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1.
Am J Perinatol ; 2022 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-35580626

RESUMEN

OBJECTIVES: Late-onset sepsis (LOS) is a substantial contributor to morbidity and mortality among neonates. The use of nonculture-based tools for early diagnosis is an area of active investigation. Therefore, we aimed to evaluate the diagnostic value of serum interleukin-27 (IL-27) and mean platelet volume (MPV) in full-term neonates with LOS. STUDY DESIGN: In this single-center, cross-sectional study, 90 full-term newborns were assigned to two equal-matched groups as follows: (1) culture-proven sepsis and (2) control groups. Clinical data and laboratory findings as complete blood pictures, including MPV, highly sensitive C-reactive protein, and blood culture results, were recorded. Moreover, IL-27 levels were measured using enzyme-linked immunosorbent assay. RESULTS: IL-27 levels (median = 4,364 pg/mL) and MPV (mean = 12.02 ± 1.54 FL) were significantly higher in the culture-proven sepsis group than in the control group (p < 0.001). For IL-27, the optimum cut-off value for the diagnosis of LOS was 283.8 pg/mL with sensitivity and specificity of 97.8 and 100%, respectively. For MPV, the optimum cut-off value was 11.6 FL, with diagnostic sensitivity and specificity of 77.8 and 97.8%, respectively. CONCLUSION: IL-27 and MPV are promising markers for the diagnosis of LOS in full-term neonates. The diagnostic performance of IL-27 was superior to MPV. KEY POINTS: · Late-onset neonatal sepsis diagnosis is time consuming.. · Nonculture-based rapid diagnostic tests are much needed.. · IL-27 is superior in LOS diagnosis to MPV..

2.
Am J Perinatol ; 39(15): 1659-1667, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-33636738

RESUMEN

OBJECTIVE: The aim of this study is to evaluate high-risk pregnant females' offspring as regard the presence of any medical condition, hereditary disorder, or major anomaly as well as to document parental sociodemographic characteristics and compliance with follow-up schedules of fetal medicine and clinical genetic clinics. STUDY DESIGN: This prospective 2-year cohort study of neonates and infants reported the referral indications, investigations, and diagnoses obtained through prenatal and postnatal examinations. It also reported their parental follow-up vigilance. RESULTS: Of the 811 infants of high risk females referred 460 (56.7%) came for assessment. Mean parental consanguinity and endogamy were 67 and 71.3%, respectively. All pregnant mothers underwent first-trimester biochemical testing (plasma protein-A, α-fetoprotein [AFP], human chorionic gonadotropin [hCG]) and serial ultrasound examinations. Seventy mothers needed second-trimester biochemical testing (AFP, hCG, and estriol). Sixty-two mothers underwent amniocentesis where G-banding karyotype, fluorescence in situ hybridization and targeted molecular testing for the specific gene mutation of single gene disorders were conducted according to suspected disorders. High quality fetal ultrasound was performed when brain malformations were suspected, while 16 fetuses required brain MRI examination. Mean age of newborns at first examination was 26.5 days. They were grouped according to the maternal indication for referral. Upon examination, 18 neonates had confirmed congenital malformations/genetic disorders. Five of them were diagnosed prenatally. In four other fetuses with single gene disorder, the molecular diagnosis of their affected siblings was not established prior to this pregnancy; thus, prenatal diagnosis was not possible. The remaining nine cases were diagnosed postnatally. CONCLUSION: Parental consanguinity and endogamy were increased among high-risk pregnancies. Public awareness about potential adverse effects of consanguineous marriages and the importance of genetic testing are imperative. A structured multidisciplinary team of specialists in fetal medicine, clinical genetics, and neonatology provides good genetic services. Expansion and financial support of these services are urgently required. KEY POINTS: · A multidisciplinary team provides good genetic services in high-risk pregnancies.. · Parental consanguinity and endogamy are increased among high-risk pregnancies.. · Increased public awareness about genetic testing importance and financial support are imperative..


Asunto(s)
Embarazo de Alto Riesgo , alfa-Fetoproteínas , Embarazo , Femenino , Recién Nacido , Humanos , Estudios de Cohortes , Hibridación Fluorescente in Situ , Estudios Prospectivos , Ultrasonografía Prenatal , Gonadotropina Coriónica , Resultado del Embarazo
3.
Am J Med Genet A ; 167A(10): 2418-24, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26033841

RESUMEN

Generalized hypertrichosis is a feature of several genetic disorders, and the nosology of these entities is still provisional. Recent studies have implicated chromosome 17q24.2-q24.3 microdeletion and the reciprocal microduplication in a very rare form of congenital generalized hypertrichosis terminalis (CGHT) with or without gingival hyperplasia. Here, we report on a 5-year-old Egyptian girl born to consanguineous parents. The girl presented with CGHT and gingival hyperplasia for whom we performed detailed clinical, pathological, and molecular studies. The girl had coarse facies characterized by bilateral epicanthic folds, thick and abundant eyelashes, a broad nose, full cheeks, and lips that constituted the distinctive facial features for this syndrome. Biopsy of the gingiva showed epithelial marked acanthosis and hyperkeratosis with hyperplastic thick collagen bundles and dense fibrosis in the underlying tissues. Array analysis indicated a 17q24.2-q24.3 chromosomal microdeletion. We validated this microdeletion by real-time quantitative PCR and confirmed a perfect co-segregation of the disease phenotype within the family. In summary, this study indicates that 17q24.2-q24.3 microdeletion caused CGHT with gingival hyperplasia and distinctive facies, which should be differentiated from the autosomal recessive type that lacks the distinctive facies.


Asunto(s)
Facies , Fibromatosis Gingival/diagnóstico , Fibromatosis Gingival/genética , Hipertricosis/diagnóstico , Hipertricosis/genética , Secuencia de Bases , Preescolar , Deleción Cromosómica , Cromosomas Humanos Par 17/genética , Consanguinidad , Análisis Mutacional de ADN , Femenino , Fibromatosis Gingival/patología , Genotipo , Humanos , Hipertricosis/patología , Datos de Secuencia Molecular , Fenotipo
4.
Am J Med Genet A ; 158A(11): 2647-55, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-22811286

RESUMEN

The aim of the study was to construct new reference growth charts for weight, length and head circumference of Egyptian children with Down syndrome (DS) from birth to 36 months of age. These specific charts may be used by health professionals involved in medical, physical and developmental care of Egyptian children with Down syndrome. The study included 434 children with non-disjunction trisomy 21, 0-36 months of age. They were 54.4% males and 45.6% females and had no concomitant chronic disease (congenital heart disease, gastrointestinal malformations, hypothyroidism, and blood disorders). Overall, 1,955 observations were performed of weight, length and head circumference. The data for each sex were divided into 37 different age groups with 1-month intervals. All measurements were taken using standardized equipments and following the international recommendations. Values were statistically analyzed and growth curves were plotted as means and standard deviations (SD). Growth measurements evaluated in all age groups of both sexes were significantly lower than those of the controls. There was a gender difference in weight, length and head circumference, males with Down syndrome had higher values. In conclusion, we suggest that these new growth charts specific for Down syndrome children may be used in optimizing direct Egyptian DS children care and in providing anticipatory guidance in term of optimal physical growth and early detection of hidden factors affecting growth.


Asunto(s)
Síndrome de Down/diagnóstico , Gráficos de Crecimiento , Pesos y Medidas Corporales , Preescolar , Egipto , Femenino , Humanos , Lactante , Recién Nacido , Masculino
5.
J Pediatr (Rio J) ; 97(6): 623-628, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33582092

RESUMEN

OBJECTIVE: To evaluate the diagnostic utility of salivary C-reactive protein (CRP) and its potential correlation with serum CRP levels in full-term neonates with late-onset sepsis (LOS). METHODS: This cross-sectional study included 90 neonates assigned to three equal groups: culture proven LOS, clinical LOS and a control group. Clinical findings and routine laboratory data including complete blood pictures and blood culture results were documented. Highly sensitive serum CRP was measured according to hospital protocol, while salivary CRP levels were measured using enzyme-linked immunosorbent assay. RESULTS: The median serum CRP was significantly higher in septic neonates compared to controls (p < 0.001). For serum CRP, the optimum cut-off value for LOS diagnosis was found to be 7.2 mg/L with sensitivity, specificity, positive and negative predictive values of 91, 100, 100, and 85.7%, respectively. No significant difference was observed in levels of salivary CRP among the 3 study groups (p = 0.39). No correlation was found between the levels of salivary and serum CRP (r = 0.074, p = 0.49). CONCLUSION: Serum CRP, at a cut-off value of 7.2 mg/L, exhibited a high specificity and positive predictive value in LOS diagnosis, whereas salivary CRP levels weren't significantly different between the 3 study groups nor did they predict abnormal serum CRP thresholds in newborns with sepsis.


Asunto(s)
Sepsis Neonatal , Sepsis , Biomarcadores , Proteína C-Reactiva/análisis , Estudios Transversales , Humanos , Recién Nacido , Sepsis Neonatal/diagnóstico , Valor Predictivo de las Pruebas , Sensibilidad y Especificidad , Sepsis/diagnóstico
6.
Kobe J Med Sci ; 66(5): E159-E165, 2021 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-34001682

RESUMEN

Familial Mediterranean Fever (FMF) is an autosomal recessive disorder, characterized by recurrent attacks of fever, serositis and articular pain. Mutations in the MEFV gene causes inflammation that may trigger cognitive impairment in FMF patients. The objectives were to identify the effect of anti-inflammatory diet containing curcumin, flaxseed and vitamin D supplementation on the clinical presentation and cognitive functions of FMF patients. The study included 73 FMF patients, that followed in addition to their regular colchicine doses an anti-inflammatory diet (rich in fresh vegetables and fruits, low in saturated and unsaturated fats and carbohydrates, low in food additives, sugar, fast foods and processed foods). In addition, to dietary supplementation with vitamin D, curcumin and flax seeds. Results: Statistically significant improvement was observed regarding clinical presentation, cognitive functions, CRP and subjective wellbeing. Conclusion: Our study highlights the importance of anti-inflammatory diet in the amelioration of the clinical presentation, cognitive functions and general wellbeing of FMF patients. We recommend that our findings would be confirmed by a randomized controlled trial.


Asunto(s)
Cognición , Curcumina/administración & dosificación , Fiebre Mediterránea Familiar/dietoterapia , Fiebre Mediterránea Familiar/genética , Lino , Vitamina D/uso terapéutico , Adolescente , Niño , Colchicina/uso terapéutico , Curcumina/uso terapéutico , Suplementos Dietéticos , Fiebre Mediterránea Familiar/tratamiento farmacológico , Femenino , Amplificación de Genes , Supresores de la Gota/uso terapéutico , Humanos , Masculino , Reacción en Cadena de la Polimerasa , Pirina , Resultado del Tratamiento , Moduladores de Tubulina/uso terapéutico , Vitamina D/administración & dosificación , Adulto Joven
7.
J Pediatr Genet ; 9(2): 109-113, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32341814

RESUMEN

Histiocytosis-lymphadenopathy plus syndrome (H syndrome) is caused by mutations in the SLC29A3 gene that result in histiocytic infiltration of numerous organs. Patients suffering from this disorder can be easily mistaken for similar conditions such as Muckle-Wells syndrome. We present a 9.5-year-old boy, who is the offspring of a consanguineous marriage. He suffered from sensorineural hearing loss, dark hyperpigmented indurated dry areas on the medial thighs sparing the knees with hypertrichosis on the affected areas, and areas of hypopigmentation on the abdomen. The patient displayed mild dysmorphism including frontal bossing, synophrys, bilateral proptosis (with normal thyroid function), thick eyebrows, flat nose, long philtrum, and pectus excavatum. Formal intelligence testing showed that he was a slow learner. Laboratory findings included elevated serum amyloid-A, erythrocyte sedimentation rate, and total proteins in urine tests. Complete blood count showed mild microcytic hypochromic anemia. The molecular analysis was crucial to confirm the provisional clinical diagnosis. H syndrome is a rare autoinflammatory syndrome with pleiotropic manifestations that affect many organs and can be mistaken for other conditions. Our patient's description may expand the phenotype of H syndrome, as areas of hypopigmentation were observed on the abdomen. Molecular analysis of SLC29A3 -related diseases is essential to highlight the variability and increase the awareness of H syndrome aiming for early diagnosis and proper treatment.

8.
J Matern Fetal Neonatal Med ; 33(16): 2768-2774, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30563403

RESUMEN

Introduction: Sepsis has a grave impact on neonatal morbidity and mortality. Proper timely diagnosis and a subsequently tailored management are crucial to improving neonatal outcome and survival. New diagnostic methods are needed and much effort is directed to this objective. In this work, we aimed to evaluate S100A12 protein as a biomarker of neonatal sepsis.Materials and methods: In this prospective single-center study, 118 preterm and term neonates were enrolled and assigned to four groups: controls, infants with no infection, infants with probable infection and infants with proven infection. Clinical and routine laboratory data, the serum levels of S100A12 and additional cytokines (interleukin (IL)-1ß, IL-2, IL-6, IL-17A, IL-18, IL-22, IL-10, and interferon (IFN)-γ) were assessed. Using stepwise multivariate logistic regression analysis, S100A12 protein was evaluated as a biomarker of neonatal infection.Results: Significant differences of the parameters of complete blood count and level of C-reactive protein were documented between the study/the four groups. The studied marker S100A12, as well as IL-6 and IL-10, were highly significant (p < .001) between infected and control groups. S100A12 had a sensitivity of 96.8% and a specificity of 93.3%. Even after adjusting for the confounding factors sex, body weight, gestational age, mode of delivery, number of pregnancies, premature rupture of membranes, and preeclampsia S100A12 remained significant between the infected and control groups.Conclusions: S100A12 may be considered as a new biomarker of neonatal sepsis.


Asunto(s)
Sepsis Neonatal/diagnóstico , Proteína S100A12/sangre , Biomarcadores/sangre , Proteína C-Reactiva/análisis , Estudios de Casos y Controles , Femenino , Humanos , Recién Nacido , Recien Nacido Prematuro , Modelos Logísticos , Masculino , Sepsis Neonatal/sangre , Estudios Prospectivos
9.
J Pediatr Genet ; 8(4): 179-186, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31687254

RESUMEN

Prader-Willi syndrome (PWS) is a distinct neurodevelopmental disorder associated with the deletion within the chromosomal 15q11-q13 region or uniparental disomy of chromosome 15. The etiologic heterogeneity of PWS makes it very difficult to establish uniform diagnostic methods which would result in the detection of most affected individuals. The objective was to report the clinical criteria and oro-dental features in PWS, to report the effect of diet and laser acupuncture on PWS and highlighted an easy effective method for early diagnosis of individuals with PWS. The study included seventeen cytogenetically proven individuals with Prader-Willi syndrome. These patients were subjected to meticulous history taking, clinical examination including oro-dental examination, bone densitometry and neuropsychiatric evaluation. They received laser acupuncture sessions in addition to nutrition intervention. All cases had characteristic facies, hypotonia and various psychosocial difficulties. Other criteria of PWS were present in different percentages. Karyotyping revealed deletion 15q11-q13 in 6 patients, and fluorescence in situ hybridization (FISH) revealed a microdeletion in 15q11-q13 in the other 11 patients. To our knowledge, partial ankyloglossia, median grooved tongue and hypodontia have not previously been reported in PWS patients. Laser acupuncture sessions and diet were effective in weight decline for PWS patients. Our study emphasizes the importance of early detection of PWS, laser sessions, diet restriction and oro-dental examination in the follow up of patients with Prader Willi syndrome.

10.
J Pediatr (Rio J) ; 93(1): 100-104, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-27770619

RESUMEN

OBJECTIVE: Evidence of oxidative stress was reported in individuals with Down syndrome. There is a growing interest in the contribution of the immune system in Down syndrome. The aim of this study is to evaluate the coenzyme Q10 and selected pro-inflammatory markers such as interleukin 6 and tumor necrosis factor α in children with Down syndrome. METHODS: Eighty-six children (5-8 years of age) were enrolled in this case-control study from two public institutions. At the time of sampling, the patients and controls suffered from no acute or chronic illnesses and received no therapies or supplements. The levels of interleukin 6, tumor necrosis factor α, coenzyme Q10, fasting blood glucose, and intelligence quotient were measured. RESULTS: Forty-three young Down syndrome children and forty-three controls were included over a period of eight months (January-August 2014). Compared with the control group, the Down syndrome patients showed significant increase in interleukin 6 and tumor necrosis factor α (p=0.002), while coenzyme Q10 was significantly decreased (p=0.002). Also, body mass index and fasting blood glucose were significantly increased in patients. There was a significantly positive correlation between coenzyme Q10 and intelligence quotient levels, as well as between interleukin 6 and tumor necrosis factor α. CONCLUSION: Interleukin 6 and tumor necrosis factor α levels in young children with Down syndrome may be used as biomarkers reflecting the neurodegenerative process in them. Coenzyme Q10 might have a role as a good supplement in young children with Down syndrome to ameliorate the neurological symptoms.


Asunto(s)
Síndrome de Down/sangre , Interleucina-6/sangre , Estrés Oxidativo , Factor de Necrosis Tumoral alfa/sangre , Ubiquinona/análogos & derivados , Biomarcadores/sangre , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Humanos , Masculino , Estudios Prospectivos , Ubiquinona/sangre
11.
Gene ; 628: 308-314, 2017 Sep 10.
Artículo en Inglés | MEDLINE | ID: mdl-28720532

RESUMEN

Lipoid proteinosis (LP) is an autosomal recessive disorder caused by the loss of function of ECM1 gene. Clinical features include varying degrees of skin thickening, hoarseness of voice and less frequently neuropsychiatric abnormalities. Twelve patients from ten unrelated families with a clinical diagnosis of lipoid proteinosis were enrolled in this study. Extraction of DNA samples of the 12 patients and their parents from peripheral blood by standard methods was performed. Polymerase chain reaction (PCR) amplification of the ECM1 gene was conducted using eight pairs of primers spanning over the 10 exons and splice junctions. Patients exhibited a variety of clinical manifestations with skin affection and hoarseness of voice being the consistent feature. We identified five novel homozygous insertion, small deletion, missense, and splice site mutations as well as two homozygous previously published splice site mutation c.70+1G>C in intron 1 and c.1305-2A>G in intron 8. The specific mutations were: c.10_11insC in exon 1, c.690_691delAG in exon 6, c.734G>A in exon 7, c.1286_1287delAA in exon 8 and c.1393-1G>T in intron 9. The novel mutations c.1393-1G>T and c.10_11insC occurred in three (30%) and two (20%) unrelated patients of the studied families, respectively. Further studies may designate an increased frequency of these mutations among Egyptian LP patients. Identification of pathogenic ECM1 mutations is important for accurate diagnosis and proper genetic counseling.


Asunto(s)
Proteinosis Lipoidea de Urbach y Wiethe/diagnóstico , Proteinosis Lipoidea de Urbach y Wiethe/genética , Adolescente , Edad de Inicio , Alelos , Niño , Preescolar , Consanguinidad , Análisis Mutacional de ADN , Egipto , Proteínas de la Matriz Extracelular/genética , Femenino , Genotipo , Humanos , Lactante , Masculino , Mutación , Linaje , Fenotipo
12.
J. pediatr. (Rio J.) ; 97(6): 623-628, Nov.-Dec. 2021. tab, graf
Artículo en Inglés | LILACS | ID: biblio-1350985

RESUMEN

Abstract Objective: To evaluate the diagnostic utility of salivary C-reactive protein (CRP) and its potential correlation with serum CRP levels in full-term neonates with late-onset sepsis (LOS). Methods: This cross-sectional study included 90 neonates assigned to three equal groups: culture proven LOS, clinical LOS and a control group. Clinical findings and routine laboratory data including complete blood pictures and blood culture results were documented. Highly sensitive serum CRP was measured according to hospital protocol, while salivary CRP levels were measured using enzyme-linked immunosorbent assay. Results: The median serum CRP was significantly higher in septic neonates compared to controls (p < 0.001). For serum CRP, the optimum cut-off value for LOS diagnosis was found to be 7.2 mg/L with sensitivity, specificity, positive and negative predictive values of 91, 100, 100, and 85.7%, respectively. No significant difference was observed in levels of salivary CRP among the 3 study groups (p = 0.39). No correlation was found between the levels of salivary and serum CRP (r = 0.074, p = 0.49). Conclusion: Serum CRP, at a cut-off value of 7.2 mg/L, exhibited a high specificity and positive predictive value in LOS diagnosis, whereas salivary CRP levels weren't significantly different between the 3 study groups nor did they predict abnormal serum CRP thresholds in newborns with sepsis.


Asunto(s)
Humanos , Recién Nacido , Sepsis/diagnóstico , Sepsis Neonatal/diagnóstico , Proteína C-Reactiva/análisis , Biomarcadores , Estudios Transversales , Valor Predictivo de las Pruebas , Sensibilidad y Especificidad
13.
Congenit Anom (Kyoto) ; 56(4): 154-62, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-26710928

RESUMEN

Roberts syndrome and SC phocomelia syndrome are rare autosomal recessive genetic disorders representing the extremes of the spectrum of severity of the same condition, caused by mutations in ESCO2 gene. We report three new patients with Roberts syndrome from three unrelated consanguineous Egyptian families. All patients presented with growth retardation, mesomelic shortening of the limbs more in the upper than in the lower limbs and microcephaly. Patients were subjected to clinical, cytogenetic and radiologic examinations. Cytogenetic analysis showed the characteristic premature separation of centromeres and puffing of heterochromatic regions. Further, sequencing of the ESCO2 gene identified a novel mutation c.244_245dupCT (p.T83Pfs*20) in one family besides two previously reported mutations c.760_761insA (p.T254Nfs*27) and c.764_765delTT (p.F255Cfs*25). All mutations were in homozygous state, in exon 3. The severity of the mesomelic shortening of the limbs and craniofacial anomalies showed variability among patients. Interestingly, patient 1 had abnormal skin hypopigmentation. Serial fetal ultrasound examinations and measurements of long bones diagnosed two affected fetuses in two of the studied families. A literature review and case comparison was performed. In conclusion, we report a novel ESCO2 mutation and expand the clinical spectrum of Roberts syndrome.


Asunto(s)
Anomalías Craneofaciales/diagnóstico , Anomalías Craneofaciales/genética , Ectromelia/diagnóstico , Ectromelia/genética , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Hipertelorismo/diagnóstico , Hipertelorismo/genética , Mutación , Fenotipo , Acetiltransferasas/genética , Preescolar , Proteínas Cromosómicas no Histona/genética , Consanguinidad , Análisis Mutacional de ADN , Facies , Femenino , Homocigoto , Humanos , Lactante , Recién Nacido , Cariotipificación , Masculino , Radiografía
14.
J. pediatr. (Rio J.) ; 93(1): 100-104, Jan.-Feb. 2017. tab
Artículo en Inglés | LILACS | ID: biblio-841314

RESUMEN

Abstract: Objective: Evidence of oxidative stress was reported in individuals with Down syndrome. There is a growing interest in the contribution of the immune system in Down syndrome. The aim of this study is to evaluate the coenzyme Q10 and selected pro-inflammatory markers such as interleukin 6 and tumor necrosis factor α in children with Down syndrome. Methods: Eighty-six children (5-8 years of age) were enrolled in this case-control study from two public institutions. At the time of sampling, the patients and controls suffered from no acute or chronic illnesses and received no therapies or supplements. The levels of interleukin 6, tumor necrosis factor α, coenzyme Q10, fasting blood glucose, and intelligence quotient were measured. Results: Forty-three young Down syndrome children and forty-three controls were included over a period of eight months (January-August 2014). Compared with the control group, the Down syndrome patients showed significant increase in interleukin 6 and tumor necrosis factor α (p = 0.002), while coenzyme Q10 was significantly decreased (p = 0.002). Also, body mass index and fasting blood glucose were significantly increased in patients. There was a significantly positive correlation between coenzyme Q10 and intelligence quotient levels, as well as between interleukin 6 and tumor necrosis factor α. Conclusion: Interleukin 6 and tumor necrosis factor α levels in young children with Down syndrome may be used as biomarkers reflecting the neurodegenerative process in them. Coenzyme Q10 might have a role as a good supplement in young children with Down syndrome to ameliorate the neurological symptoms.


Resumo: Objetivo: Foram relatadas evidências de estresse oxidativo em indivíduos com a síndrome de Down. Há um interesse cada vez maior na contribuição do sistema imunológico na síndrome de Down. O objetivo deste estudo é avaliar a coenzima Q10 e marcadores pró-inflamatórios selecionados, como interleucina 6 e o fator de necrose tumoral α, em crianças com a síndrome de Down. Métodos: Foram inscritas neste estudo de caso-controle 86 crianças (5-8 anos) de duas instituições públicas. No momento da amostragem, os pacientes e os controles não sofriam de doença aguda ou crônica e não recebiam terapia ou suplementos. Foram medidos os níveis de interleucina 6, fator de necrose tumoral α, coenzima Q10, glicemia de jejum e quociente de inteligência. Resultados: Foram incluídas em oito meses (janeiro-agosto 2014) 43 crianças com síndrome de Down e 43 controles. Em comparação com o grupo de controle, os pacientes com síndrome de Down mostraram aumento significativo na interleucina 6 e no fator de necrose tumoral α (p = 0,002), ao passo que a coenzima Q10 apresentou significativa redução (p = 0,002). Além disso, o índice de massa corporal e a glicemia de jejum eram significativamente maiores nos pacientes. Houve uma correlação significativamente positiva entre os níveis de coenzima Q10 e do quociente de inteligência, bem como entre a interleucina 6 e o fator de necrose tumoral α. Conclusão: Os níveis de interleucina 6 e o fator de necrose tumoral α em crianças mais novas com síndrome de Down podem ser usados como biomarcadores, refletem o processo neurodegenerativo neles. A coenzima Q10 pode ter um papel como bom suplemento em crianças com síndrome de Down para melhorar os sintomas neurológicos.


Asunto(s)
Humanos , Masculino , Femenino , Preescolar , Niño , Interleucina-6/sangre , Ubiquinona/análogos & derivados , Factor de Necrosis Tumoral alfa/sangre , Síndrome de Down/sangre , Estrés Oxidativo , Biomarcadores/sangre , Estudios de Casos y Controles , Estudios Prospectivos , Ubiquinona/sangre
15.
J Matern Fetal Neonatal Med ; 24(8): 990-4, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21668322

RESUMEN

OBJECTIVE: Neonatal sepsis is a major cause of morbidity and mortality worldwide. We analyzed the spectrum of pathogens causing neonatal sepsis in various Arabic countries. METHODS: We analyzed hospital-based published studies on neonatal sepsis in eight Arabic countries documenting etiological pathogens and onset of sepsis published between 1990 and 2009. RESULTS: Twelve studies from eight Arabic countries including 2308 newborns with culture proven sepsis and clinical signs of sepsis reported that early onset sepsis ranged from 24 to 74%. Gram-negative organisms were the predominant pathogens in Libya, Egypt, Jordan, and Iraq (65-90% of all sepsis cases) with Klebsiella species (spp.), Serratia spp., Enterobacter spp., Escherichia coli, and Pseudomonas spp. being the most frequent bacteria. In Saudi Arabia, Bahrain and Kuwait, the Gram-positive microorganisms, coagulase negative Staphylocooci and Staphylococcus aureus were taking the lead (64-75%). Group B Streptococci were the predominant pathogen (24%) in the United Arab of Emirates (UAE). Candida species were emerging in Egypt, UAE, Bahrain, and Kuwait. CONCLUSION: The spectrum of microorganisms responsible for neonatal sepsis varies considerably in different Arabic countries. The predominance of Gram-negative bacteria as well as the emergence of Candida species in some areas asks for neonatal networks, benchmarking instruments, and surveillance programs of microorganisms.


Asunto(s)
Sepsis/microbiología , Candidiasis Invasiva/epidemiología , Egipto/epidemiología , Infecciones por Bacterias Gramnegativas/epidemiología , Infecciones por Bacterias Grampositivas/epidemiología , Humanos , Recién Nacido , Libia/epidemiología , Medio Oriente/epidemiología , Sepsis/epidemiología
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