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1.
Magn Reson Chem ; 60(3): 407-413, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34823270

RESUMO

On the basis of the higher order perturbation formulas of g factors for a 4d1 group in tetragonally compressed octahedra, the g factors, optical absorption, local structure, and their concentration dependences of pentavalent molybdenum in 40PbO-(10 - x)Y2 O3 -50P2 O5 :xMoO3 (1 ≤ x ≤ 5 mol%) glass are uniformly investigated. The experimental optical absorption spectra and g factors for Mo5+ at various concentrations x are reasonably regenerated by using the reasonable exponential concentration functions of the cubic field parameter Dq , covalent factor N, and relative tetragonal compression ratio ρ. The tetragonal compression ratio ρ due to the Jahn-Teller effect was found in the range of 3.8% to 4.2%. The decreasing trend of Dq and N and the increasing trend of ρ with concentration can be interpreted as the fact that the variations of MoO3 and Y2 O3 concentrations lead to the modulations of local structure and electron cloud distribution around Mo5+ , associated with the adjustment of the glass network. The concentration dependence of optical basicity is also analyzed for the above glass systems.

2.
Zhongguo Zhen Jiu ; 40(6): 586-90, 2020 Jun 12.
Artigo em Chinês | MEDLINE | ID: mdl-32538006

RESUMO

OBJECTIVE: To observe the effect on swallowing function in patients with post-stroke dysphagia treated with nape cluster acupuncture and the immediate effect of acupuncture at Fengchi (GB 20). METHODS: A total of 60 patients with post-stroke dysphagia were randomized into an observation group and a control group, 30 cases in each one.On the basis of conventional western medication treatment, swallowing function training was applied in the control group, once a day.On the base of the treatment as the control group, nape cluster acupuncture was applied at Fengchi (GB 20), Tianzhu (BL 10), Wangu (GB 12), Lianquan (CV 23), Panglianquan (Extra), Jinjin (EX-HN 12) and Yuye (EX-HN 13) in the observation group, once a day. Additionally, pricking blood was applied at Jinjin (EX-HN 12) and Yuye (EX-HN 13), 2 times a week. The treatment was given 30 min each time, a week as one course and 4 courses were required. Before and after treatment, the standardized swallowing assessment (SSA) score and video fluoroscopic swallowing study (VFSS) score were compared in the two groups. The ultrasonic diagnostic device of swallowing and surface electromyography were used to observe the immediate effect on swallowing related muscles of acupuncture at Fengchi (GB 20). RESULTS: Compared before treatment, the SSA scores were reduced after treatment in the two groups (P<0.05), and the change of the observation group was larger than the control group (P<0.05). Compared before treatment, the VFSS scores were increased after treatment in the two groups (P<0.05), and the change of the observation group was larger than the control group (P<0.05). Acupuncture at Fengchi (GB 20) immediately increased the amplitude of submental muscles and infrahyoid muscles in the observation group (P<0.05), the geniohyoid muscle movement time was reduced and geniohyoid muscle displacement was increased (P<0.05). CONCLUSION: On the base of the routine treatment, nape cluster acupuncture could improve swallowing function in patients with post-stroke dysphagia. Acupuncture at Fengchi (GB 20) could immediately affect swallowing related muscles, improve muscle amplitude and reduce swallowing time.


Assuntos
Terapia por Acupuntura , Transtornos de Deglutição/terapia , Acidente Vascular Cerebral/terapia , Pontos de Acupuntura , Deglutição , Transtornos de Deglutição/etiologia , Humanos , Acidente Vascular Cerebral/complicações , Reabilitação do Acidente Vascular Cerebral , Resultado do Tratamento
3.
Chin J Integr Med ; 26(6): 420-427, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32361934

RESUMO

OBJECTIVE: To assess the effect and safety of Hydroxysafflor Yellow A for Injection (HSYAI) in treating patients with acute ischemic stroke (AIS) and blood stasis syndrome (BSS). METHODS: A multicenter, randomized, double-blind, multiple-dose, active-controlled phase II trial was conducted at 9 centers in China from July 2013 to September 2015. Patients with moderate or severe AIS and BSS were randomly assigned to low-, medium-, high-dose HSYAI groups (25, 50 and 70 mg/d HSYAI by intravenous infusion, respectively), and a control group (Dengzhan Xixin Injection (, DZXXI) 30 mL/d by intravenous infusion), for 14 consecutive days. The primary outcome was the Modified Rankin Scale (mRS) score ⩽1 at days 90 after treatment. The secondary outcomes included the National Institute of Health Stroke Scale (NIHSS) score ⩽1, Barthel Index (BI) score ⩾95, and BSS score reduced ⩾30% from baseline at days 14, 30, 60, and 90 after treatment. The safety outcomes included any adverse events during 90 days after treatment. RESULTS: Of the 266 patients included in the effectiveness analysis, 66, 67, 65 and 68 cases were in the low-, medium-, and high-dose HSYAI and control groups, respectively. The proportions of patients in the medium- and high-dose HSYAI groups with mRS score ⩽1 at days 90 after treatment were significantly larger than the control group (P<0.05). The incidences of favorable outcomes of NIHSS and BI at days 90 after treatment as well as satisfactory improvement of BSS at days 30 and 60 after treatment in the medium- and high-dose HSYAI groups were all significantly higher than the control group (P<0.05). No significant difference was reported among the 4 groups in any specific adverse events (P>0.05). CONCLUSIONS: HSYAI was safe and well-tolerated at all doses for treating AIS patients with BSS. The medium (50 mg/d) or high dose (75 mg/d) might be the optimal dose for a phase III trial. (Registration No. ChiCTR-2000029608).


Assuntos
Isquemia Encefálica/tratamento farmacológico , Circulação Cerebrovascular/efeitos dos fármacos , Chalcona/análogos & derivados , Quinonas/uso terapêutico , Acidente Vascular Cerebral/tratamento farmacológico , Idoso , Chalcona/uso terapêutico , Relação Dose-Resposta a Droga , Método Duplo-Cego , Feminino , Humanos , Injeções , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários
4.
J Cell Sci ; 127(Pt 15): 3257-68, 2014 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-24829148

RESUMO

Analyses of supernatants from apoptotic cells have helped in the identification of many signals that modulate the states of cell activation and differentiation. However, the current knowledge about the soluble factors that are released during apoptosis is rather limited. Previous studies have shown that S5a and angiocidin (both encoded by PSMD4) induce human acute monocytic leukemia cells (THP-1 cells) to differentiate into macrophages, but the cell-surface receptor of S5a has not been identified. In this study, we show that apoptotic THP-1 cells release endogenous S5a that binds to death receptor-6 (DR6, also known as TNFRSF1), which was identified as an orphan receptor, to induce THP-1 cells to differentiate. Furthermore, we found that the NF-κB pathway is activated, and that the transcription factors WT1 (Wilms' tumor 1) and c-myb mediate S5a-induced THP-1 differentiation. We also show that differentiation is blocked by anti-DR6 antibody, DR6 siRNA, DR6-Fc, NF-κB inhibitor or WT1 siRNA treatment. Our findings indicate that the interaction between cells can determine their differentiation, and we provide evidence for a functional interaction between S5a and DR6, which provides a novel potential mechanism to induce the differentiation of cancer cells, especially during biotherapy for leukemia.


Assuntos
Monócitos/fisiologia , Complexo de Endopeptidases do Proteassoma/metabolismo , Proteínas Proto-Oncogênicas c-myb/metabolismo , Receptores do Fator de Necrose Tumoral/metabolismo , Proteínas WT1/metabolismo , Anticorpos Bloqueadores/farmacologia , Apoptose/genética , Diferenciação Celular/efeitos dos fármacos , Diferenciação Celular/genética , Linhagem Celular , Humanos , NF-kappa B/metabolismo , Fosforilação/genética , Ligação Proteica/efeitos dos fármacos , Ligação Proteica/genética , Proteínas Proto-Oncogênicas c-myb/genética , RNA Interferente Pequeno/genética , Proteínas de Ligação a RNA , Receptores do Fator de Necrose Tumoral/genética , Receptores do Fator de Necrose Tumoral/imunologia , Transdução de Sinais/genética , Proteínas WT1/genética
5.
Ying Yong Sheng Tai Xue Bao ; 22(7): 1711-6, 2011 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-22007445

RESUMO

To understand the dynamic variations of soil moisture in the root zone of original Haloxylon ammodendron land is of significance for further understanding the interactions between hydrological processes and vegetations in the Gurbantunggut Desert. By using TDR probes system, this paper measured the volumetric soil moisture content in H. ammodendron land in the southern edge of Gurbantunggut Desert, and analyzed the spatiotemporal distribution of soil moisture in the root zone of H. ammodendron in August 2007-July 2008. There existed 'wet island' effect in H. ammodendron root zone. The 0-60 cm soil water storage in the root zone was 1.49 times of that in bare land. Such a difference was greater in summer than in spring and after rainfall than before rainfall. The soil moisture content in the Desert was the richest in spring after snow melting and the lowest in winter, and its annual variation could be divided into three periods, i.e., quick supplement-consumption period in spring (from March to May), slow consumption period in summer and autumn (from June to September), and stable period in winter (form October to next February). Based on wavelet analysis, the soil moisture variation in H. ammodendron root zone and bare land had a short cycle of 43 and 40 days and a long cycle of 110 and 103 days, respectively. The relatively rich soil moisture content in H. ammodendron root zone could be mainly due to the stem flow water collection, tree canopy shading, and the better water percolating capacity in root zone.


Assuntos
Desenvolvimento Vegetal , Raízes de Plantas/metabolismo , Solo/análise , Água/análise , China , Clima Desértico , Ecossistema , Estações do Ano
6.
Zhongguo Zhen Jiu ; 31(5): 391-4, 2011 May.
Artigo em Chinês | MEDLINE | ID: mdl-21692279

RESUMO

UNLABELLED: OBJECTIVE To verify the correlation between the points of eye acupuncture and zang-fu function so as to provide the theoretical evidence for the principle of point selection in eye acupuncture therapy. METHODS: Sixty cases of cerebral infarction were treated with different points according to syndrome differentiation of Chinese medicine. MAIN POINTS: upper energizer area and lower energizer area. Supplementary points: liver area, kidney area and spleen area for hyperactivity of wind, phlegm and fire; liver area and spleen area for blockage of wind, phlegm and stasis; stomach area and large intestine area for excess fu syndrome due to phlegm heat; heart area and spleen area for qi deficiency and blood stasis; liver area and kidney area for yin deficiency and wind stirring. The single photon emission computed tomography (SPECT) was adopted to observe the changes in blood flow in local foci before and after treatment with eye acupuncture. RESULTS: After the treatment with eye acupuncture therapy, the intake ratio of region of interest (ROI) between the lesion area and corresponding area on the opposite side was 0.74 +/- 0.12 before eye acupuncture and was 0.91 +/- 0.08 after treatment, indicating significant statistical difference in comparison (P < 0.05). After eye acupuncture, cerebral blood flow increased apparently. CONCLUSION: The point selection according to syndrome differentiation in eye acupuncture therapy may increase local brain blood flow in the patients with cerebral infarction and improve the state of brain ischemia so that the correlation can be proved between the points of eye acupuncture and zang-fu function.


Assuntos
Terapia por Acupuntura , Infarto Cerebral/fisiopatologia , Infarto Cerebral/terapia , Circulação Cerebrovascular , Olho , Pontos de Acupuntura , Adulto , Idoso , Encéfalo/diagnóstico por imagem , Infarto Cerebral/diagnóstico por imagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tomografia Computadorizada de Emissão de Fóton Único
7.
Yi Chuan ; 27(4): 601-4, 2005 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-16120586

RESUMO

Genetic correlations among brown rice rate, chalkiness grain rate, chalkiness area and AC, and correlations between these quality traits and plant height and panicle trait were analyzed using parental seeds of 3 x 3 NC II reciprocal mating and some F2 generation seeds by the genetic model given by Zhu Jun for the selection of japonica breeding progeny. The results showed that milled rice weight and brown rice rate are highly significant correlation with maternal additive effect. The genetic covariance between genetic effect components of quality traits and agronomy traits was not significant but that between quality and other plant traits was complicated.


Assuntos
Oryza/genética , Locos de Características Quantitativas , Sementes/genética , Cruzamento , Cruzamentos Genéticos , Grão Comestível/anatomia & histologia , Grão Comestível/economia , Grão Comestível/genética , Flores/anatomia & histologia , Flores/genética , Oryza/anatomia & histologia , Sementes/anatomia & histologia
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