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1.
Int J Med Sci ; 21(6): 1165-1175, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38774756

RESUMO

Oral cancer is the most heterogeneous cancer at clinical and histological levels. PI3K/AKT/mTOR pathway was identified as one of the most commonly modulated signals in oral cancer, which regulates major cellular and metabolic activity of the cell. Thus, various proteins of PI3K/AKT/mTOR pathway were used as therapeutic targets for oral cancer, to design more specific drugs with less off-target toxicity. This review sheds light on the regulation of PI3K/AKT/mTOR, and its role in controlling autophagy and associated apoptosis during the progression and metastasis of oral squamous type of malignancy (OSCC). In addition, we reviewed in detail the upstream activators and the downstream effectors of PI3K/AKT/mTOR signaling as potential therapeutic targets for oral cancer treatment.


Assuntos
Autofagia , Carcinoma de Células Escamosas , Neoplasias Bucais , Transdução de Sinais , Humanos , Apoptose , Autofagia/fisiologia , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/genética , Neoplasias Bucais/patologia , Neoplasias Bucais/metabolismo , Neoplasias Bucais/tratamento farmacológico , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Serina-Treonina Quinases TOR/metabolismo
2.
Mar Drugs ; 21(7)2023 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-37504922

RESUMO

Hepatotoxic contaminants such as zearalenone (ZEA) are widely present in foods. Marine algae have a wide range of potential applications in pharmaceuticals, cosmetics, and food products. Research is ongoing to develop treatments and products based on the compounds found in algae. Fucoxanthin (FXN) is a brown-algae-derived dietary compound that is reported to prevent hepatotoxicity caused by ZEA. This compound has multiple biological functions, including anti-diabetic, anti-obesity, anti-microbial, and anti-cancer properties. Furthermore, FXN is a powerful antioxidant. In this study, we examined the effects of FXN on ZEA-induced stress and inflammation in HepG2 cells. MTT assays, ROS generation assays, Western blots, and apoptosis analysis were used to evaluate the effects of FXN on ZEA-induced HepG2 cell inflammation. Pre-incubation with FXN reduced the cytotoxicity of ZEA toward HepG2 cells. FXN inhibited the ZEA-induced production of pro-inflammatory cytokines, including IL-1 ß, IL-6, and TNF-α. Moreover, FXN increased HO-1 expression in HepG2 by activating the PI3K/AKT/NRF2 signaling pathway. In conclusion, FXN inhibits ZEA-induced inflammation and oxidative stress in hepatocytes by targeting Nrf2 via activating PI3K/AKT signaling.


Assuntos
Proteínas Proto-Oncogênicas c-akt , Zearalenona , Humanos , Proteínas Proto-Oncogênicas c-akt/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Fator 2 Relacionado a NF-E2/metabolismo , Zearalenona/toxicidade , Zearalenona/metabolismo , Transdução de Sinais , Estresse Oxidativo , Inflamação/induzido quimicamente , Inflamação/tratamento farmacológico , Apoptose
3.
BMC Cardiovasc Disord ; 21(1): 22, 2021 01 07.
Artigo em Inglês | MEDLINE | ID: mdl-33413091

RESUMO

BACKGROUND: Hypercholesterolemia (HC) is an important precursor to many cardiovascular, cerebrovascular, and peripheral vascular diseases. A report conducted by the American Heart Association showed the prevalence of HC to be 11.9%, with around 28.5 million adults age ≥ 20 years having high cholesterol levels. This study aimed to evaluate the prevalence of HC and its associated risk factors among the general population of Al-Kharj, Saudi Arabia. METHOD: A cross-sectional study was conducted on the general population of Al-Kharj, Saudi Arabia in 2016. The representative sample consisted of 1019 individuals, who all participated on a voluntary basis. The statistical analysis was performed using SPSS version 25. RESULTS: The results of this study showed the prevalence of HC in the sample to be 12.5%. There was a significant moderate positive association between increasing age and the prevalence of HC (r = 0.240, P < 0.0001). Males had a significantly higher prevalence of HC (56.7%) compared to their female counterparts (43.3%) (X2 = 23.093, P ≤ 0.0001). BMI was positively and significantly associated with high cholesterol status. Participants in the overweight category had a significantly higher risk of HC (OR = 1.727; 95% CI = 1.58-1.914; P = 0.046). The non-obese (< 25 kg/m2) participants had an inverse significant association with the risk of hypercholesterolemia. (OR = 0.411; 95% CI = 0.216-0.783; P = 0.007). CONCLUSION: In this population-based study, the predominant risk factors of HC in Al-Kharj region were being of a Saudi nationality, male, having obesity, being unemployed, and being a civilian worker. There is a clear need for future screening studies of HC, as most previous studies have reported contradictory prevalence data (because they were conducted in different regions of KSA). Furthermore, well-designed prospective cohort studies are needed in the future to assess how the association between lifestyle behavioural factors such as dietary intake patterns and levels of physical activity may affect the relative risk of HC status.


Assuntos
Colesterol/sangue , Hipercolesterolemia/epidemiologia , Adolescente , Adulto , Biomarcadores/sangue , Índice de Massa Corporal , Estudos Transversais , Feminino , Inquéritos Epidemiológicos , Humanos , Hipercolesterolemia/sangue , Hipercolesterolemia/diagnóstico , Descrição de Cargo , Masculino , Obesidade/diagnóstico , Obesidade/epidemiologia , Ocupações , Prevalência , Medição de Risco , Fatores de Risco , Arábia Saudita/epidemiologia , Fatores Sexuais , Desemprego , Adulto Jovem
4.
Ann Gen Psychiatry ; 20(1): 23, 2021 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-33771167

RESUMO

BACKGROUND: Psychological distress is one of the major determinants for the experience progression, and recovery of chronic pain. However, it is unclear whether physical pain in specific body sites could be predictive of psychological illness. In this study, we aim to investigate the link between chronic pain in specific anatomical sites and psychological distress represented in the General Health Questionnaire-12 (GHQ-12 items). METHODS: A population-based cross-sectional study was conducted in Al Kharj region of Saudi Arabia. We included 1003 participants. Data were collected using the GHQ-12, and a subjective report on eight anatomical pain sites. Data analysis used statistical software SPSS version 26.0 for Windows statistical package. RESULTS: Chronic musculoskeletal pain in the neck and head regions was significantly associated with higher psychological distress. Other sites (back, lower limb, chest, abdominal and upper limb pain) were not associated with psychological distress. In multiple regression analysis, chronic 'general' pain was significantly associated with higher psychological distress (unstandardized Beta regression coefficient = 2.568; P < 0.0001). The patients with younger age were more likely to develop negative psychological disorders (unstandardized Beta = - 3.137; P = 0.038). Females were more likely to have higher psychological distress than males (unstandardized Beta = 2.464, P = 0.003). Single (not-married) people have a higher risk of psychological distress than married people (unstandardized Beta = 2.518, P = 0.025). Also, job type/status whether being unemployed (not working) or 'civilian' (civil servant/worker) was positively and significantly associated with an increased probability of psychological distress (unstandardized Beta = 1.436, P = 0.019). CONCLUSION: Chronic 'general' pain was significantly associated with negative psychological disorders. The government of Saudi Arabia needs to focus on patients with chronic 'general' pain, females, young and unmarried individuals as potentially 'high-risk' population subgroups for adverse psychological disorders, and subsequent long-term complications.

5.
ScientificWorldJournal ; 2020: 4790254, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32607079

RESUMO

BACKGROUND: Recurring migraine disorders are a common medical problem, standing among the top causes of disability and sufferings. This study aimed to evaluate epidemiological evidence to report updated estimates on prevalence, risk factors, and associated comorbidities of migraine headache in the Arab countries. Design and Setting. A systematic review was conducted at the College of Public Health and Health Informatics, Riyadh, Saudi Arabia. METHODS: A systematic search in electronic databases, such as PubMed and Embase, as well as manual searches with cross-referencing was performed from 1990 up to 2019. Overall, 23 included papers were rated independently by two reviewers. Studies were eligible for inclusion only if they investigated migraine headache epidemiology in any Arab country and were published in English. RESULTS: Migraine prevalence among the general population ranged between 2.6% and 32%. The estimated prevalence of migraine headache among medical university students ranged between 12.2% and 27.9% and between 7.1% and 13.7% in schoolchildren (6 to 18 years). Females were found more likely to have migraine than males. The duration of migraine attacks became shorter with increasing age, while chronic (daily) migraine showed increasing prevalence with age. The most commonly reported comorbidities with migraine included anxiety, hypertension, irritable bowel syndrome, and depression. Most common headache-triggering factors included stress, fatigue, sleep disturbances, prolonged exposure to excessive sunlight or heat, and hunger. CONCLUSION: The prevalence and risk factors of migraine headache in Arab countries are comparable to reports from western countries. Longitudinal studies are still needed to investigate the prognosis and predictors of chronicity in the arab countries.


Assuntos
Árabes/estatística & dados numéricos , Cefaleia/epidemiologia , Transtornos de Enxaqueca/epidemiologia , Comorbidade , Cefaleia/diagnóstico , Cefaleia/terapia , Humanos , Oriente Médio/epidemiologia , Transtornos de Enxaqueca/diagnóstico , Transtornos de Enxaqueca/terapia , Prevalência , Recidiva , Fatores de Risco , Arábia Saudita/epidemiologia
6.
Health Qual Life Outcomes ; 17(1): 21, 2019 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-30683116

RESUMO

BACKGROUND: The need for home healthcare programs is an increasingly becoming important common component of healthcare worldwide, as an alternative to hospitalization, owing to the growing elderly population, chronic and acute diseases that need continuous monitoring and care. The overall aim of this study was to describe and assess the quality of life (QOL) and associated determinants among patients enrolled in the Home Health Care (HHC) program affiliated with the Ministry of National Guard Health Affairs in Riyadh, Saudi Arabia. METHODS: This cross-sectional study was conducted among patients enrolled at the HHC program. The World Health Organization QOL questionnaire (WHOQOL-BREF) was used to collect data about the different domains of patients' QOL. Logistic regression models were fitted to determine factors associated with QOL low score. RESULTS: The study included 253 patients. Mean age was 67.05 (± 20.0). The overall QOL for HHC patients was significantly affected by both socio-demographic and morbid characteristics. In the final Multivariate logistic regression models, marital status, and having psychological problems, stroke and number illness were independently associated with the overall QOL of HHC patients (p = .022, p = .002, p = .031, .057 respectively). The physical health domain score was significantly associated with education level, having psychological problems and stroke (p = .028, p = .002, p = .007 retrospectively) whereas the psychological domain score was significantly associated with age (p = < 0.001) and three types of chronic diseases: pulmonary (p = .002), psychological problems (p = < 0.001). The social domain score was significantly associated only with the marital status (p = .026). The environmental domain was significantly associated with the education level and having stroke (p = .017 vs .027). CONCLUSIONS: The overall QOL and its domains are significantly associated with several different factors. Many of these factors can be monitored and enhanced by improving quality of HHC services, thus improving the QOL of patients.


Assuntos
Serviços de Assistência Domiciliar/normas , Qualidade de Vida , Idoso , Idoso de 80 Anos ou mais , Doença Crônica/terapia , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise de Regressão , Estudos Retrospectivos , Arábia Saudita , Fatores Socioeconômicos , Inquéritos e Questionários
7.
Ann Clin Microbiol Antimicrob ; 18(1): 20, 2019 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-31269955

RESUMO

BACKGROUND: Despite their critical role in antimicrobial stewardship programs, data on antimicrobial consumption among the pediatric and neonatal population is limited internationally and lacking in Saudi Arabia. The current study was done as part of our antimicrobial stewardship activities. OBJECTIVES: To calculate overall and type-specific antimicrobial consumption. METHODS: A prospective surveillance study was conducted at King Abdulaziz Medical City, Riyadh, Saudi Arabia, between October 2012 and June 2015 in two pediatric and one neonatal intensive care units (ICUs). Consumption data were collected manually on a daily basis by infection control practitioners. Data were presented as days of therapy (DOT) per 1000 patient-days and as frequency of daily consumption. RESULTS: During the 33 months of the study, a total of 30,110 DOTs were monitored during 4921 admissions contributing 62,606 patient-days. Cephalosporins represented 38.0% of monitored antimicrobials in pediatric ICUs followed by vancomycin (21.9%), carbapenems (14.0%), aminoglycosides (8.8%), and piperacillin/tazobactam (8.8%). Their consumption rates were 265.1, 152.6, 97.6, 61.4, and 61.4 DOTs per 1000 patient-days (respectively). Aminoglycosides represented 45.4% of monitored antimicrobials in neonatal ICU followed by cephalosporins (30.4%) vancomycin (13.6%), and carbapenems (8.3%). Their consumption rates were 147.5, 98.7, 44.3, and 27 DOTs per 1000 patient-days (respectively). CONCLUSION: Cephalosporins are frequently used in pediatric ICU while aminoglycosides are frequently used in neonatal ICU. The local consumption of cephalosporins and carbapenems in both ICUs is probably higher than international levels. Such data can help in establishing and monitoring the functions of antimicrobial stewardship activities aiming to ensure judicious consumption of antimicrobials.


Assuntos
Antibacterianos/uso terapêutico , Infecções Bacterianas/tratamento farmacológico , Infecção Hospitalar/tratamento farmacológico , Unidades de Terapia Intensiva Neonatal/estatística & dados numéricos , Adolescente , Bactérias/efeitos dos fármacos , Bactérias/genética , Bactérias/isolamento & purificação , Infecções Bacterianas/epidemiologia , Infecções Bacterianas/microbiologia , Carbapenêmicos/uso terapêutico , Cefalosporinas/uso terapêutico , Criança , Pré-Escolar , Infecção Hospitalar/epidemiologia , Infecção Hospitalar/microbiologia , Monitoramento Epidemiológico , Feminino , Humanos , Lactente , Masculino , Pediatria/estatística & dados numéricos , Estudos Prospectivos , Arábia Saudita/epidemiologia , Vancomicina/uso terapêutico
8.
BMC Musculoskelet Disord ; 20(1): 177, 2019 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-31027485

RESUMO

BACKGROUND: Chronic pain (CP) can be a symptom of many underlying health issues. The consequences of CP may vary from slight discomfort to disruption of quality of life and normal functioning. In this study, we aim to investigate the prevalence of CP and its associated factors in Al Kharj, Saudi Arabia. METHODS: This was a cross-sectional study conducted in Al Kharj, Saudi Arabia. We recruited 1031 participants for our study. Data was collected on socio-demographic, health predictors and anthropometric measurements (such as weight, height and waist circumference). The data analysis was performed on JMP®, Version 12. SAS Institute Inc., Cary, NC, 1989-2007. RESULTS: The prevalence of self-reported chronic pain in Al Kharj population was 19% with a mean age of 26.4 (SD = 8.6) years. The most common locations of pain included; back pain (30%), abdominal pain (26%), headache (13%), and any musculoskeletal pain (56%). Multiple logistic regression revealed that presence of a chronic disease (OR = 3.8; 95% CI = 2.3-6.2), psychological disease (OR = 2.3; 95% CI = 1.2-4.3), high General Health Questionnaire (GHQ)-12 score (OR = 1.06; 95% CI = 1.03-1.1), and pack-years of smoking (OR = 1.05; 95% CI = 1.01-1.08) were significantly related to chronic pain in Al Kharj population. CONCLUSIONS: Our study results found a high burden of chronic pain in this selected Saudi population. The most prevalent pain was low back pain. The presence of chronic and psychological diseases were strongly related to chronic pain. Future prospective studies are needed to establish the temporal relationship of chronic pain with these factors.


Assuntos
Dor Crônica/epidemiologia , Dor Abdominal/diagnóstico , Dor Abdominal/epidemiologia , Adulto , Dor Crônica/diagnóstico , Estudos Transversais , Feminino , Cefaleia/diagnóstico , Cefaleia/epidemiologia , Humanos , Dor Lombar/diagnóstico , Dor Lombar/epidemiologia , Masculino , Dor Musculoesquelética/diagnóstico , Dor Musculoesquelética/epidemiologia , Prevalência , Qualidade de Vida , Fatores de Risco , Arábia Saudita/epidemiologia , Autorrelato/estatística & dados numéricos , Adulto Jovem
9.
Lipids Health Dis ; 17(1): 134, 2018 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-29871648

RESUMO

BACKGROUND: Obesity and overweight are accompanied with several different chronic diseases. Overweight and obesity can be measured by using body mass index (BMI) and is also used widely as an index of relative adiposity among any population. The aim of the study is to evaluate the prevalence of overweight and obesity among general population in Al-Kharj, Saudi Arabia. METHODS: Cross-sectional analysis was undertaken from a representative sample (N = 1019) of the Al Kharj population. Anthropometric measurements including the waist circumference (in centimeters), height (in meters), and weight (in kilograms) of the subjects were undertaken by means of standard apparatus. SPSS 24.0 was utilized for statistical analysis of the data. RESULTS: Majority of respondents in this study were overweight and obese (54.3%) compared with 45.7% being non-obese. A linear positive association of increasing BMI with older age groups was present in males and females. Men had larger waist circumference, weight and height measures as compared with their female counterparts. Regression analysis showed increasing age, being married and high serum cholesterol to be the significant predictors of overweight and obesity while gender, education level, job status, and having diabetes were not. CONCLUSIONS: The obesity-overweight prevalence in the Saudi population is high mainly across both genders. However, the associated factors are potentially preventable and modifiable. The regional barriers to lifestyle modifications and interventions to encourage active lifestyles, especially among adolescents to limit the occurrence of obesity and ultimately promote health and wellbeing, are warranted. Furthermore, prospective studies are needed in future to confirm the aetiological nature of such associations.


Assuntos
Hipercolesterolemia/complicações , Sobrepeso/epidemiologia , Adolescente , Adulto , Idoso , Índice de Massa Corporal , Estudos Transversais , Diabetes Mellitus , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Obesidade/epidemiologia , Sobrepeso/complicações , Prevalência , Arábia Saudita/epidemiologia , Circunferência da Cintura , Adulto Jovem
10.
J Plant Res ; 131(6): 1015-1028, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29357048

RESUMO

Boron (B) toxicity often limits crop yield and the quality of production in agricultural areas. Here, we investigated the effects of calcium (Ca), silicon (Si) and salicylic acid (SA) on development of B toxicity, B allocation in canola (Brassica napus cultivar Sarw 4) and its role in non-enzymatic antioxidants in relation to yield of this cultivar under B toxicity. Canola seedlings were subjected to four B levels induced by boric acid in the absence or presence of Ca, Si and SA. The results showed that Ca, Si and SA addition ameliorated the inhibition in canola growth, water content (WC), and improved siliqua number, siliqua weight and seed index. The B content in shoots and roots and total B accumulation in the whole plant were increased in control plants under B-toxicity-stress, and these parameters were significantly decreased by addition of Ca, Si and SA. The shoot ascorbate pool (ascorbate, AsA, and dehydroascorbate, DHA), α-tocopherol and phenolics (free and bound) were increased under B toxicity, and were significantly decreased in most cases by addition of Ca, Si and SA, except α-tocopherol, which increased at low B levels (0, 25 and 50 mg kg soil-1). The glutathione content did not obviously change by B stress, while added Ca, Si and SA inhibited its accumulation under B stress. In addition, B toxicity reduced the shoot flavonoids content; however, this reduction was not alleviated by the use of Ca, Si and SA treatments. It could be concluded that growth and yield of canola plants grown under high B concentration improved after external application of Ca, Si or SA.


Assuntos
Boro/toxicidade , Brassica napus/efeitos dos fármacos , Cálcio/uso terapêutico , Ácido Salicílico/uso terapêutico , Silício/uso terapêutico , Estresse Fisiológico/efeitos dos fármacos , Brassica napus/crescimento & desenvolvimento , Brassica napus/metabolismo , Glutationa/metabolismo , Raízes de Plantas/efeitos dos fármacos , Brotos de Planta/efeitos dos fármacos , Vitamina E/metabolismo
11.
BMC Public Health ; 18(1): 1327, 2018 Nov 29.
Artigo em Inglês | MEDLINE | ID: mdl-30497425

RESUMO

BACKGROUND: Hypertension and prehypertension pose significant public-health and clinical challenges for both economically developed and developing nations. Prevalence of these conditions are frequently underreported because of its often-silent nature. Population-based studies that explore the occurrence and correlates of these conditions are scarce in Saudi Arabia. This study aimed at estimating the prevalence and associated factors of hypertension and prehypertension on a representative sample of males and females living in Al-Kharj town in Saudi Arabia. METHODS: Cross-sectional analysis was performed from January 2016 until June 2016 by recruiting a representative sample (n = 1019; aged 18 to 67 years) of the Al Kharj population. All participants completed a self-administered questionnaire, followed by a physical examination and blood test. Statistical analysis was carried out using SPSS version 24.0 for Windows. RESULTS: The prevalence of prehypertension was 66.1, 48.1 and 54.9% in male, female and all subjects, respectively. The prevalence of hypertension was 6.0, 4.2 and 4.9% in male, female and all subjects, respectively. Being overweight was associated with the highest risk of hypertension (OR = 4.98 [95% C.I. = 1.98-12.52], P = 0.001). People who were classified as class I obese had 3.5 times the risk of hypertension compared with the non-obese group (OR = 3.49 [95% C.I. = 1.42-8.63], P = 0.007). Risk of pre-hypertension was significantly lower in females (OR = 0.48 [95% C.I. = 0.32-0.71]) and tends to increase with obesity status. Gender-specific analyses found that males in the lowest education attainment level had a significantly increased risk of pre-hypertension (OR = 6.56 [95% C.I. = 1.27-33.85], P = 0.003). CONCLUSION: This population-based study in Saudi Arabia shows that hypertension and prehypertension are common conditions particularly among males. Overweight and obesity was associated with both conditions. In addition, lower education attainment was a significantly associated factor among males. Future prospective studies are needed to confirm the etiological nature of such associations.


Assuntos
Hipertensão/epidemiologia , Pré-Hipertensão/epidemiologia , Adolescente , Adulto , Idoso , Estudos Transversais , Escolaridade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/epidemiologia , Sobrepeso/epidemiologia , Prevalência , Fatores de Risco , Arábia Saudita/epidemiologia , Distribuição por Sexo , Inquéritos e Questionários , Adulto Jovem
12.
BMC Health Serv Res ; 18(1): 595, 2018 08 02.
Artigo em Inglês | MEDLINE | ID: mdl-30071833

RESUMO

BACKGROUND: The General Health Questionnaire-12 (GHQ-12) is one of the most unique and extensively used self-report instruments for evaluating psychological disorders and strains. However, the factor structure of GHQ-12 has not been fully explored. The current study aims to assess the factorial structure of GHQ-12 in a large cross-sectional data-set extracted from Al Kharj central region of Saudi Arabia. METHODS: Population based cross sectional data was extracted from January 2016 to June 2016 from Al Kharj population recruiting 1019 respondents aged 18 and above. Exploratory factor analysis (EFA) was applied together with multiple regression analysis to extract and retain factors. Mean GHQ-12 score for demographic and health-related traits were used for assessing this association. Statistical analysis was carried out using STATA version 12.1. RESULTS: Three factors, including social dysfunction, anxiety, and loss of confidence were extracted from the factor structure. 55% of the overall variance was obtained through these factors. Total score of GHQ-12 ranged from 0 to 32 with a mean score of 12. CONCLUSION: Investigation of the factor structure of GHQ-12 demonstrated that GHQ-12 is a good measure for evaluating the general health of Saudi population. Future studies based on a larger sample size of non-clinical respondents will be useful to evaluate the practical effectiveness of GHQ-12 factors.


Assuntos
Nível de Saúde , Inquéritos e Questionários/normas , Adolescente , Adulto , Idoso , Ansiedade/diagnóstico , Ansiedade/psicologia , Estudos Transversais , Demografia , Análise Fatorial , Feminino , Humanos , Relações Interpessoais , Masculino , Saúde Mental , Pessoa de Meia-Idade , Psicometria/instrumentação , Análise de Regressão , Arábia Saudita , Autoimagem
13.
Saudi Pharm J ; 26(5): 629-633, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29989016

RESUMO

BACKGROUND: Pharmacoepidemiology is the concept used for evaluating the impact of drugs among a large number of people in the post-marketing phase. The use of this concept makes it increasingly necessary to detect the recurrence of drug-related anomalies that mostly occur through health care professionals or patients themselves. Pharmacoepidemiology is important since it helps to provide the right balance of benefits versus risks of the drug products while remaining an excellent tool to prepare the risk/benefit balance profile. AIM: The objective of this study is to review and explore the current status and future prospects of pharmacoepidemiology and post-marketing surveillance in Saudi Arabia. METHODS: A literature review has been conducted using keywords such as pharmacoepidemiology'; 'post-marketing'; 'surveillance'; 'Saudi Arabia'; 'ADRs'; and 'pharmacovigilance'. The study refines its focus on 13 pharmacoepidemiology and post-marketing surveillance research studies conducted in Saudi Arabia using the databases; Embase, PubMed, EBSCOhost, MEDLINE, and AMED. RESULTS: Pharmacoepidemiology and post-marketing surveillance creates a body of research in Saudi Arabia, but within a restricted scope. The studies that were reviewed assessed the challenge from various perspectives. Lack of knowledge, post-marketing surveillance, ADR reporting, and increased use of generic products were reported. CONCLUSION: The current level of research may be widened and increased through improving the process of ADRs reporting system. More research needs to be conducted based on nation-wide observational studies. Collaboration among medical professionals, academics and industries should continue to establish a more efficient and consistent post-marketing surveillance system.

14.
Adv Exp Med Biol ; 972: 131-139, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28004307

RESUMO

Health threats due to infectious diseases used to be a major public health concerns around the globe till mid of twentieth century when effective public health interventions helped in eradicating a number of infectious diseases around the world. Over the past 15 years, there has been a rise in the number of emerging and reemerging infectious diseases being reported such as the Acute Respiratory Syndrome (SARS) in 2002, HINI in 2009, Middle East Respiratory Syndrome (MERS) in 2012, Ebola in 2014, and Zika in 2016. These emerging viral infectious diseases have led to serious public health concerns leading to death and causing fear and anxiety among the public. More importantly, at the moment, the prevention and control of viral infectious diseases is difficult due to a lack of effective vaccines. Thus having real-time reporting tools are paramount to alert relevant public health surveillance systems and authorities about taking the right and necessary actions to control and minimize the potential harmful effects of viral infectious diseases. Social media and Internet-based data can play a major role in real-time reporting to empower active public health surveillance systems for controlling and fighting infectious diseases.


Assuntos
Controle de Doenças Transmissíveis/métodos , Internet , Mídias Sociais , Viroses/prevenção & controle , Vigilância da População
15.
Int J Mol Sci ; 18(4)2017 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-28375167

RESUMO

Successful immunization against avian influenza virus (AIV) requires eliciting an adequate polyclonal response to AIV hemagglutinin (HA) subunit 1 (HA1) epitopes. Outbreaks of highly-pathogenic (HP) AIV subtype H5N1 can occur in vaccinated flocks in many endemic areas. Protection against emerging AIV is partly hindered by the limitations of vaccine production and transport, the use of leaky vaccines, and the use of multiple, and often antigenically-diverse, vaccines. It was hypothesized that the majority of alternative functional configurations (AFC) within the AIV HA1 can be represented by the pool of vaccine seed viruses currently in production because only a finite number of AFC are possible within each substructure of the molecule. Therefore, combinations of commercial vaccines containing complementing structural units (CSU) to each HA1 substructure can elicit responses to the totality of a given emerging AIV HA1 substructure isoforms. Analysis of homology-based 3D models of vaccine seed and emerging viruses facilitated the definition of HA1 AFC isoforms. CSU-based plots were used to predict which commercial vaccine combinations could have been used to cover nine selected AFC isoforms on recent Egyptian HP AIV H5N1 outbreak viruses. It is projected that expansion of the vaccine HA1 3D model database will improve international emergency responses to AIV.


Assuntos
Glicoproteínas de Hemaglutininação de Vírus da Influenza/imunologia , Virus da Influenza A Subtipo H5N1/imunologia , Vacinas contra Influenza/imunologia , Influenza Aviária/imunologia , Sequência de Aminoácidos , Animais , Anticorpos Antivirais/imunologia , Galinhas , Surtos de Doenças/prevenção & controle , Egito/epidemiologia , Glicoproteínas de Hemaglutininação de Vírus da Influenza/química , Glicoproteínas de Hemaglutininação de Vírus da Influenza/genética , Imunização , Virus da Influenza A Subtipo H5N1/classificação , Virus da Influenza A Subtipo H5N1/genética , Vacinas contra Influenza/administração & dosagem , Influenza Aviária/tratamento farmacológico , Influenza Aviária/epidemiologia , Modelos Moleculares , Mutação , Filogenia , Conformação Proteica , Homologia de Sequência de Aminoácidos
16.
J Med Syst ; 40(1): 11, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26573648

RESUMO

This research analyzes the impact of mobile phone screen size on user comprehension of health information and application structure. Applying experimental approach, we asked randomly selected users to read content and conduct tasks on a commonly used diabetes mobile application using three different mobile phone screen sizes. We timed and tracked a number of parameters, including correctness, effectiveness of completing tasks, content ease of reading, clarity of information organization, and comprehension. The impact of screen size on user comprehension/retention, clarity of information organization, and reading time were mixed. It is assumed on first glance that mobile screen size would affect all qualities of information reading and comprehension, including clarity of displayed information organization, reading time and user comprehension/retention of displayed information, but actually the screen size, in this experimental research, did not have significant impact on user comprehension/retention of the content or on understanding the application structure. However, it did have significant impact on clarity of information organization and reading time. Participants with larger screen size took shorter time reading the content with a significant difference in the ease of reading. While there was no significant difference in the comprehension of information or the application structures, there were a higher task completion rate and a lower number of errors with the bigger screen size. Screen size does not directly affect user comprehension of health information. However, it does affect clarity of information organization, reading time and user's ability to recall information.


Assuntos
Compreensão , Informação de Saúde ao Consumidor/métodos , Apresentação de Dados , Aplicativos Móveis , Smartphone/instrumentação , Adulto , Feminino , Humanos , Leitura
17.
Saudi Pharm J ; 23(4): 397-404, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27134541

RESUMO

OBJECTIVES: The current study aimed to explore the knowledge, perception, and attitude of physicians toward generic medicines in Saudi Arabia. BACKGROUND: The local market of generic medicine share in Saudi Arabia is low compared to global and regional statistics. The reason for this low market share and the role of physicians has not previously been investigated. The purpose of this study was to assess health practitioner level of perceived knowledge, opinions and attitudes about local generic medication, and identify factors that influence infrequency of generic prescriptions. METHODS: A random sample of 231 physicians was recruited from two hospitals in Riyadh (one government one private) and 178 (77%) responded. Information on the physicians' perceived knowledge, opinions and attitude toward local generic medication was extracted, analyzed and interpreted. Factors that influence infrequent prescription of local generic drugs were identified. RESULTS: Among the 178 participants in the physicians' survey, 76% and 47% reported that they are knowledgeable about the terms "generic" and "bioequivalence" respectively, while 44% reported that they are able to explain bioequivalence to their patients. Approximately 52% of physicians reported that local generics should be substituted for brands if suitable for the case, and 21.9% reported that they believe SFDA approved local generics are therapeutically equivalent to their brands. Clinical effectiveness was reported by 71.9% of physicians as the most influential factor effecting prescription of brand over local generic medication. The three independent significant predictors for infrequent prescription of local generics among physicians: Government sector employment (OR = 3.74, [95%CI 1.50-9.43]), consultant level (OR = 3.94, [95%CI 1.50-10.31]) and low level of knowledge about local generics (OR = 4.11, [95%CI 1.56-10.84]). CONCLUSION: The low market share of local generics medicines attributed to low prescription rates is significantly more among senior-level physicians working in governmental hospitals. Low level of knowledge about generic drugs among physicians was the strongest predictive factor for low prescription. Future bigger studies are needed to confirm these results.

18.
Saudi Pharm J ; 23(5): 573-80, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26594125

RESUMO

BACKGROUND: In Saudi Arabia there is an estimated need of more than 100,000 pharmacy graduates to cover all present sectors. The shortage of pharmacists has affected many of these sectors especially the pharmaceutical industry. The contribution of Saudi pharmacists to local pharmaceuticals industry would be extremely beneficial and important for shaping the future of the drug industry within the Kingdom. It is not clear whether future Saudi pharmacists are willing to contribute to local pharmaco-industrial fields. METHODS: A cross-sectional, questionnaire-based survey was conducted on all final-year pharmacy students in King Saud University (KSU), Riyadh, Kingdom of Saudi Arabia (KSA). RESULTS: Out of a total of 130 students registered in the final-year of the pharmacy program in KSU, 122 (93.8%) were able to complete the questionnaire. The results showed that the majority (83%) of Saudi pharmacy students indicated that they had not received practical training in the pharmaceutical companies, while only 17.2% of the students felt that they had the knowledge and the skills to work in the pharmaceutical industry after graduation. The majority of the students (66.7%) chose clinical pharmacy as their future career field while only 10.9% indicated willingness to work in a pharmaceutical industry career. Only 8.2% selected working in the pharmaceutical industry. The significant predictor of possibly choosing a career in the local drug industry is a student with a bachelor's degree (compared to Pharm D degree) in pharmacy (OR = 2.7 [95% CI 1.1-6.3]). CONCLUSION: Pharmacy students who are enrolled in the capital city of Riyadh are not properly trained to play an influential role in local drug companies. As a result, their level of willingness to have a career in such important business is not promising (more among Pharm D program). Future research in other pharmacy colleges within Saudi Arabia is needed to confirm such results.

19.
Neurosciences (Riyadh) ; 20(2): 137-44, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25864066

RESUMO

OBJECTIVE: To assess the epidemiology of attention deficit hyperactivity disorder (ADHD) in Arab countries, and identify gaps for future research. METHODS: We searched PubMed from July 1978 to July 2014 and reviewed local journals with cross-referencing. The keywords we used were ADHD, diagnosis, prevalence, incidence, factor, diagnosis, rate, risk, and each of the names of the 22 Arab countries (Jordan, Egypt, Lebanon, Saudi Arabia, and so on). Studies were eligible for inclusion if they investigated the epidemiology of ADHD in any Arab country, and were published in English. The search was conducted from 2nd to 5th August 2014 in King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia. RESULTS: A total of 22 articles were included in the review. Twenty studies were cross-sectional and found the prevalence of ADHD ranged between 1.3-16%, prevalence of hyperactive type ADHD between 1.4-7.8%, and the prevalence of inattention type between 2.1-2.7%. Only 2 case-control studies investigated potential risk factors. Evidence extracted from these studies shows a significant association between ADHD and male gender, previous psychiatric illness in the family, vitamin D deficiency, poor school performance, sleep problems, and nocturnal enuresis. CONCLUSION: The prevalence of ADHD in Arab countries is comparable to reports in North America, Africa, and other countries of the Middle East. Longitudinal studies are needed to investigate the prognosis and determinants of this condition in the Arab world.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Adulto , Criança , Humanos , Oriente Médio/epidemiologia , Prevalência
20.
Neurosciences (Riyadh) ; 20(1): 27-30, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25630777

RESUMO

OBJECTIVE: To determine the degree of satisfaction and acceptance of stroke patients, their relatives, and healthcare providers toward using telestroke technology in Saudi Arabia. METHODS: A cross-sectional study was conducted between October and December 2012 at King Abdulaziz Medical City, Ministry of National Guard Affairs, Riyadh, Saudi Arabia. The Remote Presence Robot (RPR), the RP-7i (FDA- cleared) provided by InTouch Health was used in the study. Patients and their relatives were informed that the physician would appear through a screen on top of a robotic device, as part of their clinical care. Stroke patients admitted through the emergency department, and their relatives, as well as healthcare providers completed a self-administered satisfaction questionnaire following the telestroke consultation sessions. RESULTS: Fifty participants completed the questionnaire. Most subjects agreed that the remote consultant interview was useful and that the audiovisual component of the intervention was of high quality; 98% agreed that they did not feel shy or embarrassed during the remote interview, were able to understand the instruction of the consultant, and recommended its use in stroke management. Furthermore, 92% agreed or strongly agreed that the use of this technology can efficiently replace the physical presence of a neurologist. CONCLUSION: Results suggest that the use of telestroke medicine is culturally acceptable among stroke patients and their families in Saudi Arabia and favorably received by healthcare providers.


Assuntos
Robótica , Acidente Vascular Cerebral/terapia , Telemedicina , Adulto , Idoso , Estudos Transversais , Feminino , Pessoal de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Arábia Saudita , Inquéritos e Questionários
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