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1.
Sci Total Environ ; 923: 170901, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38401722

RESUMO

Environmental and soil pollution increase the likelihood of human exposure to toxic metals. Therefore, there is a need for new methods and substances to protect individuals against the harmful effects caused by toxic metals. The study is the first to aim at determining the protective effect of cannabidiol (CBD) against oxidative stress and inflammation induced by toxic metal exposure in Transformed Human Liver Epithelial-2 (THLE-2) cell lines representing healthy liver cells. The IC50 value was determined by exposing THLE-2 human liver healthy cell line to different molarities of lead (Pb) using the XTT kit. The protective efficacy of CBD was assessed by adding 5 µM CBD in addition to the Pb doses determined at IC50 levels to the Pb groups created in cell lines. The levels of GSH, MDA, MPO, CAT, TNF-α, IL-1ß, and IL-6 in cell lines were determined using ELISA kits. The inhibition of toxic metal entry into the cells by CBD was assessed through ICP-MS analysis. The IC50 value for Pb was determined as 10 µM in 2D cell lines and 25 µM in 3D cell lines. It was observed that the application of 5 µM concentration of CBD, along with the determined IC50 doses for Pb, increased the cell proliferation rate. Furthermore, the decrease in GSH and CAT levels and the increase in MDA, MPO, TNF-α, IL-1ß, and IL-6 levels observed in cell lines treated only with Pb were reversed with the application of CBD. The ICP-MS analysis revealed that CBD reduced the cellular uptake of Pb. The reversal of oxidative stress and inflammation induced by Pb, the increase in cell proliferation, and the reduction in the cellular uptake of toxic metals by CBD can be considered as strong evidence for the protective use of CBD in Pb exposures.


Assuntos
Canabidiol , Humanos , Canabidiol/toxicidade , Fator de Necrose Tumoral alfa , Interleucina-6 , Chumbo/toxicidade , Fígado , Inflamação/induzido quimicamente , Linhagem Celular
2.
Artigo em Inglês | MEDLINE | ID: mdl-38194107

RESUMO

Acetaminophen is widely used among humans as an antipyretic and analgesic. In this study, the protective effect of losartan in hepatotoxicity and nephrotoxicity induced by acetaminophen in mice was investigated owing to its anti-inflammatory and antioxidant effects. An injection of a single dose of 500 mg/kg (i.p.) acetaminophen was administered to induce hepatotoxicity and nephrotoxicity in Groups VI-X. Losartan at doses of 1 mg/kg (Group VII), 3 mg/kg (Group VIII), and 10 mg/kg (Groups III, V, IX, and X) was injected intraperitoneally twice, at 1 and 12 h after the acetaminophen injection. Additionally, a 4 mg/kg dose of GW9662 (peroxisome proliferator-activated receptor gamma (PPAR-γ) antagonist) was injected intraperitoneally 30 min before the losartan injections in Groups V and X. At the end of 24 h, the mice were euthanized, and blood, liver, and kidney tissue samples were collected. Levels of AST, ALT, creatinine, and oxidative stress markers including TBARS, SOD, CAT, GPx, TAS, TOS, GSH, and GSSG, along with pro-inflammatory cytokines IL-1ß, IL-6, IL-8, IL-10, IL-17, and TNF-α, were measured using ELISA kits. Additionally, a histological evaluation of the tissue samples was performed. Acetaminophen causes increases in the levels of AST, ALT, creatinine, TBARS, TOS, GSSG, IL-1ß, IL-6, IL-8, IL-10, IL-17, and TNF-α in serum, liver, and kidney tissue. Meanwhile, it led to a decrease in the levels of SOD, CAT, GPx, TAS, and GSH. Losartan injection reversed oxidative and inflammatory damage induced by acetaminophen. Histopathological changes in liver and kidney tissue were alleviated by losartan. The substance GW9662 increased the protective effect of losartan. In light of all the data obtained from our study, it can be said that losartan has a protective effect on liver and kidney damage induced by acetaminophen due to its antioxidant and anti-inflammatory effects. In terms of the study, losartan was found to be an alternative substance that could protect people from the harmful effects of acetaminophen.

3.
J Opt Soc Am A Opt Image Sci Vis ; 40(5): 824-832, 2023 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-37133179

RESUMO

A class of electromagnetic random sources with a multi-Gaussian functional form in the spectral density and in the correlations part of the cross-spectral density matrix is introduced based on the genuine cross-spectral density-matrix theory. The analytic propagation formulas of the cross-spectral density matrix of such beams propagating in free space are derived by use of Collins' diffraction integral. With the help of analytic formulas, the evolution of statistical characteristics, i.e., the spectral density, the spectral degree of polarization, and the spectral degree of coherence for such beams in free space are analyzed numerically. Employing the multi-Gaussian functional form in the cross-spectral density matrix introduces one more freedom in the modeling of Gaussian Schell-model sources.

4.
Autism Res ; 14(10): 2078-2084, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34291889

RESUMO

Several studies demonstrated biological effects of cortisol, brain-derived neurotrophic factor (BDNF) and tissue plasminogen activator (tPA) on human metabolism and central nervous system. Our study investigated the serum levels of tPA along with BDNF and cortisol in children with autism spectrum disorder (ASD). Thirty three male children with ASD ranging in age from 2 to 15 years were selected for the study group and 27 age-matched healthy male children were selected for the control group. The ASD severity was determined by the score on the Autism Behavior Checklist (ABC). The mean cortisol levels for the study group and the control group were 79.1 ± 30.2 ng/ml and 60.0 ± 25.1 ng/ml, respectively. The mean BDNF levels for the study group and the control group were 5.9 ± 2.8 ng/ml and 3.7 ± 1.8 ng/ml, respectively. The mean tPA levels for the study group and the control group were 32.9 ± 18.5 ng/ml and 25.5 ± 15.1 ng/ml, respectively. Cortisol, BDNF and tPA levels were significantly higher in the study group compared to the control group (p < 0.001). There was no statistically significant effect in terms of age, ABC total and subscale scores on serum cortisol, BDNF and tPA levels in the study group (p > 0.05). It may be suggested that elevations may indicate a role in the pathogenesis of ASD or it may be the case that ASD may alter the levels or pathways of these metabolic factors. LAY SUMMARY: The underlying mechanism or a specific metabolic target relevant to autism spectrum disorder (ASD) has not yet been identified. Cortisol, brain-derived neurotrophic factor (BDNF) and tissue plasminogen activator (tPA) have biological effects on neuroplasticity but little is known about the role of cortisol and tPA-BDNF pathway in ASD. In the present study focused on male children with ASD, we have found higher blood levels of cortisol, BDNF and tPA than their healthy peers. This is the first clinical study to evaluate the serum tPA levels along with BDNF and cortisol in ASD. The results suggest that several neurotrophic and other related markers should be born in mind while examining children with ASD.


Assuntos
Transtorno do Espectro Autista , Ativador de Plasminogênio Tecidual , Adolescente , Biomarcadores , Encéfalo , Fator Neurotrófico Derivado do Encéfalo , Criança , Pré-Escolar , Humanos , Hidrocortisona , Masculino
5.
Acta Trop ; 218: 105888, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33713626

RESUMO

In this study, we characterized a collection of clinical samples obtained from Syrian and Turkish patients with cutaneous leishmaniasis using internal transcribed spacer 1 (ITS1) sequences. All obtained sequences belonged to Leishmania tropica. Combining them with those available from GenBank allowed us performing a broad-scale analysis of genetic diversity for this species. We demonstrated that L. tropica has a complex phylogeographic pattern with some haplotypes being widespread across endemic countries and others restricted to particular regions. We hypothesize that at least some of them may be associated with alternative vectors or animal reservoirs.


Assuntos
Variação Genética , Leishmania tropica/genética , Animais , Vetores de Doenças , Haplótipos , Humanos , Leishmaniose Cutânea/epidemiologia , Leishmaniose Cutânea/transmissão , Masculino , Filogeografia
6.
Saudi Med J ; 41(5): 473-478, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32373913

RESUMO

OBJECTIVES: To investigate whether confusion, respiratory rate, shock index-age ≥65 years (CRSI-65) score, consisting of basic physiological parameters, can be used for severity prediction in patients with community-acquired pneumonia. METHODS: This is a prospective cohort and single-center study conducted in Bolu Abant Izzet Baysal University Hospital, Bolu, Turkey between January 2018 and June 2018. The study investigated CRSI-65 score in predicting 4-week mortality and the need for intensive care for patients with community-acquired pneumonia. RESULTS: A total of 58 patients with community-acquired pneumonia admitted to the emergency department were included in this study. Of the patients, 62.1% were males (n=36), and the mean age of the patients was 72.87 ± 12.30 years. After 4 weeks of follow-up, CURB-65 and CRSI-65 scores showed similar results in predicting mortality with respect to specificity, sensitivity, and positive and negative predictive values. Area under the receiver operating characteristic curve was 0.926 for the CURB-65 (95% confidence interval [CI] 0.853-0.999) and 0.954 for the CRSI-65 (95% CI 0.899-0.999). CONCLUSION: Similar to the CURB-65 score, the CRSI-65 score appears to be useful in predicting 4-week mortality. The evaluation of CRSI-65 score can be used in emergency department triage, primary care, and non-hospital settings.


Assuntos
Infecções Comunitárias Adquiridas/diagnóstico , Infecções Comunitárias Adquiridas/mortalidade , Confusão , Serviço Hospitalar de Emergência , Pneumonia/diagnóstico , Pneumonia/mortalidade , Taxa Respiratória , Triagem/métodos , Idoso , Estudos de Coortes , Infecções Comunitárias Adquiridas/fisiopatologia , Feminino , Previsões , Humanos , Masculino , Pneumonia/fisiopatologia , Prognóstico , Estudos Prospectivos , Curva ROC , Projetos de Pesquisa , Índice de Gravidade de Doença , Choque , Fatores de Tempo , Turquia
7.
J Opt Soc Am A Opt Image Sci Vis ; 35(9): 1604-1611, 2018 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-30183017

RESUMO

We derive analytical expressions for the cross-spectral density matrix of polychromatic electromagnetic multi-Gaussian Schell-model (EMGSM) beam transmission through a gradient-index fiber. The space-spectrum evolution properties for the spectral density, spectral shift, degree of polarization, and electromagnetic coherence state of a polychromatic EMGSM beam with Lorentzian line type spectrum and central wavelength λ0=1550 nm propagation in a silica-clad germania core inhomogeneous graded-index fiber are studied in detail. We show that these statistical properties exhibit periodicity in the fiber, caused by the focusing property of square-law media, which can be reminiscent of the self-imaging effect of optical fields. The effects of the nonconventional correlation functions of the polychromatic EMGSM beam on the transmission properties are also investigated.

9.
Turkiye Parazitol Derg ; 42(2): 134-137, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29780005

RESUMO

OBJECTIVE: The present study aimed to evaluate scabies and pediculosis cases in the city of Kayseri and to contribute to the epidemiological data in Turkey. METHODS: Data for the present study were obtained from the Kayseri Directorate of Public Health. The distribution of lice and scabies according to age, sex, and years was evaluated retrospectively. RESULTS: A total of 3908 scabies and 4762 pediculosis cases have been reported from the central and peripheral districts of Kayseri between January 2006 and April 2017. It was observed that the number of female cases is higher in both infestations. When positive cases were evaluated according to age, it appears that scabies cases in the 25-44 age group and pediculosis cases in the 10-14 age group are higher. At the same time, in the first 4 months of 2017, it was observed that the number of cases in both infestations was two times higher than that in the previous year. CONCLUSION: We believe that scabies and pediculosis infestations are still a major public health concern in Turkey and its city.


Assuntos
Infestações por Piolhos/epidemiologia , Pediculus , Escabiose/epidemiologia , Dermatoses do Couro Cabeludo/epidemiologia , Adolescente , Adulto , Fatores Etários , Idoso , Animais , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Infestações por Piolhos/etiologia , Masculino , Pessoa de Meia-Idade , Saúde Pública , Estudos Retrospectivos , Escabiose/etiologia , Dermatoses do Couro Cabeludo/etiologia , Fatores Sexuais , Turquia/epidemiologia , Adulto Jovem
10.
Balkan Med J ; 34(1): 85-87, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-28251031

RESUMO

BACKGROUND: Priapism is a potentially painful and prolonged erection that occurs in the absence of any stimulation. Olanzapine has been reported to induce priapism in several adult cases with schizophrenia and/or mood disorders but very rarely reported in children. CASE REPORT: 9-year-old male with Asperger's Syndrome (AS) referred to our clinic with the complaints of inattention, hyperactivity and impulsivity. He was diagnosed with attention deficit hyperactivity disorder (ADHD) and given methylphenidate treatment which ameliorated his ADHD symptoms. He started to have severe loss of appetite after methylphenidate treatment so olanzapine 2.5 mg/day was added to cope with severe inappetence. However he experienced priapism after olanzapine and priapism resolved after ceasing the drug. His mother restarted olanzapine because he benefited from olanzapine. But the same episodes occurred soon after olanzapine again and his mother had to stop the medication. CONCLUSION: Because atypical antipsychotics are now widely used in children, unusual side effects such as priapism should be taken into consideration for the differential diagnosis.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Benzodiazepinas/efeitos adversos , Priapismo/etiologia , Antipsicóticos/efeitos adversos , Antipsicóticos/uso terapêutico , Síndrome de Asperger/complicações , Síndrome de Asperger/tratamento farmacológico , Benzodiazepinas/uso terapêutico , Criança , Humanos , Masculino , Olanzapina
13.
Artigo em Inglês | MEDLINE | ID: mdl-27402679

RESUMO

The Functional Annotation of the Mammalian Genome project (FANTOM5) mapped transcription start sites (TSSs) and measured their activities in a diverse range of biological samples. The FANTOM5 project generated a large data set; including detailed information about the profiled samples, the uncovered TSSs at high base-pair resolution on the genome, their transcriptional initiation activities, and further information of transcriptional regulation. Data sets to explore transcriptome in individual cellular states encoded in the mammalian genomes have been enriched by a series of additional analysis, based on the raw experimental data, along with the progress of the research activities. To make the heterogeneous data set accessible and useful for investigators, we developed a web-based database called Semantic catalog of Samples, Transcription initiation And Regulators (SSTAR). SSTAR utilizes the open source wiki software MediaWiki along with the Semantic MediaWiki (SMW) extension, which provides flexibility to model, store, and display a series of data sets produced during the course of the FANTOM5 project. Our use of SMW demonstrates the utility of the framework for dissemination of large-scale analysis results. SSTAR is a case study in handling biological data generated from a large-scale research project in terms of maintenance and growth alongside research activities.Database URL: http://fantom.gsc.riken.jp/5/sstar/.


Assuntos
Bases de Dados de Ácidos Nucleicos , Genoma Humano , Software , Sítio de Iniciação de Transcrição , Transcriptoma , Animais , Humanos , Semântica
15.
Turkiye Parazitol Derg ; 39(2): 86-9, 2015 Jun.
Artigo em Turco | MEDLINE | ID: mdl-26081878

RESUMO

OBJECTIVE: Malaria is the primary parasitic cause of morbidity and mortality in the world. As a result of the expansion of international travel in recent years, imported malaria cases especially are increasing in our country. Likewise, while there were more domestic cases earlier in Kayseri, more imported cases were seen in recent years. In our study, the epidemiology of malaria cases between the years of 2001-2013 is intended to be done with the data obtained from the Provincial Health Directorate. METHODS: The data was performed retrospectively. RESULTS: Considering the last 12 years of data; a total of 34,459 blood samples were analyzed and 47 of these cases were found to be malaria, 21 cases were domestic and others were imported cases of malaria. P. vivax was detected in all domestic cases. While one of the imported cases have been identified as P. malariae, others were P. falciparum. CONCLUSION: We believe that our study of the epidemiological data would be beneficial for taking preventive cautions and fight against malaria.


Assuntos
Malária Falciparum/epidemiologia , Malária Vivax/epidemiologia , Adolescente , Adulto , Idoso , Pré-Escolar , Feminino , Humanos , Malária/sangue , Malária/epidemiologia , Malária Falciparum/sangue , Malária Vivax/sangue , Masculino , Pessoa de Meia-Idade , Plasmodium malariae/isolamento & purificação , Estudos Retrospectivos , Viagem , Turquia/epidemiologia , Adulto Jovem
16.
Genome Biol ; 16: 22, 2015 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-25723102

RESUMO

The FANTOM5 project investigates transcription initiation activities in more than 1,000 human and mouse primary cells, cell lines and tissues using CAGE. Based on manual curation of sample information and development of an ontology for sample classification, we assemble the resulting data into a centralized data resource (http://fantom.gsc.riken.jp/5/). This resource contains web-based tools and data-access points for the research community to search and extract data related to samples, genes, promoter activities, transcription factors and enhancers across the FANTOM5 atlas.


Assuntos
Genômica/métodos , Regiões Promotoras Genéticas , Software , Iniciação da Transcrição Genética , Animais , Biologia Computacional/métodos , Bases de Dados Genéticas , Conjuntos de Dados como Assunto , Perfilação da Expressão Gênica , Humanos , Camundongos , Transcriptoma , Interface Usuário-Computador
17.
Noro Psikiyatr Ars ; 52(4): 393-399, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28360746

RESUMO

INTRODUCTION: The purpose of this study was to investigate the psychiatric consequences of sexual abuse and its associated factors in children and adolescents referred to our child and adolescent psychiatry clinic from official medico-legal units. METHODS: All victims of sexual abuse (n=590) aged 1-18 (mean: 13.56±3.38) referred from forensic units to Ondokuz Mayis University Child and Adolescent Psychiatry Clinic over a period of 2 years [boys: 83 (14.1%); girls: 507 (85.9%)] were included. Child and adolescent psychiatry and forensic medicine specialists evaluated all the cases. The Wechsler Intelligence Scale for Children-Revised Form (WISC-R) and the Schedule for Affective Disorders and Schizophrenia for School Age Children-Present and Lifetime Version-Turkish Version (K-SADS-PL-T) were applied. RESULTS: Abuse-related psychiatric diagnoses (of which 45.9% were major depressive disorder and 31.7% were post-traumatic stress disorder cases) were made in 75.2% of the cases. In 80.3% of the cases, the perpetrators were known to their victims [incest, n=91 (15.1%)], and intercourse took place in 48.8%. Although gender and age were not significantly associated with the appearance of any psychiatric disorders, severity of abuse (e.g., intercourse; p=.006), additional physical assault (p<.001), and incest (p<.001) had a significant correlation with psychiatric disorders. To explore the predictive value of multiple factors in the appearance of any sexual assault-related psychiatric disorder, a logistic regression model was used to determine the best linear combination of age, gender, abuse severity, incest, involvement of any other victim, additional physical assault, and length of time from first abuse to first psychiatric evaluation. This combination of variables (occurrence of incest, additional physical assault, and a long duration from first abuse to first psychiatric evaluation) significantly predicted the appearance of a psychiatric disorder of any kind (χ2=55.42; df=7; n=522; p<.001). CONCLUSION: Our findings reveal that the occurrence of incest, additional physical assault, and a long duration from first abuse to first psychiatric evaluation predict higher rates of sexual abuse-related psychiatric disorders.

18.
J Opt Soc Am A Opt Image Sci Vis ; 31(8): 1782-7, 2014 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-25121535

RESUMO

We introduce analytical models for scattering potentials of particles that have ellipsoid-, cylinder-, and parallelepiped-like shapes and adjustable edge sharpness with the help of the three-dimensional versions of the multi-Gaussian functions. The far fields produced upon scattering from such potentials are examined in detail and are shown to qualitatively and quantitatively depend on the scatterer's symmetry type as well as its orientation and edge sharpness.


Assuntos
Modelos Teóricos , Fotometria/métodos , Refratometria/métodos , Simulação por Computador , Luz , Tamanho da Partícula , Espalhamento de Radiação , Propriedades de Superfície
19.
Int J Psychiatry Clin Pract ; 18(4): 280-7, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24994482

RESUMO

OBJECTIVES: We aimed to explore whether the use of methylphenidate relates leptin, ghrelin, adiponectin, and brain-derived neurotrophic factor (BDNF). In addition, the relationship between methylphenidate-related weight loss in attention deficit hyperactivity disorder (ADHD) patients and these biomolecules were evaluated. METHODS: Thirty ADHD patients receiving methylphenidate and 20 healthy controls were included. Leptin, ghrelin, adiponectin, and BDNF levels were measured at baseline and after two-month treatment in both groups. RESULTS: At baseline, leptin, ghrelin, adiponectin, and BDNF levels were similar in the ADHD and control groups. The most common adverse events occurring in the ADHD group after a 2-month treatment period included loss of appetite (70%) and weight loss (66.7%). A significant difference was found in body weight, BMI, and CGI scores of the ADHD patients after the treatment. While post-treatment ghrelin and adiponectin levels were significantly higher in the ADHD group, BDNF level was significantly lower. Post-treatment decrease in leptin levels was not significant. CONCLUSIONS: Leptin and BDNF were not associated with poor appetite and/or weight loss due to methylphenidate treatment. However, ghrelin and adiponectin might be biomolecules that play a role in underlying neurobiological mechanisms of methylphenidate-related appetite or weight loss.


Assuntos
Adiponectina/sangue , Apetite/efeitos dos fármacos , Transtorno do Deficit de Atenção com Hiperatividade/sangue , Fator Neurotrófico Derivado do Encéfalo/sangue , Grelina/sangue , Leptina/sangue , Metilfenidato/farmacologia , Adolescente , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/administração & dosagem , Estimulantes do Sistema Nervoso Central/farmacologia , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Preparações de Ação Retardada/farmacologia , Preparações de Ação Retardada/uso terapêutico , Feminino , Humanos , Masculino , Metilfenidato/administração & dosagem , Metilfenidato/uso terapêutico
20.
J Opt Soc Am A Opt Image Sci Vis ; 29(10): 2159-64, 2012 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-23201664

RESUMO

In a recent publication [Opt. Lett.37, 2970 (2012)10.1364/OL.37.002970], a novel class of planar stochastic sources, generating far fields with flat intensity profiles, was introduced. In this paper we examine the behavior of the spectral density and the state of coherence of beamlike fields generated by such sources on propagation in free space and linear isotropic random media. In particular, we find that at sufficiently large distances from the source, the medium destroys the flat intensity profile, even if it remains such for intermediate distances from the source.

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