Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 23
Filtrar
1.
Egypt Heart J ; 73(1): 77, 2021 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-34478001

RESUMO

BACKGROUND: Cardiovascular system involvement in coronavirus disease-2019 (COVID-19) has gained great interest in the scientific community. MAIN BODY: Several studies reported increased morbidity and mortality among COVID-19 patients who had comorbidities, especially cardiovascular diseases like hypertension and acute coronary syndrome (ACS). COVID-19 may be associated with cardiovascular complications as arrhythmia, myocarditis, and thromboembolic events. We aimed to illustrate the interactions of COVID-19 disease and the cardiovascular system and the consequences on clinical decision as well as public health. CONCLUSIONS: COVID-19 has negative consequences on the cardiovascular system. A high index of suspicion should be present to avoid poor prognosis of those presenting with unusual presentation.

2.
J Orthod Sci ; 9: 19, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33354545

RESUMO

OBJECTIVES: To develop and test the validity and reliability of an Arabic version of the psychosocial impact of dental aesthetics questionnaire (PIDAQ). MATERIALS AND METHODS: The original English version was translated into Arabic, back-translated, pre-tested, and cross-culturally adapted before being administered to 205 individuals aged between 18-30 years from Medina, Saudi Arabia. Cronbach's alpha coefficient was used to test internal consistency, and the intraclass correlation coefficient (ICC) was used to assess test-retest reliability. Construct validity was assessed using factor analysis, and convergent validity was tested by comparing PIDAQ scores to the aesthetic components of the Dental Aesthetic Index (DAI) and Aesthetic Component of the Index of Orthodontic Treatment Need (IOTN-AC), while discriminant validity was assessed by comparing PIDAQ scores to participants' self-evaluation of orthodontic treatment need. Gender and age differences in the PIDAQ score were assessed. RESULTS: Cronbach's alpha coefficient was 0.940, corrected item-total correlation coefficients were between 0.509 and 0.719, and the ICC was 0.937. Principal component factor analysis extracted three domains, and factor loading ranged from 0.563 to 0.843. Total PIDAQ score and subscale scores had significant correlations with the DAI and IOTN-AC. The questionnaire discriminated well between participants who had a perceived need for orthodontic treatment and those with no perceived need. There were no significant age or gender differences in participants' PIDAQ scores. CONCLUSIONS: The Arabic version of the PIDAQ had excellent psychometric properties with sufficient reliability and validity to be used for the assessment of the orthodontic-related quality of life in young Arab adults.

3.
AIMS Public Health ; 7(4): 844-853, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33294486

RESUMO

BACKGROUND: Burnout is a common psychosocial phenomenon among nursing. It has been attributed to prolonged exposure to stress in the work place. This study aimed to determine the prevalence and associated factors of burnout among nurses in the primary health care centers in Saudi Arabia. METHODS: This cross-sectional study was conducted among 200 nurses by using a self-administered questionnaire. Maslach Burnout Inventory-Human Services Survey (MBI-HSS) was used to measure burnout. RESULTS: Most participants were females (73.0%) and aged ≤35 years (52.0%). About 39% had high emotional exhaustion, 38% had high depersonalization and 85.5% had low personal accomplishment. About 89% (178) scored high at least on one subscale of burnout. Burnout was associated with age, educational level and sources of stress in the workplace. CONCLUSION: Level of burnout among nurses was high and was associated mainly with stressors in the workplace. Improving work environment and management of stress in the workplace should be a priority to minimize burnout among nurses.

4.
Oral Dis ; 26(7): 1548-1557, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32367561

RESUMO

AIM: This study aimed to provide evidence on the impact of chronic periodontitis (CP) on the severity of erectile dysfunction (ED) through the assessment of the salivary level of tumor necrosis factor-alpha (TNF-α). METHODS: 140 patients with chronic periodontitis and erectile dysfunction were enrolled in this study and then randomly allocated to the control group (70 participants received delayed periodontal treatment) or test group (70 participants were subjected to immediate periodontal therapy). The assessment of the clinical and serological outcomes was done at baseline and 3 months postoperatively. This included pocket depth (PD), visible plaque, clinical attachment level (CAL), bleeding on probing (BOP), level of tumor necrosis factor-alpha (TNF-α), and the severity of erectile dysfunction. Periodontal therapy consists of oral hygiene instructions and single-visit scaling and root planing. RESULTS: There were no significant differences regarding the serological and clinical outcomes at baseline between the two groups (p > .05). At 3-month follow-up, the PD, BOP, CAL, and visible dental plaque means in the control group were significantly higher than those in the test group (PD: 4.94 ± 0.647 mm vs. 4.25 ± 0.619 mm; BOP: 49.03 ± 29.98 vs. 6.20 ± 7.14; CAL: 4.96 ± 0.631 mm vs. 4.31 ± 0.591 mm; visible dental plaque: 48.49 ± 30.07 vs. 5.83 ± 6.51) (p = .00). Compared with baseline findings, both groups showed significant reductions in TNF-α in serum, salivary TNF-α, and severity of erectile dysfunction (p < .001). CONCLUSION: The non-surgical periodontal therapy could significantly improve the severity of erectile dysfunction in addition to periodontal and serological parameters. Salivary TNF-α could be used as a new diagnostic tool to detect the severity of erectile dysfunction.


Assuntos
Periodontite Crônica , Disfunção Erétil , Periodontite Crônica/complicações , Periodontite Crônica/terapia , Índice de Placa Dentária , Raspagem Dentária , Disfunção Erétil/diagnóstico , Disfunção Erétil/etiologia , Disfunção Erétil/terapia , Seguimentos , Humanos , Masculino , Perda da Inserção Periodontal , Índice Periodontal , Aplainamento Radicular , Fator de Necrose Tumoral alfa
5.
J Taibah Univ Med Sci ; 14(2): 179-186, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31555070

RESUMO

OBJECTIVES: Dental caries are associated with high counts of Streptococcus mutans (SM) and Lactobacillus (LB) and low saliva buffering capacity (BC). This study aimed to evaluate the antimicrobial activity of black tea on salivary cariogenic microflora, SM and LB species in an adult population. Antimicrobial activity was measured from the number of colony forming units (CFUs) of SM and LB, and BC of saliva. METHODS: In this prospective experimental study, unstimulated saliva samples were acquired from the participants before, immediately after, and 1 h after drinking tea by collecting saliva in sterilised containers. Samples were taken to the laboratory for incubation and subsequent counting. SM and LB counts and BC of saliva were calculated using the caries risk test (CRT). RESULTS: A total of 21 participants, 13 males and 8 females, with a mean age of 32.6 ± 8.02, were recruited in this study. Black tea had no significant effect on reducing the cariogenic bacterial counts (p > 0.05). CONCLUSION: Based on this study, it can be deduced that black tea exhibits an insignificant antimicrobial effect against Streptococcus mutans and Lactobacillus bacteria.

6.
East Mediterr Health J ; 23(7): 461-468, 2017 Aug 27.
Artigo em Inglês | MEDLINE | ID: mdl-28853129

RESUMO

Ethical and regulatory oversight of research may be suboptimal in low- and middle-income countries. To determine patients' attitudes and perceptions toward research participation and perceptions of their rights, we recruited 202 participants from hospitals in Egypt, Lebanon, Saudi Arabia and Sudan and asked them to complete a questionnaire assessing attitudes and perceptions. Around 20% believed that doctors sometimes perform research on patients without their knowledge and 35% believed that if participants withdrew from the research they would not receive good medical care. Over 85% believed that they should have rights regarding confidentiality of data, free medical care if injured during the research and asking questions. Almost half believed they have a right to withdraw without penalty and around 75% believed they could make complaints without fear of harm. Those who were illiterate or unemployed were less likely to appreciate their rights compared with their counterparts.


Assuntos
Atitude , Países em Desenvolvimento , Percepção , Sujeitos da Pesquisa/psicologia , Adulto , África , Fatores Etários , Confidencialidade/normas , Estudos Transversais , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Pessoa de Meia-Idade , Oriente Médio , Qualidade da Assistência à Saúde/normas , Fatores Sexuais , Fatores Socioeconômicos
7.
Int J Med Inform ; 87: 84-90, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26806715

RESUMO

Achieving a balance between giving access to information and respecting donors' confidentiality is a crucial issue for any biobank, with its large number of samples and associated information. Despite the existence of much empirical literature on confidentiality, there are too few surveys in the Middle East about the topic, particularly in the Saudi context. A survey was conducted of 200 respondents at King Abdulaziz Medical City in Riyadh, Saudi Arabia, among 5 groups of equal size, comprised of researchers, physicians, medical students, donors and laypersons, respectively. The majority of participants agreed that confidentiality is an important issue and that it is well protected in the Saudi biobank. All 5 groups showed different attitudes toward disclosing information to various third parties. They were in favor of allowing treating physicians, and to a certain extent family members, to have access to medical and genetic results from research. No significant differences were found between views on medical and genetic confidentiality. The majority of respondents agreed that confidentiality might be breached in cases with specific justified reasons. Even considering differences in religion, culture and other factors, the results of the study were consistent with those reported in the literature and research conducted in other countries. We therefore place emphasis on the importance of protecting and promoting patient/donor confidentiality and privacy.


Assuntos
Atitude , Bancos de Espécimes Biológicos/ética , Pesquisa Biomédica/ética , Confidencialidade/ética , Privacidade Genética/ética , Prontuários Médicos , Acesso à Informação , Adolescente , Adulto , Bancos de Espécimes Biológicos/normas , Feminino , Humanos , Consentimento Livre e Esclarecido , Masculino , Pessoa de Meia-Idade , Arábia Saudita , Inquéritos e Questionários , Adulto Jovem
8.
Genet Med ; 18(8): 806-13, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-26656650

RESUMO

PURPOSE: The aim of this study was to investigate the ethical issues involved in children's participation in research biobanks in Saudi Arabia and the Middle East. METHODS: A survey of 160 respondents from four groups (researchers, physicians, medical students, and laypersons) was conducted at King Abdulaziz Medical City in Riyadh, Saudi Arabia. RESULTS: A clear and positive attitude toward pediatric clinical and genetic research inside and outside of Saudi Arabia was found. Parental consent is viewed as essential, with 60% saying parental consent is sufficient for children up to 12, and 40% saying it is sufficient for children 12-18 years old. More than 90% of respondents preferred to gain approval from any child with a decision-making capability; 58.2 and 38.6% of them believed that children between 12 and 18, and >18 years of age, respectively, can understand and thus give their approval for genetic research. Clear majorities in the study agreed with re-consenting children when they become adults, allowing them to withdraw at any time. A clear majority agreed that either parent could sign a consent form for their child to participate in a research biobank. CONCLUSION: All four groups believed, to varying degrees, that elements of ethical consideration were critical when involving children in research.Genet Med 18 8, 806-813.


Assuntos
Bancos de Espécimes Biológicos/ética , Pesquisa em Genética/ética , Consentimento Informado por Menores , Participação do Paciente , Adolescente , Criança , Estudos Transversais , Tomada de Decisões , Feminino , Humanos , Masculino , Consentimento dos Pais/estatística & dados numéricos , Arábia Saudita , Inquéritos e Questionários
9.
Saudi Med J ; 36(8): 973-9, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26219449

RESUMO

OBJECTIVES: To assess the prevalence of both impaction and associated pathosis in a Saudi population in Al-Madinah, Saudi Arabia based on digital panoramic radiographs. METHODS: This study was carried out from December 2013 to February 2015. Panoramic radiographs of 359male patients attending the Oral Diagnosis Clinics, Faculty of Dentistry, Taibah University, Al-Madinah, Saudi Arabia were reviewed. All images were evaluated to determine the prevalence and pattern of impacted third molars and canines, and associated pathosis. RESULTS: Among 359 panoramic radiographs examined, 124 patients had impacted teeth. The impacted mandibular third molars were the most prevalent impacted teeth, 77.6% had class II pattern of impaction. Among the impacted maxillary canines, 75% were mesioangular and among 66 impacted maxillary third molars, 63.6% had class C. Our study showed that 5.8% of Saudi patients had 3 or more impacted teeth, 13.1% had 2 impacted teeth, and 15.6% had one impacted tooth. Associated pathosis was found in 18.2% among impacted maxillary third molars, and 31.5% among impacted mandibular third molars. The incidence of impaction decreases with age.  CONCLUSION: The prevalence and pattern of impacted third molars among Saudis are almost similar to other racial populations. The number of missing wisdom increases with age. Although the percentage of pathosis associated with impaction was considerably low, it is essential to carry you regular oral examinations to preserve asymptomatic impacted teeth in good health.


Assuntos
Dente Impactado/diagnóstico por imagem , Dente Impactado/epidemiologia , Adulto , Distribuição por Idade , Dente Canino/diagnóstico por imagem , Humanos , Masculino , Dente Serotino/diagnóstico por imagem , Prevalência , Radiografia Panorâmica , Estudos Retrospectivos , Arábia Saudita/epidemiologia , Adulto Jovem
10.
Dev World Bioeth ; 15(3): 199-207, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24894063

RESUMO

Recently, training programs in research ethics have been established to enhance individual and institutional capacity in research ethics in the developing world. However, commentators have expressed concern that the efforts of these training programs have placed 'too great an emphasis on guidelines and research ethics review', which will have limited effect on ensuring ethical conduct in research. What is needed instead is a culture of ethical conduct supported by national and institutional commitment to ethical practices that are reinforced by upstream enabling conditions (strong civil society, public accountability, and trust in basic transactional processes), which are in turn influenced by developmental conditions (basic freedoms of political freedoms, economic facilities, social opportunities, transparency guarantees, and protective security). Examining this more inclusive understanding of the determinants of ethical conduct enhances at once both an appreciation of the limitations of current efforts of training programs in research ethics and an understanding of what additional training elements are needed to enable trainees to facilitate national and institutional policy changes that enhance research practices. We apply this developmental model to a training program focused in Egypt to describe examples of such additional training activities.


Assuntos
Revisão Ética/normas , Ética em Pesquisa , Países em Desenvolvimento , Educação , Egito , Humanos
11.
Urol Oncol ; 32(1): 47.e15-20, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24035474

RESUMO

BACKGROUND: Bladder cancer is the most prevalent form of cancer in men among Egyptians, for whom tobacco smoke exposure and Schistosoma haematobium (SH) infection are the major risk factors. We hypothesized that functional polymorphisms in NAD(P)H: quinone oxidoreductase 1 (NQO1) and superoxide dismutase 2 (SOD2), modulators of the effects of reactive oxidative species, can influence an individual's susceptibility to these carcinogenic exposures and hence the risk of bladder cancer. METHODS: We assessed the effects of potential interactions between functional polymorphisms in the NQO1 and SOD2 genes and exposure to smoking and SH infection on bladder cancer risk among 902 cases and 804 population-based controls in Egypt. We used unconditional logistic regression to estimate the odds ratios (OR) and confidence intervals (CI) 95%. RESULTS: Water pipe and cigarette smoking were more strongly associated with cancer risk among individuals with the TT genotype for SOD2 (OR [CI 95%] = 4.41 [1.86-10.42]) as compared with those with the CC genotype (OR [CI 95%] = 2.26 [0.97-6.74]). Conversely, the risk associated with SH infection was higher among the latter (OR [CI 95%] = 3.59 [2.21-5.84]) than among the former (OR [CI 95%] = 1.86 [1.33-2.60]). Polymorphisms in NQO1 genotype showed a similar pattern, but to a much lesser extent. The highest odds for having bladder cancer following SH infection were observed among individuals with the CC genotypes for both NQO1 and SOD2 (OR [CI 95%] = 4.41 [2.32-8.38]). CONCLUSION: Our findings suggest that genetic polymorphisms in NQO1 and SOD2 play important roles in the etiology of bladder cancer by modulating the effects of known contributing factors such as smoking and SH infection.


Assuntos
Predisposição Genética para Doença/genética , NAD(P)H Desidrogenase (Quinona)/genética , Polimorfismo de Nucleotídeo Único , Superóxido Dismutase/genética , Neoplasias da Bexiga Urinária/genética , Idoso , Animais , Egito , Feminino , Frequência do Gene , Genótipo , Interações Hospedeiro-Parasita , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Fatores de Risco , Schistosoma haematobium/fisiologia , Esquistossomose Urinária/parasitologia , Fumar/efeitos adversos , Neoplasias da Bexiga Urinária/etiologia , Neoplasias da Bexiga Urinária/parasitologia
12.
J Empir Res Hum Res Ethics ; 8(3): 46-52, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23933775

RESUMO

We examined the awareness of and practices regarding patients' rights in one of the general hospitals in South Egypt. This cross-sectional study incorporated a convenience sample of the hospitalized patients and their companions (N = 292), as well as the actively working medical care providers (MCPs) at the time of data collection, 72 physicians and 48 nurses. Pretested structured questionnaires inquired about the way in which patients' rights are perceived by and exercised through the lived experiences of the sample group. An in-depth interview about patient rights' practices was conducted with the study hospital's highest-level manager. Three quarters of the patients and companions did not know about the list of patients' rights, compared to about half of the physicians and nurses--77%, 44%, and 48% respectively. Among those patients and companions who were knowledgeable about the list of patients' rights, mass media was their main source of knowledge, about eight times greater than their next source, placards on the hospital wall. The proportion of the physicians who stated undergraduate curriculum as a source of their knowledge was almost half that of the nurses. Strategies to promote awareness among MCPs, and to ensure effective supervision from both the Ministry of Health and local managers, should precede mass community patients' rights awareness efforts.


Assuntos
Conscientização , Competência Clínica , Conhecimentos, Atitudes e Prática em Saúde , Hospitalização , Hospitais , Direitos do Paciente , Pacientes , Adulto , Estudos Transversais , Currículo , Educação Médica , Egito , Feminino , Pesquisas sobre Atenção à Saúde , Humanos , Masculino , Meios de Comunicação de Massa , Pessoa de Meia-Idade , Enfermeiras e Enfermeiros , Médicos , Inquéritos e Questionários , Adulto Jovem
13.
J Int Soc Prev Community Dent ; 3(1): 38-43, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24478979

RESUMO

INTRODUCTION: Caries is associated with high counts of mutans streptococci (MS), lactobacillus (LB), and a low saliva buffering capacity (BC). No study using odds ratios (OR) has correlated caries and these factors and no similar study has been done in Saudi Arabia before. OBJECTIVES: To determine: The prevalence of caries, the number of colony forming units (CFUs) of MS and LB, the saliva buffering capacity (BC) and the relationship between these factors. MATERIALS AND METHODS: This was an analytical cross sectional study on children from Madinah. Caries was recorded using dmft/DMFT (decayed, missing, filled teeth). The scores for MS and LB and the BC of saliva was calculated using the Caries Risk Test (CRT)(®). RESULTS: A total of 316 students were examined; two-thirds (62%) were female and 25% were caries free. Saliva was collected from 235 participants and the majority had high MS and LB scores (66 and 71%, respectively) while 25% had a low saliva BC. The odds for those who had high LB and MS CFUs, were 9 and 4 times more at risk to developing dental caries and those with a low BC had significantly more caries (P = 0.03). The likelihood for those having severe caries and high counts of LB and MS was 25 (P < 0.01) and 6 (P = 0.042) times greater, respectively, compared to those with no or mild caries. Those with multiple risk factors were more likely to have caries compared to those with single or no risk factors present. CONCLUSIONS: The prevalence of caries was relatively high and many respondents had greater than 10(5) CFUs/ml of MS and LB. Almost all with a low BC had severe caries. There was a strong correlation between high MS, high LB, and low BC and the high prevalence of caries; hence the combination of these factors could be confidently used to predict caries in this population.

14.
Cancer Epidemiol Biomarkers Prev ; 21(3): 537-46, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22147365

RESUMO

BACKGROUND: We investigated associations between tobacco exposure, history of schistosomiasis, and bladder cancer risk in Egypt. METHODS: We analyzed data from a case-control study (1,886 newly diagnosed and histologically confirmed cases and 2,716 age-, gender-, and residence-matched, population-based controls). Using logistic regression, we estimated the covariate-adjusted ORs and 95% confidence interval (CI) of the associations. RESULTS: Among men, cigarette smoking was associated with an increased risk of urothelial carcinoma (OR = 1.8; 95% CI, 1.4-2.2) but not squamous cell carcinoma (SCC); smoking both water pipes and cigarettes was associated with an even greater risk for urothelial carcinoma (OR = 2.9; 95% CI, 2.1-3.9) and a statistically significant risk for SCC (OR = 1.8; 95% CI, 1.2-2.6). Among nonsmoking men and women, environmental tobacco smoke exposure was associated with an increased risk of urothelial carcinoma. History of schistosomiasis was associated with increased risk of both urothelial carcinoma (OR = 1.9; 95% CI, 1.2-2.9) and SCC (OR = 1.9; 95% CI, 1.2-3.0) in women and to a lesser extent (OR = 1.4; 95% CI, 1.2-1.7 and OR = 1.4; 95% CI, 1.1-1.7, for urothelial carcinoma and SCC, respectively) in men. CONCLUSIONS: The results suggest that schistosomiasis and tobacco smoking increase the risk of both SCC and urothelial carcinoma. IMPACT: This study provides new evidence for associations between bladder cancer subtypes and schistosomiasis and suggests that smoking both cigarettes and water pipes increases the risk for SCC and urothelial carcinoma in Egyptian men.


Assuntos
Adenocarcinoma/etiologia , Carcinoma de Células Escamosas/etiologia , Esquistossomose/complicações , Poluição por Fumaça de Tabaco/efeitos adversos , Neoplasias da Bexiga Urinária/etiologia , Idoso , Estudos de Casos e Controles , Egito , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
15.
Urol Oncol ; 30(6): 841-7, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-21397529

RESUMO

OBJECTIVES: To examine associations between urinary bladder cancer risk and polymorphisms of the gene encoding the catechol estrogen-metabolizing enzyme, catechol-O-methyltransferase (COMT), among Egyptian women and men. MATERIALS AND METHODS: We used questionnaire and genotype data from a case-control study in Egypt. This analysis focused on South Egypt cases with confirmed urothelial (UC) or squamous cell (SCC) carcinoma of the bladder, and controls frequency-matched on sex, 5-year age-group, and residence governorate. Real-time PCR on blood specimen DNA was used to determine COMT genotypes encoding for Val/Val, Val/Met, and Met/Met, the enzyme forms associated with high, intermediate, or low activity, respectively. RESULTS: The study sample, which included 255 women and 666 men, consisted of 394 cases with histologically confirmed UC (225) or SCC (n = 169), and 527 controls. The odds of having either type of bladder cancer were lower among men with genotypes encoding Val/Met or Met/Met than among those with the genotype encoding Val/Val, even after adjustment for other factors, such as smoking and schistosomiasis history [adjusted odds ratio (AOR): 0.64; 95% confidence interval (CI): 0.43, 0.96]; however, the association was statistically significant for SCC (AOR 0.57; 95% CI: 0.34, 0.96) but marginal for UC (AOR: 0.64; 95% CI: 0.39, 1.02). No significant associations were detected between bladder cancer risk and COMT genotypes among postmenopausal women. CONCLUSIONS: These findings suggest that even after controlling for established risk factors, the involvement of COMT genotypes in bladder cancer risk differs among men compared with women in South Egypt.


Assuntos
Carcinoma/genética , Catecol O-Metiltransferase/genética , Predisposição Genética para Doença/genética , Neoplasias da Bexiga Urinária/genética , Adulto , Idoso , Carcinoma/enzimologia , Estudos de Casos e Controles , Egito , Feminino , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único , Reação em Cadeia da Polimerase em Tempo Real , Fatores de Risco , Fatores Sexuais , Neoplasias da Bexiga Urinária/enzimologia
16.
Cancer Epidemiol Biomarkers Prev ; 20(7): 1552-4, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21586620

RESUMO

BACKGROUND: Bladder cancer is the most common male malignancy in Egypt, consists predominantly of urothelial cell carcinoma (UCC) and squamous cell carcinoma (SCC), and disparities in incidence exist between men and women regardless of geographic region. Tobacco smoke exposure and Schistosoma haematobium (SH) infection and the presence of GSTM1, GSTT1, and GPX1 genotypes, as modulators of the carcinogenic effect of reactive oxidative species, were hypothesized to modify bladder cancer risk and possibly explain these gender differences. METHODS: We evaluated the association between bladder cancer risk and functional polymorphisms in the GSTM1, GSTT1, and GPX1 genes in 625 cases and 626 matched population-based controls in Egypt and assessed for potential interactions between these candidate genes and environmental exposures, such as smoking and SH infection. We analyzed the risk for developing UCC and SCC separately. RESULTS: None of these functional polymorphisms were significantly associated with bladder cancer risk. There were no significant interactions between genotypes and smoking or SH infection in this population, nor was any difference detected in genotypic risk between men and women. CONCLUSIONS: Our findings suggest that common genetic variations in GSTM1, GSTT1, and GPX1 are not associated with bladder cancer risk overall and that well-known environmental risk factors, such as smoking and SH infection, do not interact with these genes to modulate the risk. IMPACT: Our data indicate that common genetic variations in GSTM1, GSTT1, and GPX1 were not associated with bladder cancer risk.


Assuntos
Carcinoma de Células Escamosas/genética , Carcinoma de Células de Transição/genética , Glutationa Peroxidase/genética , Glutationa Transferase/genética , Neoplasias da Bexiga Urinária/genética , Estudos de Casos e Controles , Egito , Feminino , Predisposição Genética para Doença , Genótipo , Humanos , Masculino , Polimorfismo de Nucleotídeo Único , Fatores de Risco , Glutationa Peroxidase GPX1
17.
J Egypt Public Health Assoc ; 86(1-2): 16-20, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21527836

RESUMO

BACKGROUND: Gram-negative bacillary meningitis (GNBM) is a rare disease with a high rate of mortality. OBJECTIVES: The aim of this study was to describe the clinical presentation and outcome of primary and secondary GNBM and to evaluate the efficacy of ceftriaxone (a third-generation cephalosporin) in the treatment of this disease. MATERIALS AND METHODS: A retrospective study was conducted including 95 patients with GNBM admitted to the Abbassia and Imbaba fever hospitals' meningitis wards in Egypt during the period from 1993 to the end of the year 2009. Their cerebrospinal fluid samples were subjected to conventional bacteriological methods for isolation of the causative Gram-negative bacilli. Forty-nine patients had primary GNBM (no predisposing cause of meningitis was detected) and 46 patients had secondary GNBM (with a predisposing cause of meningitis). RESULTS: Primary GNBM was characterized by an abrupt onset and was significantly associated with typical signs of meningeal irritation. The most common infecting organisms were Salmonella typhi in 16 (33%) patients and Escherichia coli in 15 (31%) patients. Of the patients with primary GNBM, 26 (53%) were cured, 11 (22%) developed neurological sequalae, and 12 (24%) patients died. Secondary GNBM was characterized by an insidious onset and significantly associated with unarousable coma. The most common infecting organisms were Proteus mirabilis in 17 (37%) patients and Pseudomonas aeruginosa in 16 (35%) patients. The most common predisposing factor of meningitis was otitis media and occurred in 26 (57%) patients. Of the patients with secondary GNBM, 15 (33%) were cured, 15 (33%) developed neurological sequalae, and 16 (35%) died. Primary GNBM was significantly associated with a higher cure rate than secondary GNBM. The duration of symptoms in patients with secondary GNBM was significantly higher than in those with primary GNBM. Ceftriaxone was the initial drug for treatment of these patients until the antibiotic sensitivity tests were reported. The overall resistance rate to the drug was 4%. CONCLUSION AND RECOMMENDATIONS: GNBM still has a high mortality rate and should be managed as a medical emergency. GNBM should be suspected in patients with otitis media, neurosurgical, and head trauma or who underwent spinal anesthesia and have disturbance in their level of consciousness, even if there are no signs of meningeal irritation. Ceftriaxone is still an effective drug and had a low rate of resistance in our study.


Assuntos
Bactérias Gram-Negativas , Meningites Bacterianas , Antibacterianos/administração & dosagem , Egito , Bactérias Gram-Negativas/efeitos dos fármacos , Humanos , Meningites Bacterianas/tratamento farmacológico , Estudos Retrospectivos
18.
Maturitas ; 67(4): 353-7, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20813471

RESUMO

OBJECTIVE: To examine associations between reproductive history and urinary bladder cancer in Egyptian women. METHODS: We used questionnaire data from an ongoing, multicenter case-control study in Egypt. Controls were matched on age and residence area. This analysis focused on female cases with confirmed urothelial (UC) and squamous cell (SCC) carcinoma of the bladder. RESULTS: We recruited 779 women (540 controls, 239 cases; >98.0% nonsmokers). Younger age at menopause (<45 y) and older age at first pregnancy (>18 y) were factors significantly associated with increased risk of bladder cancer, even after adjusting for schistosomiasis history and other covariates in the multivariable logistic model; adjusted odds ratio and 95% confidence intervals were 1.98 (1.41, 2.77) and 6.26 (3.46, 11.34), respectively. On the other hand, multiple pregnancies or use of oral contraceptives were associated with decreased odds of having bladder cancer. Similar associations were observed with UC and SCC when analyzed separately; however, the magnitude of association with SCC was lower than with UC. CONCLUSION: Our data suggest that early estrogen exposure, or the relative lack of it, plays a role in urinary bladder carcinoma development among Egyptian women.


Assuntos
Carcinoma de Células Escamosas/etiologia , Anticoncepcionais Orais , Estrogênios/metabolismo , Gravidez Múltipla , Gravidez , História Reprodutiva , Neoplasias da Bexiga Urinária/etiologia , Fatores Etários , Idoso , Estudos de Casos e Controles , Anticoncepcionais Orais/efeitos adversos , Egito , Estrogênios/efeitos adversos , Feminino , Humanos , Modelos Logísticos , Menarca , Pessoa de Meia-Idade , Análise Multivariada , Razão de Chances , Fatores de Risco , Inquéritos e Questionários
19.
J Med Ethics ; 36(9): 539-47, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20663757

RESUMO

OBJECTIVE: To determine the attitudes of Egyptian patients regarding their participation in research and with the collection, storage and future use of blood samples for research purposes. DESIGN: Cross-sectional survey. STUDY POPULATION: Adult Egyptian patients (n=600) at rural and urban hospitals and clinics. RESULTS: Less than half of the study population (44.3%) felt that informed consent forms should provide research participants the option to have their blood samples stored for future research. Of these participants, 39.9% thought that consent forms should include the option that future research be restricted to the illness being studied. A slight majority (66.2%) would donate their samples for future genetic research. Respondents were more favourable towards having their blood samples exported to other Arab countries (62.0%) compared with countries in Europe (41.8%, p<0.001) and to the USA (37.2%, p<0.001). CONCLUSIONS: This study shows that many individuals do not favour the donation of a blood sample for future research. Of those who do approve of such future research, many favour a consent model that includes an option restricting the future research to the illness being studied. Also, many Egyptians were hesitant to have their blood samples donated for genetic research or exported out of the Arab region to the USA and European countries. Further qualitative research should be performed to determine the underlying reasons for many of our results.


Assuntos
Pesquisa Biomédica/ética , Doadores de Sangue/psicologia , Preservação de Sangue/psicologia , Coleta de Amostras Sanguíneas/psicologia , Consentimento Livre e Esclarecido/psicologia , Pacientes/psicologia , Adulto , Fatores Etários , Pesquisa Biomédica/estatística & dados numéricos , Bancos de Sangue/normas , Doadores de Sangue/estatística & dados numéricos , Estudos Transversais , Egito , Feminino , Humanos , Consentimento Livre e Esclarecido/estatística & dados numéricos , Masculino , Participação do Paciente
20.
J Family Community Med ; 14(3): 103-11, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23012155

RESUMO

BACKGROUND: High fertility levels are of major concern to planners and policy makers in most countries in the developing world. In Saudi Arabia, the rate of population growth is the third highest of the countries of the Eastern Mediterranean Region. OBJECTIVES: This study aimed at identifying determinants of birth spacing and attitudes toward family planning among Saudi women. METHODS: A cross sectional survey of all women who have been married before, aged 15-49 years attending Al Hada armed forces hospital (primary health care and antenatal care clinics), was conducted between 1(st) February 2005 and 31(st) January 2006. Data was collected on socio-demographic, biological characteristics, beliefs, attitudes, and utilization of family planning services, pregnancy intervals and medical history RESULTS: For the 786 women included in the study, the mean duration of interbirth interval was 2.38±1.24 years. The multivariate Cox regression revealed that a woman's education, work status, husband's work status, a woman's history of chronic diseases, and husband's encouragement of interbirth spacing were the only significant predictors of longer interbirth intervals. Shorter interbirth intervals were independently predicted by lower family income, and presence of female offspring only or equal number of male and female offspring as opposed to presence of more males. The great majority of participating women (98%) had a positive opinion of the effect of birth spacing on the family. CONCLUSION: This study showed that certain factors were significant predictors of interbirth spacing for the Saudi women. This should lead to the encouragement of longer intervals between births. However, further studies are needed to ascertain a cause-effect association.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...