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1.
Acta Anatomica Sinica ; (6): 543-547, 2020.
Artigo em Chinês | WPRIM | ID: wpr-1015527

RESUMO

Objective To discuss the proliferation inhibition and apoptosis induction of human pancreatic cancer cell line SW1900 by dauricine and its possible mechanism. Methods The MTT colorimetric method was used to detect the inhibitory effects of cell viability. The apoptosis rate was tested by the Annexin Ⅴ-FITC / PI fluorescent staining of flow cytometric method . The expressions of phosphatidylinositol 3-kinase (PI3K), protein kinase B (Akt) and B-cell lymphoma-2 (Bcl-2) were detected by Real-time PCR and Western blotting assay. Results MTT assay showed that dauricine significantly inhibited the proliferation of SW1900 cells and the inhibitory effect was enhanced with the increasing of dauricine concentration, F = 783. 7, P < 0. 001. The apoptosis of 3 groups cells were (4. 34 ± 1. 30) % (0 mg / L dauricine), (14. 94±1. 94) % (6 mg / L dauricine) and (22. 68±3. 61) % (12 mg / L dauricine) . The mean difference was statistically significant among the three groups (F = 58. 52, P < 0. 001) . Dauricine could significantly induce apoptosis human pancreatic cancer cells with dose-dependent manner. Real-time PCR showed that the gene expressions of PI3K, Akt and Bcl-2 were lower obviously (PI3K mRNA, F = 101, P = 0. 01; Akt mRNA, F = 1666, P < 0. 01; Bcl-2 mRNA, F = 753, P<0. 001) with dose-dependent manner. Western blotting assay also showed that the protein expression of PI3K, Akt and Bcl-2 was down-regulated with dose-dependent manner. Conclusion Dauricine has proliferation inhibition and apoptosis inducement effect on human pancreatic cancer cells line SW1900. This function may be concerned with the regulation of PI3K / Akt signal pathway and lower Bcl-2 expression.

2.
Chinese Journal of Contemporary Pediatrics ; (12): 1005-1011, 2019.
Artigo em Chinês | WPRIM | ID: wpr-775066

RESUMO

OBJECTIVE@#To study the mRNA level of runt-related transcription factor 3 (RUNX3) in children with bronchiolitis and its clinical significance in bronchiolitis.@*METHODS@#A total of 54 young children with bronchiolitis were enrolled as the bronchiolitis group, among whom 28 with atopic constitution were enrolled in the atopic bronchiolitis group and 26 with non-atopic constitution were enrolled in the non-atopic bronchiolitis group. A total of 48 healthy young children were enrolled as the healthy control group, among whom 24 with atopic constitution were enrolled in the atopic healthy control group and 24 with non-atopic constitution were enrolled in the non-atopic healthy control group. Quantitative real-time PCR was used to measure the mRNA level of RUNX3 in peripheral blood mononuclear cells. ELISA was used to measure the serum levels of interleukin-4 (IL-4) and interferon gamma (IFN-γ).@*RESULTS@#The bronchiolitis group had a significantly lower mRNA level of RUNX3 than the healthy control group, and the atopic bronchiolitis group had a significantly lower mRNA level of RUNX3 than the non-atopic bronchiolitis, atopic healthy control, and non-atopic healthy control groups (P<0.05). The bronchiolitis group had a significantly higher serum level of IL-4 than the healthy control group, and the atopic bronchiolitis group had a significantly higher serum level of IL-4 than the non-atopic healthy control group (P<0.05). The bronchiolitis group had a significantly lower serum level of IFN-γ than the healthy control group, and the atopic bronchiolitis group had a significantly lower serum level of IFN-γ than the non-atopic bronchiolitis, atopic healthy control, and non-atopic healthy control groups (P<0.05). The correlation analysis showed that the mRNA level of RUNX3 was negatively correlated with the serum level of IL-4 and was positively correlated with the serum level of IFN-γ (P<0.05).@*CONCLUSIONS@#Measurement of RUNX3 gene expression in peripheral blood mononuclear cells has a certain value in identifying children with atopic constitution at high risk of asthma among children with bronchiolitis.


Assuntos
Criança , Pré-Escolar , Humanos , Asma , Bronquiolite , Subunidade alfa 3 de Fator de Ligação ao Core , Genética , Interferon gama , Leucócitos Mononucleares
3.
Chinese Journal of Clinical and Experimental Pathology ; (12): 284-288, 2018.
Artigo em Chinês | WPRIM | ID: wpr-695090

RESUMO

Purpose To study the clinicopathological, immunophynotypic features of pituicytoma and its rare ependymal variant with discussion of its diagnosis and differential diagnosis. Methods 7 cases of pituicytoma, including 6 conventional pituicytomas and 1 ependymal variant tumor, were evaluated by HE staining and immunohistochemistry, and the relevant literatures were reviewed. Results Microscopically, the tumors were composed of closely packed plump spindle cells arranged in short fascicle and storiform pattern in 6 conventional pituicytomas, and whorl and papillary architecture with obvious perivascular rosette formation in the ependymal variant tumor. Immunohistochemically, all tumor cells were diffuse positive for S-100 and TTF-1, but negative for IDH1 R132H, Olig-2, CD34, NF, Syn, CgA, and pituitary hormones. Ki-67 proliferation index was less than 2% in all cases. GFAP and EMA were only focally positive in conventional pituicytomas, whereas GFAP was diffuse positive in ependymal variant tumor with EMA dot-like staining in more than half of tumor cells. Conclusion Pituicytoma is a rare low grade glioma derived from neurohypophysis. To study helps recognition of extending morphological spectrum of pituicytoma and its new variant, which is important for its differential diagnosis consideration and clinical therapy.

4.
China Journal of Chinese Materia Medica ; (24): 1518-1522, 2015.
Artigo em Chinês | WPRIM | ID: wpr-351315

RESUMO

Chemical constituents of ethyl acetate extract of Sapium sebiferum leaves were isolated and purified by various chromatographic methods, including column chromatographies over silica gel, macroporous adsorption resin, and Sephadex LH-20, as well as preparative TLC and semi preparative HPLC. As a results, 15 compounds were separated from Sapium sebiferum leaves and their structures were examined by spectral analysis including NMR and MS data and identified as( + )-(7R,7'R,7"S,7'"S,8S,8'S,8"S,8'"S)-4", 4"'-dihydroxy-3,3',3",3',5,5'-hexamethoxy-7,9';7',9-diepoxy-4,8";4',8'"-bisoxy-8,8'-dineo-lignan-7",7"',9",9"'-tetraol(1) ,1-(4'- hydroxy-3'-methoxyphenyl)-2-[4"-(3-hydroxypropyl) -2", 6"-dimethoxyphenoxy] propane-1, 3-diol (2), Thero-2, 3-bis-(4-hydroxy-3- methoxypheyl)-3-methoxy-propanol(3) , threo-5-hydroxy-3,7-dimethoxyphenyl propane-8,9-diol (4), boropinol B (5), threo-8S-7-methoxysyringylglycerol(6), 5-hydroxymethylfurfural(7), 5-( methoxy-methyl)-1H-pyrrole-2-carbaldehyde (8), quercetin (9) , kaempferol (10), ethyl gallate(11), coniferaldehyde(12), vanillin(13), 7-hydroxy-6-methoxy-2H-1-henzopyran-2-one(14),and 1-heptacosanol (15). All compounds except for compounds 9-11,14 were separated from this plant for the first time.


Assuntos
Medicamentos de Ervas Chinesas , Química , Espectrometria de Massas , Estrutura Molecular , Folhas de Planta , Química , Sapium , Química
5.
China Journal of Chinese Materia Medica ; (24): 2526-2530, 2014.
Artigo em Chinês | WPRIM | ID: wpr-299779

RESUMO

Chemical constituents of ethyl acetate extract of Illicium burmanicum were isolated and purified by various chromatographic methods,including Silica gel, Sephadex LH-20, C18 reverse-phased silica gel, Preparative TLC and Preparative HPLC. Their structures were identified by spectral analysis including NMR and MS data. Fourteen compounds were separated from I. burmanicum and their structures were identified as 7S,8R-erythro-4,7,9,9'-tetrahydroxy-3,3'-dimethoxy-8-O-4'-neolignan (1), 7R,8R-threo-4,7, 9,9'-tetrahydroxy-3,3 '-dimethoxy-8-O-4'-neolignan(2) ,polystachyol(3), (-) -massoniresinol(4), angustanoic acid F (5), trans-sobrerol(6), (3S,6R) -6,7-dihydroxy-6,7-dihydrolinalool (7), (3S, 6S) -6,7-dihydroxy-6,7-dihydrolinalool (8), 2,6-dimethoxy-4-allyl-phenol (9), 3,5-dihydroxy4-hydroxy benzaldehyde (10), 3-hydroxy4-methoxybenzaldehyde (11), methyl vanillate (12), shikimic acid ethylester (13) and beta-sitosrerol (14). Except compound 14, the rest thirteen compounds were separated from this plant for the first time.


Assuntos
Medicamentos de Ervas Chinesas , Química , Illicium , Química , Estrutura Molecular , Espectrometria de Massas por Ionização por Electrospray
6.
Chinese Medical Journal ; (24): 1076-1080, 2013.
Artigo em Inglês | WPRIM | ID: wpr-342236

RESUMO

<p><b>BACKGROUND</b>Increased renal sympathetic nerve activity can result in diuretic resistance in patients with chronic congestive heart failure. We investigated the effect of regional renal nerve blockade on the patients with chronic refractory heart failure and diuretic resistance.</p><p><b>METHODS</b>Eighteen patients with chronic refractory heart failure were enrolled (mean age (64 ± 11) years). The patients were randomly divided into two groups (renal nerve blockade group and standard therapy group, n = 9 each). Renal nerve blockade was performed by percutaneous injection of local anaesthetic under computed tomographic guidance. Heart rate, mean arterial blood pressure, plasma and urine electrolytes, neurohormones, factional excretion of sodium (FENa), 24-hour urine volume were monitored at baseline and the first 24 hours after therapy. Dyspnea and oedema were also evaluated. The major adverse cardiovascular events (MACE), plasma brain natriuretic peptide (BNP) level and left ventricular ejection fraction (LVEF) were compared between the two groups during the 3 - 12 months follow-up period.</p><p><b>RESULTS</b>No complication was observed during the acute phase of renal nerve blockade. After renal nerve blockade, the 24-hour urine volume and FENa were significantly increased, while the level of plasma rennin, angiotensin II, aldosterone, BNP and atrial natriuretic peptide as well as dyspnea and oedema were significantly reduced in renal nerve blockade group compared with baseline and standard therapy group. During three to 12 months of follow-up, the rate of MACE and plasma BNP level were significantly lower, while LVEF was significantly higher in renal nerve blockade group than those in standard therapy group.</p><p><b>CONCLUSION</b>Regional renal nerve blockade may be a safe and effective treatment for patients with chronic refractory heart failure.</p>


Assuntos
Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Amidas , Usos Terapêuticos , Anestésicos Locais , Usos Terapêuticos , Insuficiência Cardíaca , Tratamento Farmacológico , Frequência Cardíaca , Peptídeo Natriurético Encefálico , Sangue , Bloqueio Nervoso , Métodos , Resultado do Tratamento
7.
Chinese Journal of Oncology ; (12): 627-631, 2012.
Artigo em Chinês | WPRIM | ID: wpr-307327

RESUMO

<p><b>OBJECTIVE</b>To explore the efficacy and side effects of icotinib hydrochloride in the treatment of patients with advanced non-small cell lung cancer (NSCLC).</p><p><b>METHODS</b>The efficacy and side effects of icotinib hydrochloride in treatment of 59 cases with stage IV NSCIC and followed-up from March 2009 to January 2012 were retrospectively analyzed.</p><p><b>RESULTS</b>Twenty seven patients (45.8%) showed partial response (PR), 17 patients (28.8%) achieved SD, and 15 (25.4%) had progressive disease. The objective response rate (ORR) was 45.8% (27/59), and disease control rate (DCR) was 74.6% (44/59). Among the 23 patients with EGFR mutation, ORR was 73.9% (17/23), and DCR was 95.7% (22/23). Thirty six patients (61.0%) achieved remission of symptoms to varying degrees. The main symptoms relieved were cough, asthmatic suffocating, pain and hoarseness. The major adverse events were mild skin rash (35.6%) and diarrhea (15.3%). Others were dry skin, nausea and stomach problems. The efficacy of icotinib hydrochloride were related to the ECOG performance status, smoking history, EGFR mutation and rash significantly (P < 0.05).</p><p><b>CONCLUSIONS</b>Monotherapy with icotinib hydrochloride is effective and tolerable for patients with advanced NSCLC, especially with EGFR mutation.</p>


Assuntos
Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Antineoplásicos , Usos Terapêuticos , Carcinoma Pulmonar de Células não Pequenas , Tratamento Farmacológico , Genética , Patologia , Éteres de Coroa , Usos Terapêuticos , Diarreia , Progressão da Doença , Exantema , Éxons , Seguimentos , Neoplasias Pulmonares , Tratamento Farmacológico , Genética , Patologia , Mutação , Estadiamento de Neoplasias , Quinazolinas , Usos Terapêuticos , Receptores ErbB , Genética , Indução de Remissão , Estudos Retrospectivos , Taxa de Sobrevida
8.
Chinese Medical Journal ; (24): 4345-4349, 2011.
Artigo em Inglês | WPRIM | ID: wpr-333562

RESUMO

<p><b>BACKGROUND</b>Her-2/neu gene overexpression has been found in several malignancies, and is associated with poor prognosis; while its role in the tumorigenesis and progression of prostate cancer (PCa) is still controversial. This study aimed to evaluate the prognostic value of Her-2/neu protein expression and clinicopathologic factors in antiandrogen-treated Chinese men with PCa for disease progression and PCa-specific death.</p><p><b>METHODS</b>Her-2/neu protein expression was determined using immunohistochemistry (IHC) in specimens collected from 124 prostate biopsies and transurethral resection of prostate (TURP) from seven prostate cancer patients.</p><p><b>RESULTS</b>Her-2/neu protein expression was 0, 1+, 2+, and 3+ in 40 (30.5%), 8 (6.1%), 67 (51.1%), and 16 (12.2%) cases, respectively. Her-2/neu protein expression showed significant correlation as judged by Gleason score (P = 0.049), clinical tumor-node-metastases (cTNM) stage (P = 0.018) and disease progression (P = 0.001), but did not correlate with prostate-specific antigen (PSA) (P = 0.126) or PCa-specific death (P = 0.585). PSA (P = 0.001), Gleason score (P = 0.017), cTNM (P = 0.000) and Her-2/neu protein expression (P = 0.001) had prognostic value for evaluating the progression of PCa in univariate analysis. In Kaplan-Meier plots, both Gleason score (P = 0.035) and cTNM (P = 0.013) correlated with PCa-specific death. In multivariate analysis, only cTNM was significant for both disease progression (P = 0.001) and PCa-specific death (P = 0.031).</p><p><b>CONCLUSIONS</b>Her-2/neu protein expression is significantly correlated with Gleason score, cTNM and disease progression, although it is not an independent predictor of disease progression and PCa-specific death. cTNM staging serves as an independent prognostic factor for disease progression and PCa-specific death.</p>


Assuntos
Idoso , Idoso de 80 Anos ou mais , Humanos , Masculino , Pessoa de Meia-Idade , Progressão da Doença , Estimativa de Kaplan-Meier , Prognóstico , Neoplasias da Próstata , Metabolismo , Mortalidade , Patologia , Receptor ErbB-2 , Metabolismo
9.
Chinese Journal of Industrial Hygiene and Occupational Diseases ; (12): 440-442, 2011.
Artigo em Chinês | WPRIM | ID: wpr-272571

RESUMO

<p><b>OBJECTIVE</b>To explore the effect of hemoperfusion(HP) about the patients of methamidophos poisoning.</p><p><b>METHODS</b>On the basis of comprehensive treatment,15 cases of severe acute methamidophos poisoning patients were treated with HP, Blood samples were collected at 7 time points, before and 5, 15, 30, 45, 60mins following the beginning and the end of hemoperfusion. Blood samples were used for measuring the concentration of methamidophos and perfusion devices were used for measuring the volume of methamidophos adsorbed by the device after hemoperfusion.</p><p><b>RESULTS</b>15 patients live in 12 cases, 3 cases of death. HP (former) blood Cholinesterase vigor were 662.60 + 632.05, HP (after) blood cholinesterase vigor were 2577.52 + 920.38 IU/L; The difference of blood Cholinesterase vigor between the before and after HP was statistically significant (P < 0.01). The patients' methamidophos concentration of blood when HP treated 45, 60, 120 min were respectively (851 + 672), (680 + 529), (587 + 520) microg /ml, there were significantly lower than that the patients' methamidophos concentration of blood who were before HP (1659 + 1105) microg/ml, a statistically significant difference (P < 0.01).</p><p><b>CONCLUSION</b>HP can be cut down obviously methamidophos poisoning patients serum concentrations of toxic, the experimental method directly prove the clinical application of carbon HP can really adsorption methamidophos.</p>


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Colinesterases , Metabolismo , Hemoperfusão , Métodos , Inseticidas , Intoxicação , Compostos Organotiofosforados , Intoxicação , Resultado do Tratamento
10.
Chinese Journal of Industrial Hygiene and Occupational Diseases ; (12): 660-663, 2010.
Artigo em Chinês | WPRIM | ID: wpr-313495

RESUMO

<p><b>OBJECTIVE</b>To investigate the effects of hydroquinone (HQ) on expression of topoisomerase IIα (TOPOIIα) in human bone marrow mononuclear cells, and to explore the role and possible regulatory mechanism of TOPOIIα involved in toxicity of HQ to hematopoietic cells.</p><p><b>METHODS</b>After human bone marrow mononuclear cells were exposed to 50 µmol/L HQ (used the cells which were exposed to sterile distilled water as control); the activity of TOPOII was measured by TOPOII assay kit; the expression levels of TOPOIIα mRNA and protein were detected by RT-PCR technique and Western blotting method respectively; the chromatin immunoprecipitation (ChIP) assay was carried out to study the possible mechanism of TOPOIIα expression changes.</p><p><b>RESULTS</b>(1) The activity of TOPOII was inhibited obviously; the protein and mRNA expression of TOPOIIα were 0.017 ± 0.029 and 0.610 ± 0.128, significantly lower than that in the control with the significant difference (P < 0.01) after treated with HQ for 10 h; (2) The decreased content of TOPOIIα was associated with descended level of histone H4 acetylation than in the control, from 1.198 ± 0.056 to 0.324 ± 0.229, with the significant difference (P < 0.01), without accompanied descended level of histone H3 acetylation, from 1.253 ± 0.045 to 1.177 ± 0.025 (P > 0.05); (3) TOPOIIα mRNA expression decreased gradually after HQ processing, and the chemical modification (histone H4 acetylation) of TOPOIIα promoter happened prior to the mRNA expression.</p><p><b>CONCLUSION</b>HQ could repress the expression of TOPOIIα in human bone marrow mononuclear cells; the change of histone chemical modification plays an important role in the benzene's hematopoietic toxicity.</p>


Assuntos
Adulto , Feminino , Humanos , Masculino , Adulto Jovem , Acetilação , Antígenos de Neoplasias , Metabolismo , Células da Medula Óssea , Metabolismo , Células Cultivadas , DNA Topoisomerases Tipo II , Metabolismo , Proteínas de Ligação a DNA , Metabolismo , Histonas , Metabolismo , Hidroquinonas , Toxicidade
11.
Chinese Journal of Otorhinolaryngology Head and Neck Surgery ; (12): 713-718, 2010.
Artigo em Chinês | WPRIM | ID: wpr-336890

RESUMO

<p><b>OBJECTIVE</b>To investigate the status of voice fatigue and throat disease in the secondary school teachers in Urumqi.</p><p><b>METHODS</b>This study included 11 689 teachers from 109 secondary schools offered by Teaching and Researching Center of Urumqi as the second-stage random sampling. Among them, 3217 teachers were selected to carry out voice fatigue test and routine examination of throat. For those with abnormal routine inspection results, the stroboscopic laryngoscopy were added.</p><p><b>RESULTS</b>The failure rate difference of 3217 secondary school teachers voice fatigue tests during different periods had statistical significance (F = 202.653, P < 0.05). The failure rate difference of voice fatigue test among different throat diseases groups had statistical significance (F = 9.516, P < 0.05). There was statistical significance in failure rates of the voice fatigue tests between 908 cases of disease group and 2309 cases of normal group among different genders and periods (P < 0.05). Female teachers had higher failure rates than male teachers in voice fatigue tests. High failure rates appeared when high volume required for male and female teachers in voice fatigue tests. There was statistical significance in mean value sound pressure level (MVSPL) and mean value fundamental frequency (MVF0) of the voice fatigue tests between different gender and periods (P < 0.05). Male teachers had higher MVSPL than female teachers, female teachers had higher MVF0 than male teachers. There was statistical significance in failure rates of the voice fatigue tests among teachers from different tribes in different periods (P < 0.05). The Uighur had the highest failure rate, while Han had the lowest. Make further pairwise comparisons, failure rates difference of the Han and the Uighur in the voice fatigue tests during different periods had statistical significance. Comparison among other tribes had no statistical significance (P > 0.05).</p><p><b>CONCLUSIONS</b>Voice fatigue is common in secondary school teachers. Female teachers tend to get voice fatigue more easily, when required high volume, the voice fatigue is more serious. Uighurs teachers have highest degree of voice fatigue.</p>


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Docentes , Doenças Profissionais , Diagnóstico , Epidemiologia , Ensino , Distúrbios da Voz , Diagnóstico , Epidemiologia
12.
National Journal of Andrology ; (12): 801-805, 2009.
Artigo em Chinês | WPRIM | ID: wpr-241253

RESUMO

<p><b>OBJECTIVE</b>The progression of prostate cancer (PCa) after endocrine therapy varies widely in different PCa patients. This study aims to analyze the factors that influence the progression-free survival time of PCa patients after endocrine therapy in an attempt to improve the prognosis of the disease.</p><p><b>METHODS</b>We reviewed the clinicopathological data of 116 cases of prostate cancer treated by endocrine therapy, analyzed the clinicopathological factors that influence the progression-free survival time of PCa patients using univariate (log-rank test) and multivariate Cox proportional hazard models, and investigated the correlation among these factors by Spearman rank correlation analysis.</p><p><b>RESULTS</b>In the stepwise Cox proportional hazard model, the independent prognostic factors for PCa progression after endocrine therapy were found to be Gleason score (P < 0.01) and clinical stages (P < 0.01). The hazard of PCa progression after endocrine therapy increased 2.126 times that of the baseline for each unit of increase in Gleason score, and 6.625 times for each unit of increase in the clinical stage. The pretreatment PSA level was correlated with both clinical stages (P < 0.01) and Gleason score (P < 0.01).</p><p><b>CONCLUSION</b>Clinical stages and Gleason score were important factors that influenced the progression-free survival time after endocrine therapy in this cohort of PCa patients.</p>


Assuntos
Idoso , Idoso de 80 Anos ou mais , Humanos , Masculino , Pessoa de Meia-Idade , Intervalo Livre de Doença , Estadiamento de Neoplasias , Prognóstico , Modelos de Riscos Proporcionais , Próstata , Patologia , Neoplasias da Próstata , Mortalidade , Patologia , Terapêutica
13.
China Journal of Chinese Materia Medica ; (24): 42-46, 2008.
Artigo em Chinês | WPRIM | ID: wpr-324302

RESUMO

<p><b>OBJECTIVE</b>To investigate the anti-HIV constituents from the root of Mirabilis jalapa.</p><p><b>METHOD</b>The compounds were isolated by column chromatography on silica gel, Sephadex LH - 20, MCI-gel CHP-20P and RP-18. The structure were identified by means of NMR and MS analyses (1H-NMR, 13C-NMR, MS).</p><p><b>RESULT</b>Eleven compounds were isolated and identified as astragaloside II (1), astragaloside II (2), astragaloside IV (3), astragaloside VI (4), flazin (5), 4'-hydroxy-2, 3-dihydroflavone 7-beta-D-glucopyranoside (6), gingerglycolipid A (7), 3, 4-dihydroxybenzaldehyd (8), p-hydroxybenzaldehyde (9), beta-sitosterol (10) and daucosterol (11).</p><p><b>CONCLUSION</b>Compounds 1-9 were obtained from this genus for the first time.</p>


Assuntos
Benzaldeídos , Química , Carbolinas , Química , Cromatografia em Gel , Furanos , Química , Galactolipídeos , Química , Espectroscopia de Ressonância Magnética , Espectrometria de Massas , Mirabilis , Química , Raízes de Plantas , Química , Sitosteroides , Química
14.
Chinese Journal of Pediatrics ; (12): 93-95, 2005.
Artigo em Chinês | WPRIM | ID: wpr-289308

RESUMO

<p><b>OBJECTIVE</b>To assess the state of glucose metabolism and beta-cell function in obese and overweight children.</p><p><b>METHODS</b>Levels of glucose and insulin were detected during oral glucose tolerance test in 52 obese and overweight children aged 11.3 +/- 1.8 years with body mass index (BMI) 30.2 +/- 19.2 kg/m(2). Insulin resistance index (IR = FIN x FPG/22.5), insulin sensitivity index (IS = 1/FIN x FPG) and ratio of insulin increment to glucose increment at 30' (I(30)-I(0)/G(30)-G(0)) post oral glucose were measured. (FIN = fasting insulin. FPG = fasting plasma glucose). The IR, IS and the ratio post oral glucose were compared among groups with varying BMI and between groups of impaired glucose tolerance (IGT) and control. Serum triglyceride determination and B ultrasonography of liver were performed.</p><p><b>RESULTS</b>(1) one patient with type 2 diabetes (1.9%) and 5 patients with IGT (9.6%) were found. (2) IR (> or = 2.8) was observed in 76.9% of the cases. (3) The IR, IS and their ratio showed no difference between the compared groups. (4) IR and IS did not show significant difference but there was significant difference in ratio between the IGT and control group. (5) Increased serum triglyceride and fatty liver were noted in 36.5% and 53.3% of the cases, respectively.</p><p><b>CONCLUSION</b>The results indicated that insulin resistance and reduced insulin sensitivity in obese and overweight children are common, and these changes seemed not to correlated with the varying degree of BMI. Beta-cells function was obviously impaired in obese children with IGT and disorder of lipid metabolism exists in many obese and overweight children revealed.</p>


Assuntos
Adolescente , Criança , Feminino , Humanos , Masculino , Índice de Massa Corporal , Teste de Tolerância a Glucose , Insulina , Secreções Corporais , Resistência à Insulina , Obesidade , Metabolismo , Sobrepeso , Metabolismo
15.
Chinese Journal of Pediatrics ; (12): 453-456, 2003.
Artigo em Chinês | WPRIM | ID: wpr-276894

RESUMO

<p><b>OBJECTIVE</b>Prader-Willi syndrome (PWS) is an example of a human genetic disorder that involves imprinting genes on the proximal long arm of chromosome 15 and SNRPN gene as a candidate gene for this syndrome. The purpose of this study was to show the molecular genetic defects and genomic imprinting basis in Chinese PWS patients and to evaluate the clinical applications of a differential diagnostic test for PWS.</p><p><b>METHODS</b>Fluorescence in situ hybridization (FISH) and methylation-specific PCR (MSPCR) techniques were applied for 4 clinically suspected PWS patients. Using three probes, including SNRPN probe for identification of the critical locus in PWS region, D15Z1 and PML control probes for identification of the 15p arm and 15q arm, the authors detected the deletions 15q in PWS. MSPCR was based on sodium bisulfite treatment of DNA and PCR primers specific for the maternal and paternal allele.</p><p><b>RESULTS</b>When hybridized with mixed probes, it was found in 2 patients that the central specific signal was absent, but both the flanking control signals were retained, indicating SNRPN gene deletion of chromosome 15q11-13. Bisulfite-modified DNA from all PWS children amplified with methylated allele-specific primer pair showed only maternal 131bp PCR product, indicating the maternal uniparental disomy (UPD15).</p><p><b>CONCLUSION</b>Genomic imprinting plays an important role in the molecular pathogenesis of PWS that caused by paternal microdeletions of 15q11-q13 or maternal UPD of chromosome 15. The basic defect seemed to be an absence of function of PWS genes that are normally expressed only from the paternal chromosome 15. MSPCR is a rapid and simple PCR-based assay compared with other cyto-molecular tests and its results were consistent with the clinical diagnosis of PWS, so it seems to be a reliable diagnostic method for PWS patients who show abnormal methylation at SNRPN. The genetic differential tests for PWS are important in determining familial recurrence risk.</p>


Assuntos
Adolescente , Humanos , Masculino , Autoantígenos , Deleção Cromossômica , Cromossomos Humanos Par 15 , Genética , Deleção de Genes , Impressão Genômica , Genética , Hibridização in Situ Fluorescente , Reação em Cadeia da Polimerase , Métodos , Síndrome de Prader-Willi , Genética , Ribonucleoproteínas Nucleares Pequenas , Genética , Proteínas Centrais de snRNP
16.
China Journal of Chinese Materia Medica ; (24): 524-527, 2003.
Artigo em Chinês | WPRIM | ID: wpr-282277

RESUMO

<p><b>OBJECTIVE</b>To investigate the anti-HIV constituents from the root of Polygonatum kingianum.</p><p><b>METHOD</b>The compounds were isolated by column chromatography on silica gel, Sephadex LH-20, MCI-gel CHP-20P and their structures were determined on the basis of their spectroscopic evidence including IR, MS and NMR data.</p><p><b>RESULT</b>13 compounds were isolated, of which nine compounds were identified as liquiritigenin, isoliquiritigenin, 4', 7-dihydroxy-3'-methoxyisoflavone, (6aR, 11aR)-10-hydroxy-3, 9-dimethoxypterocarpan, 5-hydroxymethyl-2-furancarboxaldehyde, salicylic acid, n-butyl-beta-D-fructopyranoside, n-butyl-beta-D-fructofuranoside, n-butyl-alpha-D-fructofuranoside.</p><p><b>CONCLUSION</b>Compounds 1-6 were obtained from this plant for the first time.</p>


Assuntos
Chalcona , Química , Chalconas , Flavanonas , Flavonoides , Química , Raízes de Plantas , Química , Plantas Medicinais , Química , Polygonatum , Química , Ácido Salicílico , Química
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