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1.
Phys Rev Lett ; 130(19): 192501, 2023 May 12.
Artigo em Inglês | MEDLINE | ID: mdl-37243656

RESUMO

Using a novel method of isochronous mass spectrometry, the masses of ^{62}Ge, ^{64}As, ^{66}Se, and ^{70}Kr are measured for the first time, and the masses of ^{58}Zn, ^{61}Ga, ^{63}Ge, ^{65}As, ^{67}Se, ^{71}Kr, and ^{75}Sr are redetermined with improved accuracy. The new masses allow us to derive residual proton-neutron interactions (δV_{pn}) in the N=Z nuclei, which are found to decrease (increase) with increasing mass A for even-even (odd-odd) nuclei beyond Z=28. This bifurcation of δV_{pn} cannot be reproduced by the available mass models, nor is it consistent with expectations of a pseudo-SU(4) symmetry restoration in the fp shell. We performed ab initio calculations with a chiral three-nucleon force (3NF) included, which indicate the enhancement of the T=1 pn pairing over the T=0 pn pairing in this mass region, leading to the opposite evolving trends of δV_{pn} in even-even and odd-odd nuclei.

2.
Rhinology ; 2023 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-36715464

RESUMO

BACKGROUND: Post radiation nasopharyngeal necrosis (PRNN) invading the internal carotid artery (ICA) contributes to the death of 69.2-72.7% of PRNN patients. ICA occlusion is an effective treatment to avoid fatal bleeding, while some patients are intolerant. We present a novel method that allows for these patients without interrupting blood flow through the ICA. METHODOLOGY: This study enrolled patients with PRNN-invaded ICA who were not suitable for ICA occlusion from April 2020 to November 2022. ICA stent pretreatment was performed in the 36 patients and followed the endoscopic nasopharyngectomy (ENPG) or conservative treatment for PRNN. We report the survival outcome and incidence of complications after stent implantation and compare the survival outcomes of ENPG and conservative treatment for PRNN followed by stent implantation. RESULTS: ICA stent pretreatment was performed in the 36 enrolled patients, among which 14 underwent ENPG, and 22 received conservative treatment. 27.8% patients died after a median follow-up of 15 months. The Kaplan-Meier estimates of overall survival were higher in the ENPG group than in the conservative treatment group. Karnofsky performance status (KPS) was significantly higher in the ENPG group than in the non-ENPG group. CONCLUSIONS: The innovative application of ICA stents is a promising treatment to improve outcomes in patients with PRNN invading the ICA who are unsuitable for ICA embolization, especially when followed by endoscopic surgery. However, methods to avoid postoperative cerebral ischemia and nasopharyngeal hemorrhage still require further study.

3.
Rhinology ; 2023 Dec 11.
Artigo em Inglês | MEDLINE | ID: mdl-38078376

RESUMO

BACKGROUND: The surgical treatment of recurrent nasopharyngeal carcinoma (rNPC) involving the internal carotid artery (ICA) is challenging, as the massive bleeding caused by intraoperative rupture of the ICA is life-threatening. We reported that ICA embolization is an effective pretreatment to avoid fatal bleeding, but some patients cannot tolerate the procedure. We used endovascular vascular protection (ICA stents), vascular sacrifice (bypass grafting) and extravascular vascular protection (transcervical external stent placement) of the ICA to provide alternative options for these patients. METHODOLOGYy: This study enrolled patients with rNPC adjacent to or invading the ICA who were unsuitable for ICA embolization from January 2015 to June 2020. ICA pretreatment combined with endoscopic nasopharyngectomy (ENPG) was performed for the 30 patients. We report the survival outcome and incidence of complications after ICA pretreatment. RESULTS: ICA pretreatment was performed for the 30 enrolled patients, among whom 8 underwent endoscopic-assisted transcervical protection of the parapharyngeal ICA combined with ENPG, 6 underwent bypass grafting, and 16 underwent ICA stent implantation followed by ENPG. After pretreatment, at a median follow-up of 43 months (range, 2-80 months), the 3-year locoregional overall survival (OS), progression-free survival (PFS), locoregional recurrence-free survival (LRRFS), and distant metastasis-free survival (DMFS) were 62.9%, 61.3%, 70.2%, and 71.4%, respectively. CONCLUSIONS: ICA pretreatment combined with salvage ENPG enables the feasible and effective resection of rNPC lesions involving the ICA in patients who cannot tolerate ICA embolization. Therefore, this treatment may be an effective method for improving outcomes. Multidisciplinary therapy is needed to reduce operation-related complications.

4.
Phys Rev Lett ; 128(15): 152701, 2022 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-35499908

RESUMO

The Rare-RI Ring (R3) is a recently commissioned cyclotronlike storage ring mass spectrometer dedicated to mass measurements of exotic nuclei far from stability at Radioactive Isotope Beam Factory (RIBF) in RIKEN. The first application of mass measurement using the R3 mass spectrometer at RIBF is reported. Rare isotopes produced at RIBF-^{127}Sn, ^{126}In, ^{125}Cd, ^{124}Ag, ^{123}Pd-were injected in R3. Masses of ^{126}In, ^{125}Cd, and ^{123}Pd were measured whereby the mass uncertainty of ^{123}Pd was improved. This is the first reported measurement with a new storage ring mass spectrometry technique realized at a heavy-ion cyclotron and employing individual injection of the preidentified rare nuclei. The latter is essential for the future mass measurements of the rarest isotopes produced at RIBF. The impact of the new ^{123}Pd result on the solar r-process abundances in a neutron star merger event is investigated by performing reaction network calculations of 20 trajectories with varying electron fraction Y_{e}. It is found that the neutron capture cross section on ^{123}Pd increases by a factor of 2.2 and ß-delayed neutron emission probability, P_{1 n}, of ^{123}Rh increases by 14%. The neutron capture cross section on ^{122}Pd decreases by a factor of 2.6 leading to pileup of material at A=122, thus reproducing the trend of the solar r-process abundances. The trend of the two-neutron separation energies (S_{2n}) was investigated for the Pd isotopic chain. The new mass measurement with improved uncertainty excludes large changes of the S_{2n} value at N=77. Such large increase of the S_{2n} values before N=82 was proposed as an alternative to the quenching of the N=82 shell gap to reproduce r-process abundances in the mass region of A=112-124.

5.
Zhonghua Yu Fang Yi Xue Za Zhi ; 56(6): 838-842, 2022 Jun 06.
Artigo em Zh | MEDLINE | ID: mdl-35785866

RESUMO

In order to investigate developmental coordination disorder (DCD) of kindergarten children in Zhejiang province, 200 ordinary kindergartens were randomly selected by stratified random sampling in 11 prefecture-level cities of Zhejiang Province, and 38 900 children from 1 000 classes in each grade were then randomly selected into the study from June 2019 to December 2019. The Little DCD Questionnaire and a self-designed questionnaire were used to screen the DCD of those children. There were 36 807 valid questionnaires, and 6.50% (2 391/36 807) of them were positive results. The results showed that boy, age ≤5 years, overweight or obesity, left handedness, comorbidity with motor or developmental disorders and premature infants were risk factors of DCD in children. As for parents and families, maternal gestational age<20 years, maternal overweight or obesity before pregnancy, low-middle level education of parents, direct family and low income of family were also associated with DCD in children. Therefore, it is necessary to conduct early prevention and intervention strategies targeting on identified risk factors among relevant population.


Assuntos
Transtornos das Habilidades Motoras , Sobrepeso , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Transtornos das Habilidades Motoras/epidemiologia , Obesidade , Gravidez , Fatores de Risco , Instituições Acadêmicas , Adulto Jovem
6.
J Appl Microbiol ; 131(2): 913-924, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33263216

RESUMO

AIMS: The aims of this study were to investigate the effects of probiotics and antibiotics on microbial composition, short chain fatty acids (SCFAs) concentration and free fatty acid receptor 2/3 (FFAR2/3) expression in boiler chickens. METHODS AND RESULTS: A total of 150 1-day-old male broilers were randomly allocated into three groups, control (CON) group, probiotics (PB) group and antibiotics (ATB) group. Results indicated that PB improved the average body weight from 1 to 21 days and feed intake from 21 to 42 days (P < 0·05), while ATB improved the feed efficiency from 1 to 42 days (P < 0·05). Based on 16s rRNA sequencing, PB treatment increased the amount of kingdom bacteria, and the relative abundance of the main bacteria including acetate and butyrate producing bacteria of phylum Firmicutes, family Ruminococcaceae and genus Faecalibacterium. ATB treatment also increased the relative abundance of phylum Firmicutes, family Ruminococcaceae and Lachnospiraceae, however, it introduced some pathogenic bacteria, such as bacteria of family Rikenellaceae and Enterobacteriaceae. Gas chromatography and mass spectrometry (GC-MS) assay revealed that PB increased acetate and butyrate concentrations at both 21 and 42 days, and propionate at 42 days in the colorectum. Moreover qRT-PCR analysis showed PB treatment significantly activated the FFAR2/3 mRNA expressions. On the contrast, ATB treatment lowered the colorectal propionate at 21 days, and decreased acetate, propionate and butyrate concentrations at 42 days, accompanied with decreased FFAR2/3 mRNA expressions. CONCLUSIONS: Compared to the CON birds, an enriched SCFAs producing bacteria with higher SCFAs contents and activated FFAR2/3 expressions are prominent features of PB birds. However, antibiotics treatment plays the reverse effect compared to PB treatment. SIGNIFICANCE AND IMPACT OF THE STUDY: This study brings a significant idea that less SCFAs concentration may be another reason why the antibiotics inhibit the immune system development and immunity of the body.


Assuntos
Microbiota , Probióticos , Animais , Antibacterianos/farmacologia , Galinhas , Ácidos Graxos Voláteis , Masculino , RNA Mensageiro/genética , RNA Ribossômico 16S/genética
7.
Zhonghua Yi Xue Za Zhi ; 101(31): 2465-2470, 2021 Aug 17.
Artigo em Zh | MEDLINE | ID: mdl-34399561

RESUMO

Objective: To establish the standard operation procedure (SOP) for detection of oligoclonal band (OCB) in cerebrospinal fluid (CSF) and verify consistency by using this SOP in different laboratories. Methods: The SOP for detection of CSF-OCB fluid was successfully established by an expert feedback approach. Neuroimmunology laboratories in 3 representative Chinese three-tier research hospitals were selected for this study, and commercially available protein electrophoresis automation systems and detection SOP were set up. The quality control product was provided by the College of American Pathologists (CAP) and Sebiacompany were used for interior quality and compared to each other, respectively. Seventeen serum and CSF paired samples were tested and compared using the same SOP. Kappa test or Kendall W test were adopted to evaluate the inter-laboratory consistency among different hospitals. Results: The results of repeated testings in a single hospital suggested that the 2-and 4-fold dilution for CSF-OCB were reported as positive, while 64-and 128-fold dilution were reported as negative. Positive or negative inconsistencies were reported in 8-, 16-, and 32-fold dilution. After increasing the number of repetitions, the results showed that both 16-and 32-fold dilution were reported as negative, and 8-fold dilution exhibited negative results (2 positive results for 40 repetitions, coincidence rate=95%).The results of multi-center inter-laboratory quality assessment showed that the detection consistency rate among 3 hospitals was 100% (Kappa value =1). Conclusions: The SOP to detect CSF-OCB established in this study demonstrates a good repeatability and stability. Therefore,such SOP would be a good reference for diagnostic laboratories to detect CSF-OCB in China.


Assuntos
Esclerose Múltipla , Bandas Oligoclonais , Humanos , Imunoglobulina G , Laboratórios , Soro
8.
Anim Genet ; 51(6): 866-875, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33020910

RESUMO

In this study, we analyzed 93 whole genomes from Chinese spot-billed ducks (CSB), meat-type ducks (MET), and egg and dual purpose-type ducks (EDT) to characterize the genetic material flowing between the CSB and modern ducks. Using a frequency of shared identical-by-descent method, approximately 10.9 Mb introgression segments containing 140 genes were identified showing the signatures of introgression between CSB and EDT. Meanwhile, nearly 10.6 M introgression regions containing 149 genes were identified between CSB and MET. Based on the haplotypes tree of each segment, we found that the introgression between CSB and domesticated ducks was asymmetric with a high level of gene flow from domestic to CSB and a low level of migration in the opposite direction. Moreover, we identified several genes that were introgressions from CSB and showed the signature of positive selection, which may contribute to the breeding of modern ducks. Our results provide new insight into the evolution and breeding history of domestic ducks and may be useful for the future management of wild and domestic duck populations.


Assuntos
Animais Domésticos/genética , Patos/genética , Fluxo Gênico , Introgressão Genética , Animais , Cruzamento , Mapeamento Cromossômico , Evolução Molecular , Haplótipos , Polimorfismo de Nucleotídeo Único
9.
Acta Neurol Scand ; 138(3): 219-226, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29736936

RESUMO

OBJECTIVES: Myasthenia gravis (MG) represents a spectrum of clinical subtypes with differences in disease mechanisms and treatment response. MG with muscle-specific tyrosine kinase (MuSK) antibodies accounts for 1%-10% of all MG patients. We conducted a meta-analysis to evaluate the association between HLA genes and MuSK-MG susceptibility. SUBJECTS AND METHODS: Studies were searched in Pubmed, EMBASE database and other sources between 2001 and 2018. Genotype, allele and haplotype frequencies of HLA loci in MuSK-MG patients and healthy controls were extracted from each included study. RESULTS: The meta-analysis showed that HLA DQB1*05, DRB1*14 and DRB1*16 were strongly associated with an increased risk of MuSK-MG (P < .0001), whereas HLA DQB*03 was less frequent in MuSK patients compared with healthy controls (P < .05). Haplotype analysis showed that these DQB1 and DRB1 alleles were closely linked, forming both risk (DQ5-DR14, DQ5-DR16, P < .0001) and protective (DQ3-DR4, DQ3-DR11, P < .05) haplotypes. CONCLUSION: The distinct genetic patterns of MuSK-MG indicate that variation in HLA class II genes plays an important role in the pathogenesis of MuSK-MG patients.


Assuntos
Predisposição Genética para Doença/genética , Antígenos de Histocompatibilidade Classe II/genética , Miastenia Gravis/genética , Receptores Proteína Tirosina Quinases/imunologia , Receptores Colinérgicos/imunologia , Alelos , Feminino , Frequência do Gene , Genótipo , Haplótipos , Antígenos de Histocompatibilidade Classe II/imunologia , Humanos , Miastenia Gravis/imunologia
10.
Zhonghua Yi Xue Za Zhi ; 98(15): 1152-1157, 2018 Apr 17.
Artigo em Zh | MEDLINE | ID: mdl-29690727

RESUMO

Objective: To detect potential pathogens including pseudorabies virus in patients with encephalitis of unknown etiology in China and describe novel encephalitic entities. Methods: Patients with clinically suspected infectious encephalitis were enrolled in a multicenter study to identify the pathogens in PUMCH Encephalitis Program.Next-generation sequencing(NGS) of cerebrospinal fluid (CSF) was used in patients with encephalitis of unknown etiology enrolled from 2016 to 2017.The patients diagnosed as PRV encephalitis were studied to describe this novel entity. Results: The four patients(3 male, 1 male, 38-54 years old) had occupational exposure to raw park when working in the production or marketing of pork and at least one got injured during pork-cutting.Two of them were confirmed with NGS of CSF, and anti-PRV antibodies were positive in 3 patients whose serum was available for serological analysis.They all presented with an acute onset of fever, convulsion, loss of consciousness and respiratory failure within 1 to 4 days and rapidly deteriorated even on extensive treatment.All the patients needed ICU admission and 3 needed mechanical ventilation.Two patients also had bilateral retinitis.Neuroimaging revealed symmetric gray matter lesions including limbic system, basal ganglia and midbrain without obvious hemorrhage.Lumbar puncture revealed elevated intracranial pressure and lymphocytic pleocytosis [(6-64)×10(6)/L] of CSF.The patients failed to response to the treatment of acyclovir combined with intravenous immunoglobulin and steroids.Modified Rankin Score was 3, 5, 5 and 6 (died) for the 4 patients respectively on last follow-up. Conclusions: PRV could be a cause of severe encephalitis.The patients with suspected pseudorabies encephalitis (PRE) need to be tested for PRV DNA timely.Severe encephalitis with bilateral involvement of limbic system, basal ganglion, thalamus and midbrain in patient with occupational exposure indicate this emerging infectious encephalitis.


Assuntos
Encefalite , Adulto , China , Herpesvirus Suídeo 1 , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Masculino , Pessoa de Meia-Idade
11.
Eur J Neurol ; 24(6): 844-850, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28470860

RESUMO

BACKGROUND AND PURPOSE: Myasthenia gravis (MG) is an autoimmune disease caused by antibody mediated impairment in the neuromuscular junction. Seronegative MG (SNMG) without antibodies against acetylcholine receptor (AChR) and muscle-specific kinase (MuSK) by routine assays accounts for about 20% of all MG patients. METHODS: Plasma from 81 Chinese MG patients previously found to be seronegative was tested by routine assays for AChR and MuSK antibodies. These samples were screened by (i) a novel, highly sensitive radioimmunoassay for AChR antibodies; (ii) cell-based assays for clustered AChR, MuSK and lipoprotein receptor-related protein 4 (LRP4) antibodies; (iii) a radioimmunoassay for titin antibodies. RESULTS: Antibodies to AChR, MuSK, LRP4 and titin were found in 25% (20/81), 4% (3/81), 7% (6/81) and 6% (5/78) of SNMG patients, respectively. In total, 37% of SNMG patients were found to be positive for at least one of the tested antibodies. AChR antibody positive patients had more severe disease (P = 0.008) and a trend towards fewer remissions/minimal manifestations than AChR antibody negative patients. The four patients with coexistence of antibodies had more severe disease, whilst the seronegative patients had milder MG (P = 0.015). CONCLUSIONS: Detection of multiple muscle antibodies by more sensitive assays provides additional information in diagnosing and subgrouping of MG and may guide MG treatment.


Assuntos
Autoanticorpos/sangue , Conectina/imunologia , Proteínas Relacionadas a Receptor de LDL/imunologia , Miastenia Gravis/imunologia , Receptores Proteína Tirosina Quinases/imunologia , Receptores Colinérgicos/imunologia , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Miastenia Gravis/sangue , Radioimunoensaio , Adulto Jovem
12.
J Biol Regul Homeost Agents ; 31(2): 459-464, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28685553

RESUMO

Many cases of liver carcinoma miss the opportunity of surgical treatment because of hidden onset and delayed diagnosis. In recent years, interventional treatment has gradually become a non-surgical method for treating liver carcinoma. To discuss the effects of oxaliplatin in combination with epirubicin in the treatment and its influence on prognosis, this study randomly selected 218 advanced primary liver carcinoma patients from Binzhou People’s Hospital, Binzhou, China and divided them into a control group (n=109) and an observation group (n=109). Patients in both groups were given interventional treatment. Patients in the control group were perfused with oxaliplatin, while patients in the observation group were perfused with oxaliplatin and epirubicin. The effectsat 6-month and 12-month survival rates were compared between the two groups. The results demonstrated that the overall effective rate and clinical benefit rate of the observation group were much higher than those of the control group (30.3% vs 11.9%; 79.8%; vs 44.3%) (P less than 0.05). The serum Alpha Fetal Protein (AFP) and Carcino Embryonie Antigen (CEA) levels of the observation group were much lower than those of the control group; the Karnofsky performance score of the observation group was much lower than that of the control group; the two differences had statistical significance (P less than 0.05). The 6-month survival rate of the observation group was 91.67%, higher than that of the control group (86.11%) (P>0.05). The 12-month survival rate of the observation group was 83.33%, much higher than that of the control group (61.11%) (P less than 0.05). The difference of the incidence of adverse reactions between the two groups had no statistical significance (P>0.05). Thus, it can be concluded that oxaliplatin in combination with epirubicin can improve survival quality, extend survival time, and decrease the serum AFP and CEA levels in the treatment of primary liver carcinoma, with definite effects but without aggravating toxic and side effects. Therefore, the therapy has important clinical value.


Assuntos
Quimioembolização Terapêutica/métodos , Epirubicina/administração & dosagem , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/terapia , Compostos Organoplatínicos/administração & dosagem , Piridinas/administração & dosagem , Cateterismo/métodos , Intervalo Livre de Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Taxa de Sobrevida , Fatores de Tempo
13.
Anim Genet ; 48(4): 455-458, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28294375

RESUMO

It has been shown that the oxidized low density lipoprotein receptor 1 (OLR1) gene plays an important role in the degradation of oxidized low density lipoprotein. Previous studies found a SNP in the 3'-untranslated region (3'-UTR) of the OLR1 gene associated with milk production traits in different dairy cattle populations and with loin eye area and marbling depth in beef cattle. MicroRNAs can regulate gene expression by binding the 3'-UTR of target genes to degrade or to repress the translation of target genes. Bioinformatics have shown that there is a binding site of bta-miR-370 in the 3'-UTR of the OLR1 gene, and a previous luciferase reporter assay system showed that the A/C mutation occurring in the 3'-UTR of this gene caused the binding sites of bta-miR-370 to disappear in HEK293 cells. To further validate whether OLR1 was the target gene of bta-miR-370, the over-expression and interference expression of bta-miR-370 were determined by transfecting bta-miR-370 mimics and inhibitor supplementations into bovine adipocyte. The qRT-PCR result showed that the relative expression of OLR1 gene significantly decreased in the mimics group compared to the control, whereas the expression level in inhibitor group was higher than its control group. The above results were further verified by a Western blot at the protein level. In addition, lipid formation analysis of bovine adipocytes was performed via oil red O staining, and we found that cytoplasm lipid droplets in the inhibitor group showed a tendency to increase compared to the control group, whereas in the mimics group, we observed an obvious decrease of cytoplasm lipid droplets compared to the control and inhibitor groups. Taken together, our data here suggest that bta-miR-370 has a negative regulation role for OLR1 both at the gene expression and protein levels and bovine adipocytes cytoplasm lipid droplets formation, which provides a reference for illustrating how the OLR1 gene affects milk production and beef quality traits in cattle.


Assuntos
Adipócitos/metabolismo , Bovinos/genética , MicroRNAs/genética , Receptores Depuradores Classe E/genética , Animais , Células Cultivadas , Citoplasma/química , Expressão Gênica , Lipídeos/química , Polimorfismo de Nucleotídeo Único
15.
Eur J Neurol ; 23(8): 1372-9, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27185333

RESUMO

BACKGROUND AND PURPOSE: Glucocorticoids (GCs) are the mainstay treatment of myasthenia gravis (MG). However, wide inter-individual variability exists in the response to GCs. METHODS: A Chinese cohort of 257 MG patients treated with GCs was evaluated for the association between 19 single nucleotide polymorphisms in the GR gene and clinical response to the initial 3 month GC therapy. A quantitative MG score decreasing by ≥3 units or becoming zero was defined as sensitivity to GCs. RESULTS: The rs17209237* G allele was less frequent in the GC insensitive group compared with the GC sensitive group [P = 0.013, odds ratio (OR) 0.119]. The rs9324921* A allele was more frequent in the GC insensitive group than in the GC sensitive group (P = 0.046, OR 1.94). Carriers of the rs17209237 G allele were less frequent in the GC insensitive group than in the GC sensitive group (dominant model, P = 0.009). Carriers of the rs9324921 A allele were more frequent in the GC insensitive group than in the GC sensitive group (dominant model, P = 0.037). Multivariate logistic regression revealed that the rs17209237 G allele carrier (P = 0.037, OR 0.12) and disease duration before GC treatment (P = 0.011, OR 3.45) were independent factors that contributed to GC efficacy. CONCLUSION: rs17209237 in the GR gene was identified as an independent factor that contributes to GC efficacy in MG patients. The genetic variations of the GR gene may play a role in predicting response to GC treatment.


Assuntos
Glucocorticoides/uso terapêutico , Miastenia Gravis/tratamento farmacológico , Miastenia Gravis/genética , Polimorfismo de Nucleotídeo Único , Receptores de Glucocorticoides/genética , Adulto , Alelos , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Farmacogenética
16.
Avian Pathol ; 45(1): 13-25, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26488442

RESUMO

Chicken Toll-like receptor 15 (ChTLR15) has been shown to participate in immune activation in response to various pathogens and in the innate defence against infection. Two genetically distinct Chinese breeds of chicken (Qinyuan Partridge and Baier breeds) were used to study the correlation between ChTLR15 single nucleotide polymorphisms and the natural infection status of salmonella in hens, and also to examine genetic and sex-specific effects on ChTLR15 mRNA expression in heterophils and spleen during acute infection with Salmonella enterica serovar Enteritidis (SE) from 1 to 10 days after experimental infection. Three single-nucleotide polymorphisms (G168A, C726T and A1166G) in a single exon of ChTLR15 were identified in the two breeds, but only C726T showed a significant association with salmonella infection. Compared with layer-type Baier chicks, meat-type Qingyuan chicks showed a higher tolerance for capture stress and (SE) infection, as measured, respectively, by the modified body weight of chicks in the control group and in the infection group. Meanwhile, ChTLR15 down-regulation in heterophils and up-regulation in spleen were involved in the response to pathogenic SE colonization during the acute infection period. These significant genetic effects in females led to greater differences in both innate and adaptive immune responses than those exhibited in males. These results suggest that genetics, time and gender play important roles in the modulation of ChTLR15 mRNA level elicited by the SE-mediated immune response differentially in the two genetically distinct breeds, with a focus on sexual dimorphism.


Assuntos
Galinhas/genética , Polimorfismo de Nucleotídeo Único/genética , Doenças das Aves Domésticas/imunologia , Salmonelose Animal/imunologia , Salmonella enterica/fisiologia , Receptores Toll-Like/genética , Animais , Galinhas/imunologia , Regulação para Baixo , Feminino , Masculino , Doenças das Aves Domésticas/microbiologia , RNA Mensageiro/genética , Salmonelose Animal/microbiologia , Caracteres Sexuais , Especificidade da Espécie , Baço/imunologia , Regulação para Cima , Aumento de Peso
17.
Phys Chem Chem Phys ; 18(45): 31115-31124, 2016 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-27812565

RESUMO

Based on first principles calculations, we systematically investigated the structural, electronic and ferroelectric properties of Pt-BaTiO3-Pt ferroelectric tunnel junctions (FTJs) with CO adsorbed on the surface of the top electrode. Changes of electrode/barrier thickness and different adsorption sites were considered. We found that although the CO molecule is not directly adsorbed on the surface of the ferroelectric thin film (FTF), the local properties of the BaTiO3 FTFs were still significantly changed by CO adsorptions, e.g. the change of polarization bistability. Furthermore, by simulating isolated geometry, we found that the orientation of polarization induced by CO adsorptions exhibited sensitive dependence on the thickness of the adsorbed electrode. The adsorption energy was found to change with the change of both the thickness of the electrodes and the polarization orientation in the barrier, which provides a modifiable effect by virtue of the surface ambient chemicals controlling the bulk ferroelectric properties. An electronic structure analysis reveals that the work function of the adsorbed electrode is altered by the adsorption, and the effect can be reversed as the electrode thickness changes. Our findings should provide a new method to tailor the magnitude and bistability of polarization in ferroelectric thin films (FTF) as well as the top electrode surface reactivity in FTJs, which has a significant prospect of application in FTJ-based nanoscale multifunctional devices.

18.
Dis Esophagus ; 29(6): 621-6, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25951709

RESUMO

In the present study, we aimed to evaluate the expression of special AT-rich sequence-binding protein 1 (SATB1) in esophageal squamous cell carcinoma (ESCC) and assess the correlation between its expression and the clinicopathological features and prognosis of the disease. SATB1 expression in ESCC tissue was determined by using immunohistochemical analysis, quantitative real-time polymerase chain reaction, and western blot analysis. The relationship between SATB1 expression and clinicopathological features was examined by using the chi-squared test, and the survival rate was calculated by using the Kaplan-Meier survival curve. The correlation between the indicators and patient survival was estimated by using a Cox regression analysis. High SATB1 expression in was detected in 48.3% and 7.8% of ESCC and normal esophagus tissues (P < 0.05), respectively. SATB1 expression did not significantly correlate with clinicopathological features. The Kaplan-Meier curve indicated that patients with high SATB1 expression had significantly shorter survival than those with low SATB1 expression. In a multivariate Cox regression model, high SATB1 expression was identified as an independent prognostic factor for patients with ESCC. In conclusion, these results suggest that high SATB1 expression is predictive of poor prognosis in ESCC and may be a promising new candidate for targeted therapies for ESCC.


Assuntos
Carcinoma de Células Escamosas/genética , Neoplasias Esofágicas/genética , Proteínas de Ligação à Região de Interação com a Matriz/genética , RNA Mensageiro/metabolismo , Adulto , Idoso , Western Blotting , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/mortalidade , Neoplasias Esofágicas/metabolismo , Neoplasias Esofágicas/mortalidade , Carcinoma de Células Escamosas do Esôfago , Feminino , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Masculino , Proteínas de Ligação à Região de Interação com a Matriz/metabolismo , Pessoa de Meia-Idade , Análise Multivariada , Projetos Piloto , Prognóstico , Modelos de Riscos Proporcionais , Reação em Cadeia da Polimerase em Tempo Real , Estudos Retrospectivos
19.
Genet Mol Res ; 15(2)2016 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-27173335

RESUMO

Partial duplication of the long arm of chromosome 11 and the partial trisomy of 22q are uncommon karyotypic abnormalities. Here, we report the case of a 6-year-old girl who showed partial trisomy of 11q and 22q, as a result of a maternal balanced reciprocal translocation (11;22), and exhibited dysmorphic features, severe intellectual disability, brain malformations, and speech delay related to this unique chromosomal abnormality. Array comparative genomic hybridization (array CGH) revealed a gain in copy number on the long arm of chromosome 11, spanning at least 18.22 Mb. Additionally, there was a gain in copy number on the long arm of chromosome 22, spanning at least 3.46 Mb. FISH analysis using a chromosome 11 short arm telomere probe (11p14.2), a chromosome 11 long arm telomere probe (11q24.3), and a chromosome 22 long arm telomere probe (22q13.33) confirmed the origin of the marker chromosome. It has been confirmed by the State Key Laboratory of Medical Genetics of China that this is the first reported instance of the karyotype 47,XX, +der(22)t(11;22)(q23.3;q11.1)mat in the world. Our study reports an additional case that can be used to further characterize and delineate the clinical ramifications of partial trisomy of 11q and 22q.


Assuntos
Anormalidades Múltiplas/genética , Deficiência Intelectual/genética , Trissomia/genética , Criança , Cromossomos Humanos Par 11/genética , Cromossomos Humanos Par 22/genética , Hibridização Genômica Comparativa/métodos , Feminino , Humanos , Cariótipo
20.
Zhonghua Yi Xue Za Zhi ; 96(15): 1208-11, 2016 Apr 19.
Artigo em Zh | MEDLINE | ID: mdl-27117370

RESUMO

OBJECTIVE: To investigate the structural changes of gray matter in women with primary dysmenorrhea (PDM) and discuss the potential relationships between the changes and etiology of the disease. METHODS: We used an optimized voxel-based morphometry (VBM) approach to compare total and regional volumetric changes of gray matter in 20 primary dysmenorrhea patients with 20 healthy age and menstrual cycle matched controls.All subjects were patients from the outpatient department of Tongji Hospital in 2015. RESULTS: Abnormal volumetric decreases of gray matter were found in the left and right parahippocampus, the left and right middle temporal gyrus, the left and right superior parietal lobule, the left postcentral cortex, the left and right inferior parietal lobule, which involved in pain transmission, pain modulation and somatic sensation. CONCLUSION: Abnormal gray matter volume changes are present in some encephalic regions of PDM patients.The functions of these regions are associated with pain modulation and somatic sensation, which suggests the changes are related with PDM.


Assuntos
Encéfalo/patologia , Dismenorreia/fisiopatologia , Substância Cinzenta/patologia , Mapeamento Encefálico , Feminino , Humanos , Imageamento por Ressonância Magnética
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