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1.
J Allergy Clin Immunol ; 153(3): 831-843, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38040041

RESUMO

BACKGROUND: To date, no publicly accessible platform has captured and synthesized all of the layered dimensions of genotypic, phenotypic, and mechanistic information published in the field of inborn errors of immunity (IEIs). Such a platform would represent the extensive and complex landscape of IEIs and could increase the rate of diagnosis in patients with a suspected IEI, which remains unacceptably low. OBJECTIVE: Our aim was to create an expertly curated, patient-centered, multidimensional IEI database that enables aggregation and sophisticated data interrogation and promotes involvement from diverse stakeholders across the community. METHODS: The database structure was designed following a subject-centered model and written in Structured Query Language (SQL). The web application is written in Hypertext Preprocessor (PHP), Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), and JavaScript. All data stored in the Genetic Immunology Advisor (GenIA) are extracted by manually reviewing published research articles. RESULTS: We completed data collection and curation for 24 pilot genes. Using these data, we have exemplified how GenIA can provide quick access to structured, longitudinal, more thorough, comprehensive, and up-to-date IEI knowledge than do currently existing databases, such as ClinGen, Human Phenotype Ontology (HPO), ClinVar, or Online Mendelian Inheritance in Man (OMIM), with which GenIA intends to dovetail. CONCLUSIONS: GenIA strives to accurately capture the extensive genetic, mechanistic, and phenotypic heterogeneity found across IEIs, as well as genetic paradigms and diagnostic pitfalls associated with individual genes and conditions. The IEI community's involvement will help promote GenIA as an enduring resource that supports and improves knowledge sharing, research, diagnosis, and care for patients with genetic immune disease.


Assuntos
Bases de Dados Genéticas , Software , Humanos
2.
Clin Immunol ; 265: 110292, 2024 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-38914362

RESUMO

OTULIN encodes an eponymous linear deubiquitinase (DUB) essential for controlling inflammation as a negative regulator of the canonical NF-κB signaling pathway via the regulation of M1-Ub dynamics. Biallelic loss-of-function (LOF) mutations in OTULIN cause an autosomal recessive condition named Otulin-Related Autoinflammatory Syndrome (ORAS), also known as Otulipenia or AutoInflammation, Panniculitis, and Dermatosis Syndrome (AIPDS). Monoallelic OTULIN LOF, also known as OTULIN Haploinsufficiency (OHI) or Immunodeficiency 107 (IMD107), has been linked to an incompletely penetrant, dominantly inherited susceptibility to invasive Staphylococcal infections. At the same time, a recent novel ORAS-like inflammatory syndrome was described in association with a heterozygous missense mutation that appears to exert dominant negative (DN) effects. In this manuscript, we report the identification of a novel homozygous missense mutation, c.595 T > A; p.(Trp199Arg), in a Moroccan infant with an ORAS phenotype and provide experimental evidence for its pathogenicity. We go on to systematically review the literature for OTULIN-associated conditions by using the GenIA database (www.geniadb.net) to collect, extract and harmonize all clinical, laboratory and functional data for published patients and variants. Our comprehensive synthesis of genotypic, phenotypic, and mechanistic data enables a more in-depth view of the diverse mechanisms and pathways by which the OTULIN pathogenic variants may lead to human immune disease. This review may help variant classification activities and inform future variant evaluation, as well as the development of diagnostic and management guidelines. It also identifies current knowledge gaps and raises additional questions warranting future investigation.

3.
Clin Immunol ; 256: 109758, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37678716

RESUMO

The advent of next-generation sequencing (NGS) technologies has greatly expanded our understanding of both the clinical spectra and genetic landscape of inborn errors of immunity (IEIs). Endogamous populations may be enriched for unique, ancestry-specific disease-causing variants, a consideration that significantly impacts molecular testing and analysis strategies. Herein, we report on the application of a 2-step NGS-based testing approach beginning with targeted gene panels (TGPs) tailored to specific IEI subtypes and reflexing to whole exome sequencing (WES) if negative for Northwest Algerian patients with suspected IEIs. Our overall diagnostic yield of 57% is comparable to others broadly applying short-read NGS to IEI detection, but data from our localized cohort show some similarities and differences from NGS studies performed on larger regional IEI cohorts. This suggests the importance of tailoring diagnostic strategies to local demographics and needs, but also highlights ongoing concerns inherent to the application of genomics for clinical IEI diagnostics.


Assuntos
Genômica , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Sequenciamento do Exoma
4.
Clin Lab ; 69(11)2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-37948477

RESUMO

BACKGROUND: We aimed to assess the role of histogram analysis of DCE-MRI parameters for accurately distinguishing renal clear cell carcinoma from renal hamartoma with minimal fat. METHODS: Patients with renal tumors were enrolled from January 2013 to December 2015, including renal clear cell carcinoma (n = 39) and renal hamartoma (n = 10). Preoperative DCE-MR Imaging was performed, and whole-tumor regions of interest were drawn to obtain the corresponding histogram parameters, including skewness, kurtosis, frequency size, energy, quartile, etc. Histogram parameters differences between renal clear cell car-cinoma and renal hamartoma with minimal fat were compared. The diagnostic value of each significant parameter in predicting malignant tumors was determined. RESULTS: Histogram parameters of the DCE map contributed to differentiating the benign from malignant renal tumor groups. Histogram analysis of DCE maps could effectively present the heterogeneity of renal tumors and aid in differentiating benign and malignant tumors. ROC analysis results indicated that when frequency size = 1,732 was set as the threshold value, favorable diagnostic performance in predicting malignant tumors was achieved (AUC - 0.964; sensitivity - 84.6%; specificity - 100%), followed by skewness, Energy, Entropy, Uniformity, quartile 5, quartile 50, and kurtosis. CONCLUSIONS: Histogram analysis of DCE-MRI shows promise for differentiating benign and malignant renal tumors. Frequency size was the most significant parameter for predicting renal clear cell carcinoma.


Assuntos
Carcinoma de Células Renais , Hamartoma , Neoplasias Renais , Humanos , Imageamento por Ressonância Magnética/métodos , Neoplasias Renais/diagnóstico por imagem , Carcinoma de Células Renais/diagnóstico por imagem , Curva ROC , Estudos Retrospectivos
5.
Zhonghua Yan Ke Za Zhi ; 59(4): 245-249, 2023 Apr 11.
Artigo em Chinês | MEDLINE | ID: mdl-37012586

RESUMO

The advent of artificial intelligence (AI) technology has led to revolutionary advancements in the diagnosis and treatment of ophthalmic diseases, introducing a novel AI-assisted diagnostic approach for ophthalmology that is rich in imaging diagnostic technologies. However, as clinical applications continue to evolve, AI research in ophthalmology faces challenges such as the lack of standardized datasets and innovative algorithm models, insufficient cross-modal information fusion, and limited clinical interpretability. In response to the growing demand for AI research in ophthalmology, it is essential to establish ophthalmic data standards and sharing platforms, innovate core algorithms, and develop clinical logic interpretable models for the screening, diagnosis, and prediction of eye diseases. Additionally, the deep integration of cutting-edge technologies such as 5G, virtual reality, and surgical robots would advance the development of ophthalmic intelligent medicine into a new phase.


Assuntos
Oftalmopatias , Oftalmologia , Humanos , Inteligência Artificial , Oftalmologia/métodos , Algoritmos , Oftalmopatias/diagnóstico
6.
Osteoporos Int ; 33(10): 2137-2153, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35687123

RESUMO

This systematic review and meta-analysis estimated the global, regional prevalence, and risk factors of osteoporosis. Prevalence varied greatly according to countries (from 4.1% in Netherlands to 52.0% in Turkey) and continents (from 8.0% in Oceania to 26.9% in Africa). Osteoporosis is a common metabolic bone disorder in the elderly, usually resulting in bone pain and an increased risk of fragility fracture, but few summarized studies have guided global strategies for the disease. Therefore, we pooled the epidemiologic data to estimate the global, regional prevalence, and potential risk factors of osteoporosis. We conducted a comprehensive literature search through PubMed, EMBASE, Web of Science, and Scopus, to identify population-based studies that reported the prevalence of osteoporosis based on the World Health Organization (WHO) criteria. Meta-regression and subgroup analyses were used to explore the sources of heterogeneity. The study was registered in the PROSPERO database (CRD42021285555). Of the 57,933 citations evaluated, 108 individual studies containing 343,704 subjects were included. The global prevalence of osteoporosis and osteopenia was 19.7% (95%CI, 18.0%-21.4%) and 40.4% (95%CI, 36.9%-43.8%). Prevalence varied greatly according to countries (from 4.1% in Netherlands to 52.0% in Turkey) and continents (from Oceania 8.0% to 26.9% in Africa). The prevalence was higher in developing countries (22.1%, 95%CI, 20.1%-24.1%) than in developed countries (14.5%, 95%CI, 11.5%-17.7%). Our study indicates a considerable prevalence of osteoporosis among the general population based on WHO criteria, and the prevalence varies substantially between countries and regions. Future studies with robust evidence are required to explore risk factors to provide effective preventive strategies for the disease.


Assuntos
Doenças Ósseas Metabólicas , Osteoporose , Idoso , Doenças Ósseas Metabólicas/etiologia , Saúde Global , Humanos , Osteoporose/diagnóstico , Osteoporose/epidemiologia , Osteoporose/etiologia , Prevalência , Fatores de Risco , Organização Mundial da Saúde
7.
PLoS Genet ; 15(11): e1008426, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31765372

RESUMO

DNA polymerase epsilon (Pol ε) is critical for genome duplication, but little is known about how post-translational modification regulates its function. Here we report that the Pol ε catalytic subunit Pol2 in yeast is sumoylated at a single lysine within a catalytic domain insertion uniquely possessed by Pol2 family members. We found that Pol2 sumoylation occurs specifically in S phase and is increased under conditions of replication fork blockade. Analyses of the genetic requirements of this modification indicate that Pol2 sumoylation is associated with replication fork progression and dependent on the Smc5/6 SUMO ligase known to promote DNA synthesis. Consistently, the pol2 sumoylation mutant phenotype suggests impaired replication progression and increased levels of gross chromosomal rearrangements. Our findings thus indicate a direct role for SUMO in Pol2-mediated DNA synthesis and a molecular basis for Smc5/6-mediated regulation of genome stability.


Assuntos
Proteínas de Ciclo Celular/genética , DNA Polimerase II/genética , DNA/biossíntese , Proteínas de Saccharomyces cerevisiae/genética , Sumoilação/genética , Domínio Catalítico/genética , DNA/genética , Replicação do DNA/genética , Instabilidade Genômica/genética , Lisina/genética , Complexos Multiproteicos/genética , Mutação/genética , Fase S/genética , Saccharomyces cerevisiae/genética , Proteínas Modificadoras Pequenas Relacionadas à Ubiquitina/genética , Telômero/genética
8.
Zhonghua Yan Ke Za Zhi ; 58(2): 85-89, 2022 Feb 11.
Artigo em Chinês | MEDLINE | ID: mdl-35144347

RESUMO

Dry eye is a common ocular surface disease worldwide that affects the patients' visual quality and life quality. Correctly distinguishing its etiology, severity and subtypes is the basis for precise diagnosis and effective treatment. This article summarizes the challenges and bottlenecks in the development of dry eye precise diagnosis, and discusses the current situation and development trend of dry eye diagnosis from traditional evaluation methods to novel diagnostic techniques, aiming to provide reference and guidance for promotion of clinical precise diagnosis of dry eye.


Assuntos
Síndromes do Olho Seco , Síndromes do Olho Seco/diagnóstico , Humanos , Qualidade de Vida
9.
PLoS Genet ; 14(1): e1007129, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29360860

RESUMO

Smc5/6, a member of the conserved SMC family of complexes, is essential for growth in most organisms. Its exact functions in a mitotic cell cycle are controversial, as chronic Smc5/6 loss-of-function alleles produce varying phenotypes. To circumvent this issue, we acutely depleted Smc5/6 in budding yeast and determined the first cell cycle consequences of Smc5/6 removal. We found a striking primary defect in replication of the ribosomal DNA (rDNA) array. Each rDNA repeat contains a programmed replication fork barrier (RFB) established by the Fob1 protein. Fob1 removal improves rDNA replication in Smc5/6 depleted cells, implicating Smc5/6 in the management of programmed fork pausing. A similar improvement is achieved by removing the DNA helicase Mph1 whose recombinogenic activity can be inhibited by Smc5/6 under DNA damage conditions. DNA 2D gel analyses further show that Smc5/6 loss increases recombination structures at RFB regions; moreover, mph1∆ and fob1∆ similarly reduce this accumulation. These findings point to an important mitotic role for Smc5/6 in restraining recombination events when protein barriers in rDNA stall replication forks. As rDNA maintenance influences multiple essential cellular processes, Smc5/6 likely links rDNA stability to overall mitotic growth.


Assuntos
Proteínas de Ciclo Celular/genética , Replicação do DNA , DNA Ribossômico/genética , Recombinação Genética/genética , Proteínas de Saccharomyces cerevisiae/genética , Saccharomyces cerevisiae/genética , Cromossomos Fúngicos/genética , Cromossomos Fúngicos/metabolismo , RNA Helicases DEAD-box/genética , RNA Helicases DEAD-box/metabolismo , Dano ao DNA , DNA Fúngico/genética , DNA Fúngico/metabolismo , Proteínas de Ligação a DNA/genética , Proteínas de Ligação a DNA/metabolismo , Mutação , Saccharomyces cerevisiae/metabolismo , Proteínas de Saccharomyces cerevisiae/metabolismo
10.
Zhonghua Zhong Liu Za Zhi ; 43(7): 751-755, 2021 Jul 23.
Artigo em Chinês | MEDLINE | ID: mdl-34289568

RESUMO

Statins, as lipid-regulating drugs, have been widely used in the treatment for hyperlipidemia and the primary and secondary prevention of cardio-cerebrovascular diseases. Hepatocellular carcinoma (HCC) is a serious burden of liver disease in China with poor prognosis, thus effective adjuvant drug used for HCC treatment has attracted much attention. Statins can suppress tumor growth, decrease the risk of tumorigenesis and postoperative recurrence of HCC, extend the survival time and improve the therapeutic effect of other treatment, therefore might increase the benefit obtained by the HCC patients. Statins also can impact the expression of MAPK/ERK signaling pathway, promote the apoptosis of malignant cells and ameliorate the HCC risk of hepatitis B virus infected patients. Statins not only prevents the HCC, but also has part therapeutic effect on the different stage of HCC. Although it can't replace the operation, radiofrequency ablation, molecular targeted treatment and immunotherapy currently, statins may be a potential adjuvant drug to provide clinical benefit for HCC patients. The advancement of statins application in the prevention and treatment of HCC has attracted more attention recently, however, discussion and controversy also existed about whether it can eventually become an adjuvant therapy for HCC. The purpose of this paper is to summarize and comment on the new development and disputes of statins application in the prevention and treatment of HCC in recent years, to provide help for the future clinical practice.


Assuntos
Carcinoma Hepatocelular , Inibidores de Hidroximetilglutaril-CoA Redutases , Neoplasias Hepáticas , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/prevenção & controle , China , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/prevenção & controle , Recidiva Local de Neoplasia/prevenção & controle
11.
Zhonghua Yu Fang Yi Xue Za Zhi ; 53(2): 196-201, 2019 Feb 06.
Artigo em Chinês | MEDLINE | ID: mdl-30744296

RESUMO

Objective: To investigate the association between blood lipid and calcaneus bone mineral density (BMD) in children and adolescents aged 6-16 years in Beijing. Methods: Children and adolescents were selected in 30 schools (8 primary schools, 21 middle schools and one 12-year education school) from Dongcheng, Tongzhou, Fangshan and Miyun districts of Beijing by using a stratified cluster sampling method from November 2017 to January 2018. A total of 14 303 students in grade 1 to 4 of primary school, grade 1 of junior and senior middle school were enrolled after excluding subjects who were not able to participate into this study due to trauma or other uncomfortable physical conditions or with missing key values or with diabetes and kidney diseases. Questionnaire survey, blood lipid and calcaneus BMD were conducted. Multivariate linear regression was applied to quantify the association between calcaneal BMD as a dependent variable and blood lipid level as an independent variable after adjusting for the potential confounding factors. Furthermore, quantile regression was used to analyze the association between blood lipid level and different percentiles (P(25), P(50) and P(75)) of ultrasonic velocity values of bone mineral density, and parallel test was conducted for regression coefficients of different percentiles. Results: A total of 14 303 participants aged (11.4±3.3) years (49.9% boys) were involved in the analysis. The mean age of 14 303 participants was (11.0±3.3) years. 7 142 boys accounted for 49.9%. The mean±SD of calcaneal BMD, total cholesterol (TC), low density lipoprotein-cholesterol (LDL-C), and high density lipoprotein-cholesterol (HDL-C) were (1 540.9±33.8) m/s, (3.90±0.76), (2.18±0.62), and (1.40±0.32) mmol/L, respectively. The P(5)0 (P(25), P(75)) of triglyceride (TG) was 0.69 (0.49-0.94) mmol/L. After the adjustment of age, height, smoking, drinking, vitamin D and calcium supplementation, dairy intake, physical activity, FMI, and MMI, a significantly inverse association (P<0.05) between TG level and calcaneus BMD was observed in both genders, which the regression coefficients (95%CI) in boys and girls were -0.064 (-0.085, -0.044) and -0.073 (-0.094, -0.053), respectively. Conclusion: The level of BMD was associated with TG in boys and girls. Therefore, it is important to prevent children from hypertriglyceridemia for the bone health promotion.


Assuntos
Densidade Óssea , Calcâneo , Lipídeos/sangue , Adolescente , Pequim , Criança , Feminino , Humanos , Masculino , Triglicerídeos/sangue
12.
Liver Int ; 38(10): 1867-1874, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29297975

RESUMO

BACKGROUND AND AIMS: Hematopoietic stem cell transplantation related hepatic vein occlusive disease (HSCT-HVOD) has been researched extensively; however, little is known about the clinical features and treatment of pyrrolizidine alkaloid-induced HVOD (PA-HVOD). This retrospective single centre study examined the clinical and laboratory characteristics of 108 patients with acute PA-HVOD and explored the efficacy of anticoagulation and TIPS therapy. METHODS: The study included 108 consecutive patients with PA-HVOD between July 2008 and June 2016. The clinical manifestations and the results of laboratory and imaging tests were evaluated. The survival rates of patients treated with different approaches were recorded. RESULTS: Serum total bilirubin was <34.2 µmol/L (2 mg/dL) in approximately 40% of patients. More than 90% of patients were presented with hepatomegaly, uneven liver perfusion in the balance phase, compressive stenosis of the hepatic segmental inferior vena cava and decreased peak velocity of portal vein blood flow. Severe portal hypertension was observed in all patients undergoing HVPG examination or TIPS operation. Anticoagulation therapy with low molecular weight heparin combined with warfarin was significantly more effective than liver protection and supportive therapy, and TIPS further improved the prognosis of patients who did not respond to anticoagulation therapy. The total effective rate of the anticoagulation-TIPS ladder therapeutic strategy was 91%. CONCLUSIONS: Patients with PA-HVOD had different characteristics than those with HSCT-HVOD. Anticoagulation and TIPS treatment may be effective for patients with PA-HVOD.


Assuntos
Hepatopatia Veno-Oclusiva/induzido quimicamente , Fígado/patologia , Alcaloides de Pirrolizidina/efeitos adversos , Idoso , Anticoagulantes/uso terapêutico , Bilirrubina/sangue , Feminino , Hepatopatia Veno-Oclusiva/terapia , Humanos , Hipertensão/etiologia , Masculino , Pessoa de Meia-Idade , Derivação Portossistêmica Transjugular Intra-Hepática , Prognóstico , Estudos Retrospectivos
13.
Zhonghua Nei Ke Za Zhi ; 57(9): 679-682, 2018 Sep 01.
Artigo em Chinês | MEDLINE | ID: mdl-30180454

RESUMO

The safety of decitabine as bridging treatment before allogeneic hematopoietic stem cell transplantation (allo-HSCT) in children with refractory hematological malignancies was evaluated. All 11 cases succeeded in hematopoietic reconstitution. The main adverse reaction was hematological toxicity. Neither did infections occur, nor drug-induced liver damage and renal impairment during decitabine administration. Most cases showed grade Ⅰ-Ⅱgastrointestinal adverse events. One case was diagnosed as severe acute graft versus host disease and died of intracranial hemorrhage on day 61 after allo-HSCT. The other 10 patients survived. Decitabine bridge is a safe regimen before allo-HSCT in children with refractory hematological malignancies.


Assuntos
Antimetabólitos Antineoplásicos/uso terapêutico , Azacitidina/análogos & derivados , Neoplasias Hematológicas/terapia , Transplante de Células-Tronco Hematopoéticas , Azacitidina/uso terapêutico , Criança , Protocolos Clínicos , Decitabina , Doença Enxerto-Hospedeiro , Humanos , Condicionamento Pré-Transplante
14.
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi ; 36(11): 863-867, 2018 Nov 20.
Artigo em Chinês | MEDLINE | ID: mdl-30646657

RESUMO

Objective: Analyze the detection rates of occupational contraindication and suspected occupational disease from the employee exposure to noise and describe the distribution characteristics. Methods: According to the Technical Specifications for Occupational Health Surveillance (GBZ 188-2014) 、Diagnosis of Occupational Noise-induced Deafness (GBZ 49-2014) and Guideline of Identification of Contraindication to Job Placement (GBZ/T 260-2014) , calculate and analyze the occupational contraindication and suspected occupational disease detection rates of 149 271 workers from January 1st to December 31st in 2015 who were exposed to noise. Analyze the detection rates distribution characteristics between different gender, age, seniority, industry and enterprise scale. Results: The detection rates of occupational contraindication is 2.08%. The suspected occupational disease detection rates of absences workers (2.13%) is higher than during (2.03%) . The occupational contraindication detection rates of< age 20 (2.64%) , 41~50 years old (2.48%) and<1 working years (5.35%) , are higher than others. The detection rates of suspected occupational disease increases with the growth of ages and working years. The occupational contraindication detection rates of scientific research and technology services industry (10.46%) is the highest. The suspected occupational disease detection rates of transportation warehousing and postal services (5.88%) is the highest. The occupational contraindication detection rates of medium-sized enterprise (2.27%) is the highest, meanwhile, the microenterprise's (1.60%) is the lowest. The suspected occupational disease detection rates of large-scale enterprise (3.21%) is the highest, meanwhile, the microenterprise's (1.33%) is the lowest. Conclusion: Enterprise should insist on regular occupational health examination, strengthen screening of occupational contraindication in new workers, especially pre-job workers and detect the occupational disease patients early. Focus on non-traditional noise industries above mentioned, improve intensity of noise hazards prevention and control. The detection rates of occupational contraindication and suspected occupational disease can be used as a reference standard for the quality control of occupational examination and report of medical institutions.


Assuntos
Indústria Química , Estresse Ocupacional/epidemiologia , Estresse Psicológico/psicologia , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Petróleo , Fatores de Risco , Adulto Jovem
16.
Cell Mol Biol (Noisy-le-grand) ; 63(10): 49-53, 2017 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-29096743

RESUMO

Oxidative stress plays a critical task in the biochemical and pathological alteration linked with myocardial ischemic-reperfusion injury (IRI). This warrants identifying agents with a potential for preventing such damage in an effective way. A novel plant based product, Pycnogenol, obtained from the French maritime pine (Pinus pinaster ssp. atlantica) bark extract was known for its tremendous antioxidant potential (both in vivo, in vitro). It was able to attenuate the symptoms of immune dysfunction through restoring a cellular antioxidant status in low micronutrient-induced immune deficient mice. Consequently, the present study was deals with the determination of protective effect of Pycnogenol in ischemic-reperfusion injury (IRI) in rats via Non-recirculating Langendorff's technique. The effect of Pycnogenol  on the level of various key biomarkers in the rat heart homogenate was determined, such as, myocardial thiobarbituric acid reactive substances (TBARS, a marker of lipid peroxidation), lactic dehydrogenase (LDH) (a marker of tissue injury) and effect on endogenous antioxidants, e.g., superoxide dismutase (SOD), catalase (CAT), glutathione (GSH) and glutathione peroxidase (GPx). The activity of these biomarkers appreciably improved in Pycnogenol-treated group than IRI group (P < 0.05). The effect of Pycnogenol was further confirmed via histopathological examination of cardiac tissues, which suggests that, it considerably improved the injury related to tissue damage through suppression of edema and infiltration of neutrophil compared to IRI group. It also showed modulation of the expression of apoptotic factors, e.g. Bcl-2, bax and caspase-9 as confirmed by western blot analysis.


Assuntos
Cardiotônicos/farmacologia , Flavonoides/farmacologia , Traumatismo por Reperfusão Miocárdica/tratamento farmacológico , Extratos Vegetais/farmacologia , Animais , Biomarcadores Farmacológicos/análise , Cardiotônicos/uso terapêutico , Edema Cardíaco/tratamento farmacológico , Edema Cardíaco/metabolismo , Flavonoides/uso terapêutico , Preparação de Coração Isolado , Masculino , Infiltração de Neutrófilos/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/uso terapêutico , Ratos , Ratos Wistar
17.
Skin Res Technol ; 23(3): 392-398, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27868246

RESUMO

BACKGROUND/PURPOSE: We investigate the use of skin texture features from the inner forearm as a means for personal identification. The forearm offers a number of potential advantages in that it is a fairly accessible area, and, compared with other zones such as fingertips, is less exposed to the elements and more shielded from wear. METHODS: We extract and combine skin textural features from two imaging devices (optical and capacitive) with the aim of discriminating between different individuals. Skin texture images from 43 subjects were acquired from three different body parts (back of the hand, forearm and palm); testing used the two sensors either separately or in combination. RESULTS: Skin texture features from the forearm proved effective for discriminating between different individuals with overall recognition accuracy approaching 96%. CONCLUSIONS: We found that skin texture features from the forearm are highly individual-specific and therefore suitable for personal identification. Interestingly, forearm skin texture features yielded significantly better accuracy compared to the skin of the back of the hand and of the palm of the same subjects.


Assuntos
Imagem Multimodal/métodos , Reconhecimento Automatizado de Padrão/métodos , Registros/normas , Pele/diagnóstico por imagem , Adolescente , Adulto , Feminino , Antebraço/anatomia & histologia , Antebraço/diagnóstico por imagem , Humanos , Processamento de Imagem Assistida por Computador/métodos , Masculino , Pessoa de Meia-Idade , Imagem Multimodal/tendências , Estudo de Prova de Conceito , Pele/anatomia & histologia , Adulto Jovem
18.
J Environ Sci Health B ; 52(2): 77-83, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28099088

RESUMO

Chlorpyrifos (CPF) is a widely used organophosphorus pesticide with developmental neurotoxicity such as morphogenesis toxicity. In the present study, we assessed the effects of prenatal CPF exposure on systemic parameters and cytoarchitecture of medial prefrontal cortex (mPFC) in adulthood. Gestational dams were exposed to 5mg/kg/d of CPF during gestational days 13-17, while body weight, organ coefficient, and neuron and glia counts of offspring were determined on postnatal day 60. Our results showed that CPF treatment induced little or no effects on body weight and organ coefficients. There were also no significant pathological changes in mPFC. However, neuron and glia count analysis showed that CPF treatment reduced neuron and glia counts in anterior cingulate, prelimbic, and infralimbic areas of mPFC. The CPF react pattern was similar in both sexes, and there was no statistical difference in most of the sub-regions. Thus, our results revealed an embryonic origin brain deficit induced by gestational mother pesticide exposure.


Assuntos
Encéfalo/patologia , Clorpirifos/toxicidade , Neurônios/efeitos dos fármacos , Praguicidas/toxicidade , Efeitos Tardios da Exposição Pré-Natal/patologia , Animais , Peso Corporal/efeitos dos fármacos , Encéfalo/efeitos dos fármacos , Feminino , Masculino , Exposição Materna/efeitos adversos , Camundongos Endogâmicos ICR , Neuroglia/efeitos dos fármacos , Neuroglia/patologia , Neurônios/patologia , Córtex Pré-Frontal/efeitos dos fármacos , Córtex Pré-Frontal/patologia , Gravidez
19.
Zhonghua Yu Fang Yi Xue Za Zhi ; 51(11): 988-993, 2017 Nov 06.
Artigo em Chinês | MEDLINE | ID: mdl-29136743

RESUMO

Objective: To understand the incidence and related factors of HIV-1 drug resistance among HIV/AIDS patients experiencing treatment failure in Jiangsu province, China. Methods: The HIV/AIDS integrated prevention and control data information management system of China were used to collect the basic data of patients, blood specimens were collected from patients who had antiretroviral therapy (ART) failure with ≥12 months and older than 18 years in 2016 in Jiangsu, excluding cases with missing information, 713 cases were enrolled in this study. HIV-1 RNA was extracted, and then pol gene region was amplified and sequenced. The obtain sequences were submitted to Stanford University HIV Drug Resistance Database to interpret and analyse HIV-1 drug resistance and sub-types. Multivariate logistic regression model was used to explore the related factors of drug resistance. Results: A total of 579 subjects were amplified successfully, male accounted for 85.66% (496 cases), and the median age was 39 years old. The main route of infection was sexual transmission (553 cases, 95.51%). A total of 331 patients with drug resistance gene mutation were detected, drug resistance mutation rate was 57.18%. Compared with patients with baseline CD4(+)T cell count >500 cells/µl, patients with CD4(+)T cell count in 201-500 cells/mm(3) and ≤200 cells/µl had a higher incidence of genetic drug resistance, the odds ratio was 3.33 and 6.87, respectively. Compared with patients with treatment less than 24 months, patients treated for 25-48 months had a higher incidence of drug resistance, the odds ratio was 1.88. Compared with patients infected by CRF07_BC strains, patients infected by CRF01_AE strains were associated with higher incidence of drug resistance, the odds ratio was 2.22 and 3.32, respectively. Protease inhibitor (PI) resistance mutations, nucleoside reverse transcriptase inhibitor (NRTI) and non-nucleoside reverse transcriptase inhibitor (NNRTI) were found in 3.80%, 33.16% and 53.37% of patients, respectively. 31.95% of patients harbored NRTI and NNRTI resistance mutations simultaneously. M184V/I and K103N/Q were the highest frequency of NRTI and NNRTI resistance mutation, the prevalence of M184V/I and K103N/Q were 28.15% and 22.28%, respectively. Conclusion: The status of HIV-1 drug resistance mutations are complex and diverse among patients experiencing failure of ART in Jiangsu. Patients with lower baseline CD4(+)T cell count, longer treatment time and HIV-1 CRF01_AE and B strains infection were associated with higher incidence of drug resistance mutation.


Assuntos
Farmacorresistência Viral/genética , Infecções por HIV/tratamento farmacológico , Inibidores da Transcriptase Reversa/uso terapêutico , Síndrome da Imunodeficiência Adquirida , Adulto , China , Genes pol , HIV-1 , Humanos , Masculino , Mutação , Prevalência , Inibidores de Proteases
20.
Zhonghua Yu Fang Yi Xue Za Zhi ; 51(11): 1053-1056, 2017 Nov 06.
Artigo em Chinês | MEDLINE | ID: mdl-29136756

RESUMO

At present, China's AIDS testing increased rapidly, but there are still many people living with HIV do not recognize their status, thus postponing the antiviral treatment time. HIV self-testing (HST) is an effective method to expand the testing, not only simple operation, easy to get a result, effectively protect the detection privacy, expand the selection of testers, suit to the entire population, but also the premise and basis of other AIDS comprehensive prevention measures, all over the world are promoting it. Because the HST has controversies in the window period, price and before and after controversial, and our country is in the initial stage of HST, so it is not to develop related policies, but more and more countries are in accordance with their own situations are modified or developed to allow to use rapid detection of AIDS policy to regulate the field. This paper analyzed and summarized the advantage and influence factors of HST promotion, HST believes that in the long term, the advantages outweigh the disadvantages, we need to formulate relevant policies, and improve the sensitivity of the kit, shorten the window period of time, production and promotion of operation standard of video, specification and testing the operating practices, preventing and reporting the possible social harm, investigation and understanding of the needs of the people of the crowd, to maximize the advantages of HST, find more infection, so as to curb the epidemic of AIDS.


Assuntos
Infecções por HIV/diagnóstico , Autocuidado , Síndrome da Imunodeficiência Adquirida , China , Humanos , Programas de Rastreamento
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