; 103 patients had Grade II pain. The preoperative and postoperative pains were evaluated and compared by the WHO Pain Criteria.</p><p><b>RESULTS</b>The composing of IES group with pain grade III, II and I were 1/96/23, 0/17/103, 0/0/ 120 at the 3rd day, the 7th day and the 14th day after treatment respectively, while in the control group they were 4/42/0, 2/ 44/0, 0/4/42 respectively. There were statistical differences between the two groups with Kruskal-Wallis test. The percent of mid and severe grade pain decreased much faster in IES group.</p><p><b>CONCLUSION</b>Interferential electrical stimulation (IES) therapy can improve patients' postoperative pain relief more quickly and reduce duration of hospitalization.</p>


Assuntos
Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos de Casos e Controles , Terapia por Estimulação Elétrica , Dor Pós-Operatória , Reabilitação , Estudos Retrospectivos , Coluna Vertebral , Cirurgia Geral
9.
Chinese Journal of Otorhinolaryngology Head and Neck Surgery ; (12): 640-644, 2010.
Artigo em Chinês | WPRIM | ID: wpr-276412

RESUMO

<p><b>OBJECTIVE</b>To study the clinical pathology and treatments on the pseudocyst of auricle.</p><p><b>METHODS</b>Sixty cases of auricular pseudocyst were treated by surgery from 1993 to 2008 in our hospital. Their operation effects and the clinic pathological features were analyzed.</p><p><b>RESULTS</b>The clinic pathological data showed that the source of serous effusion of auricular pseudocyst origin from cartilage membrane in the top wall. In the early stage of the cyst, the top wall of auricular pseudocyst was the cartilage membrane. With the course progresses, the cartilage membrane in the top wall of auricular pseudocyst was proliferating, thickened and generated new cartilage. The new cartilage was formed from small piece to the big one, and eventually became an entire new cartilage on the top wall of auricular pseudocyst. Serous effusion at this time was terminated, and this cyst became intra-cartilaginous effusion of auricle. Finally the fluid between cartilages was absorbed and organized. In the cyst, the new cartilage and auricle cartilage were organized and adhered together each other. The auricle became thickened and deformed. The observation of capsule wall under light microscope showed that there were a few fibrous desmoplasia, anapetia and lymphocyte infiltrating in the fibrous tissue, as well as that there were cartilage cell layers from firmness to thicker. The cartilage cells and their lacunes were small, and the cartilage capsule and the basilaris substantia was showed as eosin. This data indicated that the cartilage was neogenesis but not degenerating. Sixty patients were followed up from 3 months to 1 year. The effect of surgical treatment for the auricular pseudocyst was satisfactory. There was no auricular deformation in these patients with the operation.</p><p><b>CONCLUSIONS</b>Auricular pseudocyst can be divided into the early period (acute exudative period), the medium period (cartilage formation period) and the late period (proliferative and organized period). The treatment should be based on the pathological findings of auricular pseudocyst. The operation is easy, safe and reliable. The key of the operation is the complete removal of perichondrium and cartilage at the top of auricular pseudocyst.</p>


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Cistos , Patologia , Cirurgia Geral , Pavilhão Auricular , Otopatias , Patologia , Cirurgia Geral
10.
Chinese Journal of Plastic Surgery ; (6): 217-221, 2009.
Artigo em Chinês | WPRIM | ID: wpr-328698

RESUMO

<p><b>OBJECTIVE</b>To study muscle atrophy F-box (MAFbx) and muscle ring finger 1 (MuRF1) mRNA expression and its relationship with muscular contraction following free muscle transfer.</p><p><b>METHODS</b>The gracilis muscle was orthotopic transferred in adult rat to establish the animal model. The muscle at the unoperated side was used as control. The expression of MAFbx and MuRF1 mRNA, the muscle contraction and muscle function were measured by real-time PCR and multiple function physiological device. The relationship among the expression of MAFbx and MuRF1 mRNA, the muscle contraction and muscle function was analyzed.</p><p><b>RESULTS</b>After muscle free transfer, muscle wet weight reservation, the maximum contraction and tetanus strength reduce first and increased later, but still lower than those at control side. The expression of MAFbx and MuRF1 mRNA reached peak level 3 - 4 weeks after muscle transfer which was 7.1 and 4.1 times as that at control side. It decreased later, but still higher than that at control side, showing a significant difference between them (P< 0. 05).</p><p><b>CONCLUSIONS</b>Persistent over-expression of MAFbx and MuRF1 mRNA after muscle transfer has a close relationship with muscle atrophy and muscle dysfunction. MAFbx and MuRF1 can be used as markers for early muscle atrophy, and also as potential target for drug treatment of muscle atrophy.</p>


Assuntos
Animais , Feminino , Ratos , Contração Muscular , Proteínas Musculares , Genética , Músculo Esquelético , Patologia , Atrofia Muscular , Genética , Metabolismo , Patologia , Domínios RING Finger , RNA Mensageiro , Genética , Ratos Sprague-Dawley , Proteínas Ligases SKP Culina F-Box , Genética , Proteínas com Motivo Tripartido , Ubiquitina-Proteína Ligases , Genética
11.
Chinese Journal of Preventive Medicine ; (12): 700-704, 2009.
Artigo em Chinês | WPRIM | ID: wpr-316112

RESUMO

<p><b>OBJECTIVE</b>To investigate the correlationship between congenital heart disease and 5, 10-methylenetetra hydrofolate reductase (MTHFR)'s C677T or folacin intakes, and to study the interaction of them in the occurring of congenital heart disease.</p><p><b>METHODS</b>We used case-control study (case = 104, control = 208) method. Cases and controls were chosen by age, sex and other conditions. The MTHFR C677T genotype distribution was analyzed by using polymerase chain reaction restricted fragment length polymorphism (PCR-RFLP), and non-conditional and multi-conditional logistic regression analysis were also used to analyze the correlationship and interaction of the factors.</p><p><b>RESULTS</b>In case group, the number of people in low folacin intake level was 38 (36.54%), which in control group was 21(10.10%). The intake level of folacin during pregnancy was related to congenital heart disease (chi(2) = 31.614, nu = 1, P < 0.0001). The value of OR was 1.417 with 95%CI 1.216 - 1.651, indicating that the low level of folacin intakes was a risk factor to the congenital heart disease. In case group, the number of TT genotype was 46 (44.24%), the number of CT genotype was 42 (40.38%), the number of CC genotype was 16 (15.38%). In control group, the number of TT genotype was 39 (18.75%), the number of CT genotype was 114 (54.81%), the number of CC genotype was 55 (26.44%). A significant genotype distribution difference was identified between case and control group (chi(2) = 23.13, nu = 2, P < 0.0001). Genotype MTHFR 677TT was a risk factor of congenital heart disease and the OR value was 3.437 (95%CI: 2.042 - 5.784). The interaction analysis suggested that the low level of folacin intakes and the MTHFR 677TT genotype had a positive adding effect in the occurring of congenital heart disease. After adjusted some factors such as the ages of parents, fetus age and sex, the effect values of interaction were 13.343 and 15.911 respectively, and the percentages of attributable interaction effects were 0.619 and 0.612. The percentages of effect values of interaction between pure factors were 0.649 and 0.637 and the population attributable risks were 25.26% and 27.82% according to the estimated exposure rate of population risk factors.</p><p><b>CONCLUSION</b>The low level of folacin intakes during pregancy should be a risk factor to congenital heart disease and the MTHFR 677TT genotype be correlated to congenital heart disease. There is interaction between folacin intakes and the MTHFR 677TT genotype. Increasing the intakes of folacin among MTHFR 677TT genotype people might decrease the incidence rate of congenital heart disease.</p>


Assuntos
Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Gravidez , Estudos de Casos e Controles , Ácido Fólico , Metabolismo , Frequência do Gene , Predisposição Genética para Doença , Genótipo , Cardiopatias Congênitas , Genética , Metabolismo , Metilenotetra-Hidrofolato Redutase (NADPH2) , Genética , Polimorfismo de Nucleotídeo Único , Fatores de Risco
12.
Journal of Southern Medical University ; (12): 1485-1488, 2007.
Artigo em Chinês | WPRIM | ID: wpr-283103

RESUMO

<p><b>OBJECTIVE</b>To investigate the association of 86 bp variable number tandem repeat (VNTR) polymorphism of interleukin-1 receptor antagonist (IL-1Ra) gene with lumbar disc disease and intervertebral disc degeneration.</p><p><b>METHODS</b>The 86 bp VNTR polymorphism of IL-1Ra gene was analyzed with PCR and electrophoresis for 81 patients with lumbar disc disease and 101 volunteers without sciatica (control). The grade of intervertebral disc degeneration was determined with magnetic resonance imaging, and the association of 86 bp VNTR polymorphisms with lumbar disc disease and intervertebral disc degeneration in those younger than 45 years was assessed.</p><p><b>RESULTS</b>The presence of 86bp VNTR polymorphisms of IL-1Ra gene was detected in both patients with lumbar disc disease and the control subjects. The distribution of 86 bp VNTR polymorphisms of IL-1Ra gene showed no significant difference between the two groups, but the distributions of 1/1, 1/2 and 2/2 or 1, 2 genotypes differed significantly. The current data did not support a significant association between the distribution of IL-1Ra gene 86bp VNTR polymorphism and lumbar disc degeneration.</p><p><b>CONCLUSIONS</b>IL-1Ra gene 86bp VNTR polymorphism is present among Chinese population in association with lumbar disc disease, but not with lumbar disc degeneration.</p>


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Povo Asiático , Genética , Estudos de Casos e Controles , Estudo de Associação Genômica Ampla , Proteína Antagonista do Receptor de Interleucina 1 , Genética , Degeneração do Disco Intervertebral , Genética , Repetições Minissatélites , Polimorfismo Genético , Doenças da Coluna Vertebral , Genética
13.
Chinese Journal of Medical Genetics ; (6): 338-340, 2007.
Artigo em Chinês | WPRIM | ID: wpr-247320

RESUMO

<p><b>OBJECTIVE</b>To explore the polymorphisms of vitamin D receptor (VDR) gene Tru I polymorphisms and the influence of this variation on Bsm I polymorphisms in Han nationality.</p><p><b>METHODS</b>Venous blood samples from 80 healthy individuals of Han nationality were collected and genomic DNA was extracted, VDR Bsm I and Tru I were tested by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) to analyze the polymorphisms of VDR gene; After using another primers to test VDR Bsm I in the same samples, the consistence of each method was assessed.</p><p><b>RESULTS</b>The frequencies of the VDR Tru I genotype in the groups were: TT 68.7%, Tt 26.3%, tt 5.0%; VDR Bsm I were: BB 6.2%, Bb 52.5%, bb 41.3%; Both polymorphisms were under Hardy-Weinberg equilibrium. After using another pair of primer, the frequencies of Bsm I genotype were BB 20.0%, Bb 26.2%, bb 53.8%, 22 genotype Bb changed to genotype BB or genotype bb in comparison with the result of first detection.</p><p><b>CONCLUSION</b>The VDR Tru I polymorphism is found in the Han nationality, the distribution of this site's polymorphism is different from that of other nationalities. The presence of Tru I variation can result in some allele of Bsm I genotype drop-out in some study.</p>


Assuntos
Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Alelos , Povo Asiático , Genética , China , Etnologia , Desoxirribonucleases de Sítio Específico do Tipo II , Metabolismo , Etnicidade , Genética , Genótipo , Polimorfismo Genético , Receptores de Calcitriol , Genética
14.
Chinese Journal of Surgery ; (12): 242-245, 2006.
Artigo em Chinês | WPRIM | ID: wpr-317175

RESUMO

<p><b>OBJECTIVE</b>To analyze the risk factors of heterotopic (HO) ossification after total lumbar disc replacement and probe the preventive strategies for it.</p><p><b>METHODS</b>The radiographs and clinical data of 78 discs in 65 patients who received artificial lumbar disc replacement (ADR) from April 1998 to December 2003 were analyzed retrospectively by two radiologists and one orthopaedic surgeon and then postoperative HO were graded according to McAfee system. The bony formations in disc spaces, time of HO were found, and range of motion (ROM) of the operated levels were measured on radiographic films. In addition, the risk factors such as preoperative peri-annulus ossification, bony endplates injuries, and subsided or mal-position of the prostheses were also analyzed by Logistic regression analysis.</p><p><b>RESULTS</b>Postoperative HO was found in 10 spaces of 9 cases. Class I of HO were occurred in 7 patients at means 2.1 years postoperatively with normal range of motion preserved. Three of them turned into class II or III with 10 degrees of mean ROM in the following 2.5 years. Another 2 (2/9) cases with preoperative peri-annulus ossification had bridging trabecular bone (class III) between the endplates and 9 degrees of ROM 2 years after surgery, then turned into class IV at 6 years with 0 degrees and 4 degrees of motion in the operated levels. As the risk factors of HO, preoperative annulus ossification (2 cases), bony endplates injuries (5 cases), mal-positioned prostheses (2 cases) and subsided prostheses (2 cases) were found simultaneity with significant positive relation to HO occurred (P < 0.05).</p><p><b>CONCLUSIONS</b>Factors such as preoperative ossification of annulus, endplate injuries, prosthesis subsided and mal-position would have higher risks to have HO occurred after ADR, but ROM of most affected levels are preserved. Strict control indication and avoid all above risk factors can prevent HO occurring effectively.</p>


Assuntos
Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Discotomia , Seguimentos , Vértebras Lombares , Cirurgia Geral , Ossificação Heterotópica , Implantação de Prótese , Estudos Retrospectivos , Fatores de Risco
15.
Chinese Journal of Applied Physiology ; (6): 147-151, 2006.
Artigo em Chinês | WPRIM | ID: wpr-254581

RESUMO

<p><b>AIM</b>To investigate the effect of endogenous endothelin-1 (ET-1) on cardiomyocyte apoptosis induced by hypoxia and its possible mechanism.</p><p><b>METHODS</b>Cultured neonatal rat cardiomyocytes were divided into control group and ET receptor antagonist group. Control group was given DMEM only and ET receptor antagonist group was treated with ET receptor subtype A (ET(A)) receptor antagonist BQ610 and BQ123 or ET(B) receptor antagonist BQ788 and subjected to hypoxia for 24 h. The presence of apoptosis in cardiomyocytes was evaluated by TUNEL analysis and flow cytometry (FCM).</p><p><b>RESULTS</b>TUNEL analysis showed that the percentage of positive apoptotic cells in BQ610 5 micromol/L group was 13.2% +/- 3.7%, significantly lower than that in hypoxia group (24.2% +/- 2.2%, P < 0.01). FCM showed that BQ123 (0.04, 0.2 and 1.0 micromol/L) inhibited hypoxia-induced cardiomyocyte apoptosis and increased cardiomyocyte survival rate in a dose-dependent manner, while BQ788 did not show such effects.</p><p><b>CONCLUSION</b>These findings suggest that endogenous ET-1 aggravates hypoxia-induced cardiomyocyte apoptosis and this effect is mediated through ET(A) receptor-dependent pathways.</p>


Assuntos
Animais , Ratos , Animais Recém-Nascidos , Apoptose , Hipóxia Celular , Células Cultivadas , Antagonistas do Receptor de Endotelina A , Antagonistas do Receptor de Endotelina B , Endotelina-1 , Fisiologia , Miócitos Cardíacos , Metabolismo , Patologia , Ratos Sprague-Dawley
16.
Acta Academiae Medicinae Sinicae ; (6): 529-533, 2005.
Artigo em Chinês | WPRIM | ID: wpr-318870

RESUMO

Endothelin can affect the contractile properties of cardiacmyocyte, stimulate myocyte growth and myofibrillogenesis, and increase resistance to apoptosis by intracellular signaling pathways. This article briefly reviews the regulative effects of these signaling pathways including protein kinase C, mitogen activated protein kinase, and phosphoinositide 3'-OH kinase/protein kinase B.


Assuntos
Animais , Humanos , Endotelina-1 , Fisiologia , Endotelinas , Fisiologia , Proteínas Quinases Ativadas por Mitógeno , Metabolismo , Contração Miocárdica , Miócitos Cardíacos , Metabolismo , Fosfatidilinositol 3-Quinases , Metabolismo , Proteína Quinase C , Metabolismo , Transdução de Sinais
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