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Abnormal tumour cell adhesion is a key step in tumour metastasis, in which weakened homologous and enhanced heterologous adhesion of tumour cells is an important cause of tumour metastasis. Chronic stress can activate the sympathetic nervous system to link and regulate the homologous and heterologous adhesion of tumour cells and exacerbate tumour metastasis. Combining the understanding of traditional Chinese medicine (TCM) and Western medicine on tumour metastasis, it is believed that the mechanism of "qi constraint and stagnation, tumor toxin transmission and retention" in TCM theory is highly related to the abnormal adhesion of tumour cells triggered by chronic stress. Qi constraint and stagnation is closely related to chronic stress and its activation of the sympathetic nervous system, and transmission and retention of tumor toxin explained the mechanism of tumour metastasis due to abnormal adhesion of tumour cells from the perspective of TCM. By regulating the key link of sympathetic nervous system-tumour cell adhesion, application of the formulas of regulating qi and resolving toxin can improve chronic stress and inhibit tumour metastasis.
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Objective@#To understand the status and associated factors of knowledge, attitude and practice (KAP) about myopia prevention and control among young children s parents in Guangzhou, so as to provide reference for family health education on myopia prevention and control.@*Methods@#During January to February 2023, 4 584 parents of children from kindergarten and primary school (grade 1-3) were recruited. Two to three kindergartens and 2 primary schools were selected from each of the 3 urban districts and 2 suburb districts of Guangzhou by stratified cluster random sampling method. Parents of children were administered with online questionnaire survey on KAP about myopia prevention and control. Descriptive analyses and multivariate Logistic regression models were used.@*Results@#The proportion of parents reaching standard of KAP about myopia prevention and control was 61.54%, the knowledge awareness rate was 57.30%, the positive attitude holding rate was 76.98% and the health practice formation rate was 63.31 %. Internet (70.35%) and lectures on school health education/health education materials (66.14%) were the most common ways for obtaining knowledge for parents. Multivariate Logistic regression analysis showed that urban area, higher education ( college /undergraduate or above), annual household income 50 000-90 000, 100 000-290 000, 300 000-490 000, 500 000- 590 000 , and ≥600 000 Yuan, being aware of vision status (normal/poor) of their children, one or both parents with myopia, both parents with non myopia, acquiring knowledge by multi ways(2, 3, ≥4) were associated with higher KAP about myopia prev ention and control ( OR =1.23, 1.34, 1.36, 1.25,1.49, 1.93, 2.34, 1.64, 1.66, 1.89, 3.48, 3.09, 2.42, 1.65, 2.29, 3.22, P < 0.05).@*Conclusion@#Knowledge and practice about myopia prevention and control among young children s parents in Guangzhou are insufficient, yet the attitude was satisfactory. It is necessary to carry out targeted education for parents, especially those living in suburb area, with low education and income level.
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Using high-resolution dendrometers, we monitored the intra-annual stem radial variations of Abies georgei and Larix potaninii in the subalpine coniferous forest in Baima Snow Mountain, Northwest Yunnan Province. The seasonal dynamics of stem radial growth of both species and their responses to environmental factors were analyzed. The results showed that the stem radial growth of A. georgei and L. potaninii mainly occurred during April to August, with the maximum growth rate in June. Compared with A. georgei, L. potaninii showed an earlier start but later cessation of stem radial growth, resulting in longer growth duration. Annual radial growth and maximum radial growth rates of L. potaninii were slightly higher than those of A. georgei. Daily growth rate of A. georgei was positively correlated with precipitation, but negatively correlated with vapor pressure deficit and air temperature. Daily growth rate of L. potaninii was positively correlated with precipitation, but negatively correlated with soil volume water content and vapor pressure deficit. Radial growth of A. georgei and L. potaninii was limited by water availability, with L. potaninii being more sensitive to moisture. Under the background of global warming, the increase of plant transpiration and soil evaporation might further aggravate soil water loss and reduce water availability for plants, which would make A. georgei and L. potaninii more vulnerable to drought stress.
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Abies , Larix , China , Larix/fisiologia , Solo , ÁguaRESUMO
Objective:To optimize proportion of couplet medicine of Bupleuri Radix and Scutellariae Radix in the treatment of anti-depression, and to explore the possible antidepressant mechanism of this couplet medicine. Method:The dosages of Bupleuri Radix and Scutellariae Radix in the 2015 edition of Chinese Pharmacopoeia were taken.According to U7(72) uniform design table, Bupleuri Radix and Scutellariae Radix were carried out into 7 groups.The chronic unpredictable mild depression model mice were induced by intragastric administration of decoction of this couplet medicine and the antidepressant effect was observed by the behavior tests, which included sucrose preference test, tail suspension test, forced swimming test and open field test(crossing scores).The regression equations were established by selecting the effective indexes.The experiments of retest were taken to check the results and the possible antidepressant mechanism was primarily investigated by measuring the phosphorylation level of cyclic adenosine monophosphate(cAMP)-response element binding protein(CREB) and expression of brain-derived neurotrophic factor(BDNF). Result:Compared with the blank group, sucrose preference rate of the model group was significantly decreased(PPPPPPPPPPPPPPConclusion:Compatibility of Bupleuri Radix and Scutellariae Radix can ameliorate depressive-like behavior of model mice, and the best antidepressant compatibility proportion of Bupleuri Radix and Scutellariae Radix is 1:1, the optimal amounts of them are about 5 g.The antidepressant effect may relate to promoting phosphorylation level of CREB and the expression of BDNF in the hippocampus.
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Saikosaponin-d (SSd), one of the main constituents of the total saikosaponins extracted from Bupleurum falcatum L, possesses anti-inflammatory and anti-apoptosis effect. Recently, SSd was proved to improve depressive symptoms although exhibit hepatotoxicity in animals, but the central nervous system (CNS) toxicity of SSd remains unclear. The present study investigated the SSd-induced impairment in hippocampal cognitive function and explored the possible mechanisms involved. After intragastric administration of SSd (4mg/kg, 8mg/kg) for 7days, the learning and memory abilities of mice were evaluated by behavioral experiments. In the step-down passive avoidance test, we found that the mice treated with SSd showed a significant decrease of step-down latency and increase of the frequency of errors. In the Morris water maze task, both the escape latency and swimming distance of the mice treated with SSd were increased, correspondingly, both the time of mice staying in the target zone and the frequency of crossing platform were decreased. These neurobehavioral changes were accompanied by the reduction of the expression of 5-bromo-2'-deoxyuridine (BrdU), nestin, doublecortin (Dcx) and microtubule associated protein 2 (MAP2). Moreover, SSd significantly inhibited the expression of p-Akt, Foxg-1 and fibroblast growth factor 2 (FGF2) in the hippocampus of mice. These results indicated that SSd had a toxic effect on cognitive function in mice, which was associated with inhibiting the hippocampal neurogenesis via Akt/Foxg1 pathway.
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Disfunção Cognitiva/induzido quimicamente , Fatores de Transcrição Forkhead/metabolismo , Hipocampo/efeitos dos fármacos , Proteínas do Tecido Nervoso/metabolismo , Neurogênese/efeitos dos fármacos , Ácido Oleanólico/análogos & derivados , Proteínas Proto-Oncogênicas c-akt/metabolismo , Saponinas/toxicidade , Animais , Aprendizagem da Esquiva/efeitos dos fármacos , Comportamento Animal/efeitos dos fármacos , Disfunção Cognitiva/metabolismo , Relação Dose-Resposta a Droga , Proteína Duplacortina , Hipocampo/metabolismo , Masculino , Aprendizagem em Labirinto/efeitos dos fármacos , Camundongos Endogâmicos ICR , Ácido Oleanólico/toxicidade , Transdução de SinaisRESUMO
Aim To investigate the effects of astragalus polysaccharide (APS) on renal TGF-β1/Smads signa-ling pathway in rats with diabetes mellitus(DM). Methods Wistar rats were randomly divided into nor-mal group,DM group,APS low dose (APS-low) group and APS high dose (APS-high) group. Rats in APS-low group and APS-high group respectively received 200 and 400 mg·kg-1·d-1APS for 8 weeks. Con-centrations of fasting blood-glucose(FBG),blood urea nitrogen and creatinine,as well as urinary kidney injury molecule-1 (KIM-1) and osteopontin (OPN) were measured. Levels of TGF-β1,Smad2,phosphorylated Smad2 (p-Smad2),Smad3,phosphorylated Smad3 (p-Smad3),Smad7,matrix metalloproteinase (MMP) 2,MMP-9,tissue inhibitor of matrix metalloproteinases (TIMP)-1 and TIMP-2 were investigated. Results Compared to control group,DM group had higher levels of FBG,blood urea nitrogen,creatinine KIM-1,OPN, TGF-β1,Smad2,p-Smad2,Smad3,p-Smad3,TIMP-1 and TIMP-2,but lower levels of Smad7,MMP-2 and MMP-9. APS significantly decreased the levels of FBG,blood urea nitrogen,creatinine KIM-1 and OPN, as well as inhibited the activity of TGF-β1/Smads sig-naling pathway. Conclusion The renoprotective effects of APS might be associated with the inhibition of TGF-β1/Smads signaling pathway.
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Aim To investigate the effects of astragalus polysaccharide ( APS ) on depressive behaviors and hippocampal NF-κB signaling in rats with depression. Methods Wistar rats were randomly divided into con-trol group, depressive group, APS-low (200 mg·kg-1 ·d-1 ) group and APS-high ( 400 mg · kg-1 · d-1 ) group. Depressive behaviors were induced by chronic unpredictable mild stress ( CUMS) in rats. After trea-ted with APS, depressive behaviors were valuated by open field test, forced swim test and sucrose preference test. Levels of NF-κB p65, phosphorylated NF-κB p65 ( p-NF-κB p65 ) , phosphorylated IκBα ( p-IκBα) , NF-κB p65 DNA binding activity, TNF-α, IL-1β and IL-6 were measured to assess the activity of NF-κB sig-naling pathways. Results Compared to control group, rats in depressive group had less sucrose intake in su-crose preference and longer immobility time in forced swim test, as well as increased hippocampal NF-κB signaling activity. However, APS treatment dose-de-pendently alleviated depressive-like behaviors and in-hibited the activation of NF-κB signaling induced by UCMS. Conclusion The antidepressant effects of APS might be associated with the inhibition of hipp-ocampal NF-κB signaling pathway.
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Objective To establish the quality standard for Baibu Zhike syrup .Methods TLC method was used for qualitative identification of Stemonae Radix and Platycodonis Radix .The content of hesperidin in Citri Exocarpium Rubrum was determined by HPLC method on C18 column with mobile phase of acetonitrile-water (18:82) .The detection wavelength was 284 nm .Results The clear spots on TLC indicated a good separation with no interference to negative control .The linear range of hesperidin was 0 .0669-1 .6725μg (r=0 .9999) .The average recovery was 96 .6% .Conclusion This method is sim-ple ,rapid and reproducible .It can be used for the quality control of Baibu Zhike syrup .
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Objective: To establish the quality standard for Zhike Qutan oral liquid.Methods: A TLC method was used for the qualitative identification of Platycodonis Radix and Glycyrrhizae Radix et Rhizoma;the content of belamcandin in Belamcandae Rhizoma was determined by an HPLC method on a Waters Symmetry C 18 column(150 mm× 4.6 mm , 3.5 μm)with the mobile phase consisting of acetonitrile-water (14∶86), the flow rate was 1.0 ml·min-1 , the column temperature was 35℃ and the detection wavelength was 265 nm.Results: The TLC spots were clear without interference from the negative control.The linear range of belamcandin was 0.115-2.880 μg (r=0.999 9),and the average recovery was 92.44% (RSD=1.83% , n =6).Conclusion: The method is simple and rapid with good reproducibility, which can be used for the quality control of Zhike Qutan oral liquid.
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AIM: To explore the nursing cooperation highlights of eight osteopetrosis patients underwent optic nerve decompression via transsphenoidal microsurgical approach instead of routine pathway, and to improve the quality of nursing cooperation. ·METHODS: We enrolled 8 cases ( left eye in 3 cases, right eye in 5 cases ) of osteopetrosis patients referred from the Eye Hospital of Wenzhou Medical University during February 2012 to November 2016. Patients received ophthalmic examinations including visual acuity and diagnostic imaging tests in pre-operation and post -operation. All eyes were performed surgical optic nerve decompression through endoscopic approach in assist of image guidance system. We retrospectively analyzed the clinical data and surgical cooperation procedure of these cases and summarized nursing cooperation experience. ·RESULTS:The operations of 8 patients were completed successfully without massive hemorrhage. Mean visual acuity improved from pre-operation (2. 5±2. 1) to post-operation (3. 4±1. 9). Cerebrospinal fluid leakage occurred in 1 patient and was instantly repaired during the operation. We performed the nursing strategy as postural drainage, condition monitoring and conscious assessment intra-and post-operation. ·CONCLUSION: It is the critical for this kind of surgery that both circulating nurse's high-skilled cooperation to the connection and operation of the navigation system, to treat with complication during the surgery, and scrub nurse's sufficient preparation of surgical instruments and consumables, proficient equipment delivery, meticulous management, use and maintenance of equipment.
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ObjectiveTo report the treatment of the first imported Middle East respiratory syndrome (MERS) in China, and to investigate the clinical features and treatment of the patient.Methods On May 28th, 2015, the first patient of imported MERS to China was admitted to Department of Critical Care Medicine of Huizhou Municipal Central Hospital. The clinical features and treatments of this patient were analyzed.Results①A 43 years old male of South Korean nationality was admitted with the complaint of back ache for 7 days and fever 2 days with the following characteristics: back ache 7 days ago, without fever or cough or expectoration. He had been suspected to suffer from infection of Middle East respiratory syndrome coronavirus (MERS-CoV) by the Disease Control Department of South Korea, but no specific treatment was given. He had fever for 2 days with maximum body temperature of 39.7℃. He had no chills, cough, expectoration, short of breath, abdominal pain, diarrhea, frequent micturition, or urgency or pain of urination, and no sore throat. The patient had a history of exposure to MERS-CoV patient. He was considered to be a patient of the second batch of South Korean epidemic.② Auxiliary examination: 3 copies of throat swab specimens for virus nucleic acid detection were performed by the Disease Prevention Control Center of China (China CDC), and they were positive on May 29th, 2015, and also for serum, sputum and stool. Based on the results of whole genome sequence analysis, the virus strains were implicated to be derived from Riyahh and Jeddah regions of Saudi Arabia. On admission, the patient's blood test showed that the white blood cell count was low (3.22×109/L), the proportion of the neutrophils was high (0.73), and that of the platelet was low (81×109/L). On admission, the patient's chest X-ray showed that a small amount of infiltration in the lung.③ Treatment: a high-flow nasal cannula (HFNC) with oxygen concentration of 0.50-0.80 was given, with a flow rate was set at 60 L/min if tolerated. It was changed to a low flow oxygen inhalation nasal cannula on the 20th day, and oxygen treatment was stopped on the 24th day. Ribavirin 2.0 g was given as the first dose, and was switched to 600 mg every 8 h (q8h), and it was reduced to 600 mg q12h after 10 days, and extenuated since the 13th day. Ceftriaxone was added on the 4th day with 2.0 g a day , and it was changed to meropenem 2.0 g, q8h on the 7th day for 2 weeks. Gamma globulin was given for 7 days (20 g, qd). Thymosin-α1 was given on the 8th day for 2 weeks. Interferon was given once a week, but only one dose was used. At the same time symptomatic treatment such as methimazole and liver protection therapy were given.④ Patient began to cough at admission, and it disappeared on the 18th day. There was no sputum at first, then a small amount of sputum with a little blood appeared after the admission. Then there was cough without sputum. Mild shortness of breath and diarrhea after exertion were noticed. He had no chest pain, difficulty in breathing or other symptoms. There was dullness on percussion in both sides of chest, and it disappeared gradually. Fine moist rales were detectable in scapular area and interscapular area on the 5th day, and they disappeared after 3 days. Breath sounds on both sides was weak, and it became more obvious in the right lung after 5 days, and returned to normal after 18 days. He had a sustaining fever for 1 week with the maximum temperature of 39.5℃, then the body temperature returned to normal. The viral nucleic acid test as performed by the Center for Disease Control of Guangdong (CDC, Guangdong) showed that the pharyngeal swab cultured turned negative on the 3rd day, that of serum specimens turned negative on the 8th day, that of stool specimen after 2 weeks, and it was persistently positive for sputum culture until 5 days before discharge. The oxygenation index gradually increased, and it was over 300 mmHg (1 mmHg = 0.133 kPa) after 15 days. Pleural effusion was rapidly increased during the first week as shown by chest X-ray films, and it began to be absorbed gradually in the second week, but it was not completely absorbed until discharge.Conclusions The disease course of the reported patient was short, with an acute onset, with fever as the chief complaint, but there were no respiratory symptoms, though there were high fever, cough, shortness of breath, diarrhea and other clinical symptoms after admission. Virus in sputum disappeared after treatment, but pleural effusion was not completely absorbed. Negative test for virus in sputum was late, indicating that clearance of virus was slow from the lungs. It is the first case of MERS in China, therefore, the clinical manifestations and the treatment strategy need to be further explored.
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ObjectiveTo investigate the value of high flow nasal cannula (HFNC) in treating a patient with Middle East respiratory syndrome (MERS).Methods The effect of HFNC applied in the first imported MERS patient with complication of acute respiratory distress syndrome (ARDS) to China was observed. The patient was admitted to Department of Critical Care Medicine of Huizhou Municipal Central Hospital on May 28th, 2015, and the changes in various clinical parameters and their significance were analyzed.Results A 43-year old male was admitted to negative pressure isolation intensive care unit with the complaint of back ache for 7 days and fever for 2 days. Vital signs and saturation of pulse oximetry (SpO2) were monitored continuously. After admission, ribavirin was given orally for 12 days andα-interferon was administered once on the first day. However, after 2-week anti-virus therapy, the virus test was positive. Ceftriaxone was given on the 4th day, and it was changed to meropenem on the 3rd day for 2 weeks. Immune globulin was given on the 4th day and continued for 1 week. Thymosin-α1 was given on the 8th day and continued for 2 weeks. According to his past history, methimazole had been given continuously for hyperthyroidism and other symptomatic treatment. Oxygen inhalation (6 L/min) was given immediately after admission, but the condition of patient worsened with the following symptoms: frequent cough and obvious shortness of breath. Moreover pleural effusion gradually increased as shown by X-ray. SpO2 was maintained only at about 0.91. Oxygenation index (PaO2/FiO2) decreased to 144 mmHg (1 mmHg = 0.133 kPa). So oxygen inhalation via nasal cannula was changed to HFNC after 2 days. The parameters were set as follows: temperature 34℃, flow rate 20 L/min, fraction of inspired oxygen (FiO2) 0.50. The flow was raised 5 L/min every 10 minutes, and was continued till the target value reached 60 L/min. FiO2 was modified according to SpO2 and PaO2/FiO2. FiO2 was set to 0.80 on the 5th day of admission. Shortness of breath of the patient was improved on the 7th day of admission after the application of HFNC. FiO2 was then decreased to 0.58 as PaO2/FiO2 rose. Then the flow was gradually decreased to 30 L/min. HFNC was reduced with continuous improvement in PaO2/FiO2. HFNC was changed to low flow oxygen inhalation nasal cannula (2-3 L/min) on the 20th day. Oxygen treatment was stopped on the 23rd day, and SpO2 was maintained at 0.98-1.00. Activities on bed were gradually increased. The patient was cured and discharged from hospital on June 26th. The patient showed good tolerance and high compliance during the treatment with HFNC. No nosocomial spread occurred during the treatment.ConclusionsHFNC could improve respiratory function of the patient with MERS obviously, and complication ARDS was prevented. HFNC might reduce nosocomial spread.
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AIM@#In a previous study, the anti-inflammatory effects of tectorigenin were disclosed. In this study, the anti-inflammatory effects of tectorigenin on acute lung injury using a lipopolysaccharide (LPS)-induced acute lung injury (ALI) mouse model were investigated@*METHOD@#The cell-count in the bronchoalveolar lavage fluid (BALF) was measured. The animal lung edema degree was evaluated by the wet/dry weight (W/D) ratio. The superoxidase dismutase (SOD) activity and myeloperoxidase (MPO) activity was assayed using SOD and MPO kits, respectively. The levels of inflammatory mediators, including tumor necrosis factor-α (TNF-α), IL-1β, and IL-6 were assayed using an enzyme-linked immunosorbent assay method. Pathological changes of lung tissues were observed through HE staining. The inflammatory signal pathway related protein nuclear factor NF-κB p65 mRNA expression was measured by real-time PCR, and the protein level of NF-κB p65 was measured using Western blotting analysis.@*RESULTS@#The data showed that treatment with the tectorigenin markedly attenuated the inflammatory cell numbers in the BALF, decreased nuclear factor NF-κB p65 mRNA level and protein level in the lungs, and improved SOD activity and inhibited MPO activity. Histological studies showed that tectorigenin substantially inhibited LPS-induced neutrophils in lung tissue compared with the model group.@*CONCLUSION@#The results indicated that tectorigenin had a protective effect on LPS-induced ALI in mice.
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Animais , Feminino , Camundongos , Lesão Pulmonar Aguda , Tratamento Farmacológico , Patologia , Líquido da Lavagem Broncoalveolar , Biologia Celular , Contagem de Células , Inflamação , Tratamento Farmacológico , Patologia , Isoflavonas , Usos Terapêuticos , Lipopolissacarídeos , Camundongos Endogâmicos BALB C , Peroxidase , Edema Pulmonar , Patologia , Superóxido DismutaseRESUMO
<p><b>OBJECTIVE</b>To assess the diagnostic value of magnetic resonance imaging (MRI) in the follow-up of patients with hepatocellular carcinomas treated with radiofrequency ablation (RFA) and to compare it with that of computed tomography (CT).</p><p><b>METHODS</b>From December 2009 to September 2011, 40 patients (47 hepatocellular carcinomas) were treated with RFA after transcatheter arterial chemoembolization and underwent MRI and CT for follow-up. RFA margins were assessed on a five-point scale with receiver operating characteristic curve analysis. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were evaluated.</p><p><b>RESULTS</b>The interobserver agreement rate for MRI was significantly higher (Kappa=0.935) than for CT (Kappa=0.714; P < 0.05). The scores of 1 and 5 points for MRI, which confirms the presence or absence of residual tumor, accounted for 89.4% (84/94), while for CT accounting for only 31.9% (30/94). The area under the receiver operating characteristic curve of MRI was significantly higher than that of CT (P < 0.05), as were the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of detection rate (mean, 100%, 96.4%, 76.9%, 100%, and 96.8% for MRI, respectively, vs. 30.0%, 57.1%, 10.3%, 87.7%, and 63.8% for CT).</p><p><b>CONCLUSION</b>MRI is superior to CT in assessing the RFA margins in terms of the diagnostic accuracy and detection rate .</p>
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Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Carcinoma Hepatocelular , Diagnóstico , Patologia , Cirurgia Geral , Ablação por Cateter , Neoplasias Hepáticas , Diagnóstico , Patologia , Cirurgia Geral , Imageamento por Ressonância Magnética , Neoplasia Residual , Diagnóstico , Estudos Retrospectivos , Sensibilidade e Especificidade , Tomografia Computadorizada por Raios XRESUMO
<p><b>BACKGROUND</b>Reliable early prediction response to therapy and time-to-progression (TTP) remain an important goal of high-grade gliomas (HGGs) research. Proton magnetic resonance spectroscopy ((1)H-MRS) has been applied with variable success in clinical application, and we hypothesize that (1)H-MRS in predictive value should perform well as a marker of TTP in patients treated with radiotherapy (RT) after surgery.</p><p><b>METHODS</b>(1)H-MRS was performed before surgery on 25 patients who had undergone resection of HGGs; then the ratios of lipid/creatine (Lip/Cr) and myo-inositol/creatine (mI/Cr) were determined in the solid tumor. RT response was classified as follows: complete resolution (CR), partial response (PR), stable disease (SD), and progressive disease (PD) by comparison of pre-treatment and post-radiotherapy scans. TTP was defined at the time to radiographic progression by MacDonald criteria. Correlation was evaluated between the ratios of Lip/Cr, mI/Cr and treatment response, TTP. The chi-square test and Pearson correlation test were used for data analyses.</p><p><b>RESULTS</b>Multivariate analysis revealed that the prognostic value of spectroscopic variables was independent of age, sex, WHO histologic grade, extent of surgery, and Karnofsky score (KPS). The correlation between the ratios of lipid/Cr and TTP was significant (r = 0.894, P = 0.000), and between the ratios of mI/Cr and TTP was also significant (r = 0.891, P = 0.000). As predicted, RT response correlated significantly with TTP (r = 0.59, P = 0.002): median TTP was 49.9 days for patients with PD compared with 202.7 days for SD, 208.0 days for PR, and 234.5 days for CR.</p><p><b>CONCLUSION</b>The ratios of Lip/Cr and mI/Cr of the solid tumor region before surgery could provide important information in predicting RT response and TTP in patients with HGGs treated by radiation alone after surgery.</p>
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Humanos , Glioma , Radioterapia , Cirurgia Geral , Espectroscopia de Ressonância Magnética , Métodos , Análise MultivariadaRESUMO
Objective To investigate the incidence of Keshan disease(KSD) in Shandong province and to supply evidence for scientific control of the disease.Methods According to the scheme of KSD monitoring in Shandong province,the KSD cases were searched in 7 counties,and representative 3 counties and 6 villages were selected as key monitoring sites.In each site,about 420 residents were checked by asking detailed disease history,physical examination,and electrocardiography (ECG) tracings.Suspected cardiac abnormalities were taken chest posteroanterior X-ray film.At the same time,residents hair and food samples were collected to detect selenium levels in internal and external environments,and residents' income and per capita share of grain and other basic information were collected.Results ①Two hundred and fifty-nine medical units were searched,1132 cases of myocardial disease were found out and 638 suspected cases were identified and 142 chronic KSD cases were diagnosed.②In the 6 monitoring sites,2538 residents were surveyed and 91 cases of KSD were detected(of which 77 cases of potential,14 cases of chronic),the detection rate was 3.58%.A total of 2127 residents were traced ECG and the incidence of abnormal ECG was 24.5% (521/2127),of which ST-T changes,T-wave changes,sinus bradycardia,sinus arrhymia,sinus tachycardia,and atrial premature beats et al were more common.Of the 75 X-ray films,39 cases had enlarged heart(in which 21 of mild,13 of moderate,5 of severe).③A total of 406 hair and grain samples were collected,respectively,and the selenium content of hair was approaching the level of appropriate,and the selenium content of food was still low.The annual per capita incomes of each site were between 3000 - 5900 Yuan,and residents main staple food was flour.Conclusions KSD in Shandong province is in a relatively stable situation.But latent and chronic KSD cases can still be detected.The internal environment selenium levels are elevated since the local living standards and dietary nutrition are improved.
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<p><b>BACKGROUND</b>Although three-dimensional MRI (3D-MRI) of short T1 inversion recovery turbo spin-echo (STIR TSE) has showed superior to two-dimensional MRI (2D-MRI) in showing the spinal cord and lumbar nerve roots, it remains difficult in demonstrating radicular vein at present. We have found that short T1 inversion recovery long time echo (STIR LONG TE) was better in showing radicular vein. To further study the methods and character of the 3D-MRI of lumbar nerve root, ganglions and radicular vein in normal and lumbar disc herniation (LDH) adults, in the present study, we evaluated two 3D-MRI techniques, STIR TSE and STIR LONG TE for demonstrating lumbar nerve roots and especial radicular vein in normal and LDH adults.</p><p><b>METHODS</b>Twelve normal adult persons and 19 LDH patients were included in this study; special oblique coronal location was adopted. STIR TSE and STIR LONG TE were performed in all participants, and the detection rates of radicular vein and nerve root of L3, L4, L5, S1 were calculated. The grading system was used in grading compromise of the intraspinal extradural lumbar nerve root, ganglion and radicular vein in LDH patients, and all the grading injury of nerve root, ganglion and radicular vein had been evaluated.</p><p><b>RESULTS</b>The definite rate of radicular vein (DRRV) of 3D-MRI of STIR LONG TE was significantly different from that of STIR TSE. DRRV of STIR LONG TE was L3, 91.7%, L4, 100%, L5, 100%, S1, 100% and that of STIR TSE was L3, 33.3%, L4, 37.5%, L5, 58.3%, S1, 45.8% in normal adults. It showed no difference between STIR LONG TE and STIR TSE in the detection rate of nerve root. The different patho-injuries of nerve root, ganglion and radicular vein could be seen in all LDH patients by the 3D-MRI of STIR LONG TE. The mean score of Japanese Orthopaedic Association (JOA) was 16.16, and 29 nerve roots were calculated in all the study. The mean grading injury of nerve root was 2.17, that of nerve root ganglion was 1.28, that of radicular vein was 1.83, and the mean co-grading injury of nerve root, ganglion and radicular vein was 5.31. The correlation coefficient was 0.478 (P = 0.010) between the score of JOA and that of radicular vein.</p><p><b>CONCLUSION</b>The 3D-MRI of STIR LONG TE is superior to STIR TSE for not only detecting the lumbar nerve root, ganglion and especial radicular vein in normal adults, but also displaying their patho-injuries degree in LDH patients.</p>
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Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Deslocamento do Disco Intervertebral , Patologia , Vértebras Lombares , Imageamento por Ressonância Magnética , Métodos , Raízes Nervosas Espinhais , Patologia , Veias , PatologiaRESUMO
<p><b>OBJECTIVE</b>To investigate the relationship between RASSF1A gene expression and DNA methylation or histone modification in laryngeal carcinoma tissues.</p><p><b>METHODS</b>Chromatin immunoprecipitation (ChIP), methylation specific polymerase chain reaction (MSP) and realtime quantitative reverse transcription polymerase chain reaction (realtime RT-PCR) were used to analyze RASSF1A gene promoter region histone H3 lysine 9 methylation, H3 lysine 4 methylation, H3 lysine 9 acetylation, DNA methylation, and RASSF1A gene expression in laryngeal carcinoma tissue of 50 cases.</p><p><b>RESULTS</b>DNA methylation rate of gene RASSF1A was 62% in 50 cases of laryngeal carcinoma, but no DNA methylation was found in normal control group, with a significant difference (χ(2) = 15.381, P < 0.05). DNA methylation had no correlation with age, gender, differentiation degree, T stage, pathological type and lymph node metastasis (P > 0.05). The affection of DNA methylation group was more than unmethylation group to expression of gene RASSF1A (t = -3.108, P < 0.01). There was positive correlation between RASSF1A deletion and gene hypermethylation or between H3 lysine 9 methylation of RASSF1A gene promoter and DNA methylation in laryngeal carcinoma tissue(r = 0.816, P < 0.05), but there was negative correlation between H3 lysine 4 methylation of RASSF1A gene promoter and DNA methylation (r = -0.837, P < 0.05) and no correlation between H3 lysine 9 acetylation and DNA methylation (r = -0.383, P > 0.05).</p><p><b>CONCLUSIONS</b>Laryngeal tumor suppressor gene RASSF1A promoter methylation is a key factor down-regulating the gene expression, and histone modifications also plays an important role in tumor development.</p>
Assuntos
Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ilhas de CpG , Metilação de DNA , Deleção de Genes , Regulação Neoplásica da Expressão Gênica , Inativação Gênica , Histonas , Genética , Metabolismo , Neoplasias Laríngeas , Genética , Metabolismo , Estadiamento de Neoplasias , Regiões Promotoras Genéticas , Proteínas Supressoras de Tumor , GenéticaRESUMO
Objective To observe the electrocardiogram changes of threatened crowds in Keshan disease (KSD) endemic area in Shandong province. Methods In 2008,inhabitants from 21 villages of Zoucheng,Sishui,Tengzhou, Yishui, Pingyi, Wulian, Juxian and Qingzhou regions were selected as subjects undergoing electrocardiogram. No less than 100 people were chosen from each village and the examination rate was not lower than 85%. Results Among the 3378 inhabitants investigated,460 cases showed abnormal electrocardiogram and the total incidence of abnormal electrocardiogram was 13.62% (460/3378). The relatively high incidence was T-wave changes,QRS low voltage and ST-T changes,the detection rate being respectively 2.69% (91/3378), 1.92% (65/3378) and 1.72% (41/3378). The highest incidence of abnormal electrocardiogram (26.76%,55/213),the intermediate(21.50%,43/200) and the lowest(5.50%,12/218) was respectively found in Pingyi,Qingzhou and Sishui. Conclusions The threatened crowds in KSD endemic area in Shandong province are still in a state of high abnormal electrocardiogram detection,and electrocardiogram is of great value in the evaluation of KSD patients.
RESUMO
<p><b>OBJECTIVE</b>To observe the differences in the cytokine levels in the serum and ascites caused by Gram-positive or Gram-negative bacterial infection in patients with multiple organ dysfunction syndrome (MODS).</p><p><b>METHODS</b>The cytokines in the serum and ascites of the patients were examined by enzyme-linked immunosorbent assay in 27 patients with MODS due to Gram-positive (n=13) or Gram-negative (n=14) bacterial infection at day 1.</p><p><b>RESULTS</b>The levels of LPS and TNF-a were higher in the patients with Gram-negative bacterial infection than in patients with Gram-positive infection (P<0.05), but the levels of IL-6, IL-8 and IL-10 remained comparable between the two groups (P>0.05).</p><p><b>CONCLUSION</b>Testing of LPS and TNF-a in the serum and ascites of patients with MODS caused by Gram-positive or -negative bacterial infection may help to identify the pathogens for peritonitis resulting in MODS.</p>