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1.
Mikrochim Acta ; 191(6): 322, 2024 05 10.
Artigo em Inglês | MEDLINE | ID: mdl-38730044

RESUMO

The first electrochemical sensor application in the literature is described for the sensitive and selective determination of the selective Janus kinase (JAK)-1 inhibitor abrocitinib (ABR). ABR is approved by the U.S. Food and Drug Administration (FDA) for the treatment of atopic dermatitis. The molecularly imprinted polymer (MIP)-based sensor was designed to incorporate zinc nanoflower (ZnNFs)-graphene oxide (GO) conjugate (ZnNFs@GO), synthesized from the root methanolic extract (RME) of the species Alkanna cappadocica Boiss. et Bal. to improve the porosity and effective surface area of the glassy carbon electrode (GCE). Furthermore, the MIP structure was prepared using ABR as a template molecule, 4-aminobenzoic acid (4-ABA) as a functional monomer, and other additional components. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR) were used to characterize the surface and structure of the synthesized nanomaterial and MIP-based surface. Among the electrochemical methods, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were preferred for detailed electrochemical characterization, and differential pulse voltammetry (DPV) was preferred for all other electrochemical measurements using 5.0 mM [Fe(CN)6]3-/4- solution as the redox probe. The MIP-based sensor, which was the result of a detailed optimization phase, gave a linear response in the 1.0 × 10-13 - 1.0 × 10-12 M range in standard solution and serum sample. The obtained limit of detection (LOD) and limit of quantification (LOQ) values and recovery studies demonstrated the sensitivity, accuracy, and applicability of the sensor. Selectivity, the most important feature of the MIP-based sensor, was verified by imprinting factor calculations using ibrutinib, ruxolitinib, tofacitinib, zonisamide, and acetazolamide.


Assuntos
Técnicas Eletroquímicas , Limite de Detecção , Polímeros Molecularmente Impressos , Zinco , Polímeros Molecularmente Impressos/química , Técnicas Eletroquímicas/métodos , Técnicas Eletroquímicas/instrumentação , Zinco/química , Grafite/química , Humanos , Aminoimidazol Carboxamida/análogos & derivados , Aminoimidazol Carboxamida/análise , Aminoimidazol Carboxamida/sangue , Aminoimidazol Carboxamida/química , Nanoestruturas/química , Eletrodos
2.
Int Arch Allergy Immunol ; 184(4): 370-375, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36623499

RESUMO

BACKGROUND AND OBJECTIVE: Pompe disease (PD) is an inherited lysosomal storage disease that progresses with glycogen accumulation in many tissues, due to the deficiency of the acid-alpha glucosidase enzyme. Recombinant alglucosidase alfa (rhGAA) is the only disease-specific treatment option, in the form of enzyme replacement therapy (ERT). Anaphylaxis can develop with rhGAA. There is no study evaluating anaphylaxis and its management in PD in the long term. We aimed to evaluate the development of anaphylaxis and rapid drug desensitization (RDD) with rhGAA in children with PD. MATERIALS AND METHODS: All children diagnosed and followed up in our institution with PD over 12 years between January 2009 and September 2021 were evaluated for development of anaphylaxis and RDD with rhGAA from medical records. RESULTS: Fourteen patients, 64% of whom were female and diagnosed with PD (1 juvenile, 13 infantile types) during the study period included in the study. The median age at diagnosis was 3.2 months (1-40 months). The median follow-up time of the patients was 20 months (1-129 months). Thirteen patients were given rhGAA, one died before ERT. Four (30.8%) patients developed moderate to severe anaphylaxis, and RDD was applied with rhGAA. A total of 390 RDDs have been performed so far without any serious breakthrough reactions during all RDDs. CONCLUSIONS: Anaphylaxis with rhGAA is not rare and RDD with rhGAA is safe and effective in the long term.


Assuntos
Anafilaxia , Doença de Depósito de Glicogênio Tipo II , Criança , Humanos , Feminino , Lactente , Masculino , alfa-Glucosidases/uso terapêutico , Doença de Depósito de Glicogênio Tipo II/complicações , Doença de Depósito de Glicogênio Tipo II/tratamento farmacológico , Anafilaxia/terapia , Anafilaxia/tratamento farmacológico , Terapia de Reposição de Enzimas
3.
J Immunol ; 205(3): 801-810, 2020 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-32641387

RESUMO

NK cells provide immune surveillance and host protection against viruses and tumors through their cytotoxic effector function. Cytoskeletal rearrangement is necessary for NK cell lytic granule trafficking and immune synapse formation to trigger apoptosis of targeted cells. LIM kinase (LIMK) regulates F-actin remodeling by phosphorylating cofilin to inhibit actin severing and depolymerization. In this study, in human NK cells, the glucocorticoid dexamethasone downregulated LIMK expression, F-actin accumulation at the immune synapse, lytic granule trafficking, and cytotoxicity. In contrast, the specialized proresolving mediator lipoxin A4 promoted NK cell LIMK expression, lytic granule polarization to the immune synapse and cytotoxicity. Using a LIMK inhibitor, we show that LIMK activity is necessary for NK cell cytotoxicity, including lipoxin A4's proresolving actions. Together, our findings identify LIMK as an important control mechanism for NK cell cytoskeletal rearrangement that is differentially regulated by glucocorticoids and specialized proresolving mediators to influence NK cell cytotoxicity.


Assuntos
Citoesqueleto/imunologia , Células Matadoras Naturais/imunologia , Quinases Lim/imunologia , Dexametasona/farmacologia , Humanos , Lipoxinas/antagonistas & inibidores , Lipoxinas/imunologia
4.
Allergy ; 76(6): 1661-1678, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33128813

RESUMO

In past 10 years, microRNAs (miRNAs) have gained scientific attention due to their importance in the pathophysiology of allergic diseases and their potential as biomarkers in liquid biopsies. They act as master post-transcriptional regulators that control most cellular processes. As one miRNA can target several mRNAs, often within the same pathway, dysregulated expression of miRNAs may alter particular cellular responses and contribute, or lead, to the development of various diseases. In this review, we give an overview of the current research on miRNAs in allergic diseases, including atopic dermatitis, allergic rhinitis, and asthma. Specifically, we discuss how individual miRNAs function in the regulation of immune responses in epithelial cells and specialized immune cells in response to different environmental factors and respiratory viruses. In addition, we review insights obtained from experiments with murine models of allergic airway and skin inflammation and offer an overview of studies focusing on miRNA discovery using profiling techniques and bioinformatic modeling of the network effect of multiple miRNAs. In conclusion, we highlight the importance of research into miRNA function in allergy and asthma to improve our knowledge of the molecular mechanisms involved in the pathogenesis of this heterogeneous group of diseases.


Assuntos
Asma , Dermatite Atópica , MicroRNAs , Rinite Alérgica , Animais , Asma/genética , Camundongos , MicroRNAs/genética , Sistema Respiratório , Rinite Alérgica/genética
5.
Pediatr Emerg Care ; 37(8): e491-e494, 2021 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-30624419

RESUMO

ABSTRACT: In the presence of an unhealed granulation tissue-like wound, a possibility of abuse and neglect along with a foreign body should come to mind. However, it may be difficult to recognize a foreign body in patients with atypical clinical presentations. We demonstrated delayed diagnosis of a rubber band embedded into subcutaneous tissue in a 2½-year-old girl who presented with a circumferential scar with 2 granulation tissue-like wounds on her neck due to a foreign body reaction developed over years. With this rare case presentation, we remind the possibility of abuse/neglect along with foreign bodies in neck lesions of children.


Assuntos
Corpos Estranhos , Adulto , Dor no Peito , Criança , Pré-Escolar , Feminino , Corpos Estranhos/diagnóstico , Corpos Estranhos/diagnóstico por imagem , Reação a Corpo Estranho/diagnóstico , Reação a Corpo Estranho/etiologia , Humanos , Adulto Jovem
6.
Molecules ; 25(7)2020 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-32235622

RESUMO

Lactuca L. species belong to the Asteraceae family and these plants are traditionally used for therapeutic purposes around the world. The dried milky latex of L. serriola is known as "lettuce oil" and is used as a sedative in Turkey. This study aimed to evaluate the sedative effects and analyze the chemical compositions of latexes obtained from some Lactuca species growing in Turkey. The sedative effects were evaluated through various behavioral tests on mice. For this purpose, latexes were obtained from L. glareosa Boiss., L. viminea (L.) J. Presl and C. P, L. mulgedioides (Vis and Pancic) Boiss. and Kotschy ex. Boiss., L. saligna L., and L. serriola L. The latex from L. saligna showed the highest sedative effects, whilst L. serriola and L. viminea latexes also displayed significant sedative effects compared to the control group at a dose of 100 mg/kg. However, the latexes from L. glareosa and L. mulqedioides did not exhibit any sedative effects on mice. Characteristic sesquiterpene lactones (lactucin, lactucopicrin, 11,13ß-dihydrolactucin, and 11,13ß-dihydrolactucopicrin) were determined qualitatively and quantitatively by high-performance liquid chromatography (HPLC). Lactucin was identified as the main component.


Assuntos
Hipnóticos e Sedativos , Lactuca/química , Látex/química , Animais , Hipnóticos e Sedativos/química , Hipnóticos e Sedativos/isolamento & purificação , Hipnóticos e Sedativos/farmacologia , Lactuca/crescimento & desenvolvimento , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Turquia
7.
J Adv Nurs ; 75(9): 1976-1986, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31087581

RESUMO

AIM: To determine the experiences of women with physical disabilities regarding the barriers to their participation in breast and cervical cancer screening. DESIGN: Qualitative descriptive study. METHOD: Sixteen women who use wheelchairs were recruited. Data were collected via semi-structured face-to-face interviews between January - March 2017. Interviews were transcribed and data were analysed thematically. RESULTS: Three main themes were uncovered: (a) Personal factors; such as lack of knowledge, fear and embarrassment, feeling anxious about the examination process and dependency on others; (b) Environmental and structural factors; and (c) expectations and suggestions of women with disabilities to enable their participation in screening. CONCLUSION: The participation rate of women with physical disabilities in screening is low. The participation of women with disabilities in breast and cervical cancer screening may increase if physical barriers to accessing healthcare services are removed, appropriate and less time-consuming examination conditions are met, and healthcare personnel are informed about the needs of persons with disabilities. IMPACT: Knowing the barriers for women with physical disabilities to participate in cancer screening can help health professionals develop new procedures to increase their participation to cancer screening. Women with physical disabilities encountered various barriers such as; lack of knowledge, fear and embarrassment, feeling anxious about the examination process and dependency on others, access to the healthcare services, environmental, physical limitations, and inadequate knowledge of healthcare professional about their disability. This study will guide healthcare professionals in developing strategies to increase the participation of women with physical disabilities in screening.


Assuntos
Neoplasias da Mama/diagnóstico , Pessoas com Deficiência/psicologia , Detecção Precoce de Câncer/métodos , Acessibilidade aos Serviços de Saúde , Programas de Rastreamento/métodos , Neoplasias do Colo do Útero/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Pessoa de Meia-Idade , Pesquisa Qualitativa
8.
Sex Health ; 15(5): 413-419, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30292249

RESUMO

Background The aim of this methodological study was to assess the reliability and validity of the Sexual Quality of Life - Male (SQoL-M) questionnaire translated and adapted to measure the sexual quality of life of men in Turkey and Northern Cyprus. METHODS: To assess the reliability and validity of the Turkish version of the SQoL-M questionnaire, in January and February 2017 we formed a sample of 128 men from Ankara, Turkey, and Girne, Northern Cyprus, to complete the questionnaire. Two weeks later, 65 of these men completed the questionnaire during a retest. Factor analysis was conducted to evaluate the questionnaire's factor structure, internal consistency and test-retest reliability analyses were used to assess reliability and Pearson's correlation coefficient was used to measure criterion-related validity. RESULTS: Cronbach's α for the Turkish version of the SQoL-M questionnaire was 0.91, with corrected item-total score correlations ranging from 0.432 to 0.819. The test-retest correlation, calculated to compare scale scores of both groups of participants, was 0.83 (P<0.001). We also observed a statistically significant relationship between the Turkish version of the SQoL-M questionnaire and the Arizona Sexual Experience scale. CONCLUSIONS: The Turkish version of the SQoL-M questionnaire is a valid, reliable instrument for evaluating the sexual quality of life of men in Turkey and Northern Cyprus.


Assuntos
Qualidade de Vida , Comportamento Sexual , Inquéritos e Questionários , Adulto , Chipre , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Tradução , Turquia
9.
Pediatr Emerg Care ; 34(3): 169-173, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27050739

RESUMO

AIM: The aim of the study was define the normal values of tympanic and axillary body temperature in healthy children. METHODS: This observational cross-sectional study was performed in healthy children aged 0 to 17 years who visited the ambulatory general pediatric of Istanbul Medical Faculty. RESULTS: Of 1364 children, 651 (47.7%) were girls and 713 were boys, the mean (SD, range) age was 72.5 (53.6, 1-204) months. The mean (SD) axillary body temperature was 36.04°C (0.46°C; minimum, 35.0°C; maximum, 37.6°C). The 95th and 99th percentiles were 36.8°C and 37.0°C, respectively. The mean (SD) tympanic body temperature was 36.91°C (0.46°C; minimum, 35.15°C; maximum, 37.9°C). The 95th and 99th percentiles were 37.6°C and 37.8°C, respectively. There were statistically significant differences between sexes for only tympanic body temperatures. Both axillary and tympanic body temperatures were statistically higher in 0 to 2 months compared with other age groups. For this age group, the 99th percentile was 37.5°C for axillary and 37.85°C for tympanic temperature. CONCLUSIONS: Axillary and tympanic body temperatures should be considered as fever when they are more than 37.0°C and 37.8°C, respectively. For 0 to 2 months, fever is 37.5°C and 37.85°C in axillary and tympanic temperatures, respectively.


Assuntos
Temperatura Corporal/fisiologia , Febre/diagnóstico , Termômetros/estatística & dados numéricos , Adolescente , Axila/fisiologia , Criança , Pré-Escolar , Estudos Transversais , Orelha Média/fisiologia , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Valores de Referência , Turquia
10.
Hippocampus ; 27(8): 906-919, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28500650

RESUMO

Autism spectrum disorder (ASD) is a class of neurodevelopmental disorders characterized by persistent deficits in social communication/interaction, together with restricted/repetitive patterns of behavior. ASD is among the most heritable neuropsychiatric conditions, and while available evidence points to a complex set of genetic factors, the SHANK gene family has emerged as one of the most promising candidates. Here, we assessed ASD-related phenotypes with particular emphasis on social behavior and cognition in Shank1 mouse mutants in comparison to heterozygous and wildtype littermate controls across development in both sexes. While social approach behavior was evident in all experimental conditions and social recognition was only mildly affected by genotype, Shank1-/- null mutant mice were severely impaired in object recognition memory. This effect was particularly prominent in juveniles, not due to impairments in object discrimination, and replicated in independent mouse cohorts. At the neurobiological level, object recognition deficits were paralleled by increased brain-derived neurotrophic factor (BDNF) protein expression in the hippocampus of Shank1-/- mice; yet BDNF levels did not differ under baseline conditions. We therefore investigated changes in the epigenetic regulation of hippocampal BDNF expression and detected an enrichment of histone H3 acetylation at the Bdnf promoter1 in Shank1-/- mice, consistent with increased learning-associated BDNF. Together, our findings indicate that Shank1 deletions lead to an aberrant cognitive phenotype characterized by severe impairments in object recognition memory and increased hippocampal BDNF levels, possibly due to epigenetic modifications. This result supports the link between ASD and intellectual disability, and suggests epigenetic regulation as a potential therapeutic target.


Assuntos
Transtorno do Espectro Autista , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Transtornos Cognitivos/etiologia , Epigênese Genética/genética , Hipocampo/metabolismo , Proteínas do Tecido Nervoso/deficiência , Animais , Animais Recém-Nascidos , Transtorno do Espectro Autista/complicações , Transtorno do Espectro Autista/genética , Transtorno do Espectro Autista/metabolismo , Transtorno do Espectro Autista/patologia , Peso Corporal/genética , Transtornos Cognitivos/genética , Discriminação Psicológica/fisiologia , Modelos Animais de Doenças , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Proteínas do Tecido Nervoso/genética , Proteínas do Tecido Nervoso/metabolismo , Fenótipo , Reconhecimento Psicológico/fisiologia , Comportamento Social , Vocalização Animal/fisiologia
11.
Minerva Pediatr ; 69(3): 194-199, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26041000

RESUMO

BACKGROUND: The aim of this paper was to evaluate demographic and prognostic features of febrile seizures (FSs) in a tertiary center in Turkey. METHODS: A retrospective study of 632 children with FS was conducted from January 1995 to January 2002 in the pediatric neurology and general pediatrics departments of Istanbul University, Istanbul Medical School. Patients data was collected and eligible patients were included in the study. RESULTS: There were 386 male (61.1%) and 246 female (38.9%) patients, with a male-to-female ratio of 1.57. Twenty six (4.1%) patients had prenatal, 104 (16.5%) patients had perinatal-neonatal problems. Age at first seizure was 3-72 months with an average of 20.1 months. While 193 patients (30%) were admitted with two seizures, 246 (39%) were admitted with three or more. Out of 632 patients, 501 (79.2%) had recurrences. In an average of 5.8 years (4-8.8), 30 out of 632 patients (4.7%) were diagnosed with epilepsy. First degree relative with FS, age at first FS less than 18 months, height of peak temperature (<38.5 °C), less than 1 or 3 hours between onset of fever and seizure, complex first seizure, complex FS were all related to febrile seizure recurrence in a statistically significant way. Some risk factors for subsequent epilepsy development included complex FS and less than one hour of fever before FS. No patient with FS had died. CONCLUSIONS: Complex FS and less than 1 hour of fever before FS are common risk factors for both epilepsy and FS recurrence.


Assuntos
Epilepsia/epidemiologia , Saúde da Família , Convulsões Febris/epidemiologia , Idade de Início , Criança , Pré-Escolar , Epilepsia/etiologia , Feminino , Humanos , Lactente , Masculino , Prognóstico , Recidiva , Estudos Retrospectivos , Fatores de Risco , Convulsões Febris/complicações , Centros de Atenção Terciária , Fatores de Tempo , Turquia
12.
Mol Pharm ; 11(4): 1273-81, 2014 Apr 07.
Artigo em Inglês | MEDLINE | ID: mdl-24592902

RESUMO

Amphiphilic triblock copolymers represent a versatile delivery platform capable of co-delivery of nucleic acids, drugs, and/or dyes. Multifunctional cationic triblock copolymers based on poly(ethylene glycol), poly-ε-caprolactone, and polyethylene imine, designed for the delivery of siRNA, were evaluated in vitro and in vivo. Moreover, a nucleic acid-unpacking-sensitive imaging technique based on quantum dot-mediated fluorescence resonance energy transfer (QD-FRET) was established. Cell uptake in vitro was measured by flow cytometry, whereas transfection efficiencies of nanocarriers with different hydrophilic block lengths were determined in vitro and in vivo by quantitative real-time PCR. Furthermore, after the proof of concept was demonstrated by fluorescence spectroscopy/microscopy, a prototype FRET pair was established by co-loading QDs and fluorescently labeled siRNA. The hydrophobic copolymer mediated a 5-fold higher cellular uptake and good knockdown efficiency (61 ± 5% in vitro, 55 ± 18% in vivo) compared to its hydrophilic counterpart (13 ± 6% in vitro, 30 ± 17% in vivo), which exhibited poor performance. FRET was demonstrated by UV-induced emission of the acceptor dye. Upon complex dissociation, which was simulated by the addition of heparin, a dose-dependent decrease in FRET efficiency was observed. We believe that in vitro/in vivo correlation of the structure and function of polymeric nanocarriers as well as sensitive imaging functionality for mechanistic investigations are prerequisites for a more rational design of amphiphilic gene carriers.


Assuntos
Transferência Ressonante de Energia de Fluorescência , Técnicas de Transferência de Genes , Poliésteres/administração & dosagem , Polietilenoimina/análogos & derivados , Pontos Quânticos/administração & dosagem , RNA Interferente Pequeno/administração & dosagem , Animais , Camundongos , Camundongos Endogâmicos BALB C , Polietilenoimina/administração & dosagem
13.
J Pediatr Gastroenterol Nutr ; 59(1): 106-11, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24647335

RESUMO

BACKGROUND: The increasing incidence of obesity in children is a significant risk factor for nonalcoholic fatty liver disease and obesity-associated morbidity. Vitamin D has a major role in bone mineral metabolism and has antimicrobial, antioxidant properties. In this study we aimed to investigate the role of vitamin D in children with obesity with hepatosteatosis. METHODS: A total of 101 children with obesity were included in this study. Hepatosteatosis was diagnosed and graded using ultrasonography. Serum levels of 25-hydroxyvitamin D (25-(OH) vitamin D), calcium, phosphate, alkaline phosphatase, and parathormone were tested. Two-sided t test and Pearson χ tests were used for the relation between vitamin D and hepatosteatosis. RESULTS: In our study group, 45.5% were girls (n=46) and the mean age was 11.5 ± 2.8 years (range 3-17 years). Hepatosteatosis was identified in 58 children (57.4%). The diagnosis of grade 1 and grade 2 hepatosteatosis was made in 41 (40.6%) and 17 (16.8%) children, respectively. Median serum 25-(OH) vitamin D levels in children without hepatosteatosis was 16.4 ng/mL (interquartile range 12.4-24.8 ng/mL), whereas children with grade 1 and grade 2 hepatosteatosis had 25-(OH) vitamin D levels of 14.2 ng/mL (interquartile range 9.5-21.2 ng/mL) and 11.5 ng/mL (interquartile range 7.5-16.7 ng/mL), respectively (P=0.005). There was a positive correlation between insulin resistance and the grade of hepatosteatosis (P=0.03). CONCLUSIONS: Serum vitamin D levels in children with obesity with hepatosteatosis are significantly lower than vitamin D levels in children with obesity without hepatosteatosis. In this observational study we only refer to the association of vitamin D deficiency/insufficiency with hepatosteatosis.


Assuntos
Hepatopatia Gordurosa não Alcoólica/sangue , Obesidade/sangue , Vitamina D/análogos & derivados , Adolescente , Fosfatase Alcalina/sangue , Proteínas de Arabidopsis/sangue , Índice de Massa Corporal , Cálcio/sangue , Estudos de Casos e Controles , Criança , Pré-Escolar , Feminino , Humanos , Resistência à Insulina , Masculino , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/diagnóstico por imagem , Obesidade/complicações , Hormônio Paratireóideo/sangue , Índice de Gravidade de Doença , Fatores Sexuais , Ultrassonografia , Vitamina D/sangue , Circunferência da Cintura
14.
J Pediatr Endocrinol Metab ; 37(5): 413-418, 2024 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-38624096

RESUMO

OBJECTIVES: Gaucher disease (GD) is a lysosomal storage disease caused by glucocerebrosidase (GCase) enzyme deficiency. Gaucher cells transformed from the macrophages by progressive sphingolipid accumulation and infiltrate bone marrow, spleen, liver, and other organs. The accumulation of substrate causes inflammation, compromised cellular homeostasis, and disturbed autophagy. It has been hypothesized that this proinflammatory state of GD leads cytokines and chemokines release. As a result of inflammatory process, the cellular dysfunction caused by disruption of cellular signaling, organelle dysfunction, or autoimmune antibodies may affect endocrine profile of GD patients such as hormone levels, lipid profile, and bone mineral density status. METHODS: A total of 13 patients confirmed to have GD, 12 non-neuronopathic type and one subacute neuronopathic type, were enrolled in our study. RESULTS: The median treatment duration in the enzyme therapy was 13.33 years (9-26 years). At least one endocrinological abnormality was detected in blood tests of nine patients. Hyperinsulinism was the most common finding although fasting blood glucose levels HgbA1c levels were normal in all patients. Two patients had osteopenia, and osteoporosis was detected in two patients. Low HDL levels were detected in six patients, but HDL levels below 23 mg/dL associated with disease severity have been detected in two patients who have not receiving enzyme replacement therapy. None of patients had thyroidal dysfunction. CONCLUSIONS: This study had revealed endocrinological abnormalities in GD patients that have not led any severe morbidity in our patients. However, thyroid hormone abnormalities, insulin resistance, or lipid profile abnormalities may cause unpredictable comorbidities. Endocrinological assessment in GD patients in routine follow-up may prevent possible clinical manifestation in long term as well as can define efficacy of ERT on endocrine abnormalities.


Assuntos
Terapia de Reposição de Enzimas , Doença de Gaucher , Glucosilceramidase , Humanos , Doença de Gaucher/tratamento farmacológico , Doença de Gaucher/sangue , Masculino , Feminino , Adulto , Criança , Adolescente , Adulto Jovem , Glucosilceramidase/uso terapêutico , Seguimentos , Densidade Óssea/efeitos dos fármacos , Doenças do Sistema Endócrino/etiologia , Prognóstico , Biomarcadores/sangue , Biomarcadores/análise
15.
J Pediatr Endocrinol Metab ; 37(6): 571-574, 2024 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-38630895

RESUMO

OBJECTIVES: The mitochondrial elongation factor Tu (EF-Tu), encoded by the TUFM gene, is a GTPase, which is part of the mitochondrial protein translation mechanism. If it is activated, it delivers the aminoacyl-tRNAs to the mitochondrial ribosome. Here, a patient was described with a homozygous missense variant in the TUFM [c.1016G>A (p.Arg339Gln)] gene. To date, only six patients have been reported with bi-allelic pathogenic variants in TUFM, leading to combined oxidative phosphorylation deficiency 4 (COXPD4) characterized by severe early-onset lactic acidosis, encephalopathy, and cardiomyopathy. CASE PRESENTATION: The patient presented here had the phenotypic features of TUFM-related disease, lactic acidosis, hypotonia, liver dysfunction, optic atrophy, and mild encephalopathy. CONCLUSIONS: We aimed to expand the clinical spectrum of pathogenic variants of TUFM.


Assuntos
Fator Tu de Elongação de Peptídeos , Humanos , Acidose Láctica/genética , Mitocôndrias/genética , Mitocôndrias/patologia , Doenças Mitocondriais/genética , Doenças Mitocondriais/patologia , Proteínas Mitocondriais , Mutação , Mutação de Sentido Incorreto , Fator Tu de Elongação de Peptídeos/genética , Prognóstico
16.
J Am Soc Cytopathol ; 13(4): 244-253, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38834386

RESUMO

INTRODUCTION: As our field of pathology continues to grow, our trainee numbers are on the decline. To combat this trend, the ASC Diversity, Equity, and Inclusion Committee established the Science, Medicine, and Cytology SumMer Certificate program to improve exposure to pathology/cytopathology with a focus on diversity, equity, and inclusion. Herein, we report our findings of the first 2 years of the program. MATERIALS AND METHODS: An online course was developed targeting students who are underrepresented in medicine at the high school and college level. It consisted of several didactic sessions, presenting the common procedures involving cytopathologists and cytologists. Interviews with cytopathologists were also included. Participants were surveyed for demographic information and provided course evaluations. RESULTS: In the first year of the program (2021), 34 participants completed the program, which increased to 103 in 2022. In both years there was a diversity in participant demographic backgrounds; however, only a minority of participants self-identified as being underrepresented in medicine. A vast majority (>85%) of participants in both years were high school or college students. In 2021, 100% of participants stated that the program format was effective and 94% thought the content was appropriate for their level of education; in 2022 the results were similar. In 2021, 66% considered health care as a potential career; this value increased in 2022 to 83%. In 2021 and 2022, 31% and 38%, respectively, considered cytology as a career. CONCLUSIONS: Evaluations were excellent, generating interest in cytopathology. Barriers in reaching underrepresented minorities exist and additional work is needed. Expansion to a wider audience may increase outreach.


Assuntos
Sociedades Médicas , Humanos , Feminino , Masculino , Currículo , Estados Unidos , Patologia/educação , Grupos Minoritários/educação , Diversidade Cultural , Patologistas/educação , Adulto , Citologia
17.
Elife ; 122024 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-38567749

RESUMO

Vitamin D possesses immunomodulatory functions and vitamin D deficiency has been associated with the rise in chronic inflammatory diseases, including asthma (Litonjua and Weiss, 2007). Vitamin D supplementation studies do not provide insight into the molecular genetic mechanisms of vitamin D-mediated immunoregulation. Here, we provide evidence for vitamin D regulation of two human chromosomal loci, Chr17q12-21.1 and Chr17q21.2, reliably associated with autoimmune and chronic inflammatory diseases. We demonstrate increased vitamin D receptor (Vdr) expression in mouse lung CD4+ Th2 cells, differential expression of Chr17q12-21.1 and Chr17q21.2 genes in Th2 cells based on vitamin D status and identify the IL-2/Stat5 pathway as a target of vitamin D signaling. Vitamin D deficiency caused severe lung inflammation after allergen challenge in mice that was prevented by long-term prenatal vitamin D supplementation. Mechanistically, vitamin D induced the expression of the Ikzf3-encoded protein Aiolos to suppress IL-2 signaling and ameliorate cytokine production in Th2 cells. These translational findings demonstrate mechanisms for the immune protective effect of vitamin D in allergic lung inflammation with a strong molecular genetic link to the regulation of both Chr17q12-21.1 and Chr17q21.2 genes and suggest further functional studies and interventional strategies for long-term prevention of asthma and other autoimmune disorders.


Assuntos
Asma , Pneumonia , Deficiência de Vitamina D , Camundongos , Animais , Humanos , Vitamina D/farmacologia , Interleucina-2 , Inflamação , Células Th2 , Deficiência de Vitamina D/metabolismo , Vitaminas
18.
Trop Anim Health Prod ; 45(7): 1525-31, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23494576

RESUMO

This study used cultures, polymerase chain reaction (PCR), and immunoperoxidase to examine samples from 216 lungs from sheep and lambs with macroscopic pneumonia lesions for the presence of Mycoplasma species. DNA was extracted from lung tissue samples and broth cultures with the help of a DNA extraction kit and replicated using genus-specific and species-specific primers for mycoplasma. The lung samples were examined by the immunoperoxidase method using hyperimmune Mycoplasma ovipneumoniae serum. The randomly amplified polymorphic DNA (RAPD) test was used for the molecular typing of M. ovipneumoniae isolates. Mycoplasma was isolated in the cultures of 80 (37.03 %) of a total of 216 lung samples. Genus-specific mycoplasma DNA was identified by PCR in 96 (44.44 %) samples in broth cultures and 36 (16.66 %) directly in the lung tissue. Of these 96 cases in which genus-specific identification was made, 57 (59.37 %) were positive for reaction with species-specific primers for M. ovipneumoniae and 31 (32.29 %) for Mycoplasma arginini. The DNA of neither of the latter two species could be identified in the remaining eight samples (8.33 %) where mycoplasma had been identified. As for the immunoperoxidase method, it identified M. ovipneumoniae in 61 of 216 lung samples (28 %). Positive staining was concentrated in the bronchial epithelium cell cytoplasm and cell surface. RAPD analysis resulted in 15 different profiles. Our results suggest that PCR methods could be successfully used in the diagnosis of mycoplasma infections as an alternative to culture method and identifying this agent at the species level.


Assuntos
Mycoplasma/genética , Mycoplasma/isolamento & purificação , Pneumonia por Mycoplasma/veterinária , Doenças dos Ovinos/diagnóstico , Animais , Contagem de Colônia Microbiana/veterinária , DNA Bacteriano/análise , Técnicas Imunoenzimáticas/veterinária , Pulmão/microbiologia , Pulmão/patologia , Mycoplasma ovipneumoniae/genética , Mycoplasma ovipneumoniae/isolamento & purificação , Pneumonia por Mycoplasma/diagnóstico , Pneumonia por Mycoplasma/microbiologia , Reação em Cadeia da Polimerase/veterinária , Técnica de Amplificação ao Acaso de DNA Polimórfico/veterinária , Ovinos , Doenças dos Ovinos/microbiologia , Turquia
19.
Spectrochim Acta A Mol Biomol Spectrosc ; 286: 122037, 2023 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-36335757

RESUMO

Garnets that common constituent of skarn type iron deposits are wide ranges of chemical compositions, and they are also important as a semi-gemstone mineral. This study has been investigated garnets and inclusions of its formed in contacts of Pertek granitoid and Keban marble by using a combination of multiple techniques including Raman spectrum, electron microprobe, petrography and LA-ICP-MS. The main mineral assemblage observed in the skarn formation is diopside, garnet, quartz, magnetite, calcite and pyrite. The garnets are in size between 1 and 7 cm and have reddish, greenish and light-dark brown colour. The compositions of the garnets are mainly grossular-andradite, andradite-grossular, less grossular and andradite. Increased porosity and horizontal flow of hydrothermal fluids during metasomatism resulted in the formation of garnets of different sizes. Raman spectroscopy studies on garnets show to be that the idiomorphic and semi-idiomorphic garnets are predominantly grosular, andradite and uvarovite in the core. Raman spectroscopy studies on garnets showed to have predominantly grossular, andradite and uvarovite composition in the core of the idiomorphic and semi-idiomorphic garnets. As for the rare earth element (REE) analysis and distribution model, the chondrite-normalized REE patterns of all garnets in the study area have similar trends and generally in the right-slopping shape depleted in HREE and enriched in LREE, mostly controlled by adsorption. High Fe2O3, CaO and MgO contents may cause to high mobility during skarn formation associated with contact metamorphism and cation exchange via hydrothermal fluids (eg uvarovite in the core). All garnets have generally positive Ce and positive Eu anomalies. These results suggest that the garnets in the studya area formed in conditions showing increase in pH and high oxygen fugacity or decrease in temperature in the source of the hydrothermal fluids.

20.
J Pediatr Endocrinol Metab ; 0(0): 650-658, 2023 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-37257483

RESUMO

OBJECTIVES: Fabry disease is an X-linked lysosomal disorder caused by decreased or absent alpha galactosidase enzyme. The enzyme deficiency leads to progressive accumulation of globotriaosylceramide (Gb-3) and its deacetylated form lyso-Gb3 in various tissue lysosomes that results in primarily lysosomal deterioration and subsequently mitochondrial, endothelial, and immunologic dysfunctions. METHODS: The endocrinological, metabolic, immunological and HLA status of 12 patients were evaluated. RESULTS: A total of 11 patients (91.6 %) had immunologic and/or endocrinologic abnormalities. fT4, anti-TPO, and anti-TG levels were increased in 1, 2, and 2 patients, respectively. Three patients had elevated proinflammatory cytokines. ANA profile, p-ANCA and c-ANCA were positive in 1, 1, and 2 patients, respectively. Tissue transglutaminase antibody was negative in all patients however P5 was diagnosed with Celiac disease at the age of 12 and on gluten free diet. All patients had distinct types of HLA apart from 2 patients with anti-TG and anti-TPO positive and there was no relationship between the HLA types and the autoimmunity biomarkers. CONCLUSIONS: FD may have impact on endocrinologic and immunologic abnormalities even in the patients under ERT, therefore prevalence of these abnormalities may be higher in ERT naïve patients. However, apparently, they are less likely to cause clinical symptoms. Certain HLA alleles may contribute to the direct impact of immunological pathogenesis in FD by developing abnormal autoimmune biomarkers. To the best of our knowledge, this is the first study investigating HLA status of FD patients; therefore further studies are needed to elucidate the underlying mechanism of action.


Assuntos
Endocrinologia , Doença de Fabry , Humanos , Doença de Fabry/patologia , alfa-Galactosidase , Biomarcadores , Terapia de Reposição de Enzimas
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