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1.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-828022

RESUMO

The coronavirus disease 2019(COVID-19) is developing rapidly and posing great threat to public health. There is no effective intervention for the severe patients, and their prognosis is poor. It is worth noting that in the fight against COVID-19, China has always put equal emphasis on both Chinese and Western medicine. Traditional Chinese medicine has played an important role in the whole process. It is of great significance to discuss the rules and characteristics of the prescription of traditional Chinese medicine in the treatment of COVID-19. In this study, information was collected from 444 severe COVID-19 patients who were admitted to a hospital designated to treat patients with severe COVID-19 in Wuhan before March 20, 2020. We collected traditional Chinese medicine prescriptions for patients with severe COVID-19, referred to Chinese Pharmacopoeia to standardize the names of traditional Chinese medicine, and extract the property, flavor and channel tropism of traditional Chinese medicines to analyze the rules of the prescriptions. IBM SPSS Modeler 18.0 software was used to conduct correlation analysis of traditional Chinese medicine. Effective traditional Chinese medicines against COVID-19 was identified by the TCMATCOV platform. In the end, 1 532 effective prescriptions were included. Among them, the high-frequency drugs are Poria, Astragali Radix, Pogostemonis Herba, Armeniacae Semen Amarum, Atractylodis Macrocephalae Rhizoma, Pinelliae Rhizoma, Glycyrrhizae Radix et Rhizoma, Magnoliae Officinalis Cortex, Ephedrae Herba, Cinna-momi Ramulus. Most of the drugs have the following functions: resolving dampness, replenishing deficiency, resolving phlegm, cough, and asthma. The core combinations are Pogostemonis Herba-Poria, Astragali Radix-Pogostemonis Herba-Poria, Amomi Fructus-Poria, Amomi Fructus-Pogostemonis Herba, Amomi Fructus-Astragali Radix. The majority of the medicines are with cold and warm properties, and the proportions are 41.03% and 38.46%, respectively. The medicinal flavors are mainly concentrated in sweet and bitter, and the proportions are 34.71% and 30.58%, respectively. The meridian of the drug is more into the lung, stomach and spleen, with lung accounting for 22.87%. From the analysis of high-frequency drugs to the core combinations, one can see that the main treatment principle for severe COVID-19 is to remove internal and external dampness, protect the spleen and stomach, remove evil energy, and support righteousness. TCMATCOV platform was used to calculate the network disturbances of the high-frequency drugs. It was found that the traditional Chinese medicine with a high disturbance score accounted for a high proportion of the classic anti-COVID-19 prescriptions used by clinicians. Among them, the drugs with top scores are Ephedrae Herba, Citri Reticulatae Pericarpium, Eupatorii Herba, Platycodonis Radix, Cinnamomi Ramulus, Astragali Radix, Magnoliae Officinalis Cortex, Atractylodis Macrocephalae Rhizoma, Pogostemonis Herba, Scutellariae Radix. After a further exploration of the action targets, it was showed that disease-specific factor TNF was the target of the above ten drugs, and traditional Chinese medicine can exert anti-inflammatory and immune-modulating effects.


Assuntos
Humanos , Betacoronavirus , China , Infecções por Coronavirus , Tratamento Farmacológico , Medicamentos de Ervas Chinesas , Medicina Tradicional Chinesa , Pandemias , Pneumonia Viral , Tratamento Farmacológico
2.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-743365

RESUMO

Purpose To investigate the clinicopathological features, the diagnosis and differential diagnosis of spindle cell lipoma/pleomorphic lipoma (SCL/PL). Methods Eight cases of SCL/PL were studied by HE staining and immunohistochemistry. The literature was reviewed. Results Microscopically, the neoplasm consisted of spindle cells, mature adipocytes and thick rope-like collagen bundles in variable proportions with mucinous degeneration. The floret-like multinucleated giant cells were easy to be seen in the pleomorphic lipoma. Immunohistochemical analysis revealed that the tumor cells were positive for CD34 and vimentin. The Ki-67 was approximately 2%. The patients were followed up for 3 ~ 74 months, and no recurrence or metastasis occurred. Conclusion The SCL/PL is a special subtype of benign lipoma, surgery is considered the first choice, and outcome is favorable. The diagnosis and differential diagnosis of SCL/PL are important.

3.
Onco Targets Ther ; 10: 3307-3312, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28740406

RESUMO

Blood biopsy has many advantages over tissue biopsy for diagnosing acquired T790M mutation in patients with non-small-cell lung cancer, such as being less risky and painful. New techniques with high sensitivity (eg, droplet digital PCR) show promising results during blood biopsy, but the positive rates of identification are still quite unclear. Whether there are other factors, except technology, affecting the results of blood biopsy is unclear. In this study, we used conventional amplification refractory mutation system to detect tumor tissue or blood for T790M mutation in patients clinically resistant to tyrosine kinase inhibitors. A total of 45 patients treated at West China Hospital between 2014 and 2016 were analyzed. The positive rate of T790M mutation was 70.8% based on tissue biopsy and 37.5% based on blood biopsy. Of the 24 patients whose epidermal growth factor receptor gene was genotyped through tissue and blood biopsy, 10 (41.7%) were concordant for T790M mutation status (κ=0.006). Of the 17 patients positive for T790M by tissue biopsy, 7 (41.2%) were positive for T790M by blood biopsy, and 3 of these 7 were only weakly positive. Of the 7 patients negative for T790M by tissue biopsy, 2 (28.6%) were positive by blood biopsy. Our T790M detection rate is higher than that reported by other studies using digital droplet PCR. These results suggest that other factors (eg, clinical features), intrinsically connected with circulating tumor DNA level, also affect the results of blood biopsy, and thus cannot be controlled through technological optimization.

4.
Cancer Research and Clinic ; (6): 227-230, 2017.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-609520

RESUMO

Objective To investigate the expression of Gli1 protein in colorectal cancer (CRC) tissues,and evaluate its association with the prognoses of the patients.Methods A total of 106 patients were enrolled and their clinicopathological characteristics were analyzed.The expression of Gli1 proteins were detected by immunohistochemical staining,and its association with time to recurrence/metastasis (TTR) and overall survival (OS) of the patients were analyzed.Results The positive rate and expression intensity of Gli1 protein in recurrent or metastatic tumor tissues were higher than those in non-recurrent and non-metastatic tumor tissues [86.84 % (33/38) vs.58.82 % (40/68),1.32 scores vs.0.71 scores,both P < 0.01),while the positive rate and expression intensity of Ki-67 protein remained no difference between both groups [97.37 % (37/38) vs.91.18 % (62/68),1.89 scores vs.1.75 scores,both P > 0.05).The positive rates and expression intensities of Gli1 and Ki-67 proteins in CRC tissues were higher than those in adjacent tissues [26.42 % (28/106) and 0.27 scores;4.72 %(5/106),0.05 scores] and normal tissues [3.33 % (1/106),0.03 scores;0,0.00 scores] (all P < 0.01).Results of univariate analysis showed that the expression of Gli1 protein,tumor grade and lymph node involvement were significantly associated with TTR,but all of the clinicopathological factors had no obvious association with OS.The association remained significant between the expression of Gli1 protein and TTR in multivariate analysis (P < 0.01).Conclusion The expression of Gli1 protein is an independent prognostic marker of recurrence or metastasis in CRC patients,its high expression implicates a high risk of CRC recurrence or metastasis.

5.
J Neurol Sci ; 367: 291-7, 2016 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-27423606

RESUMO

OBJECTIVE: Reliable molecular biomarkers for epilepsy have yet to be identified. The present study aims to evaluate the utility of serum metalloproteinase-3 as a diagnostic biomarker for epilepsy. METHODS: Serum MMP-3 levels were assessed in 227 individuals with epilepsy and 97 healthy control subjects. Individuals in the control group had no complaints or signs of any neurological disorder for at least 12months before serum collection. The Luminex FLEXMAP 3D assay was used to determine serum MMP-3 levels. RESULTS: Compared with controls, subjects with epilepsy had significantly lower serum MMP-3 concentrations (p<0.05). Serum MMP-3 concentrations were significantly higher in males than in females (p<0.001). Furthermore, Serum MMP-3 concentrations were strongly correlated with age in both epileptic and control groups. For these reasons, ROC curve analyses were performed in age-matched and gender matched groups. In the population aged 20-40years, when cut-off values of 23.87ng/ml and 12.31ng/ml were chosen for MMP-3 in males and females respectively, the sensitivity and specificity for patients with epilepsy versus controls were 72.22% and 76.67% for males, and 45% and 94.12% for females. And when cut-off MMP-3 concentrations of 20.70ng/ml and 10.92ng/ml were chosen for the ≥40years age group, the sensitivity and specificity to distinguish between epileptic and control subjects were 85.71% and 47.62% versus 85.62% and 100% for male and female groups, respectively. CONCLUSIONS: MMP-3 is reduced in epilepsy patients compared to healthy controls. The potential of MMP-3 as an epilepsy biomarker is limited to certain age brackets and depends on the gender.


Assuntos
Epilepsia/sangue , Metaloproteinase 3 da Matriz/sangue , Adolescente , Adulto , Idoso , Envelhecimento/sangue , Biomarcadores/sangue , Criança , Pré-Escolar , Feminino , Humanos , Imunoensaio , Masculino , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Caracteres Sexuais , Adulto Jovem
6.
Epilepsy Res ; 122: 114-9, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27016865

RESUMO

OBJECTIVES: In this study, we evaluate the utility of serum metalloproteinase-2 (MMP-2) as a biomarker for the diagnosis of epilepsy. METHODS: We assessed serum MMP-2 levels in 233 epileptic and 97 healthy control subjects. Control subjects had no complaints or signs of neurological disorders for at least 12 months prior to serum collection. Serum MMP-2 levels were determined using the Luminex technology. RESULTS: Compared with controls, subjects with epilepsy had significantly lower serum MMP-2 concentrations (P<0.05). There was no significant difference between males and females in either group (P>0.05). Serum MMP-2 concentrations were highly correlated with age in both groups, and this correlation was strongest for males. When an MMP-2 cut-off value of 175.40ng/ml was used, the sensitivity for distinguishing subjects with epilepsy from controls was 71.13% and the specificity was 62.66%. CONCLUSIONS: Our results reveal that serum MMP-2 may be a potential biomarker for the diagnosis of epilepsy.


Assuntos
Epilepsia/sangue , Metaloproteinase 2 da Matriz/sangue , Adolescente , Adulto , Idoso , Envelhecimento/sangue , Envelhecimento/efeitos dos fármacos , Análise de Variância , Biomarcadores/sangue , Análise Química do Sangue , Criança , Pré-Escolar , Epilepsia/tratamento farmacológico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Curva ROC , Sensibilidade e Especificidade , Caracteres Sexuais , Adulto Jovem
7.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-301039

RESUMO

<p><b>OBJECTIVE</b>To study a non-drug therapy for hypertension disease by combining percutaneous laser and electric pulse stimulation to acupoint with music, and to test the efficiency of the combining treatment to grade 1 essential hypertension.</p><p><b>METHODS</b>A total of 174 patients with grade 1 essential hypertension were randomly assigned to 3 groups with a random number table after Chinese medicine (CM) syndrome differentiation: the photoelectric and musical treatment group (Group 1, with a self-developed multi-mode audio frequency pulse photoelectric therapeutic apparatus), acupuncture group (Group 2), and oral placebo group (Group 3), 58 cases per group. The curative effect of each group was evaluated by the changes of blood pressure and CM syndrome integral before and after treatment.</p><p><b>RESULTS</b>Compared with Group 3, there were significant decrease of blood pressure and CM syndrome integral in Group 1 and Group 2 (P<0.01). Compared with Group 2, Group 1 showed the highest decrease in systolic pressure (P<0.017). The total effective rate of anti-hypertension in Group 1 (91.38%, 53/58) was significantly higher than that in Group 2 (74.13%, 43/58) and Group 3 (18.97%, 11/58, P<0.05 or P<0.01); and that in Group 2 was also significantly higher than that in Group 3 (P<0.01). There were significant difference in the total effective rate of CM syndrome integral in both Group 1 (93.10%, 54/58) and Group 2 (84.48%, 49/58) as compared with Group 3 (17.24%, 10/58, P<0.01), while there was no significant difference between Group 1 and Group 2 (P>0.05).</p><p><b>CONCLUSIONS</b>The multi-mode audio frequency pulse photoelectric therapeutic apparatus, combining music, laser and electric pulse stimulation, is clinically useful for grade 1 essential hypertension. This "three in one" therapy method is non-invasive, easy and simple to handle. It is expected to be popularized as a new alternative treatment.</p>


Assuntos
Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pontos de Acupuntura , Pressão Sanguínea , Terapia por Estimulação Elétrica , Hipertensão Essencial , Hipertensão , Terapêutica , Lasers , Medicina Tradicional Chinesa , Música , Síndrome , Resultado do Tratamento
8.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-812584

RESUMO

The present study was designed to identify bioactive compounds similar to those isolated from Dendrobium genus from its relative specie Eria bambusifolia. Compounds 1-10 were isolated and purified using silica gel, MCI CHP-20 gel, Sephadex LH-20, and Lichroprep RP-18 chromatography methods. Their structures were elucidated by means of extensive spectroscopic analyses. The cytotoxicity of these compounds against five human cancer cell lines was tested. Erathrins A and B (1 and 2) were new compounds, and compound 1 represented a novel carbon framework having a phenanthrene-phenylpropane unit with a dioxane moiety. Moreover, compound 1 showed selective cytotoxic activity against HL-60 cells (IC50 = 14.50 μmol·L(-1)). These results provided a basis for future development of these agents as anticancer lead compounds.


Assuntos
Humanos , Antineoplásicos Fitogênicos , Química , Farmacologia , Sobrevivência Celular , Dendrobium , Química , Células HL-60 , Estrutura Molecular , Fenantrenos , Química , Farmacologia , Extratos Vegetais , Química , Farmacologia
9.
PLoS One ; 9(10): e106625, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25286230

RESUMO

BACKGROUND: Although the accumulation of homocysteine (Hcy) has been implicated in the pathogenesis of depression, whether Hcy is directly involved and acts as the primary cause of depressive symptoms remains unclear. The present study was designed to clarify whether increased Hcy plays an important role in stress-induced depression. RESULTS: We employed the chronic unpredictable mild stress model (CUMS) of depression for 8 weeks to observe changes in the plasma Hcy level in the development of depression. The results showed that Wistar rats exposed to a series of mild, unpredictable stressors for 4 weeks displayed depression-like symptoms such as anhedonia (decreased sucrose preferences) and a decreased 5-Hydroxy Tryptophan (5-HT) concentration in the hippocampus. At the end of 8 weeks, the plasma Hcy level increased in the CUMS rats. The anti-depressant sertraline could decrease the plasma Hcy level and improve the depression-like symptoms in the CUMS rats. RhBHMT, an Hcy metabolic enzyme, could decrease the plasma Hcy level significantly, although it could not improve the depressive symptoms in the CUMS rats. CONCLUSIONS: The results obtained from the experiments did not support the hypothesis that the increased Hcy concentration mediated the provocation of depression in CUMS rats, and the findings suggested that the increased Hcy concentration in the plasma might be the result of stress-induced depression.


Assuntos
Depressão/complicações , Hiper-Homocisteinemia/etiologia , Estresse Psicológico/complicações , Animais , Comportamento Animal/efeitos dos fármacos , Betaína-Homocisteína S-Metiltransferase/uso terapêutico , Doença Crônica , Depressão/sangue , Depressão/tratamento farmacológico , Modelos Animais de Doenças , Homocisteína/sangue , Hiper-Homocisteinemia/sangue , Hiper-Homocisteinemia/tratamento farmacológico , Masculino , Metionina/uso terapêutico , Ratos Wistar , Proteínas Recombinantes/uso terapêutico , Sertralina/farmacologia , Sertralina/uso terapêutico , Estresse Psicológico/sangue , Estresse Psicológico/tratamento farmacológico
10.
Cell Stress Chaperones ; 19(6): 865-75, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24789270

RESUMO

Moderate levels of stress can be beneficial to health, while stress overload can cause injury or contribute to diseases. Despite a number of studies of adaptation or stress damage, the mechanisms of adaptation and stress damage remain far from clear. The effect and mechanisms of adaptation on cardiomyocytes damage caused by stress overload are discussed in this study. Data showed that mild repeated stress mitigated stress overload-induced cardiomyocyte injury both in an animal model of restraint stress and in H9C2 cells with GC (glucocorticoid) treatment. HSP70, HIP expression and interaction between HSP70 and HIP increased during adaptation induced by mild stress both in animals and H9C2 cells. Overexpression or inhibition of HSP70 in H9C2 cells with pCDNA-3.1-Hsp70 or KNK437 (HSP70 inhibitor) showed that HSP70 can protect H9C2 cells from GC-induced cell damage. A luciferase assay showed that Hsp70 plays its protective role through inhibition of GR transcription activity dependent on the interaction with HIP. These results indicated that HSP70 may promote adaptation with its interacting protein HIP, and increased levels of HSP70 and its interacting protein HIP during adaptation may play a protective role on stress-overload-induced cardiomyocyte injury.


Assuntos
Glucocorticoides/toxicidade , Proteínas de Choque Térmico HSP70/metabolismo , Cardiopatias/prevenção & controle , Chaperonas Moleculares/metabolismo , Miócitos Cardíacos/efeitos dos fármacos , Receptores de Glucocorticoides/agonistas , Estresse Psicológico/metabolismo , Adaptação Fisiológica , Animais , Compostos Benzidrílicos/farmacologia , Linhagem Celular , Modelos Animais de Doenças , Proteínas de Choque Térmico HSP70/antagonistas & inibidores , Proteínas de Choque Térmico HSP70/genética , Cardiopatias/genética , Cardiopatias/metabolismo , Cardiopatias/patologia , Hidrocortisona/sangue , Masculino , Chaperonas Moleculares/genética , Miócitos Cardíacos/metabolismo , Miócitos Cardíacos/patologia , Pirrolidinonas/farmacologia , Interferência de RNA , Ratos Wistar , Receptores de Glucocorticoides/genética , Receptores de Glucocorticoides/metabolismo , Restrição Física , Transdução de Sinais/efeitos dos fármacos , Estresse Psicológico/complicações , Estresse Psicológico/genética , Estresse Psicológico/patologia , Fatores de Tempo , Transfecção
11.
PLoS One ; 9(2): e88427, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24551098

RESUMO

Depression is generally a recurrent psychiatric disorder. Evidence shows that depression and cardiovascular diseases are common comorbid conditions, but the specific pathological mechanisms remain unclear. The purpose of this study is to determine the effects of depression induced by chronic unpredictable mild stress (CUMS) on myocardial injury and to further elucidate the biological mechanism of depression. Rats were used as a model. The CUMS procedure lasted for a total of 8 weeks. After 4 weeks of CUMS, treated rats exhibited a reduced sucrose preference and changes in scores on an open field test, body weight and content of 5-HT in the brain as compared with the values of these variables in controls. These changes indicated depression-like changes in CUMS rats and demonstrated the feasibility of the depression model. In addition, pathological changes in the myocardium and increased cardiomyocyte apoptosis demonstrated that myocardial injury had occurred after 6 weeks of CUMS and had increased significantly by the end of 8 weeks of CUMS. Plasma serotonin (5-HT), norepinephrine (NE) and epinephrine (E), all depression-related neuroendocrine factors, were measured by HPLC-ECD techniques, and the content of plasma corticosterone (GC) was evaluated by an I(125)-cortisol radioactivity immunoassay in control and CUMS rats. The results indicated that 5-HT had decreased, whereas NE, E and GC had increased in CUMS rats, and these factors might be associated with depression-induced myocardial injury. The effects of 5-HT, NE and GC on the survival rate of cultured cardiomyocytes were determined using an orthogonal design. The results showed that 5-HT was a more important factor affecting cell survival than GC or NE. The results suggested that normal blood levels of 5-HT had a cytoprotective effect. The neuroendocrine disorders characterized by decreased 5-HT combined with increased GC and NE mediated the occurrence of depression-induced myocardial injury.


Assuntos
Cardiomiopatias/fisiopatologia , Depressão/fisiopatologia , Sistemas Neurossecretores/fisiopatologia , Estresse Psicológico/fisiopatologia , Animais , Apoptose/efeitos dos fármacos , Peso Corporal/efeitos dos fármacos , Cardiomiopatias/etiologia , Cardiomiopatias/metabolismo , Células Cultivadas , Comorbidade , Corticosterona/sangue , Corticosterona/farmacologia , Depressão/etiologia , Depressão/metabolismo , Epinefrina/sangue , Epinefrina/farmacologia , Masculino , Miócitos Cardíacos/efeitos dos fármacos , Miócitos Cardíacos/metabolismo , Miócitos Cardíacos/patologia , Sistemas Neurossecretores/efeitos dos fármacos , Sistemas Neurossecretores/metabolismo , Norepinefrina/sangue , Norepinefrina/farmacologia , Ratos , Ratos Wistar , Serotonina/sangue , Serotonina/farmacologia , Estresse Psicológico/complicações , Estresse Psicológico/metabolismo
12.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-318499

RESUMO

<p><b>OBJECTIVE</b>To explore safe, effective, simple and easy non-drug treatments for grade 1 essential hypertension.</p><p><b>METHODS</b>According to TCM syndrome differentiation, 126 cases of grade 1 essential hypertension were classified into 4 types: liver-fire hyperactivity syndrome, yin-deficiency and yang-hyperactivity syndrome, excessive phlegm-dampness syndrome, yin-yang deficiency syndrome, and then the patients were randomly divided into a photoelectric combined with musical treatment group (group A), an acupuncture group(group B) and a placebo group (group C). The acupoints were selected according to TCM syndrome differentiation in group A and group B, and multi-mode audio frequency pulse photoelectric therapeutic apparatus and acupuncture were used in the two groups respectively, once daily. Taichong (LR 3) and Quchi (LI 11) were selected in liver-fire hyperactivity syndrome, Taixi (KI 3) and Sanyinjiao (SP 6) were selected yi yin-deficiency and yang-hyperactivity syndrome, Zusanli (ST 36) and Fenglong (ST 40) were selected in excessive phlegm-dampness syndrome, while Taixi (KI 3) and Guanyuan (CV 4) were selected yi yirryang deficiency syndrome. The group C was treated with oral administration of starch tablet (25 mg), one tablet each time,three times everyday. Ten days were considered as one course, totally three courses were required in the three groups. The blood pressure and scores of TCM syndromes before and after treatment were compared among the three groups.</p><p><b>RESULTS</b>The blood pressure decreased significantly after treatment in group A and group B (all P<0.01), and the decrease in systolic blood pressure was more significant in group A (P < 0.05). The total effective rate was 90.5 / (38/42) in group A, which was superior to 71. 4 (30/42, P < 0.05) in group B and 19.1% (18/34, P<0. 01) in group C. The scores of TCM syndromes were both improved in group A and group B, but without significant difference between the two groups (P > 0.05).</p><p><b>CONCLUSION</b>The clinical effect of multi-mode audio frequency pulse photoelectric therapeutic apparatus for treatment of grade 1 essential hypertension is reliable. Meanwhile, it has the advantages of a non-invasive and simple operation.</p>


Assuntos
Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pontos de Acupuntura , Pressão Sanguínea , Terapia Combinada , Terapia por Estimulação Elétrica , Hipertensão Essencial , Hipertensão , Terapêutica , Terapia a Laser , Musicoterapia , Resultado do Tratamento
13.
Stress ; 15(5): 545-53, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22128883

RESUMO

Stress induces cardiac dysfunction and cardiomyocyte injury, and while current data indicate that mitochondria play a key role in this process, the mechanisms remain unknown. In this study, we found that in rats, restraint stress induced nerve growth factor-induced clone B (NGFI-B) translocation from the nucleus to mitochondria in cardiomyocytes. This translocation promoted cytochrome c release from mitochondria to the cytoplasm, which ultimately resulted in cardiomyocyte apoptosis. We also found that stress induced oversecretion of glucocorticoids and activated the protein kinase A (PKA) pathway in cardiomyocytes. Enhanced PKA activity increased NGFI-B serine phosphorylation, which caused NGFI-B to translocate from the nucleus to mitochondria. Moreover, a PKA peptide inhibitor blocked NGFI-B serine phosphorylation and translocation. Our data demonstrate that stress affects cardiomyocytes by inducing NGFI-B mitochondrial translocation via serine phosphorylation, which in turn initiates mitochondrial-mediated apoptosis.


Assuntos
Apoptose/fisiologia , Núcleo Celular/metabolismo , Mitocôndrias Cardíacas/metabolismo , Miócitos Cardíacos/metabolismo , Membro 1 do Grupo A da Subfamília 4 de Receptores Nucleares/metabolismo , Estresse Fisiológico , Animais , Células Cultivadas , Citocromos c/metabolismo , Masculino , Proteínas Mitocondriais/química , Proteínas Mitocondriais/metabolismo , Miócitos Cardíacos/citologia , Fosforilação , Transporte Proteico , Ratos , Ratos Wistar
14.
Kampo Medicine ; : 131-137, 2012.
Artigo em Japonês | WPRIM (Pacífico Ocidental) | ID: wpr-362893

RESUMO

Traditional medicine educational systems in Japan and China were compared.<br>In Japan, Kampo medicine has been integrated into the core curriculum of undergraduate education in all medical colleges since 2001. Japanese university medical schools give 6,000 hours of western medical educa tion, and only 30 hours of Kampo education. In China at Traditional Chinese Medicine (TCM) universities, nearly half of teaching hours are devoted to TCM, and half to Western medicine. And even at medical univer sities that specialize in Western medicine, students will usually have 80 hours in TCM courses. Usually it takes five years to graduate. In Japan, Kampo education puts a special focus on the <i>Shang-han-lun </i>and <i>Jin-kui-yao lue </i>texts, which still influence daily practice. In China, on the other hand, TCM doctors rely on traditional theories of Chinese medicine such as the Yin-Yang theory, the Five Elements theory or relationships between meridians and organs. Kampo specialists have been increasing in recent years, although in China, the number of TCM doctors has been decreasing. However, better traditional medicine education would play a role in in creasing our inheritance of both in Japan and in China.

15.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-351174

RESUMO

<p><b>OBJECTIVE</b>To investigate the changes of expression and subcellular location of nuclear growth-induced protein-B(NGFI-B) in cardiomyocytes of stressed rats and its biological effect and to provide scientific evidences for exploring the mechanism underlying myocardium injury induced by stress.</p><p><b>METHODS</b>The cell model of stress-induced cardiomyocyte injury were established. Western blot method and confocal microscopy method were used to investigate the subcellular location of NGFI-B in cardiomyocytes under stress. The flow-cytometry was selected to detect the apoptotic rate in cardiomyocytes in vitro. Western blot method was used to determine the content of cytochrome C protein in mitochondria and cytoplasm respectively.</p><p><b>RESULTS</b>Stress induced the increase of NGFI-B content in the mitochondria of cardiomyocytes and the translocation of NGFI-B from the nucleus to the mitochondria. The translocation of NGFI-B promoted the release of cytochrome C from the mitochondria and the cardiomyocyte apoptosis. Treatment of stressed cardiomyocytes with leptomycin B, a non-specific blocker of nuclear export, resulted in nuclear retention of NGFI-B and abrogated its ability to induce the release of cytochrome C from the mitochondria.</p><p><b>CONCLUSION</b>Stress could induce NGFI-B translocation from the nucleus to the mitochondria in cardiomyocytes, which activated the mitochondrial pathway of cell apoptosis.</p>


Assuntos
Animais , Masculino , Ratos , Animais Recém-Nascidos , Apoptose , Células Cultivadas , Miócitos Cardíacos , Biologia Celular , Metabolismo , Membro 1 do Grupo A da Subfamília 4 de Receptores Nucleares , Metabolismo , Ratos Wistar , Estresse Fisiológico
16.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-402789

RESUMO

Objective To investigate the apoptosis of gastric carcinoma SGC-7901 cell induced by histone deacetylase inhibitor(TSA)and to clarify its mechanisms.Methods The apoptosis-inducing role of TSA on gastric carcinoma SGC-7901 cell was investigated with the help of cell proliferation assay,Annexin V stain,cell flow analyzer and Tunel assay.Western blot,gene chips,real time PCR were employed to study the influence and mechanisms of TSA on the expression of gastric carcinoma cell SGC-7901 p53,bax,etc.Results TSA could induce the apoptosis of gastric carcinoma SGC-7901 cells,increase the expression of p53 and bax,and decrease the expression of bcl-2.survivin and easpase in gastric carcinoma SGC-7901 cells.TSA could transfer AIF and EndoG from mitochondria to nucleus.The apoptosis induced by TSA was brought about through the regulation of multiple apoptosis-related genes,and the apoptosis pathway induced by TSA was caspase-independent.Conclusion TSA can induce caspase-independent apoptosis in gastric carcinoma SGC-7901 cell through the regulation of multiple apoptosis-related genes.

17.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-356256

RESUMO

<p><b>AIM</b>To assay the transcriptional regulation effect of hHSF1 on prohibitin gene promoter.</p><p><b>METHODS</b>The total length of hHSF1 exon was amplified by PCR method and cloned into pcDNA3. 1(+) vector. pcDNA3. 1(+)-hHSF1 and pGI3 prohibitin were co-transfected into HEK293 cells. The luciferase activity was detected by Dual-Luciferase Reporter Assay System to evaluate the transcriptional regulation effect of hHSF1 on prohibitin gene promoter.</p><p><b>RESULTS</b>The pcDNA3.1(+)-hHSF1 vector was constructed successfully. The assay of luciferase activity showed that the transcription of pGL3-prohibitin was dramatically upregulated by hHSF1.</p><p><b>CONCLUSION</b>hHSF1 can transcriptionally regulate prohibitin expression.</p>


Assuntos
Humanos , Sequência de Bases , Proteínas de Ligação a DNA , Fisiologia , Regulação da Expressão Gênica , Células HEK293 , Fatores de Transcrição de Choque Térmico , Dados de Sequência Molecular , Regiões Promotoras Genéticas , Proteínas Repressoras , Genética , Fatores de Transcrição , Fisiologia , Transcrição Gênica , Transfecção
18.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-340137

RESUMO

<p><b>AIM</b>To explore the level of anti-HSP70 antibody in plasma during atherosclerosis procedure induced by high-fat diet in rat and the relationship of them.</p><p><b>METHODS</b>Twenty eight rat were divided into high-fat diet group (H) and control group (C). The total cholesterol (TC), Glyceride (TG), low density lipoprotein cholesterol (LDL-C) in serum, pathology change of rat Arch of the aorta were determined, the level of anti-HSP70 antibody and their Phenotype were evaluated by ELISA.</p><p><b>RESULTS</b>After two weeks, the serum concentrations of TC and LDL-C in rat supplemented by high-fat diet were significantly higher than those in control group (P < 0.01), the serum TG were much lower than those in control group (P < 0.01). Four weeks later the level of anti-HSP70 antibody, IgM, IgG phenotype were significantly higher than those in control group (P < 0.01). There were lipin deposition and mottling formation in rat Arch of the aorta in rat supplemented by high-fat diet in 12th week.</p><p><b>CONCLUSION</b>Atherosclerosis could be induced by high-fat diet in rat. Accompany with the atherosclerosis procession, the level of anti-HSP70 antibody was continuously elevated, the level of anti-HSP70 antibody was related to atherosclerosis. The level of anti-HSP70 antibody was closely associated with atherosclerosis.</p>


Assuntos
Animais , Masculino , Ratos , Anticorpos , Sangue , Aterosclerose , Alergia e Imunologia , Dieta Hiperlipídica , Gorduras na Dieta , Proteínas de Choque Térmico HSP70 , Alergia e Imunologia , Imunoglobulina G , Sangue , Imunoglobulina M , Sangue , Ratos Wistar
19.
Acta Crystallogr Sect E Struct Rep Online ; 64(Pt 7): m855, 2008 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-21202732

RESUMO

In the title compound, [Zn(C(16)H(8)O(8))(C(12)H(8)N(2))(2)]·2H(2)O, the Zn(II) atom is located on a twofold rotation axis and is six-coordinated by two O atoms from a 5,5'-dicarboxy-biphenyl-2,2'-dicarboxyl-ate ligand and four N atoms from two 1,10-phenanthroline mol-ecules in a distorted octa-hedral geometry. The crystal structure involves O-H⋯O hydrogen bonds.

20.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-472709

RESUMO

Objective: To observe the effects of nerve block on MA and EA analgesia and mast cells degranulation in adjuvant arthritis rats in order to analyze the difference between the underlying peripheral mechanism of MA and EA analgesia. Methods: Zusanli (ST 36) was chosen as the acupuncturing point on adjuvant arthritis rats. Eighty SD rats were randomized into 10 groups, including control, model, normal+Lido, EA, Lido+EA, DLido+ZEA, Xlido+ZEA, MA, Lido+MA, Dlido+ZMA groups, with 8 rats in each group. Paw Withdraw Latencies and mast cells degranulation ratios were recorded and computed. Results: Compared with model group, the pain threshold (PT) and mast cells degranulation ratios of EA and MA groups were obviously increased (P<0.05 or P<0.01). The analgesia effects of both MA and EA were obviously attenuated after nerve block by pretreated with Lidocaine hydrochloride at the acupuncturing point or at the acupiont of proximal end in the same neural stem while they were not by the same manipulations at the acupoint of distal end. Degranulation ratios of mast cells caused by MA or EA were not obviously affected by nerve block. Conclusion: The effective signal of nerve conduction of MA analgesia is generated after the degranulation of mast cells in the process of acupoints activation or needle sense and it is the direct cause of generation of nerve signal. In the condition of EA, the acupoints activation is caused by the stimulation of electric signal on nerve receptor while the degranulation of mast cells is concomitant or feedback effect.

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