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1.
Mol Cell Biochem ; 446(1-2): 185-197, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-29363057

RESUMEN

Data from our previous work indicate that Lamotrigine (LTG) is teratogenic in the mouse. In the present study, we attempted to determine the possible protective effects of exogenous folate on LTG-induced fetal anomalies in TO mouse. Experiment I entailed administering 4 mg/kg of folinic acid (FA) and (25 mg/kg) of LTG intraperitoneally three times on gestation day (GD) 8 to a group of mice; other groups were a group that received similar volumes of saline, a group that received LTG and Saline, a group that received FA and saline. Experiment 2 involved administering groups of mice with daily 3 doses FA (or proportionate volume of saline) on GD 5 through 10 and either 3 doses of saline on GD8, or 3 doses of LTG on GD8. Maternal plasma concentrations of FA, vitamin B12 and homocysteine were determined an hour after the last injection from one-half of all animals. The other half were allowed to go to term (GD18) when they were euthanized and their fetuses were examined for visceral and skeletal malformations. A high incidence of resorption, abortion, embryolethality, congenital malformations, and intrauterine growth restriction (IUGR), was observed in the LTG-treated group. Folic acid and B12 levels were decreased and homocysteine concentration increased significantly in LTG groups. Mice receiving LTG with FA had normal levels of folate, Vitamin B12 and homocysteine levels, and the fetuses had fewer birth defects similar to the controls which were given saline only. Supplemental FA ameliorated to a great extent the LTG-induced embryonic resorption and malformations and restored the FA status.


Asunto(s)
Anomalías Múltiples/inducido químicamente , Anomalías Múltiples/embriología , Anomalías Múltiples/prevención & control , Feto/embriología , Leucovorina/farmacología , Triazinas/efectos adversos , Anomalías Múltiples/patología , Animales , Feto/patología , Lamotrigina , Ratones , Triazinas/farmacología
2.
East Mediterr Health J ; 22(5): 293-300, 2016 Aug 18.
Artículo en Inglés | MEDLINE | ID: mdl-27553395

RESUMEN

This descriptive study evaluated the nutrient adequacy of the diet of infants (aged 6-11.9 months) and toddlers (aged 12-24 months) in the United Arab Emirates. A random sample of 1000 infants and toddlers was recruited from 2 cities (Al Ain and Dubai) from March 2011 to February 2012 and their usual nutrient intake was determined using 24-hour recall. In all, 54.2% of infants and 25.2% of toddlers were breastfeeding. Mean energy intake of infant girls in Al Ain and Dubai was 747 (SD 189) kcal and 773 (SD 215) kcal respectively and 810.5 (SD 232.2) kcal and 821.9 (SD 262) kcal for boys. In toddlers, mean energy intake for girls in Al Ain and Dubai was 1032.8 (SD 252) kcal and 1013 (SD 339.1) kcal respectively and 1057.2 (SD 201.8) kcal and 1030.3 (SD 341.7) kcal for boys. Iron intake was low in both groups. Mean body mass index and body weight and height were similar to World Health Organization figures but significant numbers of infants and toddlers of both sexes were over- or underweight. Although mean energy and macronutrient intakes were comparable to the RDA, significant numbers were over- or underfed.


Asunto(s)
Lactancia Materna , Ingestión de Energía , Preescolar , Encuestas sobre Dietas , Femenino , Humanos , Lactante , Entrevistas como Asunto , Masculino , Investigación Cualitativa , Encuestas y Cuestionarios , Emiratos Árabes Unidos
3.
J Multidiscip Healthc ; 16: 707-716, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36938485

RESUMEN

Background: Following the coronavirus disease (COVID-19) declaration as a pandemic, Yemen has started applying preventive measures to prevent its spread. This study aims to identify the perception regarding the nature of the COVID-19 disease, susceptibility to severe forms of the disease, and its relationship to seasonal influenza among the population of Yemen. Methods: This was a cross-sectional study of the public in Yemen. The relationship between participants' sociodemographic factors and their responses was assessed by the chi-square test. Results: A total of 748 participants agreed to participate in the study. Regarding the nature of the diseases, nearly half of the participants (48.8%, n=352) believed that COVID-19 is a naturally occurring human virus that is a serious and fatal disease (61.2%, n=448). The majority (74.9%; n=518) did not agree that bacteria cause COVID-19. More than half of the participants (57.5%, n=423) believed this disease is transmitted to humans through a host animal. Regarding the vulnerable groups to develop severe COVID-19 infection, most of the participants pointed out that the elderly (94.3%, n=705), people with chronic diseases (89.9%, n=669), and pregnant women (53%, n=365) were more susceptible to severe diseases. Regarding symptoms, the majority (61.9%, n=458) of the participants agreed that the symptoms of COVID-19 are similar to those of seasonal influenza. Additionally, the majority (81.9%, n=579) agreed that some individuals develop more severe symptoms than seasonal influenza, particularly those with chronic illness. Gender, age, and education were found to be associated with participants' perceptions regarding the nature of the virus and susceptibility to severe disease. Conclusion: Participants demonstrate a good understanding of the nature and susceptibility to complications associated with COVID-19 disease and its relationship to influenza. However, the respondents with a lower level of education might require additional educational campaigns to improve their awareness of the disease.

4.
Clin Exp Dermatol ; 34(2): 178-82, 2009 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19018792

RESUMEN

Exfoliative erythema of malnutrition is a collective term for skin lesions caused by a combination of multiple deficiencies in vitamins, microelements, essential fatty acids and amino acids. We report a 3-year-old Iraqi girl with malnutrition due to coexisting coeliac and Hartnup's disease. On admission to hospital, she presented with kwashiorkor, anaemia, hepatitis and hypoalbuminia. She had severe skin changes with erythema, desquamation, erosions and diffuse hyperpigmentation involving the whole integument, particularly the perioral area, trunk and legs. She also had angular cheilitis, glossitis, conjunctivitis and diffuse alopecia. After treatment with a high-protein gluten-free diet and supplementation with vitamins and microelements there was a rapid improvement in the skin lesions. The severity of the skin lesions in this case can be explained by the coexistence of two metabolic diseases causing complex malnutrition.


Asunto(s)
Enfermedad Celíaca , Trastornos de la Nutrición del Niño , Eritema , Glútenes/efectos adversos , Enfermedad de Hartnup , Alopecia/complicaciones , Enfermedad Celíaca/complicaciones , Enfermedad Celíaca/dietoterapia , Enfermedad Celíaca/patología , Trastornos de la Nutrición del Niño/complicaciones , Trastornos de la Nutrición del Niño/dietoterapia , Preescolar , Dieta Sin Gluten , Eritema/dietoterapia , Eritema/etiología , Eritema/patología , Femenino , Glositis/complicaciones , Enfermedad de Hartnup/complicaciones , Enfermedad de Hartnup/dietoterapia , Enfermedad de Hartnup/patología , Humanos , Padres/educación , Piel/patología , Resultado del Tratamiento , Vitaminas/administración & dosificación
5.
Ann Hum Biol ; 35(6): 615-23, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-19023734

RESUMEN

BACKGROUND: Despite rapid economic growth and the recognition of intrauterine growth pattern as an important indicator of neonatal morbidity and mortality, the size at birth relative to gestation for UAE (United Arab Emirates) live births has not been investigated. AIM: The present study evaluated the intrauterine growth pattern of UAE infants and compared the data with the currently used reference standard. SUBJECTS AND METHODS: A total of 2497 singleton hospital live births to UAE mothers without pregnancy complications were studied. Anthropometric measurements and gestational age assessment of each infant were carried out according to standard procedures. The LMS computer program was used to construct perentile curves. RESULTS: The mean birth weight, length and head circumference of 1113 male term infants were 3298 g, 50.6 cm and 34.5 cm, respectively, and the same parameters for 1118 female term infants were 3201 g, 49.9 cm and 34.0 cm, respectively. These growth parameters were higher in males than females. Mean birth weight data were similar to those reported previously from a study from an economically developed community. The 10th percentile values were higher than in the currently used reference chart. CONCLUSION: Data on size at birth for UAE infants indicate that continuing use of the current reference chart may underestimate the prevalence of fetal growth failure in the population. Data from larger numbers of very preterm infants are needed to generate percentiles charts for very preterm infants.


Asunto(s)
Antropología/métodos , Peso al Nacer , Estatura , Edad Gestacional , Recién Nacido , Femenino , Cabeza/embriología , Cabeza/crecimiento & desarrollo , Humanos , Recien Nacido Prematuro/crecimiento & desarrollo , Masculino , Estándares de Referencia , Emiratos Árabes Unidos/epidemiología , Estados Unidos
6.
Pharmacogenetics ; 7(1): 73-82, 1997 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9110365

RESUMEN

Polymorphic N-acetyltransferase (NAT2) genotypes were determined in 106 unrelated Emiratis by PCR-RFLP analysis to obtain estimates of allele frequencies. Thirteen different genotypes were found, four associated with the rapid acetylator phenotype and nine with the slow acetylator phenotype. Among 67 phenotypically slow acetylators, there was 100% concordance between phenotype and genotype. Among 39 phenotypically rapid acetylators, 37 possessed at least one wild type allele; a 95% concordance with genotype. Seven different NAT2 alleles associated with slow acetylation were found. The commonest was a NAT2*5 type (C481T) allele which occurred with a frequency of 0.53, a significantly higher frequency than has been reported for other ethnic groups. A second slow allele, a NAT2*6 type (G590A), occurred with a frequency of 0.21. The most common genotypes found were NAT2*5/*5 homozygotes, NAT2*5/*6 heterozygotes and NAT2*4/*5 heterozygotes with frequencies of 0.25, 0.25 and 0.22 respectively. The high overall prevalence of alleles associated with slow acetylation (173/212; 81.6%) among Emiratis is consistent with previously reported high frequency of the slow acetylator phenotype in Arabs. Two apparently new slow alleles were identified but have not yet been fully characterized. One appears to be a NAT2*5 variant allele. The other uncharacterized allele appears likely to contain an entirely new mutation associated with slow acetylation.


Asunto(s)
Árabes/genética , Arilamina N-Acetiltransferasa/genética , Frecuencia de los Genes , Polimorfismo Genético , Alelos , Arilamina N-Acetiltransferasa/metabolismo , Secuencia de Bases , Cartilla de ADN , Genotipo , Humanos , Reacción en Cadena de la Polimerasa , Polimorfismo de Longitud del Fragmento de Restricción , Mapeo Restrictivo , Emiratos Árabes Unidos
7.
Am J Med Genet ; 103(2): 128-32, 2001 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-11568918

RESUMEN

The association of neural tube defects (NTDs) with Down syndrome (trisomy 21) and altered folate metabolism in both mother and affected offspring provide a unique opportunity for insight into the etiologic role of folate deficiency in these congenital anomalies. We describe here the case of a male child with trisomy 21, cervical meningomyelocele, agenesis of corpus callosum, hydrocephaly, cerebellar herniation into the foramen magnum, and shallow posterior cranial fossa. Molecular analysis of the methylenetetrahydrofolate (MTHFR) gene revealed homozygosity for the mutant 677C-->T polymorphism in both the mother and child. The plasma homocysteine of the mother was highly elevated at 25.0 micromol/L and was associated with a low methionine level of 22.1 micromol/L. Her S-adenosylhomocysteine (SAH) level was three times that of reference normal women, resulting in a markedly reduced ratio of S-adenosylmethionine (SAM) to SAH and significant DNA hypomethylation in lymphocytes. The child had low plasma levels of both homocysteine and methionine and a reduced SAM/SAH ratio that was also associated with lymphocyte DNA hypomethylation. In addition, the child had a five-fold increase in cystathionine level relative to normal children, consistent with over-expression of the cystathionine beta synthase gene present on chromosome 21. We suggest that altered folate status plus homozygous mutation in the MTHFR gene in the mother could promote chromosomal instability and meiotic non-disjunction resulting in trisomy 21. Altered folate status and homozygous TT mutation in the MTHFR gene in both mother and child would be expected to increase the risk of neural tube defects. The presence of both trisomy 21 and postclosure NTD in the same child supports the need for an extended periconceptional period of maternal folate supplementation to achieve greater preventive effects for both NTD and trisomy 21.


Asunto(s)
Síndrome de Down/patología , Ácido Fólico/metabolismo , Defectos del Tubo Neural/patología , Oxidorreductasas actuantes sobre Donantes de Grupo CH-NH/genética , Aminoácidos Sulfúricos/sangre , Consanguinidad , ADN/genética , ADN/metabolismo , Metilación de ADN , Síndrome de Down/enzimología , Síndrome de Down/genética , Genotipo , Humanos , Lactante , Masculino , Metilenotetrahidrofolato Reductasa (NADPH2) , Mutación , Defectos del Tubo Neural/enzimología , Defectos del Tubo Neural/genética , Oxidorreductasas actuantes sobre Donantes de Grupo CH-NH/metabolismo , Polimorfismo Genético
8.
Clin Biochem ; 34(5): 399-406, 2001 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-11522278

RESUMEN

OBJECTIVE: To determine whether the well-established filter paper spotted blood method used for the determination of some amino acids could be reliably used to measure all amino acids and whether amino acid results thus obtained are reproducible and comparable to the results obtained by measuring plasma amino acids in either capillary or venous blood. METHODS: This is a prospective study in which blood samples from a finger-prick were collected in capillary tubes and at the same time blotted on filter papers; another sample was taken from a vein, from 19 healthy volunteers aged between 18 and 24 yr after a strict 12-h overnight fast. Another 9 healthy adult volunteers provided blood samples on filter papers for the storage study; 9 samples were analyzed immediately; 9, 8 and 4 samples were stored at -20 degrees C, -4 degrees C and room temperature respectively and analyzed after 14 days; 8 samples stored at -20 degrees C were analyzed after 4 weeks. RESULTS: Intra-sample reproducibility in the filter paper blood from the same individual was found to be mostly less than 20%, while for the capillary blood was less than 5%. The greatest variability was in cystine and methionine. There was no significant difference between results obtained from capillary blood and from venous blood, but there was a significant difference between amino acid concentrations in venous and capillary blood on the one hand and filter paper blood on the other. Storage at different temperatures and for a varied period of time showed little change except in serine, glutamate, ornithine, histidine, cystine and methionine. There was a 30% decrease in concentrations of most amino acids in filter paper blood when compared to capillary or venous blood probably because of loss in the extraction process. CONCLUSION: A new set of values for amino acids in filter paper blood in normal individuals is presented. Blood spotted filter paper could be used to screen practically all inborn errors of amino acid metabolism.


Asunto(s)
Aminoácidos/sangre , Cromatografía por Intercambio Iónico/métodos , Adolescente , Adulto , Factores de Edad , Recolección de Muestras de Sangre/métodos , Capilares , Frío , Cistina/sangre , Ácido Glutámico/sangre , Histidina/sangre , Humanos , Metionina/sangre , Ornitina/sangre , Papel , Reproducibilidad de los Resultados , Serina/sangre , Temperatura , Venas
9.
J Infect ; 45(1): 42-6, 2002 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-12217731

RESUMEN

OBJECTIVE: To determine the maternal colonization rate with group B streptococcus (GBS) and to identify the most frequent GBS serotypes occurring in UAE women during labour. STUDY DESIGN: From February 1998 to January 1999, five hundred and sixty three pregnant women from a similar socio-economic and ethnic population were enrolled for the study. High vaginal swab cultures for GBS were obtained at the time of admission for delivery. Isolates were classified according to their capsular polysaccharide types (Ia, Ib, Ic, II-V) and c protein antigen compound. RESULTS: Fifty-seven (10.1%) of 563 mothers were found to be carriers of GBS. Among the isolates, serotype IV (26.3%) predominated followed by type Ia (21.0%), type III (17.6%), type V (12.3%) and nontypeable, which accounted for 15.8%. CONCLUSIONS: In view of the unknown status for GBS carrier rates in our community, this study suggests that about 10% of UAE women are colonized with group B streptococcus at delivery. The serotype distribution of the isolates in this population is different than those reported elsewhere with type IV predominating followed by type Ia and III.


Asunto(s)
Complicaciones Infecciosas del Embarazo/microbiología , Infecciones Estreptocócicas/microbiología , Streptococcus/clasificación , Streptococcus/aislamiento & purificación , Adulto , Portador Sano/epidemiología , Portador Sano/microbiología , Portador Sano/transmisión , Femenino , Humanos , Recién Nacido , Transmisión Vertical de Enfermedad Infecciosa , Trabajo de Parto , Parto , Embarazo , Complicaciones Infecciosas del Embarazo/epidemiología , Sepsis/microbiología , Sepsis/transmisión , Infecciones Estreptocócicas/epidemiología , Infecciones Estreptocócicas/transmisión , Emiratos Árabes Unidos/epidemiología
10.
Pediatr Neurol ; 16(3): 232-6, 1997 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-9165515

RESUMEN

The cranial magnetic resonance imaging findings in three siblings with nonrhizomelic chondrodysplasia punctata due to isolated dihydroxyacetonephosphate acyltransferase (DHAP-AT) deficiency are reported. Areas of high signal intensity in a patchy distribution on the T2-weighted images were detected in the centrum semiovale in the eldest patient (a 6-year-old girl). The white matter of the second child (a 5-year-old boy) was spared, whereas the youngest sibling (a 2-year-old boy) manifested very severe white matter abnormalities. DHAP-AT catalyzes the first step in the synthesis of plasmalogens, which are major constituents of myelin. Defective plasmalogen synthesis may have contributed to abnormal myelin formation in 2 patients. Because the clinical presentation of the child without detectable defect in myelination was similar to that of his siblings, the neurologic signs observed in isolated DHAP-AT deficiency cannot be attributed solely to the disturbances in the myelin formation.


Asunto(s)
Aciltransferasas/deficiencia , Microcuerpos/enzimología , Vaina de Mielina/patología , Encéfalo/patología , Niño , Preescolar , Condrodisplasia Punctata/diagnóstico por imagen , Condrodisplasia Punctata/etiología , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Radiografía
11.
Early Hum Dev ; 16(2-3): 253-61, 1988 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-3378529

RESUMEN

Oxygen consumption at different stages of vigilance, and for the whole 24 h, was measured in 13 small-for-gestational age (SGA) and 16 appropriate-for-age (AGA) premature infants at ages of 4-25 days. Brain weight was calculated from head circumference measurements and expressed as percentage of body weight and was found to be significantly higher in SGA infants than AGA ones (14% +/- 2.1 (S.D.) in the SGA and 12.3% +/- 1.5 (S.D.) in the AGA infants). Metabolic rate (MR) was calculated and expressed as kcal/centimetre head circumference, kcal/g brain wt. and kcal/kg body wt. Whereas MR expressed in kg body wt. was significantly higher in SGA infants than in AGA ones, no difference could be detected in the values when MR was expressed as kcal/cm head circumference, or MR/g brain wt. The difference that exists in the metabolic rates between SGA and AGA infants can be minimised by using head circumference as a reference. Therefore, the apparently high MR found in SGA infants in the neonatal period can be attributed, in a major way, to their relatively large brain size.


Asunto(s)
Encéfalo/anatomía & histología , Recién Nacido Pequeño para la Edad Gestacional/metabolismo , Femenino , Humanos , Recién Nacido , Recien Nacido Prematuro/metabolismo , Masculino , Tamaño de los Órganos , Consumo de Oxígeno
12.
East. Mediterr. health j ; 22(5): 293-300, 2016-05.
Artículo en Inglés | WHOLIS | ID: who-259965

RESUMEN

This descriptive study evaluated the nutrient adequacy of the diet of infants [aged 6-11.9 months] and toddlers [aged 12-24 months] in the United Arab Emirates. A random sample of 1000 infants and toddlers was recruited from 2 cities [Al Ain and Dubai] from March 2011 to February 2012 and their usual nutrient intake was determined using 24-hour recall. In all, 54.2% of infants and 25.2% of toddlers were breastfeeding. Mean energy intake of infant girls in Al Ain and Dubai was 747 [SD 189] kcal and 773 [SD 215] kcal respectively and 810.5 [SD 232.2] kcal and 821.9 [SD 262] kcal for boys. In toddlers, mean energy intake for girls in Al Ain and Dubai was 1032.8 [SD 252] kcal and 1013 [SD 339.1] kcal respectively and 1057.2 [SD 201.8] kcal and 1030.3 [SD 341.7] kcal for boys. Iron intake was low in both groups. Mean body mass index and body weight and height were similar to World Health Organization figures but significant numbers of infants and toddlers of both sexes were over- or underweight. Although mean energy and macronutrient intakes were comparable to the RDA, significant numbers were over- or underfed


La présente étude descriptive avait pour objectif d'évaluer la valeur nutritionnelle de l'alimentation des nourrissons [6 à 11,9 mois] et des jeunes enfants [12 à 24 mois] aux Emirats arabes unis. Un échantillon aléatoire de 1000 nourrissons et de jeunes enfants a été sélectionné dans deux villes [Al-Aïn et Dubaï] entre mars 2011 et février 2012, et leur apport nutritionnel habituel a été déterminé au moyen du rappel des 24h. Au total, 54,2% des nourrissons et 25,2% des jeunes enfants étaient allaités au sein. L'apport énergétique moyen des nourrissons de sexe féminin à Al-Aïn et Dubaï était de 757 kcal [ET 189] et de 773 kcal [ET 215] respectivement, et de 810,5 kcal [ET 232,2] et de 821,9 kcal [ET 262] pour les nourrissons de sexe masculin. Concernant les jeunes enfants, l'apport énergétique moyen des petites filles à Al-Aïn et Dubaï était de 1032,8 kcal [ET 252] et de 1013 kcal [ET 339,1] respectivement, et de 1057,2 kcal [ET 201,8] et de 1030,3 kcal [ET 341,7] pour les petits garçons. L'apport en fer était faible dans les deux groupes. L'index de masse corporelle ainsi que le poids corporel et la taille moyens étaient similaires aux chiffres de l'Organisation mondiale de la Santé, mais un nombre important de nourrissons et de jeunes enfants des deux sexes étaient en surpoids ou souffraient au contraire d'insuffisance pondérale. Bien que l'apport énergétique et l'apport en macronutriments moyens étaient comparables aux apports journaliers recommandés, un nombre important des sujets étaient sur ou sous-alimentés


Asunto(s)
Apoyo Nutricional , Alimentos , Estado Nutricional , Lactancia Materna , Lactante , Encuestas y Cuestionarios , Padres , Emiratos Árabes Unidos
13.
Reprod Toxicol ; 29(3): 366-77, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20206253

RESUMEN

Vigabatrin (VGB) has several therapeutic advantages over older antiepileptic drugs (AED), but there is a lack of information about its potential reproductive toxicologic effects. Our aim was to evaluate the consequences of VGB administered during late gestation on fetal growth and development in the mouse. Based on the results of our previous study, we administered groups of mice a single dose of 450 mg/kg VGB on one of gestation days (GD) 15, 16 or 17. Fetuses were collected on GD 18. VGB groups had a significant incidence of fetal death, abortion, intrauterine growth restriction (IUGR), and hypoplasia of the axial skeleton, metacarpals, metatarsal and phalanges. Abortion was characterized by visible hemorrhagic expulsion of the embryos with their membranes. Maternal plasma folate (FA) and vitamin B12 concentrations were found to be markedly reduced within 12h of VGB treatment. Mice were supplemented with FA from GD 12 through GD 17 with or without a single dose of VGB on GD 15. This group had no abortions. Their fetuses had better body weight and lower frequency of IUGR than those of the non-supplemented VGB group. These data suggest that reductions in maternal FA and vitamin B12 concentrations play an important role in fetal loss, IUGR and skeletal hypoplasia induced by VGB during late gestation in the mouse. In view of the finding that a significant maternal toxicity is associated with this dose regimen, additional groups of mice were treated with 350 mg/kg VGB during embryogenesis and late gestation. This treatment was found to be maternally nontoxic. However, this low dose also resulted in significant fetal loss and IUGR when treatment occurred during late gestation. These data support the hypothesis that late gestation is particularly susceptible to VGB-induced fetal loss and IUGR in the mouse.


Asunto(s)
Anticonvulsivantes , Desarrollo Fetal/efectos de los fármacos , Vigabatrin , Animales , Anticonvulsivantes/efectos adversos , Anticonvulsivantes/farmacología , Huesos , Suplementos Dietéticos , Desarrollo Embrionario/efectos de los fármacos , Femenino , Retardo del Crecimiento Fetal/inducido químicamente , Feto , Ácido Fólico/efectos adversos , Ácido Fólico/farmacología , Ratones , Ratones Endogámicos , Sistema Musculoesquelético , Embarazo , Reproducción , Mortinato , Vigabatrin/efectos adversos , Vigabatrin/farmacología , Vitamina B 12/efectos adversos , Vitamina B 12/farmacología
14.
Community Genet ; 8(3): 186-96, 2005.
Artículo en Inglés | MEDLINE | ID: mdl-16113536

RESUMEN

The UAE society is cosmopolitan, but the indigenous inhabitants are traditional with puritanical values despite their exposure to other vastly different cultures and habits. Marriages between consanguineous couples are still the norm rather than the exception. As a result, there is a high frequency of genetic disorders, particularly autosomal recessive types. Despite the high frequency of genetic disorders like haemoglobinopathies and others characteristically found in this population, genetic services are inadequate. Screening for certain disorders like thalassaemia are not applied on a wide scale. Abortion is illegal, and therefore, prenatal diagnosis or preconception tests are not done. With the absence of a good national database, deficiency of genetic services and absence of preventative alternatives for carrier couples, genetic counsellors find it difficult to advice pragmatic solutions to issues relating to genetic diseases. This paper reviews common genetic problems in the UAE with special emphasis on available genetic services and support to families with children with inherited disorders. Existing barriers to the improvement of clinical services by prenatal counselling are also discussed.


Asunto(s)
Enfermedades Genéticas Congénitas/genética , Genética de Población , Árabes , Anomalías Congénitas/genética , Fibrosis Quística/genética , Sordera/genética , Etnicidad/genética , Geografía , Deficiencia de Glucosafosfato Deshidrogenasa/genética , Humanos , Errores Innatos del Metabolismo/genética , Enfermedades Neuromusculares/genética , Osteocondrodisplasias/genética , Emiratos Árabes Unidos , Talasemia alfa/genética , Talasemia beta/genética
15.
Med Teach ; 13(4): 281-8, 1991.
Artículo en Inglés | MEDLINE | ID: mdl-1805101

RESUMEN

The characteristics of the foundation staff of the United Arab Emirates (UAE) University Faculty of Medicine numbering 18 were studied using open-ended questions in an interview setting. All were experienced academically with mean total years of experience being more than 20 years. The mean age of 51.7 years indicated that the majority of staff interviewed were in the latter stage of their academic career. Although one of the criteria for accepting candidates was flexibility in their outlook to new teaching learning systems and positive attitudes to problem-based learning (PBL), only seven understood PBL and five were openly hostile to the system. The reasons for joining the Faculty were protean, but most saw the job as being challenging in nature and a change from routine. The question is raised whether the selection procedure was appropriate and whether more stringent criteria might have been applied, to have included attitudinal aspects in addition to the academic achievements of the candidates, for the rightly motivated and oriented individual to be appointed.


Asunto(s)
Actitud , Curriculum , Educación de Pregrado en Medicina/normas , Docentes Médicos , Solución de Problemas , Adulto , Anciano , Humanos , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Emiratos Árabes Unidos
16.
Med Teach ; 15(2-3): 243-51, 1993.
Artículo en Inglés | MEDLINE | ID: mdl-8246721

RESUMEN

The performance of three groups of medical students was evaluated at the end of one phase of their studies--after 2 years of premedicine. The aim of the study was to determine whether any of the assessment methods--secondary school grades, entrance examination or test for proficiency in the English language, used for selection of medical students, could reliably predict student performance in the early stages of their education. A significant correlation was found between secondary school grades and the entrance exam on the one hand and grade point average (GPA) on the other. However the results of the test for English proficiency did not correlate with the GPA. It is concluded that the secondary school grade on its own is a good predictor of academic performance in the early stages of medical undergraduate education.


Asunto(s)
Educación de Pregrado en Medicina/organización & administración , Evaluación Educacional , Criterios de Admisión Escolar , Predicción , Emiratos Árabes Unidos
17.
Pediatr Res ; 18(10): 928-31, 1984 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-6493850

RESUMEN

We have developed a method for measuring oxygen consumption (Vo2) in preterm infants in their normal incubator environment over prolonged periods. The results of measurements made over 24 h in 18 infants are presented. In normally grown infants, the mean Vo2 was 9.66 +/- 1.25 liters/kg X 24 h (SD) (6.71 +/- 0.87 ml/kg X min), and in small for gestation infants it was 10.09 +/- 1.21 liters/kg X 24 h (7.00 +/- 0.84 ml/kg X min). During the 24-h measurements, the highest mean Vo2 during 3 consecutive h was 7.75 +/- 0.89 ml/kg X min and the lowest was 5.95 +/- 0.92 ml/kg X min. The difference between the highest and the lowest values was significant (p less than 0.001). There is room for considerable error if short term measurements are assumed to represent values over a whole day. "Short" measurements should be made over at least 6 h.


Asunto(s)
Recien Nacido Prematuro , Oxígeno/fisiología , Peso al Nacer , Metabolismo Energético , Humanos , Incubadoras para Lactantes , Lactante , Recién Nacido , Recién Nacido Pequeño para la Edad Gestacional
18.
Allergy ; 49(9): 737-43, 1994 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-7695063

RESUMEN

This study investigated the association of asthma, allergic rhinitis, and eczema in United Arab Emirates (UAE) schoolchildren with allergic conditions in their parents. A cross-sectional, population-based study among schoolchildren aged 6-14 years was conducted in Al-Ain City, UAE. The field survey was conducted from October 1992 to May 1993. A questionnaire was distributed to 850 UAE government school students from representative, randomly selected schools with a majority of UAE nationals. The student and both or either of the parents were present during the interview. A detailed clinical history of asthma and wheezing in the target children and a history of asthma and allergic rhinitis in their parents and siblings were obtained. It was found that 13.1% of asthmatic children had mothers with asthma (relative risk (RR) = 2.67; 95% confidence intervals (CI) = 1.65-4.35), and 15.2% had fathers who were asthmatic (RR = 2.85; 95% CI = 1.81-4.49). This contrasted with 4.4% of nonasthmatic children who had fathers with asthma, and 4.1% who had mothers with asthma. A similar pattern was seen with symptoms of allergic rhinitis when it was found that 34.3% of children who had asthma had mothers with allergic rhinitis (RR: 2.74; 95% CI: 1.90-3.94). The corresponding figure for fathers was 12.7% (RR: 0.92; 95% CI: 0.5-1.7). The frequency of either parent of the asthmatic children having allergic rhinitis was 28.6%; for both parents, it was 14.5%. It was also found that asthmatic children had 12.5% of their fathers, 32.8% of their mothers, 26.4% of either of their parents, and 33.3% of both their parents suffering from allergic rhinitis.(ABSTRACT TRUNCATED AT 250 WORDS)


Asunto(s)
Asma/epidemiología , Eccema/epidemiología , Padre , Madres , Rinitis Alérgica Perenne/epidemiología , Adolescente , Adulto , Asma/genética , Niño , Análisis por Conglomerados , Intervalos de Confianza , Estudios Transversales , Eccema/genética , Femenino , Humanos , Incidencia , Masculino , Prevalencia , Rinitis Alérgica Perenne/genética , Factores de Riesgo , Población Rural , Emiratos Árabes Unidos/epidemiología , Población Urbana
19.
Arch Dis Child ; 61(11): 1136-7, 1986 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-3789796

RESUMEN

Data are presented on faecal water losses in 93 preterm infants being fed breast milk (72 infant days) or formula (280 days). Losses per kg increased to 4 weeks, when they amounted to 11% of water requirement in infants fed breast milk and 8% in infants fed formula.


Asunto(s)
Agua Corporal/metabolismo , Heces/análisis , Recien Nacido Prematuro/metabolismo , Humanos , Alimentos Infantiles , Recién Nacido , Leche Humana
20.
J Asthma ; 32(2): 117-24, 1995.
Artículo en Inglés | MEDLINE | ID: mdl-7559261

RESUMEN

The aim of this paper was to study the effect of pets and other domestic animals on bronchial asthma among United Arab Emirates (UAE) schoolchildren aged 6-14 years. A cross-sectional study of 850 schoolchildren living in both urban and rural areas (average age 9.36 +/- 2.11 years, 46.8% boys and 53.2% girls) was conducted using self-administered questionnaires between October 1992 and May 1993. Prevalence rate for asthma, rhinitis, wheeze, cough, and eczema in children from families with and without animals were investigated. A total of 40.7% of families studied were found to keep animals in their homes. Children from families with animals were found to have a significantly higher prevalence rate of respiratory symptoms than those without. The prevalence rate for asthma in children with animals was found to be twice that of children without (RR: 2.03; 95% CI: 1.40-2.95). The risk of having chronic cough (RR: 1.93; 95% CI: 1.21-3.10), breathlessness/chest tightness (RR: 2.53; 95% CI: 1.59-4.02), chronic wheeze (RR: 2.10; 95% CI: 1.20-3.67), allergic rhinitis (RR: 1.53; 95% CI: 1.17-2.00) was significantly higher in children with animals than in children without. Similarly, the risk of having eczema (RR: 2.55; 95%, CI: 1.74-3.75) was significantly higher among children with animals than among those without. Overall, there was a highly statistically significant difference in the prevalence of asthma, wheeze, nocturnal cough, eczema, and rhinitis between children in families with animals and those without (p < 0.0001).(ABSTRACT TRUNCATED AT 250 WORDS)


Asunto(s)
Animales Domésticos , Hipersensibilidad/epidemiología , Trastornos Respiratorios/epidemiología , Adolescente , Animales , Asma/epidemiología , Niño , Preescolar , Tos/epidemiología , Femenino , Humanos , Masculino , Prevalencia , Ruidos Respiratorios , Emiratos Árabes Unidos
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