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1.
Zhen Ci Yan Jiu ; 45(3): 251-4, 2020 Mar 25.
Artigo em Chinês | MEDLINE | ID: mdl-32202719

RESUMO

Acupuncture has become an effective approach in clinic for treating obesity, but its mechanism has not been clarified yet. A large number of researches have been conducted on the obesity mechanism in the aspects of neurophysiological regulation, feeding center regulation and peripheral digestion and absorption regulation at home and abroad. But, regarding the main storage site of excess energy, i.e. the remodeling and functional regulation of white adipose tissue (WAT), is still a new field in research. In the paper, focusing on the new filed of weight loss, in view of the promotion of WAT browning through the re-gulation of UCP1 and PPARγ signal pathway with acupuncture, the potential peripheral mechanism of acupuncture was explored on weight loss.

2.
Sheng Li Xue Bao ; 71(4): 637-644, 2019 Aug 25.
Artigo em Chinês | MEDLINE | ID: mdl-31440761

RESUMO

Mixed linked leukemia 4 (MLL4) is a specific methyltransferase of histone 3 position lysine 4 (H3K4). It is also one of the important members of COMPASS/Set1-like protein complex. Both MLL4 protein itself and its mediated H3K4 methylation modification can cause changes in chromatin structure and function, thus regulating gene transcription and expression. With the studies of MLL4 protein in recent years, the roles of MLL4 gene, MLL4 protein and protein complex in the development of tissues and organs, tumor diseases and other physiological and pathophysiological processes have been gradually revealed. In this paper, the research progress of MLL4 gene, MLL4 protein characteristics, biological function and its effect on disease were reviewed, in order to further understand the effect of histone methyltransferase on gene expression regulation, as well as its non-enzyme dependent function. This paper may provide new ideas for the prevention, diagnosis and treatment of related diseases.


Assuntos
Proteínas de Ligação a DNA/fisiologia , Histona-Lisina N-Metiltransferase/fisiologia , Histonas/química , Humanos , Metilação
3.
Zhen Ci Yan Jiu ; 44(7): 538-42, 2019 Jul 25.
Artigo em Chinês | MEDLINE | ID: mdl-31368288

RESUMO

At present, intestinal flora has attracted more and more attention from scholars in China and foreign countries, and its association with ischemic stroke (IS) has gradually become a new research hotspot in the field of stroke. Studies also showed that intestinal flora may be a risk factor which directly or indirectly affects the occurrence and development of IS through bacterial metabolites and immune activities. In the present paper, we review the positive effect of acupuncture and moxibustion in alleviating the symptoms of limb locomotor, speech, swallowing dysfunction, cognition, etc. to improve the IS patients' daily life ability and in strengthening the cellular immune function of the body. In addition, acupuncture and moxibustion have a positive effect in regulating intestinal flora and immune inflammation. Hence, in the present paper, we discuss their relationship and the possibility of application of acupuncture and moxibustion therapies to the treatment of IS according to the theory of "intestinal flora-immune response". It is thus reasonable to speculate that acupuncture and moxibustion can be used to promote the recovery of brain tissue injury and neurological function after stroke via correcting intestinal flora disturbance and reducing immune inflammatory response. In-depth exploration of the role of "intestinal flora-immune response" in the treatment of IS and the specific regulatory function of acupuncture and moxibustion will provide new ideas and research approaches to reveal their mechanisms in the treatment of stroke from a new perspective.


Assuntos
Terapia por Acupuntura , Isquemia Encefálica , Microbioma Gastrointestinal , Moxibustão , Acidente Vascular Cerebral , China , Humanos , Acidente Vascular Cerebral/terapia
4.
Front Psychiatry ; 10: 353, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31244685

RESUMO

Objective: This study investigated the influence of electroacupuncture (EA) and its potential underlying mechanisms on adipose tissue in obese mice. Methods: Three-week-old male C56BL/6 mice were randomly divided to feed or not to feed high-fat diet (HFD), named HFD group and chow diet (CD) group, respectively. After 12 weeks, CD and HFD mice were randomly divided into two groups, respectively, to receive or not receive EA for 4 weeks. Body weight (BW) was monitored. Intraperitoneal glucose tolerance test and metabolic chamber recordings were performed. Blood samples and adipose tissue were collected for the analysis of leptin, triglyceride levels, and fat browning-related proteins. Results: EA significantly reduced food intake, BW, and white adipose tissue (WAT)/BW ratio; decreased the adipocyte size and serum concentrations of triglyceride (TG) and cholesterol; and increased oxygen consumption in HFD mice. Compared with the CD mice, the HFD mice had elevated fasting serum glucose level and impaired glucose tolerance; however, these parameters were decreased by EA treatment. Meanwhile, EA promoted the protein and mRNA expressions of UCP1, PRDM16, and PGC-1α in adipose tissue, and activated sympathetic nerves via p-TH, A2AR, and ß3AR in white adipose tissue. Conclusions: EA reduced food intake, BW, TG, and cholesterol, and improved glucose tolerance in HFD mice. This ameliorative effect of EA on obesity-related symptoms associated with its promoted adipose tissue plasticity via activating sympathetic nerves.

5.
Zhen Ci Yan Jiu ; 44(5): 313-8, 2019 May 25.
Artigo em Chinês | MEDLINE | ID: mdl-31155861

RESUMO

OBJECTIVE: To investigate the effect of electroacupuncture (EA) on the expression of interleukin-8 (IL-8), interleukin-10 (IL-10), tyrosine hydroxylase (TH), ß3-adrenergic receptor (ß3AR), and endothelial nitric oxide synthase (eNOS) in myocardial tissue in ischemic myocardial injury rats, so as to reveal its underlying mechanisms in myocardial protection via anti-inflammation and sympathetic nerve remodeling. METHODS: A total of 48 male Sprague-Dawley rats were randomly divided into sham-operation (sham, n=9), sham +EA (n=9), model (n=15) and EA (n=15) groups. The myocardial ischemia (MI) model was established by ligation of the left anterior descending branch of the left coronary artery. EA (2 Hz/15 Hz,1.5-2 mA) was applied to bilateral "Neiguan" (PC6) for 30 min, once daily for 4 days. The myocardial infarct size was detected by 2, 3, 5 triphenyltetrazolium chloride (TTC) staining, myocardial histopathological changes and inflammatory infiltration were assessed by H.E. staining, and the expression of IL-8, IL-10, TH, ß3AR, and eNOS in the myocardium was determined by using Western blot. RESULTS: Compared with the sham group, a marked myocardial infarction was found in the left ventricle tissue, accompanied with disordered arrangement of myocardial fibers and higher degree of inflammatory cell infiltration, and increased expression of IL-8, TH, ß3AR and eNOS in the myocardium in the model group (P<0.01), but without significant change in the expression of IL-10 (P>0.05). After EA intervention and in comparison with the model group, the myocardial infarct size was significantly reduced (P<0.01), the severity of inflammatory cell infiltration and disordered arrangement of myocardial fibers were relieved, and the expression of IL-10 and eNOS proteins were significantly up-regulated (P<0.05), and the markedly up-regulated expression of IL-8, TH, and ß3AR were significantly suppressed in the EA group (P<0.01).. CONCLUSION: EA intervention can reduce the myocardial infarct size (protective effect) in MI rats possibly by reducing inflammatory reaction and sympathetic nerve remodeling.


Assuntos
Eletroacupuntura , Infarto do Miocárdio , Animais , Citocinas , Masculino , Miocárdio , Ratos , Ratos Sprague-Dawley
6.
Zhongguo Zhen Jiu ; 39(5): 501-6, 2019 May 12.
Artigo em Chinês | MEDLINE | ID: mdl-31099221

RESUMO

OBJECTIVE: To observe the effects of electroacupuncture (EA) on sympathetic nerve-related substance in myocardial tissue in mice with myocardial ischemia (MI), and to explore its possible mechanism. METHODS: Thirty adult male C57BL/6 mice were randomly divided into a sham operation group, a model group and an EA group, 10 mice in each one. The model of MI was established in the model group and EA group by ligating the left anterior descending branch of coronary artery. The mice in the sham operation group were not treated with ligating at left anterior descending branch of coronary artery, but the remaining procedure was similar with the model group. The mice in the EA group were treated with EA at "Neiguan" (PC 6) with 2 Hz/100 Hz of frequency and 2 mA of intensity, 20 min per treatment, once a day for totally 5 days. No EA was given for model group and sham operation group. The electrocardiogram was recorded and △ST value was calculated to evaluate the model. TTC staining was applied to evaluate the infarct size. Immunohistochemical (IHC) method was applied to evaluate the positive nerve fiber density in myocardial tissue. Western blot method was applied to test the protein expression levels of neuregulin-1 (NRG-1), tyrosine hydroxylase (TH), growth associated protein-43 (GAP-43). RESULTS: The electrocardiogram (lead II) results indicated compared with the sham operation group, the S-T segments in the model group and EA group were increased obviously (both P<0.01), indicating the MI model was established successfully. The TTC staining results indicated compared with sham operation group, the infarction size was significantly increased in the model group (P<0.01); compared with the model group, the infarction size in the EA group was significantly reduced (P<0.01). The IHC results indicated compared with the sham operation group, the positive nerve fiber density in myocardial was increased in the model group (P<0.01); compared with the model group, the positive nerve fiber density in myocardial was reduced in the EA group (P<0.05). The Western blot results indicated compared with the sham operation group, the expression levels of TH, NRG-1 and GAP-43 were significantly increased in the model group (P<0.01); compared with the model group, the expression level of TH and GAP-43 were significantly reduced (P<0.01) and that of NRG-1 was increased in the EA group (P<0.05). CONCLUSION: EA could increase the expression of NRG-1 and reduce the expression of TH and GAP-43 in myocardial tissues in MI mice, which could suppress sympathetic nerve hyperexcitability after infarction to achieve myocardial protection effect.


Assuntos
Doença da Artéria Coronariana , Eletroacupuntura , Isquemia Miocárdica , Animais , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Miocárdio
7.
Zhen Ci Yan Jiu ; 44(4): 302-6, 2019 Apr 25.
Artigo em Chinês | MEDLINE | ID: mdl-31056886

RESUMO

The inflammatory reaction induced by ischemic myocardial injury (IMI) is divided into three phases, i.e. the inflammatory phase, the fibrous proliferative phase and the stable phase. The appropriate inflammatory reaction effectively removes the fragments of myocardial cells, which is the essential phase in the pathological progression of myocardial ischemia (MI). However, the excessive inflammatory reaction may aggravate the myocardial injury. For this reason, the immediate control of the post-injury inflammatory reaction is the principal therapeutic measure and the research hotspot at the present. Acupuncture intervention has been demonstrated to have positive roles in relieving MI and inflammatory reaction by suppressing myocardial inflammatory cytokines (suppressing IL-1ß, TNF-α, IL-8, etc.), adjusting inflammatory reaction pathway (NF-κB signaling, TGF-ß, etc.)and activating cholinergic anti-inflammatory pathway. Therefore, it is feasible to explore the underlying mechanism of acupuncture therapy in protecting ischemic myocardium based on anti-inflammatory efficacy.


Assuntos
Terapia por Acupuntura , Inflamação , Anti-Inflamatórios , Humanos , Interleucina-1beta , NF-kappa B
8.
Zhen Ci Yan Jiu ; 43(5): 314-8, 2018 May 25.
Artigo em Chinês | MEDLINE | ID: mdl-29888568

RESUMO

OBJECTIVE: To observe the effect of electroacupuncture (EA) on insulin signaling pathway in liver tissues of central neuronal specific signal transduction and activator of transcription 5 conditional-knockout (Stat 5 NKO) mice, so as to explore its mechanism underlying improvement of insulin resistance (IR).. METHODS: Twenty-four male Stat 5 NKO mice were randomly divided into model and EA groups (n=12 mice/group), and 12 Stat 5 fl/fl mice were used as the normal control group. EA (2 Hz/15 Hz, 0.8-1.0 mA) was alternatively applied to ipsilateral "Zusanli" (ST 36) and "Neiting" (ST 44) for 20 min, once a day, 6 times a week for 4 weeks. The glucose tolerance test (GTT) and insulin tolerance test (ITT) were performed, and the values of fasting plasma glucose (FPG) and fasting insulin (FINS) were measured by glucometer and ELISA, separately. The insulin sensitivity index (ISI) was calculated. The phosphorylation protein expressions of insulin receptor substrate 1 (IRS 1), insulin receptor ß (IRß) and protein kinases B (Akt) in the liver tissues were detected by Western blot. RESULTS: In Stat 5 NKO mice (model group), FPG level and glucose area under the curve (GAUC) of ITT and GTT were significantly increased (P<0.01, P<0.05, P<0.001), while the ISI was notably down-regulated in comparison with the Stat 5 fl/fl mice (normal group, P<0.01), suggesting an impairment of both glucose tolerance (GT) and insulin tolerance (IT) in mice of the model group. After the EA treatment, the increased FPG and GAUC levels and the decreased ISI were reversed markedly (P<0.05, P<0.01, P<0.001). No significant differences were found in FINS among the three groups (P>0.05). Compared with the normal group, the protein expression levels of liver p-IRS 1 and p-IRß were significantly up-regulated (P<0.001), and the p-Akt expression was significantly down-regulated (P<0.01) in the model group. Following EA treatment, the increased p-IRS 1 and p-IRß protein expression and the decreased p-Akt expression were apparently reversed in the EA group relevant to the model group (P<0.001, P<0.01).. CONCLUSION: EA can improve the IR induced by central neuronal Stat 5-knockout in mice, which may contribute to its effectiveness in regulating hepatic IRß/IRS 1/Akt signaling pathway.


Assuntos
Eletroacupuntura , Resistência à Insulina , Pontos de Acupuntura , Animais , Proteínas Substratos do Receptor de Insulina , Fígado , Masculino , Camundongos , Camundongos Knockout , Proteínas Proto-Oncogênicas c-akt , Transdução de Sinais
9.
Cardiovasc Res ; 114(5): 679-689, 2018 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-29365089

RESUMO

Aims: To study the protective effects of late remote ischaemic preconditioning (RIPC) against myocardial ischaemia/reperfusion (I/R) injury and determine whether Stat5 is involved in this protection by using cardiomyocyte-specific Stat5 knockout mice (Stat5-cKO). Methods and results: Mice were exposed to lower limb RIPC or sham ischaemia. After 24 h, the left anterior descending artery (LAD) was ligated for 30 min, then reperfused for 180 min. The myocardial infarct size (IS), apoptotic rate of cardiomyocytes, and serum myocardial enzymes were measured to evaluate for cardioprotective effects. Heart tissues were harvested to determine the cardiomyocytes' anti-apoptotic and survival signaling. When compared with the Stat5fl/fl mice without RIPC, Stat5fl/fl mice with RIPC (Stat5fl/fl+RIPC + I/R) displayed a decreased myocardial IS/LV (16 ± 1.5 vs. 30.1 ± 3.1%, P < 0.01; IS/ area at risk (AAR), 42.2 ± 3.5 vs. 69.2 ± 4.9%, P < 0.01), a reduced cardiomyocyte apoptotic rate (2.1 ± 0.37 vs. 5.5 ± 0.53%, P < 0.01), and lower creatine kinase (CK), lactate dehydrogenase (LDH), and creatine kinase-MB (CK-MB) levels. To the contrary, the Stat5-cKO mice (Stat5fl/fl; Tnnt2Cremice with Doxycycline treatment for 7 days) did not exhibit any effect of RIPC-induced cardioprotection. Activation of STAT5 protein was significantly higher in the Stat5fl/fl+RIPC + I/R group than in the Stat5fl/fl+I/R group, while there was no significant difference between the Stat5-cKO + RIPC + I/R and the Stat5-cKO + I/R group. Further analyses with heart tissues detected decreased protein expressions of cytochrome c (Cyt c) and cleaved Caspase-3 in the Stat5fl/fl+RIPC + I/R mice, along with increased anti-apoptotic molecules, including B-cell lymphoma-extra large (Bcl-xL) and B-cell lymphoma-2 (Bcl-2); such changes were not noted in the Stat5-cKO + RIPC + I/R mice. Additionally, RIPC increased cardiac hypoxia inducible factor-1 (HIF-1α) and interleukin-10 (IL10) protein levels and caused activation of AKT, phosphatidylinositol 3 kinase (PI3K), and vascular endothelial growth factor in the heart of the Stat5fl/fl mice. However, these changes were completely inhibited by the absence of Stat5. Conclusions: These results suggest that RIPC-induced late cardioprotection against myocardial I/R injury is Stat5-dependent and is correlated with the activation of anti-apoptotic signaling and cardiomyocyte-survival signaling.


Assuntos
Apoptose , Artéria Femoral/cirurgia , Precondicionamento Isquêmico Miocárdico/métodos , Infarto do Miocárdio/prevenção & controle , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Miocárdio/metabolismo , Fator de Transcrição STAT5/metabolismo , Animais , Proteínas Reguladoras de Apoptose/metabolismo , Creatina Quinase Forma MB/sangue , Citocromos c/metabolismo , Modelos Animais de Doenças , Subunidade alfa do Fator 1 Induzível por Hipóxia/metabolismo , Interleucina-10/metabolismo , L-Lactato Desidrogenase/sangue , Ligadura , Camundongos Knockout , Infarto do Miocárdio/genética , Infarto do Miocárdio/metabolismo , Infarto do Miocárdio/patologia , Traumatismo por Reperfusão Miocárdica/genética , Traumatismo por Reperfusão Miocárdica/metabolismo , Traumatismo por Reperfusão Miocárdica/patologia , Miocárdio/patologia , Fosfatidilinositol 3-Quinase/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Fator de Transcrição STAT5/deficiência , Fator de Transcrição STAT5/genética , Transdução de Sinais , Fator A de Crescimento do Endotélio Vascular/metabolismo
10.
Nutr Diabetes ; 7(12): 2, 2017 Dec 19.
Artigo em Inglês | MEDLINE | ID: mdl-29259155

RESUMO

Insulin-like growth factor 1 (IGF1) is a key factor for tissue growth and fuel metabolism. The potential function of central IGF1 remains unclear. We previously observed that IGF1 expression is increased in the hypothalamus of obese mice lacking STAT5 in the central nervous system (CNS). In this study, we explored the potential metabolic function of central IGF1 by intracerebroventricular (ICV) injection of IGF1, over-expression of central IGF1 by administering an adeno-associated virus (AAV), and ICV injection of an anti-IGF1 antibody. Mice that over-expressed central IGF1 displayed increased appetite, improved glucose tolerance and insulin sensitivity, decreased Pomc levels in the hypothalamus, and increased UCP1 expression in brown fat tissue. This is the first study demonstrating that central IGF1 regulates several important metabolic functions.


Assuntos
Intolerância à Glucose/tratamento farmacológico , Hipotálamo/efeitos dos fármacos , Resistência à Insulina/fisiologia , Fator de Crescimento Insulin-Like I/farmacologia , Tecido Adiposo Marrom/efeitos dos fármacos , Tecido Adiposo Marrom/metabolismo , Animais , Intolerância à Glucose/genética , Intolerância à Glucose/metabolismo , Hipotálamo/metabolismo , Fator de Crescimento Insulin-Like I/genética , Fator de Crescimento Insulin-Like I/metabolismo , Fígado/efeitos dos fármacos , Fígado/metabolismo , Masculino , Camundongos , Pró-Opiomelanocortina/metabolismo , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/fisiologia , Proteína Desacopladora 1/metabolismo
11.
Zhen Ci Yan Jiu ; 42(1): 39-44, 2017 Feb 25.
Artigo em Chinês | MEDLINE | ID: mdl-29071996

RESUMO

OBJECTIVE: To investigate the effects of electroacupuncture (EA) on the expression of adenosine receptor (AR) in the white adipose tissue (WAT) of diet-induced obese (DIO) mice, so as to reveal a peripheral mechanism of EA underlying improvement of body weight. METHODS: Forty three-week-old C 57 BL/6 male mice were divided into normal diet group (n=12) and high fat diet group (n=28) randomly, and fed by normal diet and high fat diet for 12 weeks, respectively. In the high fat diet group, mice with body weight over 20% heavier than that of the normal diet group were considered as obese mice. The normal diet mice and the obese mice were divided into normal group (CD, n=5) and normal plus EA group (CD+EA, n=7), or obese group (HFD, n=6) and obese plus EA group (HFD+EA, n=12). The CD+EA group and the HFD+EA group were treated with EA at "Zusanli"(ST 36) and "Neiting"(ST 44, 2 Hz/15 Hz, 0.6-1.0 mA) for 20 min, 6 times a week for 4 weeks. Body weight, ratio of WAT/body weight were calculated, qPCR and Western blot were applied to detect mRNA and protein levels of adenosine receptors in the epididymal adipose tissue (Epi-WAT), respectively. RESULTS: Compared with the normal diet group, high fat diet significantly increased body weight in C 57 BL/6 mice after feeding for 12 weeks (P<0.01); 18 out of 28 mice in the high fat diet group were classified as obesity. After treatment, the body weight and the ratio of Epi-WAT/body weight of the HFD group were increased than those in the CD group (P<0.05), the change of body weight in the HFD group was bigger than that in the CD group (P<0.01). Compared with the HFD group, the body weight and the ratio of Epi-WAT/body weight of the HFD+EA group were decreased after EA (P<0.05), the change of body weight was also significantly increased (P<0.01). No significant differences were found among the four groups in the expression level of A1R mRNA (P>0.05). The expression of A3R mRNA in the HFD group was lower than that in the CD group (P<0.01), while the expressions of A2A R and A2BR proteins were decreased in the HFD group than in the CD group (P<0.01). In comparison with the HFD group, the expression levels of A2AR and A2BR mRNAs and proteins were significantly up-regulated in the HFD+EA group, respectively (P<0.05, P<0.01). CONCLUSIONS: EA intervention is able to reduce the body weight of DIO mice, which Feb be associated with its effects in regulating the expression of A2AR and A2BR in WAT, suggesting a new mechanism of EA in accelerating peripheral WAT metabolism.


Assuntos
Tecido Adiposo Branco/metabolismo , Eletroacupuntura , Obesidade/terapia , Receptores Purinérgicos P1/genética , Receptores Purinérgicos P1/metabolismo , Animais , Dieta Hiperlipídica/efeitos adversos , Expressão Gênica , Humanos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Obesidade/genética , Obesidade/metabolismo
12.
PLoS One ; 12(8): e0181948, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28806763

RESUMO

Acupuncture is reported to be effective in treating obesity related illnesses, but its mechanism is still unclear. To investigate this mechanism we applied electro-acupuncture (EA) in a mouse model of obesity and used RNA-seq to identify molecular consequences. Deletion of the transcription factor STAT5 from neurons (Stat5NKO) led to obesity. Acupuncture, in turn, reduced body weight and the ratio of epididymal white adipose tissue (Epi-WAT) to body weight, and it also decreased plasma concentrations of glucose, triglyceride, and cholesterol. In addition, EA increased cold endurance of Stat5NKO obese mice. EA reversed altered gene expressions in the hypothalamus and Epi-WAT, especially in the hypothalamus in Stat5NKO obese mice. This study provides, for the first time, insight into genomic networks of obesity and their modulation by electro-acupuncture, which in turn reveals potential mechanisms that explain acupuncture-induced weight-loss.


Assuntos
Eletroacupuntura , Genoma , Fator de Transcrição STAT5/deficiência , Adaptação Fisiológica , Tecido Adiposo Branco/metabolismo , Animais , Temperatura Baixa , Regulação para Baixo/genética , Metabolismo Energético/genética , Epididimo/metabolismo , Perfilação da Expressão Gênica , Hipotálamo/metabolismo , Masculino , Camundongos Knockout , Camundongos Obesos , Anotação de Sequência Molecular , Fenótipo , Reprodutibilidade dos Testes , Fator de Transcrição STAT5/metabolismo , Análise de Sequência de RNA , Regulação para Cima/genética
13.
Zhen Ci Yan Jiu ; 41(2): 180-5, 2016 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-27323449

RESUMO

Excitatory amino acids toxicity is an onset causation of cerebral ischemia injury cascade reaction, and eventually leading to brain cell necrosis and apoptosis. Acupuncture is reported to be effective for ischemic stroke in clinical practice and animal experiments, but its mechanism is still under exploring. In this paper the authors introduce the research status of antiexcitatory amino acids toxicity effect of acupuncture in ischemic stroke animals by summarizing its effects on subunits of ionotropic glutamate receptor (NMDA/AMPA) and metabotropic glutamate receptors (mGluRs), and on astrocyte activities. Results indicated that acupuncture intervention may down-regulate the expression levels of cerebral multi-types (NR 1, NR 2 B) of glutamate NMDA receptors, up-regulate expression of glutamate transporter-1, NR 2 A, cannabinoid receptor (CBR) type 1 and 2, and suppress activities of cerebral astrocytes, reduce the content of extracellular glutamate to lower its toxicity and to improve stroke at last. The present paper may provide a reference for acupuncture research on ischemic brain injury.


Assuntos
Terapia por Acupuntura , Aminoácidos Excitatórios/toxicidade , Acidente Vascular Cerebral/terapia , Animais , Encéfalo/metabolismo , Aminoácidos Excitatórios/metabolismo , Humanos , Receptores de Glutamato Metabotrópico/genética , Receptores de Glutamato Metabotrópico/metabolismo , Receptores de N-Metil-D-Aspartato/genética , Receptores de N-Metil-D-Aspartato/metabolismo , Acidente Vascular Cerebral/genética , Acidente Vascular Cerebral/metabolismo
14.
Artigo em Inglês | MEDLINE | ID: mdl-27313648

RESUMO

Objectives. Our previous study has used RNA-seq technology to show that apoptotic molecules were involved in the myocardial protection of electroacupuncture pretreatment (EAP) on the ischemia/reperfusion (I/R) animal model. Therefore, this study was designed to investigate how EAP protects myocardium against myocardial I/R injury through antiapoptotic mechanism. Methods. By using rats with myocardial I/R, we ligated the left anterior descending artery (LAD) for 30 minutes followed by 4 hr of reperfusion after EAP at the Neiguan (PC6) acupoint for 12 days; we employed arrhythmia scores, serum myocardial enzymes, and cardiac troponin T (cTnT) to evaluate the cardioprotective effect. Heart tissues were harvested for western blot analyses for the expressions of pro- and antiapoptotic signaling molecules. Results. Our preliminary findings showed that EAP increased the survival of the animals along with declined arrhythmia scores and decreased CK, LDH, CK-Mb, and cTnT levels. Further analyses with the heart tissues detected reduced myocardial fiber damage, decreased number of apoptotic cells and the protein expressions of Cyt c and cleaved caspase 3, and the elevated level of Endo G and AIF after EAP intervention. At the same time, the protein expressions of antiapoptotic molecules, including Xiap, BclxL, and Bcl2, were obviously increased. Conclusions. The present study suggested that EAP protected the myocardium from I/R injury at least partially through the activation of endogenous antiapoptotic signaling.

15.
Artigo em Inglês | MEDLINE | ID: mdl-26904147

RESUMO

We investigate the effect of electroacupuncture (EA) on protecting the weight gain side effect of rosiglitazone (RSG) in type 2 diabetes mellitus (T2DM) rats and its possible mechanism in central nervous system (CNS). Our study showed that RSG (5 mg/kg) significantly increased the body weight and food intake of the T2DM rats. After six-week treatment with RSG combined with EA, body weight, food intake, and the ratio of IWAT to body weight decreased significantly, whereas the ratio of BAT to body weight increased markedly. HE staining indicated that the T2DM-RSG rats had increased size of adipocytes in their IWAT, but EA treatment reduced the size of adipocytes. EA effectively reduced the lipid contents without affecting the antidiabetic effect of RSG. Furthermore, we noticed that the expression of PPARγ gene in hypothalamus was reduced by EA, while the expressions of leptin receptor and signal transducer and activator of transcription 3 (STAT3) were increased. Our results suggest that EA is an effective approach for inhibiting weight gain in T2DM rats treated by RSG. The possible mechanism might be through increased levels of leptin receptor and STAT3 and decreased PPARγ expression, by which food intake of the rats was reduced and RSG-induced weight gain was inhibited.

16.
Trials ; 16: 525, 2015 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-26576673

RESUMO

BACKGROUND: Acupuncture is considered to be an effective and safe treatment for obese and overweight patients, although high-quality evidence regarding the effects of acupuncture on obesity are not conclusive. The aim of the current study is to investigate the effectiveness of electro-acupuncture plus lifestyle modification for treating obese and overweight patients, in comparison with lifestyle modification alone in China. METHODS/DESIGN: To compare the effectiveness of acupuncture plus lifestyle modification, a 2-armed, controlled trial with randomization using minimization will be conducted on 150 simple obesity and overweight patients, aged 18-50 years, for a 36-week study duration. All patients will be randomly assigned to one of two groups and will receive either acupuncture plus lifestyle modification or lifestyle modification alone. Outcomes will be evaluated at baseline and at 4 weeks, 8 weeks, and 12 weeks during treatment as well as at 6-week, 12-week, and 24-week follow-up. The primary endpoint is change of body mass index (BMI) during the 12th week. Secondary endpoints are body weight; waist-to-hip ratio; biochemical tests including serum cholesterol (TC), triglyceride (TG) and high-density lipoprotein (HDL) levels; and answers to the Short Form 36 (SF-36) and the Impact of Weight on Quality of Life Questionnaire-Lite Version (IWQOL-Lite). Statistical analyses will be based on the intention-to-treat (ITT) principle. The main endpoint will be analyzed by analysis of covariance (ANCOVA), and the objective outcome results will be analyzed by logistic regression analysis. To avoid potential confounding factors, additional sensitivity analyses will be conducted following these statistical analyses. DISCUSSION: This trial is the first to compare the effectiveness of acupuncture plus lifestyle modification for treating obesity relative to lifestyle modification treatment alone by using a pragmatic study design. We hope that the results of this study will contribute to advancing the current methodology of acupuncture trials for obesity and will facilitate the application of useful acupuncture strategies in real-world clinical settings. TRIAL REGISTRATION: ChiCTR-TRC- 12002762 . The date of registration is 31 October 2012.


Assuntos
Eletroacupuntura , Obesidade/terapia , Sobrepeso/terapia , Comportamento de Redução do Risco , Adolescente , Adulto , Análise de Variância , Antropometria , China , Protocolos Clínicos , Terapia Combinada , Pesquisa Comparativa da Efetividade , Eletroacupuntura/efeitos adversos , Feminino , Humanos , Análise de Intenção de Tratamento , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Obesidade/diagnóstico , Obesidade/fisiopatologia , Sobrepeso/diagnóstico , Sobrepeso/fisiopatologia , Qualidade de Vida , Projetos de Pesquisa , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento , Perda de Peso , Adulto Jovem
17.
BMC Complement Altern Med ; 15: 139, 2015 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-25925670

RESUMO

BACKGROUND: Angina pectoris (Angina) is a medical condition related to myocardial ischemia. Although acupuncture has been widely accepted as a clinical approach for angina, there is no sufficient evidence of its effectiveness against this syndrome, and its mechanisms have not yet been well elucidated. We develop this protocol to confirm the clinical efficacy of electro-acupuncture on stable angina pectoris by needling on acupoint Neiguan (PC6). Furthermore, we employ high-throughput sequencing technology to investigate the gene expression profiling and determine involvement of histone modifications in the regulation of genes after electro-acupuncture treatment. METHODS/DESIGN: A randomized, controlled, double-blinded (assessor and patients) trial will be carried out. Sixty participants will be randomly assigned to two acupuncture treatment groups and one control group in a 1:1:1 ratio. Participants in acupuncture groups will receive 12 sessions of electro-acupuncture treatment across 4 weeks, followed by a 12-week randomization period. The acupuncture groups are divided into Neiguan (PC6) on Pericardium Meridian of Hand-jueyin or a non-acupoint. The primary clinical measure of effect is the frequency of angina attacks between these groups for four weeks after randomization. RNAs are extracted from peripheral neutrophils collected from all participants on day 0, day 30, and week 16, and are processed to RNA-Seq. We then investigate profiles of histone modifications by ChIP-Seq, for H3 Lysine 4 (H3K4me) and acetylation of H3 Lysine 27 (H3K27ac), in the presence or absence of acupuncture treatment. DISCUSSION: This study determines the efficacy and mechanisms of electro-acupuncture on stable angina pectoris. We focus on effectiveness of acupuncture on alleviating symptoms of myocardial ischemia and the gene regulation and the chromatin remodeling marks, including H3K4me1, H3K4me2, and H3K27ac, which could be key factors for regulating gene expressions caused by electro-acupuncture treatment at Neiguan. This is the first genome-wide study of electro-acupuncture treatment in angina patients, and will provide valuable information for future studies in the fields of acupuncture and its underlying mechanisms. Fourteen patients have been recruited since recruitment opened in November of 2012. This study is scheduled to end in November of 2014. TRIALS REGISTRATION: ChiCTR-TRC-12002668.


Assuntos
Angina Estável/terapia , Montagem e Desmontagem da Cromatina , Eletroacupuntura , Expressão Gênica , Histonas/metabolismo , Pontos de Acupuntura , Adulto , Idoso , Angina Pectoris , Angina Estável/genética , Protocolos Clínicos , Feminino , Perfilação da Expressão Gênica , Estudo de Associação Genômica Ampla , Humanos , Lisina/metabolismo , Masculino , Pessoa de Meia-Idade , Projetos de Pesquisa
18.
Zhen Ci Yan Jiu ; 40(6): 510-3, 2015 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-26887217

RESUMO

Clinical practice shows that thiazolidinediones (TZDs) induce weight gain in patients with type-II diabetes mellitus during treatment, which restrains its application and generalization clinically. It has been demonstrated that acupuncture therapy is useful in easing obesity in clinical trials. In the present paper, we summarize the underlying mechanism of weight gain induced by TZDs through food intake-related targets in the central nervous system and analyze the possible effects of acupuncture therapy. Acupuncture therapy is expected to reduce weight gain side effect of TZDs through 1) lowering permeability of blood brain barrier to reduce TZDs concentration in the brain, 2) upregulating the expression of hypothalamic leptin and inhibiting hypothalamic neuropiptide Y expression, and 3) down-regulating activities of peroxisome proliferator-activated receptor to reduce energy intake and fat syntheses.


Assuntos
Terapia por Acupuntura , Sistema Nervoso Central/metabolismo , Diabetes Mellitus Tipo 2/terapia , Hipoglicemiantes/efeitos adversos , Tiazolidinedionas/efeitos adversos , Animais , Sistema Nervoso Central/efeitos dos fármacos , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/fisiopatologia , Ingestão de Alimentos , Humanos , Hipoglicemiantes/administração & dosagem , Leptina/genética , Leptina/metabolismo , Receptores Ativados por Proliferador de Peroxissomo/genética , Receptores Ativados por Proliferador de Peroxissomo/metabolismo , Tiazolidinedionas/administração & dosagem , Ganho de Peso
19.
BMC Complement Altern Med ; 14: 501, 2014 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-25514854

RESUMO

BACKGROUND: To study the influence of acupuncture and its possible mechanism on white adipose tissue of high fat diet-induced obese. METHODS: Four-week-old C57BL/6 J mice were randomly divided into a normal diet group and a high-fat diet (HFD) group. After 8 weeks, the HFD mice were randomly divided into Electro-acupuncture (EA) group and control group. Mice in the EA group were electro-acupunctured, under physical restraint, on Zusanli (ST36) and Neiting (ST44) acupoints, while the mice in the control group were under physical restraint only. Body weight and food intake were monitored, and serum leptin, cholesterol and triglyceride levels were measured by using biochemistrical methods. The effect of EA on white adipose tissues (WAT) was assessed by qPCR, immunoblotting, immunohistochemistry (IHC), immunoprecipitation and cold endurance experiment. RESULTS: The WAT/body weight ratio decreased (P < 0.05) in the EA group, albeit no significant difference on food consumption between EA and control groups. The difference in the darkness of Epi-WAT between EA and control groups could be distinguished visually. HE staining indicated that the EA mice had an increased number of UCP1-immunoreactive paucilocular adipocytes in their WAT. The expressions of brown adipose tissue (BAT) markers, including UCP1, COX4il and Nrtf1 were increased in the WAT of EA mice, acetylation of Pparγ was decreased by electro-acupuncture. CONCLUSION: EA can remodel WAT to BAT through inducing UCP1 expression, and this may be one of the mechanisms by which acupuncture affects weight loss.


Assuntos
Terapia por Acupuntura , Adipócitos/metabolismo , Tecido Adiposo Marrom/metabolismo , Tecido Adiposo Branco/metabolismo , Peso Corporal , Canais Iônicos/metabolismo , Proteínas Mitocondriais/metabolismo , Obesidade/terapia , Animais , Dieta Hiperlipídica/efeitos adversos , Camundongos Endogâmicos C57BL , Obesidade/etiologia , Obesidade/metabolismo , Proteína Desacopladora 1
20.
Molecules ; 19(10): 16158-78, 2014 Oct 09.
Artigo em Inglês | MEDLINE | ID: mdl-25302705

RESUMO

This study investigated genome-wide gene expressions and the cardioprotective effects of electro-acupuncture pretreatment at the PC6 Neiguan acupoint on myocardial ischemia reperfusion (I/R) injury. Male SD rats were randomly divided into four groups: sham operation (SO), I/R, electro-acupuncture at the PC6 Neiguan acupoint pretreatment (EA) and electro-acupuncture at non-acupoint pretreatment (NA). Compared with the I/R group, the survival rate of the EA group was significantly increased, the arrhythmia score, infarction area, serum concentrations of CK, LDH and CK-Mb and plasma level of cTnT were significantly decreased. RNA-seq results showed that 725 genes were up-regulated and 861 genes were down-regulated under I/R conditions compared to the SO group; both EA and NA reversed some of these gene expression levels (592 in EA and 238 in NA group). KEGG pathway analysis indicated that these genes were involved in multiple pathways, including ECM, MAPK signaling, apoptosis, cytokine and leukocyte pathways. In addition, some pathways were uniquely regulated by EA, but not NA pretreatment, such as oxidative stress, cardiac muscle contraction, gap junction, vascular smooth muscle contraction, hypertrophic, NOD-like receptor, and P53 and B-cell receptor pathways. This study was first to reveal the gene expression signatures of acute myocardial I/R injury and electro-acupuncture pretreatment in rats.


Assuntos
Terapia por Acupuntura , Expressão Gênica , Traumatismo por Reperfusão Miocárdica/genética , Traumatismo por Reperfusão Miocárdica/terapia , Terapia por Acupuntura/métodos , Animais , Análise por Conglomerados , Modelos Animais de Doenças , Eletrocardiografia , Perfilação da Expressão Gênica , Regulação da Expressão Gênica , Estudo de Associação Genômica Ampla , Masculino , Traumatismo por Reperfusão Miocárdica/metabolismo , Traumatismo por Reperfusão Miocárdica/mortalidade , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Ratos , Reprodutibilidade dos Testes , Transdução de Sinais
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