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1.
Phys Rev Lett ; 130(20): 203401, 2023 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-37267577

RESUMO

We determine the phase diagram of strongly correlated fermions in the crossover from Bose-Einstein condensates of molecules (BEC) to Cooper pairs of fermions (BCS) utilizing an artificial neural network. By applying advanced image recognition techniques to the momentum distribution of the fermions, a quantity which has been widely considered as featureless for providing information about the condensed state, we measure the critical temperature and show that it exhibits a maximum on the bosonic side of the crossover. Additionally, we backanalyze the trained neural network and demonstrate that it interprets physically relevant quantities.

2.
Artigo em Inglês | MEDLINE | ID: mdl-36686289

RESUMO

The composite material based on N-, S-, and Fe-doped TiO2 (NSFe-TiO2) synthesized by wet impregnation was used as a photocatalyst to rapidly degrade sulfadiazine. The photocatalytic degradation behavior and mechanism of sulfadiazine on NSFe-TiO2 were investigated for revealing the role of degradation under ultraviolet light. The results showed that compared with TiO2, NSFe-TiO2 markedly improved the efficiency in photocatalytic degradation of sulfadiazine: more than 90% of sulfadiazine could be removed within 120 min by NSFe-TiO2 dosage of 20 mg L-1. The process conformed to first-order reaction kinetics model. The parameters such as loaded amount of NSFe-TiO2, solution pH value, humic acid concentration and recycle numbers on removal efficiency were also studied. Compared to neutral and alkaline conditions, acidic condition was not conducive to the photocatalysis. HA, Ca2+, Cu2+ and Zn2+ in the actual water body had mild inhibition on sulfadiazine degradation in UV/NSFe-TiO2 system. Fragments screened by high-resolution mass spectrometry were conducted to explore the oxidation mechanism and pathways of sulfadiazine degradation. On the whole, UV/NSFe-TiO2 photocatalysis has a good effect on sulfadiazine removal. Supplementary Information: The online version contains supplementary material available at 10.1007/s13762-023-04771-6.

3.
Zhonghua Yan Ke Za Zhi ; 58(1): 63-68, 2022 Jan 11.
Artigo em Zh | MEDLINE | ID: mdl-34979797

RESUMO

Glaucoma is the leading irreversible blinding eye disease worldwide, and China has the largest amount of primary angle-closure glaucoma (PACG). To reduce blindness, the therapeutic evolution can play a role. With the technical development of minimally invasive glaucoma surgery (MIGS), the treatment of angle-closure glaucoma has been in a transformation. This article reviews the literatures related to the advances of MIGS in the combined treatment of PACG. The research findings show that MIGS may become one of the preferred surgical treatments for PACG in the future clinical management of glaucoma.


Assuntos
Glaucoma de Ângulo Fechado , Glaucoma , China , Terapia Combinada , Glaucoma/cirurgia , Glaucoma de Ângulo Fechado/cirurgia , Humanos , Pressão Intraocular , Procedimentos Cirúrgicos Minimamente Invasivos
4.
Insect Mol Biol ; 30(6): 552-565, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34296485

RESUMO

Bombyx mori cypovirus (BmCPV) is an important pathogen of silkworm (B. mori), the economically beneficial insect. The mechanism of its interaction with host immune defence system in the process of infection is still not yet completely clear. Researches have demonstrated that virus-encoded microRNAs (miRNA) play a crucial role in regulating host-pathogen interaction, but few reports are available so far on miRNAs encoded by insect viruses, especially the RNA viruses. In this study, a putative miRNA encoded by the 10th segment of BmCPV genomic RNA, BmCPV-miR-10, was identified and functionally analysed. The expression of the putative BmCPV-miR-10 could be detected via stem-loop RT-PCR (reverse transcription-Polymerase Chain Reaction) in the midgut of silkworm larvae infected with BmCPV. BmCSDE1 (B. mori cold shock domain E1 protein) gene was predicted to be a candidate target gene for BmCPV-miR-10 with the miRNA binding site located in 3' untranslated region of its mRNA. The regulation effect of the putative BmCPV-miR-10 on BmCSDE1 was verified in HEK293 cells by lentiviral expression system, in BmN cells by transfecting BmCPV-miR-10 mimics. The qRT-PCR (quantitative real-time PCR) results showed that the putative BmCPV-miR-10 could suppress the expression of BmCSDE1. By injection of BmCPV-miR-10 mimics into the silkworm larvae infected with BmCPV, it was further proved that the putative BmCPV-miR-10 could suppress the expression of BmCSDE1 in vivo, then inhibit the expression of BmApaf-1 (B. mori apoptotic protease activating factor 1), while enhance the replication of BmCPV genomic RNAs to a certain extent. These results implied that the putative BmCPV-miR-10 could down-regulate the expression of BmCSDE1, then suppress the expression of BmApaf-1, thereby created a favourable intracellular environment for virus replication and proliferation.


Assuntos
Bombyx , MicroRNAs , Reoviridae , Replicação Viral , Animais , Bombyx/genética , Bombyx/virologia , Células HEK293 , Interações Hospedeiro-Patógeno , Humanos , Larva/genética , Larva/virologia , MicroRNAs/genética , RNA Viral/genética , Reoviridae/genética , Reoviridae/fisiologia
5.
Zhonghua Yan Ke Za Zhi ; 56(1): 25-31, 2020 Jan 11.
Artigo em Zh | MEDLINE | ID: mdl-31937060

RESUMO

Objective: To explore the effect of listening to different types of music on intraocular pressure (IOP) and the underlying mechanism. Methods: Cross-sectional study. Participants were students from Sun Yat-sen University from October 2017 to May 2018. The study consisted of two parts. In part 1, three types of music, including relaxing, positive and negative music, were used to find out which kind of music could reduce IOP. IOP was measured before and after listening to music. A self-report questionnaire was used to evaluate emotional responses to each type of music. In part 2, the diurnal curve of IOP at 6 time points of 7:30, 9:30, 11:30, 13:30, 15:30 and 17:30 was measured to determine when the individual's IOP peaked. On the second day, the subject listened to the music that could reduce IOP for 15 minutes at his/her IOP peak time. IOP, blood pressure (BP) and heart rate (HR) were measured, and morphology of the chamber angle was captured by swept-source optical coherence tomography before and after listening to music. Image J software was used to measure the diameter and cross-sectional area of Schlemm's canal (SC). Paired t-test was used to compare BP, HR and SC measurements prior to and post-music intervention. Results: In part 1, fifteen subjects, including 7 males and 8 females, were enrolled, with an average age of (23±1) years. Relaxation music could significantly lower IOP [(11.62±2.51) vs. (12.65±2.49) mmHg (1 mmHg=0.133 kPa) , t=-2.39, P=0.032]. Positive music had no effect on IOP [(12.45±2.77) vs. (12.65±2.46) mmHg, P=0.566] and negative music increased IOP [(12.13±1.60) vs. (10.86±2.78) mmHg, t=2.45, P=0.029]. Relaxation music could also arouse relaxation emotions in 14 out of 15 subjects. In part 2, 55 subjects, including 20 males and 35 females, were enrolled, with an average age of (26±10) years. The diurnal curve of IOP at 6 time points of every participant was measured. At each individual's peak time point, listening to relaxation music could decrease IOP [(12.66±4.32) vs. (13.99±4.47) mmHg, t=-5.72, P<0.01]. HR before and after listening to relaxation music was (79.57±10.43) and (75.57±9.62) beats/min, respectively (t=-3.68, P=0.001). Systolic BP was (118.11±13.92) and (110.82±12.67) mmHg, respectively (t=-5.10, P<0.01). Diastolic BP significantly declined from (70.07±9.96) to (66.14±8.48) mmHg (t=-3.65, P=0.001). Average SC area significantly increased after listening to relaxation music [(255.96±93.36) vs. (230.07±92.20) pixels, t=2.88, P=0.006]. Average SC diameter was (8.62±1.89) and (9.41±2.37) pixels, respectively before and after listening to relaxation music (t=3.39, P=0.001). Conclusion: Relaxation music reduces IOP in healthy subjects probably by dilating the SC.(Chin J Ophthalmol, 2020, 56: 25-31).


Assuntos
Glaucoma/fisiopatologia , Pressão Intraocular/fisiologia , Música , Adulto , Câmara Anterior , Estudos Transversais , Feminino , Humanos , Masculino , Esclera , Tonometria Ocular , Adulto Jovem
6.
Mol Psychiatry ; 21(11): 1537-1544, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-26809842

RESUMO

Dyslipidemia is one of the most common adverse effects in schizophrenia patients treated with antipsychotics. However, there are no established effective treatments. In this study, data were pooled from two randomized, placebo-controlled trials, which were originally designed to examine the efficacy of metformin in treating antipsychotic-induced weight gain and other metabolic abnormalities. In total, 201 schizophrenia patients with dyslipidemia after being treated with an antipsychotic were assigned to take 1000 mg day-1 metformin (n=103) or placebo (n=98) for 24 weeks, with evaluation at baseline, week 12 and week 24. The primary outcome was the low-density lipoprotein cholesterol (LDL-C) levels. After metformin treatment, the mean difference in the LDL-C value between metformin treatment and placebo was from 0.16 mmol l-1 at baseline to -0.86 mmol l-1 at the end of week 24, decreased by 1.02 mmol l-1 (P<0.0001); and 25.3% of patients in the metformin group had LDL-C ≥3.37 mmol l-1, which is significantly <64.8% in the placebo group (P<0.001) at week 24. Compared with the placebo, metformin treatment also have a significant effect on reducing weight, body mass index, insulin, insulin resistance index, total cholesterol and triglyceride, and increasing high-density lipoprotein cholesterol. The treatment effects on weight and insulin resistance appeared at week 12 and further improved at week 24, but the effects on improving dyslipidemia only significantly occurred at the end of week 24. We found that metformin treatment was effective in improving antipsychotic-induced dyslipidemia and insulin resistance, and the effects improving antipsychotic-induced insulin resistance appeared earlier than the reducing dyslipidemia.


Assuntos
Dislipidemias/tratamento farmacológico , Metformina/farmacologia , Metformina/uso terapêutico , Adulto , Antipsicóticos/uso terapêutico , Glicemia , Peso Corporal/efeitos dos fármacos , Método Duplo-Cego , Feminino , Humanos , Hipoglicemiantes/uso terapêutico , Insulina , Resistência à Insulina , Lipoproteínas LDL/análise , Lipoproteínas LDL/sangue , Masculino , Obesidade/tratamento farmacológico , Esquizofrenia/complicações , Esquizofrenia/tratamento farmacológico , Aumento de Peso/efeitos dos fármacos
7.
J Biol Regul Homeost Agents ; 31(2): 431-438, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28685549

RESUMO

This study analyzed the temporal-spatial distribution characteristics, epidemiological characteristics and gene sequences of hemorrhagic fever with renal syndrome (HFRS) in Guangxi, with the intention of providing a theoretical and technical support for the prevention of HFRS. A map of the incidence of HFRS of different cities in Guangxi was drawn up using the Geographic Information System (GIS) to investigate the epidemiological characteristics and infection source of HFRS between 2013 and 2016. Guangxi has a low incidence of HFRS, and autumn and winter are the main high-incidence seasons. Cases of HFRS were reported in all regions in Guangxi except Laibin city between 2013 and 2016. The distribution of cases in the four years suggested that Guilin, Nanning, Hechi and Wuzhou were the main infected regions, especially the local areas in the north of Guilin. The nucleotide and amino acid of S fragment and M fragment of Hantaviruses (HV) detected were highly homologous, and no obvious variation was found. Through analyzing the space-time characteristics, epidemiological characteristics and gene sequence of HFRS in Guangxi, it was found that areas rich in water, grass and moisture, such as paddy fields, are the main active areas for the host of HFRS.


Assuntos
Genes Virais , Sistemas de Informação Geográfica , Vírus Hantaan , Febre Hemorrágica com Síndrome Renal , Reforma Urbana , Animais , China/epidemiologia , Feminino , Vírus Hantaan/genética , Vírus Hantaan/isolamento & purificação , Vírus Hantaan/patogenicidade , Febre Hemorrágica com Síndrome Renal/epidemiologia , Febre Hemorrágica com Síndrome Renal/genética , Humanos , Masculino , Camundongos , Ratos
8.
J Viral Hepat ; 23(10): 798-804, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27126208

RESUMO

DNA vaccine targeting delivery to DC represents one effective strategy to improve the immunogenicity of the vaccine. In a previous study, we developed a novel DC-targeting recombinant protein that can deliver plasmid DNA to DCs by an electrostatic coupling effect and can thus improve the uptake efficiency of DCs, improving the expression of plasmid DNA in DCs. In this study, we coupled the protein with the HBV DNA vaccine pSVK-HBVA and investigated whether the immunogenicity and antiviral ability of the vaccine can be improved in HBV transgenic mice. The results show that a stronger specific immune response can be induced in mice after immunization with the coupling vaccine. The HBV DNA copy number and circulating antigen HBsAg in the serum of HBV transgenic mice were significantly decreased. Therefore, this study has demonstrated that the DC-targeting protein has the ability to improve the immunogenicity and the antiviral activity of the HBV DNA vaccine pSVK-HBVA. These findings indicate that this DC-targeting protein can be a potential method for the delivery of DNA vaccines directly to DCs.


Assuntos
Células Dendríticas/imunologia , Vacinas contra Hepatite B/administração & dosagem , Vacinas contra Hepatite B/imunologia , Vírus da Hepatite B/imunologia , Hepatite B/prevenção & controle , Vacinas de DNA/administração & dosagem , Vacinas de DNA/imunologia , Animais , Feminino , Vírus da Hepatite B/genética , Camundongos Endogâmicos BALB C , Camundongos Transgênicos
9.
Phys Rev Lett ; 116(1): 013001, 2016 Jan 08.
Artigo em Inglês | MEDLINE | ID: mdl-26799015

RESUMO

Based upon an over-one-month frequency comparison of two (40)Ca(+) optical clocks, the frequency difference between the two clocks is measured to be 3.2×10(-17) with a measurement uncertainty of 5.5×10(-17), considering both the statistic (1.9×10(-17)) and the systematic (5.1×10(-17)) uncertainties. This is the first performance of a (40)Ca(+) clock better than that of Cs fountains. A fractional stability of 7×10(-17) in 20,000 s of averaging time is achieved. The evaluation of the two clocks shows that the shift caused by the micromotion in one of the two clocks limits the uncertainty of the comparison. By carefully compensating the micromotion, the absolute frequency of the clock transition is measured to be 411 042 129 776 401.7(1.1) Hz.

10.
Vox Sang ; 110(1): 27-35, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26198276

RESUMO

BACKGROUND AND OBJECTIVES: Six patients died and one patient survived following infusion of a specific lot of intravenous immunoglobulin (IVIG) within half an hour in May 2008. This study elucidated the underlying pathogenesis. MATERIALS AND METHODS: A variety of protein fractionation and identification approaches were employed to determine the abnormal components in IVIG products obtained from the hospital where the patients were treated. Animal studies using mice and monkeys were conducted to elucidate the pathophysiological mechanisms. In animal experiments, the effect and distribution of immunoglobulin was investigated using HE staining and immunohistochemistry (IHC) separately, while platelets and fibrinogen depletion were utilized to determine a possible link between thromboembolism formation in animals and the lethal effect of the IVIG. The size and distribution of the protein aggregates were determined with Coulter Counter Multisizer-3 after the dilution of the IVIG with plasma, and the lethal effect of the protein aggregates was simulated with artificial microparticles. RESULTS: The IVIG retrieved from the hospital was found to have striking similarities to the heat-treated IVIG in terms of protein aggregation profiles and lethal effects. Post-mortem examination indicated that immunoglobulin aggregates were mainly found in the lung of the animals, while depletion of platelets and fibrinogen from the IVIG preparations failed to prevent the death of the animals. Similar amount of artificial microparticles caused animal death in similar fashion. CONCLUSIONS: Our findings indicate that the retrieved IVIG exerted its lethal effects by blocking the pulmonary circulation without markedly altering the coagulation cascade or immunological events.


Assuntos
Imunoglobulinas Intravenosas/efeitos adversos , Embolia Pulmonar/etiologia , Tromboembolia/etiologia , Animais , Coagulação Sanguínea , Haplorrinos , Humanos , Imunoglobulinas Intravenosas/uso terapêutico , Camundongos , Camundongos Endogâmicos BALB C , Coelhos
11.
Epidemiol Infect ; 144(6): 1165-74, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26467944

RESUMO

This study aimed to comprehensively evaluate factors that influence the likelihood of syphilis infection from risk-taking behaviours and medical conditions. A retrospective case-control study was conducted by enrolling 664 syphilis inpatients (excluding 11 congenital syphilis patients) and 800 sex- and age-matched controls. Medical histories, clinical data and patient interview data were collected and subjected to logistic regression analyses. The prevalence of syphilis in the study population was 3·9% (675/17,304). By univariate analysis, syphilis infection was associated with migration between cities, marital status, smoking, reproductive history, hypertension, elevated blood urea nitrogen (BUN) and infection with hepatitis B virus (HBV) (P < 0·05). A high rate of syphilis-HBV co-infection was observed in HIV-negative patients and further research revealed an association between syphilis and specific HBV serological reactivity. Syphilis was also associated with the frequency, duration and status of tobacco use. Multivariate analysis indicated that syphilis infection was independently associated with migration between cities [adjusted odds ratio (aOR) 1·368, 95% confidence interval (CI) 1·048-1·785], current smoking (aOR 1·607, 95% CI 1·177-2·195), elevated BUN (aOR 1·782, 95% CI 1·188-2·673) and some serological patterns of HBV infection. To prevent the spread of infectious diseases, inpatients and blood donors should be tested for HIV, syphilis, HBV and HCV simultaneously.


Assuntos
Sífilis/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , China/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Retrospectivos , Fatores de Risco , Assunção de Riscos , Adulto Jovem
13.
Zhonghua Yi Xue Za Zhi ; 96(19): 1495-9, 2016 May 24.
Artigo em Zh | MEDLINE | ID: mdl-27266494

RESUMO

OBJECTIVE: To evaluate the clinical efficacy of anterior debridement combined with posterior atlantoaxial fusion for atlantoaxial Tuberculosis. METHODS: From February 2005 to February 2013, 7 patients, 3 males and 4 females, with atlantoaxial Tuberculosis underwent anterior debridement combined with posterior atlantoaxial fusion in Department of Orthopedics Zhengzhou University People's Hospital were selected.In the preoperative and final follow-up, Japanese Orthopaedic Association score (JOA), neck disability index (NDI) and Frankel Classification were used to evaluate neurological function and calculate improvement rate.At final follow-up, clinical efficacy was evaluated by Odom's grade.Situation of internal fixation, fusion of upper cervical were assessed by X-ray, CT scan and MRI scan. RESULTS: Bony fusion were achieved in 7 cases after operation in 12 months. Tuberculosis were reached clinical cure between 17 and 21 months. At follow The JOA score increased from (11.1±0.7) preoperatively to (15.3±0.5) in final follow-up(P<0.05), and the NDI decreased from (34.0±4.6) preoperatively to (10.1±1.3) in final follow-up (P<0.05). At last follow-up, according to Odom's standard, excellent were obtained in 5 cases, good 1 cases and ordinary 1 case. Frankel Classification of all cases improved from D class to E. CONCLUSIONS: The treatment of anterior retropharyngeal debridement combine with atlantoaxial fusion, and local anti-tuberculosis drug using intraoperative, not only could obtain reliable clinical efficacy, completly removal of lesions, but also obtain strong stability, which plays an important role in the treatment of atlantoaxial Tuberculosis.


Assuntos
Articulação Atlantoaxial/anormalidades , Anormalidades Congênitas , Desbridamento , Fusão Vertebral/métodos , Vértebras Torácicas/cirurgia , Tuberculose da Coluna Vertebral/cirurgia , Artrodese , Feminino , Fixação Interna de Fraturas , Humanos , Fixadores Internos , Imageamento por Ressonância Magnética , Masculino , Período Pós-Operatório , Procedimentos de Cirurgia Plástica , Vértebras Torácicas/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Tuberculose da Coluna Vertebral/diagnóstico por imagem
14.
Zhonghua Yu Fang Yi Xue Za Zhi ; 50(10): 853-857, 2016 Oct 06.
Artigo em Zh | MEDLINE | ID: mdl-27686761

RESUMO

Objective: To introduce the development strategy of " Internet Plus" AIDS prevention services and its implementation results from 2010 to 2015 in Guangzhou, China. Methods: A gay men's health column was created for an active website aimed at men who have sex with men(MSM), in collaboration with local community organizations and the Guangzhou CDC. We designed intervention tools(including scenario-based applications and HIV risk self-assessment systems)and an online HIV testing service platform, integrated with applied psychology and behavioral theory as well as the " Internet Plus" concept, to intervene in HIV infection risk factors among MSM. Data of clients who accessed the " Internet Plus" AIDS services from 2010 to 2015 were used to evaluate service operation. Six-year consecutive surveys, conducted between April and July of each service year, were collected using a national AIDS sentinel surveillance questionnaire. For each year of surveillance, information on HIV prevalence, HIV interventions received during the past year, unprotected anal intercourse in the past 6 months, and HIV testing in the past year were compared using the chi-squared(χ2)test, to roughly reflect the effect of"Internet Plus" AIDS prevention services. Results: As of 31 December 2015, a total of 34 395 MSM had received " Internet Plus" services and HIV testing. The number of MSM tested increased from 2 338 in 2010 to 8 054 in 2015. From 2010 to 2015, newly identified HIV cases in each year were 59, 166, 312, 283, 291, and 270, which accounted for 25.0%, 32.8%, 38.8%, 35.1%, 30.5%, and 23.2% of MSM HIV cases of Guangzhou, respectively. Sentinel surveillance data showed that during the study period, 3 047 MSM were investigated, with 405, 400, 401, 633, 608, and 600 each year, respectively. The proportion of participants who had received any HIV intervention during the past year was 74.3%(301), 70.8%(283), 83.3%(334), 85.0%(538), 69.1%(420), and 83.8%(503)each year, respectively(trend χ2=6.53, P=0.011). HIV testing done during the past year accounted for 44.0%(178), 44.3%(177), 49.4%(198), 53.4%(338), 56.1%(341), and 60.2%(361)each year, respectively(trend χ2=40.83, P<0.001). Unprotected anal intercourse in the past 6 months accounted for 59.3%(240), 62.0%(248), 56.6%(227), 57.0%(361), 48.4%(294), and 43.7%(262)each year, respectively(trend χ2=42.21, P<0.001). Conclusion: The"Internet Plus"AIDS prevention services in this study represent a manner to enhance traditional HIV prevention strategies. We found these services to be effective in implementation of the national AIDS control and prevention strategy, especially for the expansion of intervention, testing, and case identification among high-risk populations.


Assuntos
Síndrome da Imunodeficiência Adquirida/prevenção & controle , Infecções por HIV/prevenção & controle , Homossexualidade Masculina/estatística & dados numéricos , Internet , Programas de Rastreamento , Adulto , China/epidemiologia , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Homossexualidade Masculina/psicologia , Humanos , Masculino , Programas de Rastreamento/estatística & dados numéricos , Prevalência , Desenvolvimento de Programas , Avaliação de Programas e Projetos de Saúde , Assunção de Riscos , Vigilância de Evento Sentinela , Comportamento Sexual , Infecções Sexualmente Transmissíveis/epidemiologia , Infecções Sexualmente Transmissíveis/prevenção & controle
15.
Zhonghua Wai Ke Za Zhi ; 54(6): 451-455, 2016 06 01.
Artigo em Zh | MEDLINE | ID: mdl-27938580

RESUMO

Objective: To explore clinical results of posterior debridement combined with atlantoaxial fusion for upper cervical Tuberculosis. Methods: From March 2007 to April 2012, 8 patients with upper cervical Tuberculosis underwent posterior debridement combined with atlantoaxial fusion in our hospital were selected for retrospective analysis. 3 cases were males and 5 females, aged 29-65 (43.5±13.2) years. According to the pedicle destruction, using different screws (pedicle screw or laminar screw) fixation.In the preoperative and final follow-up, Japanese Orthopaedic Association score (JOA) and neck disability index (NDI) were used to evaluate neurological function and calculate improvement rate JOA score. At final follow-up, clinical efficacy was evaluated by Odom's grade. situation of internal fixation, fusion of upper cervical were assessed by imaging examination. During follow-up, complications were documented and analyzed. Results: Postoperatively 12 months, all bony fusion were achieved. Tuberculosis were reached clinical cure in 12-18 months. The JOA score increased from 10.5±2.0 preoperatively to 15.6 ±1.1 in final follow-up(P<0.05), and the NDI decreased from 29.9 ± 6.2 preoperatively to 8.6±1.6 (P<0.05). At last follow-up, according to Odom's standard, excellent were obtained in 6 cases (75.0%), good 1 cases (12.5%) and ordinary 1 case (12.5%). No severe complications was documented during follow-up. Conclusions: The treatment of posterior debridement combine with atlantoaxial fusion, and structure grafting and local anti-Tuberculosis drug using intraoperative, not only could obtain reliable clinical efficacy, completely removal of lesions, but also obtain strong stability, which plays an important role in the treatment of cervical tuberculosis.


Assuntos
Articulação Atlantoaxial/anormalidades , Desbridamento , Fusão Vertebral/métodos , Vértebras Torácicas/cirurgia , Tuberculose da Coluna Vertebral/cirurgia , Adulto , Idoso , Anormalidades Congênitas , Feminino , Fixação Interna de Fraturas , Humanos , Masculino , Pessoa de Meia-Idade , Parafusos Pediculares , Período Pós-Operatório , Procedimentos de Cirurgia Plástica , Estudos Retrospectivos , Vértebras Torácicas/diagnóstico por imagem , Resultado do Tratamento , Tuberculose da Coluna Vertebral/diagnóstico por imagem
16.
Clin Genet ; 87(3): 233-43, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24611677

RESUMO

Laminin-α2 deficient congenital muscular dystrophy (CMD) is an autosomal recessive disorder characterized by severe muscular dystrophy, which is typically associated with abnormal white matter. In this study, we assessed 43 CMD patients with typical white matter abnormality and laminin-α2 deficiency (complete or partial) diagnosed by immunohistochemistry to determine the clinical and molecular genetic characteristics of laminin-α2 deficient CMD. LAMA2 gene mutation analysis was performed by direct sequencing of genomic DNAs. Exonic deletion or duplication was identified by multiplex ligation-dependent probe amplification (MLPA) and verified by high-density oligonucleotide-based CGH microarrays. Gene mutation analysis revealed 86 LAMA2 mutations (100%); 15 known and 37 novel. Among these mutations, 73.9% were nonsense, splice-site or frameshift and 18.8% were deletions of one or more exons. Genetic characterization of affected families will be valuable in prenatal diagnosis of CMD in the Chinese population.


Assuntos
Genótipo , Laminina/genética , Distrofias Musculares/diagnóstico , Distrofias Musculares/genética , Fenótipo , Adolescente , Sequência de Aminoácidos , Substituição de Aminoácidos , Povo Asiático/genética , Criança , Pré-Escolar , China , Hibridização Genômica Comparativa , Consanguinidade , Análise Mutacional de DNA , Feminino , Ordem dos Genes , Humanos , Lactente , Laminina/deficiência , Masculino , Mutação , Linhagem
17.
Genet Mol Res ; 14(4): 13342-8, 2015 Oct 27.
Artigo em Inglês | MEDLINE | ID: mdl-26535648

RESUMO

We evaluated the cytotoxicity of 1-dodecyl-3-methylimidazo-lium bromide ([C12mim][Br]) on HepG2 cells and its influence on plasma membrane permeability. The results showed that [C12mim][Br] inhibited HepG2 cell growth and decreased cell viability in a concentration-depen-dent manner. The results also revealed that [C12mim][Br] exposure induced apoptosis in [C12mim][Br]-treated HepG2 cells. In addition, the results showed that [C12mim][Br] increased membrane permeability in HepG2 cells. These results suggest that plasma membrane permeability may be responsible for apoptosis induced by [C12mim][Br] in HepG2 cells.


Assuntos
Brometos/toxicidade , Imidazóis/toxicidade , Brometos/química , Brometos/farmacocinética , Permeabilidade da Membrana Celular/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Relação Dose-Resposta a Droga , Células Hep G2 , Humanos , Imidazóis/química , Imidazóis/farmacocinética
18.
Genet Mol Res ; 14(4): 14144-50, 2015 Oct 30.
Artigo em Inglês | MEDLINE | ID: mdl-26535731

RESUMO

Gray horses are born colored, and they then gradually lose their hair pigmentation. Tremendous progress has been made in identifying the genes responsible for graying with age in horses in recent years. Results show that gray coat color in horses is caused by a 4.6-kb duplication in intron 6 of the syntaxin 17 gene (STX17), which constitutes a cis-acting-regulatory mutation. However, little is known about the gray phenotype in native Chinese horses. This study was conducted to explore the frequency distribution of the gray mutation in native Chinese horse breeds. A total of 489 samples from 14 native Chinese horse breeds were genotyped for the STX17 duplication using a simplified conventional PCR-based method. The results show that the gray mutation was present in 12 native Chinese horse breeds, except the Balikun and Guanzhong breeds. The Chakouyi and Hequ breeds had the highest frequency of the gray mutation (P(G) = 0.367 and P(G) = 0.274, respectively). There was no significant geographical difference in the distribution of gray coat color across native Chinese horse breeds. Our results suggest that gray is a common coat color in Chinese horses.


Assuntos
Cor de Cabelo/genética , Cavalos/genética , Animais , Cruzamento , China , Feminino , Duplicação Gênica , Estudos de Associação Genética , Íntrons , Masculino , Pigmentação/genética , Reação em Cadeia da Polimerase , Proteínas Qa-SNARE/genética
19.
Br J Cancer ; 110(9): 2310-20, 2014 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-24594999

RESUMO

BACKGROUND: TAp63 is a tumour-suppressor protein that is often underexpressed in various types of cancer. It has been shown to activate gene transcription depending on the transcription domain and to be closely related with metastasis. In this study, we demonstrate that TAp63 suppresses metastasis in colon cancer cells through microRNA-133b. METHODS: We evaluated the correlation of TAp63 and miR-133b with HT-29 and SW-620 cells and investigated the roles of TAp63 in the expression of RhoA, E-cadherin and vimentin. We further investigated the roles of TAp63-mediated invasion and migration of colon cancer cells. RESULTS: TAp63 expression is downregulated in colon cancer, and microRNA-133b is a transcriptional target of TAp63. Furthermore, microRNA-133b is essential for the inhibitory effects of TAp63 on RhoA, E-cadherin and vimentin. Moreover, TAp63 inhibits cell migration and invasion through microRNA-133b. Correspondingly, the inhibitory effect of TAp63 on RhoA, E-cadherin, vimentin, migration and invasion can be blocked by the microRNA-133b inhibitor. CONCLUSIONS: TAp63 and microRNA-133b were able to suppress the metastasis of colon cancer. Both TAp63 and microRNA-133b may be potential biomarkers for diagnosis in colon cancer metastasis and may provide unique therapeutic targets for this common malignancy.


Assuntos
Neoplasias do Colo/genética , Neoplasias do Colo/patologia , Regulação Neoplásica da Expressão Gênica , MicroRNAs/genética , Fatores de Transcrição/metabolismo , Proteínas Supressoras de Tumor/metabolismo , Biomarcadores Tumorais/genética , Biomarcadores Tumorais/metabolismo , Regulação para Baixo , Células HT29 , Humanos , Metástase Neoplásica , Fatores de Transcrição/genética , Proteínas Supressoras de Tumor/genética
20.
Genet Mol Res ; 13(1): 1203-11, 2014 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-24634177

RESUMO

Several single-nucleotide polymorphisms (SNPs) in DNA repair gene have been shown to affect DNA repair and to modify susceptibility to cancer. In this study, to investigate the role of these SNPs in glioma, we examined the potential association of 14 SNPs in DNA repair genes with the glioma risk in a Chinese population. We included 326 glioma cases and 376 cancer-free controls. Genotyping of the 14 SNPs was performed on 384-well plates on the Sequenom MassARRAY platform. Of the 14 SNPs, rs1799782 and rs1799793 did not display the Hardy-Weinberg equilibrium in the control group. Moreover, the genotype distribution differed significantly between the two groups for the SNPs rs25487, rs3218536, and rs1799793. The rs25487 G/G genotype strongly and significantly increased the risk of glioma when compared with the rs25487 A/A genotype, indicated by an odds ratio (OR) = 2.23 [95% confidence interval (95%CI) = 1.36-3.87]. The rs25489 A/G genotype was also significantly associated with increased risk of glioma when compared with the A/A genotype (OR = 1.52; 95%CI = 1.03-2.35). In addition, rs1799782 increased the risk of glioma (OR = 1.89; 95%CI = 1.27-3.04), and a similar association was found for rs1800067 (OR = 1.89; 95%CI = 1.21-3.07). In conclusion, the results of our study suggest that the rs25487, rs25489, rs1799793, and rs13181 SNPs are associated with an increased risk of glioma. These findings may be useful for identifying the genetic factors involved in the development of glioma to help devise more efficient strategies to prevent this disease.


Assuntos
Enzimas Reparadoras do DNA/genética , Glioma/genética , Meningioma/genética , Polimorfismo de Nucleotídeo Único , Adulto , Povo Asiático/genética , Feminino , Frequência do Gene , Estudos de Associação Genética , Variação Genética , Genótipo , Glioma/patologia , Humanos , Masculino , Meningioma/patologia , Pessoa de Meia-Idade
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