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1.
Braz. j. biol ; 84: e246460, 2024. tab, graf
Article in English | MEDLINE, LILACS, VETINDEX | ID: biblio-1350310

ABSTRACT

Abstract Field survey study was conducted season (2017). Soybeans and weeds were weekly sampled randomly. Thrips adults were identified and counted. Detection of the virus isolate and the natural incidence was determined using; Mechanical transmission, host range, DAS-ELISA, RT-PCR. The natural incidence thrips individuals was detected depending on the SVNV% in thrips individuals and weeds hosts. Ten thrips species were associated with soybean plants in the field. The most abundant species was T. tabaci, average 256.5 average no.of individuals, followed by F. occidentalis (142.5 average no. of individuals), then N. variabilis (86.6/ average no. of individuals). Fourteen thrips species occurred on 5 legumes field crops and 41 weed plant species within soybean field. The highest average number 40.6.of individuals were recorded on Ammi majus. While the lowest one 3.3 average no. of individuals were on Urtica urens. Only 21diagnostic plant species were susceptible to infection with SVNV. G. max and Vigna radiate, were the highest percentage of infection 80% followed by V. unguilata & N. benthamiana, 75%. Egyptian isolate of Soybean vein necrosis virus (SVNV) in this study showed a high degree of similarity and it is closely related to TSWV from Egypt (DQ479968) and TCSV from USA (KY820965) with nucleotide sequence identity of 78%. Four thrips species transmitted SVNV (F. fusca 4.0%, F. schultzei 4.3%, F. tritici 3.3% and N. variabilis 68.0% transmission). Both C. phaseoli and M. sjostedti can acquire the virus but unable to transmit it. The following species; T. tabaci, F. occidentalis, S. dorsallis and T. palmi cannot acquire or transmit SVNV. The incidence of SVNV in the field started by the end of July then increased gradualy from 12.7 to 71.3% by the end of the season. In conclusion, few thrips individuals invaded soybean crops are enough to transmit high rate of SVNV within the crop. Furthermore, several vector species are also abundant on weeds, which are the major sources of soybean viruses transmitted to the crops. This information might be important for control and reduce the incidence of SVNV infection.


Resumo O estudo de pesquisa de campo foi realizado na temporada (2017). A soja e as ervas daninhas foram amostradas semanalmente de forma aleatória. Tripes adultos foram identificados e contados. A detecção do vírus isolado e a incidência natural foram determinadas usando transmissão mecânica, gama de hospedeiros, DAS-ELISA, RT-PCR. A incidência natural de tripes em indivíduos foi detectada dependendo da % de SVNV em tripes e hospedeiros infestantes. Dez espécies de tripes foram associadas a plantas de soja no campo. A espécie mais abundante foi T. tabaci, com média de 256,5 número médio de indivíduos, seguida por F. occidentalis (142,5) e N. variabilis (86,6 / número médio de indivíduos). Catorze espécies de tripes ocorreram em 5 culturas de leguminosas e 41 espécies de plantas daninhas dentro de campos de soja. O maior número médio de 40,6 indivíduos foi registrado em Ammi majus. Enquanto o mais baixo, 3,3 número médio de indivíduos, foi no Urtica urens. Apenas 21 espécies de plantas diagnosticadas foram suscetíveis à infecção com SVNV. G. max e Vigna radiate foram os maiores percentuais de infecção, 80%, seguidos por V. unguilata e N. benthamiana, 75%. O isolado egípcio neste estudo mostrou um alto grau de similaridade e está intimamente relacionado ao TSWV do Egito (DQ479968) e ao TCSV dos EUA (KY820965), com identidade de sequência de nucleotídeos de 78%. Quatro espécies de tripes transmitiram SVNV (F. fusca 4,0%, F. schultzei 4,3%, F. tritici 3,3% e N. variabilis 68,0% de transmissão). Tanto C. phaseoli quanto M. sjostedti podem adquirir o vírus, mas não podem transmiti-lo. As seguintes espécies, T. tabaci, F. occidentalis, S. dorsallis e T. palmi não podem adquirir ou transmitir SVNV. A incidência de SVNV no campo, iniciada no final de julho, aumentou gradativamente de 12,7 para 71,3% no final da temporada. Em conclusão, poucos indivíduos de tripes invadiram a cultura da soja e são suficientes para transmitir alta taxa de SVNV dentro da cultura. Além disso, várias espécies de vetores também abundam em ervas daninhas, que são as principais fontes dos vírus da soja transmitidos às lavouras. Essas informações podem ser importantes para controlar e reduzir a incidência de infecção por SVNV.


Subject(s)
Humans , Tospovirus , Plant Diseases , Soybeans , Incidence , Urticaceae , Egypt/epidemiology , Plant Weeds , Necrosis
2.
Rev. bras. parasitol. vet ; 28(2): 258-265, Apr.-June 2019. tab, graf
Article in English | LILACS | ID: biblio-1013739

ABSTRACT

Abstract Cysticercus ovis or sheep measles is the larval stage of Taenia ovis, which is the intestinal tapeworm of dogs. It is found in the cardiac and skeletal muscles of sheep and can be the cause of partial or total condemnation of carcasses at abattoirs. The aim of the current work was to determine the prevalence of C. ovis among sheep in Upper Egypt and to present the molecular and phylogenetic analysis of this using the amplified Mitochondrial Cytochrome Oxidase subunit 1 (MT-CO1) gene. A total of 1885 sheep slaughtered at local abattoirs of 4 different governorates of Upper Egypt (Asuit, Sohag, Qena and Aswan) were carefully examined for C. ovis. The overall prevalence of infection was 2.02%. The highest rate of infection was observed in adult animals over 4 years of age (44.73%). There was no significant effect of animal sex on infection rates. The phylogenic analysis of C. ovis Egyptian isolates showed very close similarity to the New Zealand isolate (AB731675). This is the first report showing the genetic analysis of C. ovis in Egypt, which provides a very powerful tool for taxonomy and definitive diagnosis of C. ovis, which could be helpful for preventive and control programs.


Resumo Cysticercus ovis "sheep measles" é o estágio larval da Taenia ovis, encontrada nos músculos de carneiros, causado pela ingestão de ovos de Taenia ovis, parasita de cães. O objetivo do presente trabalho foi determinar a prevalência de C. ovis entre ovinos no Alto Egito e apresentar as análises moleculares e filogenéticas, utilizando o gene da subunidade mitocondrial citocromo-oxidase amplificada 1 (MT-CO1). Um total de 1885 ovinos abatidos em matadouros locais de 4 províncias diferentes do Alto Egito (Asuit, Sohag, Qena e Aswan) foram cuidadosamente examinados para C. ovis. A prevalência geral de infecção foi de 2,02%. A maior taxa de infecção foi observada em animais adultos com mais de 4 anos de idade (44,73%). Não houve efeito significativo do sexo nas taxas de infecção. A análise filogenética de isolados egípcios de C. ovis mostrou uma similaridade muito próxima ao isolado da Nova Zelândia (AB731675). Este é o primeiro relato mostrando a análise genética de C. ovis no Egito, fornecendo uma ferramenta para taxonomia e diagnóstico definitivo de C. ovis, podendo ser útil para programas preventivo e de controle.


Subject(s)
Animals , Sheep Diseases/parasitology , Cysticercosis/veterinary , Sheep/parasitology , Electron Transport Complex IV/genetics , Cysticercus/genetics , Phylogeny , Sheep Diseases/epidemiology , Cysticercosis/epidemiology , Prevalence , Risk Factors , Abattoirs , Gene Expression Profiling , Cysticercus/isolation & purification , Egypt/epidemiology
3.
Braz. j. infect. dis ; 23(1): 40-44, Jan.-Feb. 2019. tab
Article in English | LILACS | ID: biblio-1001500

ABSTRACT

ABSTRACT Hepatitis E virus (HEV) infection is one of the major public health problems in developing countries. HEV can cause chronic infections in immunocompromised individuals e.g. thalassemic patients with increased risk of morbidity and mortality. In addition there is possibility of HEV transmission through blood transfusion. Therefore, the present study aimed to investigate the seroprevalence and risk factors of HEV infection in β-thalassemic children. Methods: This cross-sectional study was conducted on 140 Egyptian children suffering from β-thalassemia, attending the hematology outpatient clinic from April to October 2016. Serum samples from patients were collected and anti-HEV antibodies; Immunoglobulin G (IgG) and Immunoglobulin M (IgM)were measured by enzyme-linked immunosorbent assay (ELISA). Results: The seroprevalence of HEV in β-thalassemic chidren was relatively high (27.15%). Anti-HEV IgG prevalence was 24.29% while that of IgM was 2.86%. There was significant association between HEV infection and age, residence, liver enzymes and amount of blood transfusion per year. Conclusions: Thalasemic patients are vulnerable to chronicity and increased risk of morbidity and mortality from HEV infection. Frequent assessment of liver enzymes in thalassemic patients to monitor subclinical HEV is recommended. Close monitoring and HEV screening of blood donations should be taken in consideration. Public awareness about HEV endemicity, modes of transmission, and risk hazards especially in high risk group should be done to reduce the disease burden.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Blood Transfusion , Hepatitis E/transmission , Hepatitis E/epidemiology , beta-Thalassemia/epidemiology , beta-Thalassemia/virology , Enzyme-Linked Immunosorbent Assay , Seroepidemiologic Studies , Prevalence , Cross-Sectional Studies , Multivariate Analysis , Risk Factors , Sex Distribution , Age Distribution , Egypt/epidemiology , Hepatitis B Antibodies/blood , Immunocompetence
4.
J. pediatr. (Rio J.) ; 93(6): 619-624, Nov.-Dec. 2017. tab
Article in English | LILACS | ID: biblio-894074

ABSTRACT

Abstract Objective: To investigate blood lead levels in schoolchildren in two areas of Egypt to understand the current lead pollution exposure and its risk factors, aiming to improve prevention politicies. Subjects and method: This was a cross-sectional study in children (n = 400) aged 6-12 years recruited from two areas in Egypt (industrial and urban). Blood lead levels were measured using an atomic absorption method. Detailed questionnaires on sources of lead exposure and history of school performance and any behavioral changes were obtained. Results: The mean blood lead level in the urban area of Egypt (Dokki) was 5.45 ± 3.90 µg/dL, while that in the industrial area (Helwan) was 10.37 ± 7.94 µg/dL, with a statistically significant difference between both areas (p < 0.05). In Dokki, 20% of the studied group had blood lead levels ≥ 10 µg/dL, versus 42% of those in Helwan. A significant association was found between children with abnormal behavior and those with pallor with blood lead level ≥ 10 µg/dL, when compared with those with blood lead level < 10 µg/dL (p < 0.05). Those living in Helwan area, those with bad health habits, and those living in housing with increased exposure were at a statistically significantly higher risk of having blood lead level ≥ 10 µg/dL. Conclusion: Lead remains a public health problem in Egypt. High blood lead levels were significantly associated with bad health habits and housing with increased exposure, as well as abnormal behavior and pallor.


Resumo Objetivo: Investigar os níveis de chumbo no sangue (NCSs) em crianças em idade escolar em duas áreas do Egito para entender a atual exposição à poluição por chumbo e seus fatores de risco, para melhorar as políticas de prevenção. Indivíduos e método: Este foi um estudo transversal em crianças (400) entre 6-12 anos recrutadas de duas áreas no Egito (industrial e urbana). Os NCSs foram medidos por um método de absorção atômica. Foram obtidos questionários detalhados sobre as fontes de exposição ao chumbo e o histórico de desempenho escolar e quaisquer alterações comportamentais. Resultados: O NCS na área urbana do Egito (Dokki) foi de 5,45 ± 3,90 µg/dL, ao passo que na área industrial (Helwan) foi de 10,37 ± 7,94 µg/dL, com uma diferença significativa entre ambas as áreas (p < 0,05). Na área de Dokki, 20% do grupo estudado apresentaram NCSs ≥10 µg/dL, ao passo que na área de Helwan foi 42%. Foi encontrada uma associação significativa entre as crianças com comportamento anormal e aquelas com palidez com NCS ≥ 10 µg/dL, em comparação com aquelas com NCS < 10 µg/dL (p < 0,05). Aquelas que moram na área de Helwan, aquelas com hábitos de saúde ruins e aquelas que moram em moradias com maior exposição estiveram significativamente em alto risco de apresentar NCS ≥ 10 µg/dL. Conclusão: O chumbo ainda é um problema de saúde pública no Egito. Altos NCSs foram significativamente associados a hábitos de saúde ruins e moradia com maior exposição, bem como comportamento anormal e palidez.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Environmental Exposure/adverse effects , Lead/blood , Urban Population , Cross-Sectional Studies , Risk Factors , Egypt/epidemiology , Environmental Exposure/statistics & numerical data
5.
Braz. j. microbiol ; 46(3): 777-783, July-Sept. 2015. tab, ilus
Article in English | LILACS | ID: lil-755813

ABSTRACT

Vancomycin resistant Enterococcus faecium (VREF) ia an emerging and challenging nosocomial pathogen. This study aimed to determine the prevalence, risk factors and clonal relationships between different VREF isolates in the intensive care units (ICUs) of the university hospitals in our geographic location. This prospective study was conducted from July, 2012 until September, 2013 on 781 patients who were admitted to the ICUs of the Mansoura University Hospitals (MUHs), and fulfilled the healthcare-associated infection (HAI) criteria. Susceptibility testing was determined using the disk diffusion method. The clonal relationships were evaluated with pulsed field gel electrophoresis (PFGE). Out of 52 E. faecium isolates, 12 (23.1%) were vancomycin resistant. The significant risk factors for the VREF infections were: transfer to the ICU from a ward, renal failure, an extended ICU stay and use of third-generation cephalosporins, gentamicin, or ciprofloxacin. PFGE with the 12 isolates showed 9 different patterns; 3 belonged to the same pulsotype and another 2 carried a second pulsotypes. The similar pulsotypes isolates were isolated from ICUs of one hospital (EICUs); however, all of the isolates from the other ICUs had different patterns. Infection control policy, in conjunction with antibiotic stewardship, is important to combat VREF transmission in these high-risk patients.

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Subject(s)
Humans , Anti-Bacterial Agents/therapeutic use , Cross Infection/epidemiology , Enterococcus faecium/drug effects , Gram-Positive Bacterial Infections/epidemiology , Vancomycin Resistance/physiology , Vancomycin-Resistant Enterococci/isolation & purification , Vancomycin/therapeutic use , Cephalosporins/therapeutic use , Ciprofloxacin/therapeutic use , Cross Infection/microbiology , DNA, Bacterial/genetics , Egypt/epidemiology , Enterococcus faecium/isolation & purification , Gentamicins/therapeutic use , Gram-Positive Bacterial Infections/drug therapy , Gram-Positive Bacterial Infections/microbiology , Intensive Care Units , Infection Control/methods , Microbial Sensitivity Tests , Prospective Studies , Renal Insufficiency , Risk Factors , Vancomycin-Resistant Enterococci/drug effects
6.
Braz. j. microbiol ; 46(3): 799-805, July-Sept. 2015. tab
Article in English | LILACS | ID: lil-755823

ABSTRACT

Dermatophytes are keratinophilic fungi that infect keratinized tissues causing diseases known as dermatophytoses. Dermatophytes are classified in three genera, Epidermophyton, Microsporum, and Trichophyton. This investigation was performed to study the prevalence of dermatomycosis among 640 patients being evaluated at the dermatology clinics at Kasr elainy, El-Husein and Said Galal hospitals in Cairo and Giza between January 2005 and December 2006. The patients were checked for various diseases. Tinea capitis was the most common clinical disease followed by tinea pedis and tinea corporis. Tinea cruris and tinea unguium were the least in occurrence. Tinea versicolor also was detected. The most susceptible persons were children below 10 years followed by those aged 31–40 years. Unicellular yeast was the most common etiological agent and T. tonsuranswas the second most frequent causative agent followed by M. canis.

.


Subject(s)
Adolescent , Adult , Aged , Child , Child, Preschool , Female , Humans , Infant , Male , Middle Aged , Young Adult , Arthrodermataceae/isolation & purification , Onychomycosis/epidemiology , Tinea Capitis/epidemiology , Tinea Pedis/epidemiology , Tinea Versicolor/epidemiology , Egypt/epidemiology , Hospitals , Hair/microbiology , Keratins/metabolism , Nails/microbiology , Onychomycosis/microbiology , Skin/microbiology , Tinea Capitis/microbiology , Tinea Pedis/microbiology , Tinea Versicolor/microbiology
7.
Rev. Soc. Bras. Med. Trop ; 48(3): 272-277, May-Jun/2015. tab, graf
Article in English | LILACS | ID: lil-749866

ABSTRACT

INTRODUCTION: Leptospirosis is a re-emerging zoonotic disease of humans and animals worldwide. The disease is caused by pathogenic species of the genus Leptospira. These organisms are maintained in nature via chronic renal infection of carrier animals, which excrete the organisms in their urine. Humans become infected through direct or indirect exposure to infected animals and their urine or through contact with contaminated water and soil. This study was conducted to investigate Leptospira infections as a re-emerging zoonosis that has been neglected in Egypt. METHODS: Samples from 1,250 animals (270 rats, 168 dogs, 625 cows, 26 buffaloes, 99 sheep, 14 horses, 26 donkeys and 22 camels), 175 human contacts and 45 water sources were collected from different governorates in Egypt. The samples were collected from different body sites and prepared for culture, PCR and the microscopic agglutination test (MAT). RESULTS: The isolation rates of Leptospira serovars were 6.9%, 11.3% and 1.1% for rats, dogs and cows, respectively, whereas the PCR results revealed respective detection rates of 24%, 11.3% and 1.1% for rats, dogs and cows. Neither the other examined animal species nor humans yielded positive results via these two techniques. Only six Leptospira serovars (Icterohaemorrhagiae, Pomona, Canicola, Grippotyphosa, Celledoni and Pyrogenes) could be isolated from rats, dogs and cows. Moreover, the seroprevalence of leptospiral antibodies among the examined humans determined using MAT was 49.7%. CONCLUSIONS: The obtained results revealed that rats, dogs and cows were the most important animal reservoirs for leptospirosis in Egypt, and the high seroprevalence among human contacts highlights the public health implications of this neglected zoonosis. .


Subject(s)
Animals , Cattle , Dogs , Humans , Rats , Disease Reservoirs/veterinary , Leptospirosis/epidemiology , Leptospirosis/veterinary , Zoonoses/epidemiology , Agglutination Tests/veterinary , Antibodies, Bacterial/blood , Buffaloes , Camelus , Communicable Diseases, Emerging , Disease Reservoirs/statistics & numerical data , Equidae , Egypt/epidemiology , Leptospira/genetics , Leptospira/immunology , Leptospirosis/diagnosis , Polymerase Chain Reaction , Prevalence , Seroepidemiologic Studies , Sheep , Zoonoses/microbiology
8.
Rev. Soc. Bras. Med. Trop ; 48(3): 258-264, May-Jun/2015. tab, graf
Article in English | LILACS | ID: lil-749874

ABSTRACT

INTRODUCTION: Occult hepatitis B infection (OBI) is considered to be one of the major risks for patients suffering from end-stage renal disease (ESRD) on regular hemodialysis (HD) and patients with chronic hepatitis C virus (HCV) infection. This study compared the prevalence of OBI among these two high-risk groups in the Suez Canal region, Northeastern Egypt, to obtain a better national overview of the magnitude of OBI in this region. METHODS: Serum samples were collected from 165 HD patients and 210 chronic HCV-infected patients. Anti-HCV antibody, hepatitis B surface antigen (HBsAg), total hepatitis B core (anti-HBc) antibody, and hepatitis B surface antibody (anti-HBs) were detected by enzyme-linked immunosorbent assay (ELISA). HCV RNA was detected using a quantitative real-time RT-PCR assay, and HBV was detected using a nested PCR. RESULTS: All patients were negative for HBsAg. A total of 49.1% and 25.2% of the patients in the HD and HCV groups, respectively, were anti-HBc-positive. In addition, more anti-HBs-positive patients were detected in the HD group compared to the HCV group (52.1% and 11.4%, respectively). Three cases were positive for HBV DNA in the HD group, while eighteen positive cases were detected in the HCV group. Both study groups showed significant differences in serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) level as well as anti-HBc, anti-HBs and HBV-DNA positivity. CONCLUSIONS: OBI was more prevalent among chronic HCV patients than HD patients in the Suez Canal region, Egypt, with rates of 8.5% and 1.8%, respectively. However, more precise assessment of this infection requires regular patient follow-up using HBV DNA detection methods. .


Subject(s)
Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Young Adult , Hepatitis B/epidemiology , Hepatitis C, Chronic/epidemiology , Renal Dialysis/statistics & numerical data , DNA, Viral/analysis , Enzyme-Linked Immunosorbent Assay , Egypt/epidemiology , Hepatitis B Antibodies/blood , Hepatitis B Surface Antigens/blood , Hepatitis B virus/genetics , Hepatitis B virus/immunology , Hepatitis B/complications , Hepatitis B/diagnosis , Hepatitis C, Chronic/complications , Kidney Failure, Chronic/therapy , Polymerase Chain Reaction , Prevalence , Renal Dialysis/adverse effects
10.
J. pediatr. (Rio J.) ; 91(1): 93-97, Jan-Feb/2015. tab, graf
Article in English | LILACS | ID: lil-741572

ABSTRACT

OBJECTIVE: To assess children with myocarditis, the frequency of various presenting symptoms, and the accuracy of different investigations in the diagnosis. METHODS: This was an observational study of 63 patients admitted to PICU with non-cardiac diagnosis. Cardiac enzymes, chest-X ray, echocardiography, and electrocardiogram were performed to diagnose myocarditis among those patients. RESULTS: There were 16 cases of definite myocarditis. The age distribution was non-normal, with median of 5.5 months (3.25-21). Of the 16 patients who were diagnosed with myocarditis, 62.5% were originally diagnosed as having respiratory problems, and there were more females than males. Among the present cases, the accuracy of cardiac enzymes (cardiac troponin T [cTn] and creatine phosphokinase MB [CKMB]) in the diagnosis of myocarditis was only 63.5%, while the accuracy of low fractional shortening and of chest-X ray cardiomegaly was 85.7 and 80.9%; respectively. Cardiac troponin folds 2.02 had positive predictive value of 100%, negative predictive value of 88.7%, specificity of 100%, sensitivity of 62.5%, and accuracy of 90.5%. CONCLUSIONS: Children with myocarditis present with symptoms that can be mistaken for other types of illnesses. When clinical suspicion of myocarditis exists, chest-X ray and echocardiography are sufficient as screening tests. Cardiac troponins confirm the diagnosis in screened cases, with specificity of 100%. .


OBJETIVO: Determinar as crianças com miocardite, a frequência de sintomas apresentados e a precisão de investigações no diagnóstico. MÉTODOS: Estudo observacional de 63 pacientes internados na UTIP com diagnóstico de problemas não cardíacos. Os exames de enzimas cardíacas, raios-X do tórax, ecocardiograma e eletrocardiograma (ECG) foram feitos para diagnosticar miocardite entre os pacientes. RESULTADOS: Houve 16 casos de miocardite definida. A distribuição etária não foi normal, com média de 5,5 meses (3,25-21). Dos 16 pacientes, 62,5% foram originalmente diagnosticados com problemas respiratórios e a mulheres estavam em maior número do que os homens. Dentre nossos casos, a precisão das enzimas cardíacas (cTn e CKMB) no diagnóstico da miocardite foi de apenas 63,5%, apesar de a precisão da baixa fração de encurtamento (FS) e dos raios-X de tórax que revelaram cardiomegalia ter sido 85,7% e 80,9%; respectivamente. A troponina cardíaca em 2,02 vezes apresentou valor preditivo positivo = 100%, valor preditivo negativo = 88,7%, especificidade = 100%, sensibilidade = 62,5% e precisão = 90,5%. CONCLUSÕES: As crianças com miocardite apresentam sintomas que podem ser confundidos com outros tipos de doenças. Quando há suspeita clínica de miocardite, raios-X de tórax e ecocardiografia são testes de rastreamento suficientes. As troponinas cardíacas confirmam o diagnóstico em casos examinados, com especificidade de 100%. .


Subject(s)
Female , Humans , Infant , Male , Myocarditis/diagnosis , Creatine Kinase, MB Form/blood , Diagnosis, Differential , Electrocardiography , Egypt/epidemiology , Intensive Care Units, Pediatric , Length of Stay/statistics & numerical data , Myocarditis/mortality , Prevalence , Sensitivity and Specificity , Survival Rate , Troponin T/blood
11.
Article in English | IMSEAR | ID: sea-162095

ABSTRACT

Introduction: Current treatments for AML have not changed for several decades and have not resulted in satisfactory outcomes. Modulating the immune system may improve survival in AML patient. Increasing evidence shows that Treg cell may play an important role in immune evasion mechanisms employed by cancer Th is work was designed to measure the frequency of regulatory cells T cells (Treg(in newly diagnosed adult acute myeloid leukemia patients (AML) and to correlate its percent with cytogenetic study and clinical outcome. Material and methods: Th is study was conducted on 50 subjects divided into two groups: 25 AML cases(group 1) admitted to Hematology Unit, Alexandria Main University Hospital, Egypt and 25 healthy subjects(group 2) of matched age and sex. Detection of Treg was done to both groups by Multi-Color Flow Cytometry Kit. Results: Treg value was higher in AML patients at diagnosis compared to healthy controls. No signifi cant diff erence was present in the percent of Treg between the patients with normal and abnormal karyotype. Patients who achieved complete response after induction chemotherapy had lower Treg percent compared to those with persistent leukemia. Conclusion: From this study we can conclude that higher pretreatment Treg percentage may be a poor predictor to response to induction therapy.


Subject(s)
Adult , Egypt/epidemiology , Female , Flow Cytometry/methods , Humans , Leukemia, Myeloid, Acute/diagnosis , Leukemia, Myeloid, Acute/epidemiology , Male , Middle Aged , Prognosis , T-Lymphocytes, Regulatory/diagnosis , T-Lymphocytes, Regulatory/immunology , Young Adult
12.
Indian J Hum Genet ; 2013 Oct-Dec ;19 (4): 472-474
Article in English | IMSEAR | ID: sea-156617

ABSTRACT

A romatase excess syndrome (AEXS) is a rare autosomal dominant disorder characterized by prepubertal gynecomastia, it responds well to medical treatment. In the absence of prompt suspicion, it can expose the patient to the risk of unnecessary surgical intervention. Up to our best knowledge, the association between AEXS and neurofibromatosis type 1 (NF1) was not reported before. Here, we describe a AEXS presenting with prepubertal gynecomastia in an Egyptian child with NF1 that improved with aromatase inhibitors.


Subject(s)
Aromatase/genetics , Child, Preschool , Egypt/epidemiology , Gynecomastia/epidemiology , Gynecomastia/etiology , Gynecomastia/genetics , Humans , Male , Neurofibromatoses/epidemiology , Neurofibromatoses/genetics
14.
Rev. bras. parasitol. vet ; 22(3): 323-330, Jul-Sep/2013. tab, graf
Article in English | LILACS | ID: lil-688708

ABSTRACT

Cerebral parasitic cysts constitute a major problem for livestock. Among these, coenurosis and toxoplasmosis are predominant. Here, a total number of 60 sheep obtained from a private farm in Suez province, Egypt, were examined postmortem to detect visible parasitic cysts, and microscopically to detect small-sized entities. Necropsy revealed bladder-like cysts measuring 0.5-6.5 cm in diameter that were filled with a translucent fluid containing a large number of protoscolices. Accordingly, the cysts were identified as the metacestode Coenurus cerebralis. Among the sheep examined, 11 animals (7 males and 4 females) (18.3%) were infected. Most of the cysts were located in the cerebral hemispheres, with numbers ranging from one to three per infected animal. The effect of the presence of cysts in the brain tissue was evaluated. Histopathologically, pseudocysts of the apicomplexan Toxoplasma gondii were found in two animals with no detectable inflammatory cell reactions. In conclusion, coenurosis and toxoplasmosis are serious parasitic problems that play a significant role in sheep management in Egypt, as a result of close contact between livestock and dogs and cats, which play a critical role in the life cycle of these parasites.


Cistos cerebrais parasitários constituem um grande problema para o gado. Entre estes, coenurosis e toxoplasmose são predominantes. Aqui, um número total de 60 ovelhas obtidas em uma fazenda particular na província Suez, Egito, foram examinadas post-mortem para a detecção de cistos parasitários visíveis e microscopicamente para detectar cistos de pequenas dimensões. A necropsia revelou cistos medindo entre 0,5-6,5 cm de diâmetro, preenchidos com um fluido transparente, contendo um grande número de protoscolices. Por conseguinte, os cistos foram identificados como o metacestóide Coenurus cerebralis. Entre as ovelhas examinadas, 11 animais (7 machos e 4 fêmeas) (18,3%) estavam infectados. A maior parte dos cistos estavam localizados nos hemisférios cerebrais, com números variando de um a três em ovinos infectados. O efeito da presença de cistos no tecido do cérebro foi avaliado. Histopatologicamente, pseudocistos de Toxoplasma gondii foram encontrados em dois animais sem reações inflamatórias detectáveis. Em conclusão, coenurosis e toxoplasmose são graves problemas parasitários que desempenham um papel significativo no manejo de ovelhas no Egito, como resultado do contacto íntimo dos animais com os cães e gatos, que desempenham um papel crítico no ciclo de vida desses parasitas.


Subject(s)
Animals , Female , Male , Brain Diseases/veterinary , Central Nervous System Parasitic Infections/veterinary , Cestode Infections/veterinary , Sheep Diseases/diagnosis , Toxoplasmosis, Animal/diagnosis , Brain Diseases/diagnosis , Brain Diseases/epidemiology , Brain Diseases/parasitology , Central Nervous System Parasitic Infections/diagnosis , Central Nervous System Parasitic Infections/epidemiology , Cestode Infections/diagnosis , Cestode Infections/epidemiology , Epidemiological Monitoring , Egypt/epidemiology , Sheep , Sheep Diseases/epidemiology , Sheep Diseases/pathology , Toxoplasmosis, Animal/epidemiology
15.
Indian J Hum Genet ; 2013 Apr; 19(2): 150-153
Article in English | IMSEAR | ID: sea-149421

ABSTRACT

OBJECTIVE: This cross-sectional study was undertaken to construct the new body fat % curve and provide body composition reference data for adolescent girls with Turner syndrome (TS). They diagnosed cytogenetically by blood karyotyping and not treated with growth hormone (GH). MATERIALS AND METHODS: The study included 70 TS girls from age 13 years to age 17 years. Body composition was measured by bioelectrical impedance. Smoothed centile charts were derived by using the least mean square (LMS) method. RESULTS: The new body fat curves reflect the increase of body fat mass (FM) from age 13 years to age 17 years. Body FM % of Egyptian TS girls was lower when compared with age-matched American untreated TS girls. CONCLUSION: This study presents the new body fat curves and reference values of body composition for untreated Egyptian TS adolescent girls. The present charts can be used for direct assessment of body FM % for Egyptian TS girls and evaluation for cases on GH treatment or other growth promoting therapy.


Subject(s)
Adolescent , Body Composition , Egypt/epidemiology , Female , Humans , Turner Syndrome/cytology , Turner Syndrome/diagnosis , Turner Syndrome/epidemiology , Turner Syndrome/genetics
16.
Indian J Med Microbiol ; 2012 Oct-Dec; 30(4): 442-447
Article in English | IMSEAR | ID: sea-144007

ABSTRACT

Purpose: To characterize the prevalence of plasmid-mediated quinolone resistance determinants qnr, aac(6′)-Ib-cr and qep in extended-spectrum β-lactamase (ESBL) -producing E. coli and to determine the association of these determinants with CTX-M group in Cairo, Egypt. Materials and Methods: MICs of 15 antimicrobial agents against 70 E. coli clinical isolates were determined using agar dilution technique according to CLSI. Screening for the qnrA, qnrB, qnrS, aac(6′)-Ib, qep and CTX-M genes was carried out by PCR amplification and DNA sequencing. Curing was used to confirm whether qnr, aac(6′)-Ib, qep or ESBL-encoding genes were located on plasmids. Results: Out of 70 E. coli clinical isolates, 61 were resistant to at least one antibiotic, 16 (22.8%) were multidrug resistant and 30 (42%) were ESBL producers. Out of 30 ESBL producers E. coli isolates, 8 (26.6%) were positive for qnr genes, and the qnrA1-, qnrB1-and qnrS1-type genes were detected alone or in combination in 5 (16.6%), 7 (23.3%) and 5 (16.6%) isolates, respectively. Seven (23.3%) isolates were positive for aac(6′)-Ib-cr and only two (6.6%) isolates were positive for qepA4. Loss of all plasmids upon curing suggested that qnr, aac(6′)-Ib-cr , qep A4 and ESBL-encoding genes were always plasmid mediated. Out of 8 Qnr positive isolates 5 were associated with both CTX-M-1 and CTX-M-9 while 2 from 6 aac(6′)-Ib-cr positive isolates were associated with both CTX-M-1 and CTX-M-9. Conclusions: This study highlights the prevalence of quinolone resistance determinants qnr, aac(6′)-Ib-cr , qep A4 associated with CTX-M positive E. coli isolates from Egypt. This is the first report of the plasmid mediated fluoroquinolone efflux pump, Qep A from Egypt.


Subject(s)
Anti-Bacterial Agents/pharmacology , DNA, Bacterial/genetics , Drug Resistance, Bacterial , Drug Resistance, Bacterial , Egypt/epidemiology , Escherichia coli/drug effects , Escherichia coli Infections/epidemiology , Escherichia coli/genetics , Escherichia coli Infections/microbiology , Humans , Microbial Sensitivity Tests , Plasmids , beta-Lactamases/genetics
17.
Article in English | WPRIM | ID: wpr-223075

ABSTRACT

A total of 450 stool samples were collected from inpatient and outpatient clinics of Pediatric Department, Minia University Hospital, Minia District, Egypt. Two groups of patients were studied, including 200 immunosuppressed and 250 immunocompetent children. Stool samples were subjected to wet saline and iodine mounts. A concentration technique (formol-ether sedimentation method) was carried out for stool samples diagnosed negative by wet saline and iodine mounts. Samples were stained by 2 different methods; acid fast stain (modified Ziehl-Neelsen stain) and Giemsa stain. Total 188 cases (94%) were diagnosed positive for parasitic infections among immunosuppressed children, whereas 150 cases (60%) were positive in immunocompetent children (P<0.0001). The most common protozoan infection in immunosuppressed group was Cryptosporidium parvum (60.2%), followed by Blastocystis hominis (12.1%), Isospora belli (9.7%), and Cyclospora caytenensis (7.8%). On the other hand, Entamoeba histolytica (24.6%) and Giardia lamblia (17.6%) were more common than other protozoans in immunocompetent children.


Subject(s)
Animals , Child , Child, Preschool , Cross-Sectional Studies , Egypt/epidemiology , Feces/parasitology , Female , Helminthiasis/epidemiology , Helminths/classification , Humans , Immunocompromised Host , Male , Opportunistic Infections/epidemiology , Parasites/classification , Protozoan Infections/epidemiology
18.
Indian J Pathol Microbiol ; 2011 Apr-Jun 54(2): 299-306
Article in English | IMSEAR | ID: sea-141983

ABSTRACT

Introduction and Aim of Work: Central nervous system (CNS) tumors represent a major public health problem, and their epidemiological data in Egypt have been rather incomplete except for some regional reports. There are no available frequency-based data on CNS tumors in our locality. The objective of this study was to estimate the frequency of CNS tumors in east delta region, Egypt. Materials and Methods: The data were collected during the 8-year period from January 1999 to December 2007 from Pathology Department, Mansoura University, and other referred pathology labs. Examination of HandE stained sections from retrieved paraffin blocks were done in all cases for histopathologic categorization of C.N.S. tumors. Immunohistochemical studies were applied to confirm final histopathologic diagnosis in problematic cases. Results: Intracranial tumors represented 86.7% of cases in comparison to only 13.3% for spinal tumors. Gliomas were the CNS tumors of the highest frequency (35.2%), followed by meningioma (25.6%), pituitary adenoma (11.6%) and nerve sheath tumors (6.6%). 10.25% of tumors were of children <15 years. Conclusion: This study provides the largest series of the relative frequency of CNS tumors in Delta region in Egypt till now and may help to give insight into the epidemiology of CNS tumors in our locality.


Subject(s)
Adolescent , Adult , Age Distribution , Aged , Aged, 80 and over , Brain Neoplasms/epidemiology , Brain Neoplasms/pathology , Child , Child, Preschool , Egypt/epidemiology , Female , Glioma/epidemiology , Glioma/pathology , Histocytochemistry , Humans , Immunohistochemistry , Infant , Male , Meningioma/epidemiology , Meningioma/pathology , Microscopy , Middle Aged , Nerve Sheath Neoplasms/epidemiology , Nerve Sheath Neoplasms/pathology , Pituitary Neoplasms/epidemiology , Pituitary Neoplasms/pathology , Prevalence , Spinal Neoplasms/epidemiology , Spinal Neoplasms/pathology , Young Adult
19.
Indian J Hum Genet ; 2010 Sept; 16(3): 119-126
Article in English | IMSEAR | ID: sea-138910

ABSTRACT

BACKGROUND AND OBJECTIVES: Recombinant human growth hormone (rhGH) is approved for use in children with Turner’s syndrome (TS) in most industrialized countries and is recommended in the recently issued guidelines. We determined the growth responses of girls who are treated with rhGH for TS, with an aim to identify the predictors of growth response. MATERIALS AND METHODS: Fifty-six prepubertal girls with TS, documented by peripheral blood karyotype, were enrolled. All the patients received biosynthetic growth hormone therapy with a standard dose of 30 IU/m2/week. The calculated dose per week was divided for 6 days and given subcutaneously at night. RESULTS: This study showed that rhGH therapy provides satisfactory auxological results. Bone age delay is to be considered as a predictive factor which may negatively influence the effect of rhGH therapy on final height. The growth velocity in the preceding year is the most important predictor of rhGH therapy response. CONCLUSION: These observations help us to guide rhGH prescription, to reduce the risks and costs.


Subject(s)
Age Determination by Skeleton/methods , Child , Egypt/epidemiology , Female , Human Growth Hormone/administration & dosage , Human Growth Hormone/genetics , Human Growth Hormone/therapeutic use , Humans , Puberty , Turner Syndrome/epidemiology , Turner Syndrome/drug therapy , Turner Syndrome/genetics
20.
Indian J Hum Genet ; 2010 May; 16(2): 87-93
Article in English | IMSEAR | ID: sea-138904

ABSTRACT

BACKGROUND AND AIMS: Hepatocellular carcinoma (HCC) is a very common and highly malignant tumor, associated mainly with chronic viral hepatitis, cirrhosis of any cause, aflatoxin exposure and ethanol consumption. Cytogenetic analysis on HCC has been limited because of poor hepatocyte growth in vitro. Conventional cytogenetic studies have demonstrated frequent abnormalities of specific chromosomes in HCC. Molecular cytogenetic approaches have been applied only rarely in the characterization of HCC. The main aim of this study was to evaluate genetic aberrations of different chromosomes in HCC. The study included 35 patients with HCC, who have been diagnosed and treated at National Cancer Institute, Cairo University, Egypt. The clinico-pathologic features of the studied patient were collected from patient’s files. MATERIALS AND METHODS: Interphase cytogenetics by fluorescence in situ hybridization with the use of a panel of centromere-associated DNA probes for chromosomes 1, 4, 8, 9, 13, 17, 20 and Y were performed on paraffin-embedded HCC specimens. RESULTS: The most common chromosomal aberrations detected were gain of chromosomes 8 in 12 cases (34.28%), 17 in 6 cases (17.14%). Loss of chromosome Y was detected in 6 of male cases (30%). Monosomy 4 was also detected in 5 cases (14.28%). Negative correlation could be detected only between chromosome 4 and 8. (r = -0.381, P < 0.05). Correlations between gain or loss of chromosomes and the different clinicopathologic parameters in the patients investigated, indicated negative correlation between: chromosome Y and age and chromosome 1 and cirrhosis. CONCLUSION: Gains and losses of DNA found in this study probably involve oncogenes and tumor suppressor genes that play a role in the puzzle of hepatocarcinogenesis.


Subject(s)
Carcinoma, Hepatocellular/diagnosis , Carcinoma, Hepatocellular/epidemiology , Chromosome Aberrations/genetics , Cytogenetics/methods , Egypt/epidemiology , Hepatitis, Viral, Human/complications , Humans , In Situ Hybridization, Fluorescence/methods , Liver Cirrhosis/complications , Patients
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