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1.
Clin Radiol ; 79(4): e524-e531, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38267349

RESUMO

AIM: To compare the diagnostic performance of abbreviated breast magnetic resonance (AB-MR) imaging (MRI) and digital breast tomosynthesis (DBT) for breast cancer detection in Malaysian women with dense breasts, using histopathology as the reference standard. MATERIALS AND METHODS: This was a single-centre cross-sectional study of 115 women with American College of Radiology (ACR) Breast Imaging-Reporting and Data System (BIRADS) breast density C and D on DBT with breast lesions who underwent AB-MR from June 2018 to December 2021. AB-MR was performed on a 3 T MRI system with an imaging protocol consisting of three sequences: axial T1 fat-saturated unenhanced; axial first contrast-enhanced; and subtracted first contrast-enhanced with maximum intensity projection (MIP). DBT and AB-MR images were evaluated by two radiologists blinded to the histopathology and patient outcomes. Diagnostic accuracy (sensitivity, specificity, positive predictive value [PPV] and negative predictive value [NPV]) was assessed. RESULT: Of the 115 women, the mean age was 50.6 years. There were 48 (41.7%) Malay, 54 (47%) Chinese, and 12 (10.4%) Indian women. The majority (n=87, 75.7%) were from the diagnostic population. Sixty-one (53.1%) were premenopausal and 54 (46.9%) postmenopausal. Seventy-eight (72.4%) had an increased risk of developing breast cancer. Ninety-one (79.1%) women had density C and 24 (20.9%) had density D. There were 164 histopathology-proven lesions; 69 (42.1%) were malignant and 95 (57.9%) were benign. There were 62.8% (n=103/164) lesions detected at DBT. All the malignant lesions 100% (n=69) and 35.7% (n=34) of benign lesions were detected. Of the 61 lesions that were not detected, 46 (75.4%) were in density C, and 15 (24.6%) were in density D. The sensitivity, specificity, PPV, and NPV for DBT were 98.5%, 34.6%, 66.3%, and 94.7%, respectively. There were 65.2% (n=107/164) lesions detected on AB-MR, with 98.6% (n=68) malignant and 41.1% (39) benign lesions detected. The sensitivity, specificity, PPV, and NPV for AB-MR were 98.5%, 43.9%, 67.2%, and 96.2%, respectively. One malignant lesion (0.6%), which was a low-grade ductal carcinoma in-situ (DCIS), was missed on AB-MR. CONCLUSION: The present findings suggest that both DBT and AB-MR have comparable effectiveness as an imaging method for detecting breast cancer and have high NPV for low-risk lesions in women with dense breasts.


Assuntos
Neoplasias da Mama , Mamografia , Feminino , Humanos , Pessoa de Meia-Idade , Mamografia/métodos , Neoplasias da Mama/patologia , Densidade da Mama , Estudos Retrospectivos , Estudos Transversais , Imageamento por Ressonância Magnética/métodos
2.
Med J Malaysia ; 79(Suppl 1): 53-58, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38555886

RESUMO

INTRODUCTION: Food insecurity is often link with nutritional status. An increased rate of food insecurity can have a severe impact on children's growth. During the COVID-19 outbreak, little is known regarding its effect on food security and nutritional status, especially concerning vulnerable groups such as children. The purpose of this study was to assess household food security status, children's nutritional status along with their association, and the determinants of food insecurity during the COVID-19 pandemic. MATERIALS AND METHODS: This cross-sectional study was conducted from May to July 2022 in urban areas in Selangor among children aged less than two years old from B40 households using purposive sampling through both online surveys and face-to-face interviews. There were 112 children aged < 2 years old from B40 households participating in this study. The data obtained on maternal sociodemographic, Household Food Insecurity Scale (HFIAS), and children's anthropometric measurements were analysed by using the WHO Anthro Survey, descriptive analysis, Person's Chisquare test and Fischer's exact test. RESULTS: The prevalence of food insecurity was more significant than the prevalence of food secured, at 55.4% and 44.6% respectively. The stunting among the children rated at 34.8%, followed by 7.2% of the sample found underweight, 7.8% (BAZ) and 16.1% (BAZ) of them were wasted, and overweight & obese, proportionately. This study discovered that household size was the sole determinant of household food security status. This finding suggested that size of a household influenced the odds of a household being food insecure. CONCLUSION: The findings of this study provide insights into how the COVID-19 pandemic have an impact on children's nutritional status especially those from low-income and bigger size households. Therefore, more thorough and effective interventions should be designed particularly targeting this urban poor community to enhance their nutritional status and health.


Assuntos
COVID-19 , Pandemias , Criança , Humanos , Pré-Escolar , Estudos Transversais , Abastecimento de Alimentos , COVID-19/epidemiologia , Pobreza , Transtornos do Crescimento/epidemiologia , Transtornos do Crescimento/etiologia , Insegurança Alimentar
3.
Clin Gastroenterol Hepatol ; 20(10): 2296-2306.e6, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-34768009

RESUMO

BACKGROUND & AIMS: Globally, nonalcoholic fatty liver disease (NAFLD) is a common cause of chronic liver disease. We assessed the clinical presentation and patient-reported outcomes (PROs) among NAFLD patients from different countries. METHODS: Clinical, laboratory, and PRO data (Chronic Liver Disease Questionnaire-nonalcoholic steatohepatitis [NASH], Functional Assessment of Chronic Illness Therapy-Fatigue, and the Work Productivity and Activity Index) were collected from NAFLD patients seen in real-world practices and enrolled in the Global NAFLD/NASH Registry encompassing 18 countries in 6 global burden of disease super-regions. RESULTS: Across the global burden of disease super-regions, NAFLD patients (n = 5691) were oldest in Latin America and Eastern Europe and youngest in South Asia. Most men were enrolled at the Southeast and South Asia sites. Latin America and South Asia had the highest employment rates (>60%). Rates of cirrhosis varied (12%-21%), and were highest in North Africa/Middle East and Eastern Europe. Rates of metabolic syndrome components varied: 20% to 25% in South Asia and 60% to 80% in Eastern Europe. Chronic Liver Disease Questionnaire-NASH and Functional Assessment of Chronic Illness Therapy-Fatigue PRO scores were lower in NAFLD patients than general population norms (all P < .001). Across the super-regions, the lowest PRO scores were seen in Eastern Europe and North Africa/Middle East. In multivariate analysis adjusted for enrollment region, independent predictors of lower PRO scores included younger age, women, and nonhepatic comorbidities including fatigue (P < .01). Patients whose fatigue scores improved over time experienced a substantial PRO improvement. Nearly 8% of Global NAFLD/NASH Registry patients had a lean body mass index, with fewer metabolic syndrome components, fewer comorbidities, less cirrhosis, and significantly better PRO scores (P < .01). CONCLUSIONS: NAFLD patients seen in real-world practices in different countries experience a high comorbidity burden and impaired quality of life. Future research using global data will enable more precise management and treatment strategies for these patients.


Assuntos
Síndrome Metabólica , Hepatopatia Gordurosa não Alcoólica , Doença Crônica , Fadiga , Feminino , Fibrose , Humanos , Cirrose Hepática , Masculino , Síndrome Metabólica/epidemiologia , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Medidas de Resultados Relatados pelo Paciente , Prevalência , Qualidade de Vida , Sistema de Registros
4.
J Oncol Pharm Pract ; 28(2): 479-485, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34590528

RESUMO

INTRODUCTION: Hodgkin lymphoma is a highly curable lymphoproliferative malignancy with an overall relative survival rate of 87.4%. It is characterized by multinucleated Reed-Sternberg cells which are mostly derived from B cells in the germinal center. CASE REPORT: We present a case of a 40-year-old gentleman with acquired immunodeficiency syndrome who presented with Stage 4b Hodgkin lymphoma complicated with fulminant hepatic failure and direct hyperbilirubinemia. The initial presentation of Hodgkin lymphoma as cholestatic jaundice is extremely rare. MANAGEMENT AND OUTCOME: Though the survival rate with chemotherapy is high, the fulminant hepatic failure made the situation challenging with the use of chemotherapeutic regimens that require hepatic excretion. He received dose reduced adriamycin-bleomycin-vinblastine-dacarbazine regimen [doxorubicin 12.5 mg (6.75 mg/m2), bleomycin 18 units (10 units/m2), vinblastine 3 mg (1.5 mg/m2), dacarbazine 380 mg (190 mg/m2)] as well as bictegravir/emtricitabine/tenofovir alafenamide since admission for treatment of human immunodeficiency virus and hepatitis B. He started responding with the first cycle of dose reduced adriamycin-bleomycin-vinblastine-dacarbazine regimen with bilirubin levels trended down and normalized as well as his clinical condition improved. He received the full dose of adriamycin-bleomycin-vinblastine-dacarbazine on day 15. DISCUSSION: Our case report emphasizes that the early usage of dose reduced adriamycin-bleomycin-vinblastine-dacarbazine regimen can restore hepatic function and can achieve improvement in hepatic function allowing the delivery of full-dose chemotherapy.


Assuntos
Coinfecção , Hepatite B , Doença de Hodgkin , Falência Hepática Aguda , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bleomicina/uso terapêutico , Dacarbazina , Doxorrubicina/uso terapêutico , Redução da Medicação , HIV , Doença de Hodgkin/complicações , Doença de Hodgkin/tratamento farmacológico , Humanos , Falência Hepática Aguda/tratamento farmacológico , Masculino , Resultado do Tratamento , Vimblastina
5.
MMWR Morb Mortal Wkly Rep ; 69(46): 1748-1752, 2020 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-33211676

RESUMO

Pakistan and Afghanistan are the only countries where wild poliovirus type 1 (WPV1) is endemic (1,2). In 2019, Pakistan reported 147 WPV1 cases, approximately 12 times the number reported in 2018. As of September 15, 72 cases had been reported in 2020. Since 2019, WPV1 transmission has also spread from Pakistan's core poliovirus reservoirs (Karachi, Peshawar, and Quetta block) to southern districts of Khyber Pakhtunkhwa (KP), Punjab, and Sindh provinces. Further, an outbreak of circulating vaccine-derived poliovirus type 2 (cVDPV2), first detected in July 2019, has caused 22 paralytic cases in 2019 and 59 as of September 15, 2020, throughout the country. The coronavirus disease 2019 (COVID-19) pandemic has substantially reduced delivery of polio vaccines through essential immunization (formerly routine immunization) and prevented implementation of polio supplementary immunization activities (SIAs)* during March-July 2020. This report describes Pakistan's progress in polio eradication during January 2019-September 2020 and updates previous reports (1,3,4). The Pakistan polio program has reinitiated SIAs and will need large, intensive, high-quality campaigns with strategic use of available oral poliovirus vaccines (OPVs)† to control the surge and widespread transmission of WPV1 and cVDPV2.


Assuntos
Erradicação de Doenças , Poliomielite/prevenção & controle , Vigilância da População , Adolescente , Criança , Pré-Escolar , Humanos , Esquemas de Imunização , Lactente , Paquistão/epidemiologia , Poliomielite/epidemiologia , Vacinas contra Poliovirus/administração & dosagem , Vacinação/estatística & dados numéricos
6.
Nurs Crit Care ; 25(5): 269-276, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-31046179

RESUMO

BACKGROUND: Health care providers should be able to provide good quality end-of-life care. A tool to evaluate the positive and negative consequences of caring for dying patients is warranted. AIM: The aim of this study was to evaluate the psychometric properties of the Persian version of the End-of-Life Caregiving Experience Appraisal Scale (EOLCAS). METHODS: This research was conducted in two phases. Phase I: The World Health Organization Protocol of forward-backward translation and an expert panel in order to determine face and content validity. Phase II: Survey development with 310 nurses who worked in critical care units, construct validity (construct, convergent and divergent validity), internal consistency (average inter-item correlation, Cronbach's alpha and McDonald's omega) and construct reliability were evaluated. RESULTS: The exploratory factor analysis showed that the present scale (Persian version) has four factors: Negative physical-emotional and social consequences, transcendental communication, information deficits and future rumination, which explained 83.92% of the overall extracted variance. Convergent and divergent validity were confirmed for all factors. The internal consistency and construct reliability were acceptable. CONCLUSION: The scale has a multidimensional concept that is sufficiently reliable and the use of the scale would be helpful in measuring consequences of caring for dying patients. RELEVANCE TO CLINICAL PRACTICE: This scale makes a significant contribution in that it helps in the recognition of positive and negative consequences of critical care nurses' caring for dying patients.


Assuntos
Enfermagem de Cuidados Críticos , Psicometria/estatística & dados numéricos , Assistência Terminal/psicologia , Traduções , Adulto , Feminino , Humanos , Irã (Geográfico) , Masculino , Reprodutibilidade dos Testes , Inquéritos e Questionários
7.
Med J Malaysia ; 75(3): 226-234, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32467537

RESUMO

INTRODUCTION: Incentive spirometry (IS) is commonly used for increasing postoperative IS inspiratory capacity (ISIC) after open heart surgery (OHS). However, little is known about the serial changes in ISIC and their predictive factors. OBJECTIVE: The aim of this study is to identify the postoperative ISIC changes relative to preoperative ISIC after OHS, and determine their predictors, including patient characteristics factors and IS performance parameters such as inspiration volumes (ISv) and frequencies (ISf). METHODS: This is a prospective study with blinding procedures involving 95 OHS patients, aged 52.8±11.5 years, whose ISIC was measured preoperatively (PreopISIC) until fifth postoperative day (POD), while ISv and ISf monitored with an electronic device from POD1-POD4. Regression models were used to identify predictors of POD1 ISIC, POD2- POD5 ISIC increments, and the odds of attaining PreopISIC by POD5. RESULTS: The ISIC reduced to 41% on POD1, increasing thereafter to 57%, 75%, 91%, and 106% from POD2-POD5 respectively. Higher PreopISIC (B=-0.01) significantly predicted lower POD1 ISIC, and, together with hyperlipedemia (B=11.52), which significantly predicted higher POD1 ISIC, explained 13% of variance. ISv at relative percentages of PreopISIC from POD1-POD4 (BPOD1=0.60, BPOD2=0.56, BPOD3=0.49, BPOD4=0.50) significantly predicted ISIC of subsequent PODs with variances at 23%, 24%, 17% and 25% respectively, but no association was elicited for ISf. IS performance findings facilitated proposal of a postoperative IS therapy target guideline. Higher ISv (B=0.05) also increased odds of patients recovering to preoperative ISIC on POD5 while higher PreopISIC (B=- 0.002), pain (B=-0.72) and being of Indian race (B=-1.73) decreased its odds. CONCLUSION: ISv appears integral to IS therapy efficacy after OHS and the proposed therapy targets need further verification through randomized controlled trials.


Assuntos
Capacidade Inspiratória/fisiologia , Cuidados Pós-Operatórios , Espirometria , Cirurgia Torácica , Adulto , Feminino , Previsões , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Análise de Regressão
8.
MMWR Morb Mortal Wkly Rep ; 68(45): 1029-1033, 2019 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-31725710

RESUMO

Afghanistan and Pakistan are the only countries that continue to confirm ongoing wild poliovirus type 1 (WPV1) transmission (1). During January 2018-September 2019 the number of WPV1 cases in Pakistan increased, compared with the number during the previous 4 years. This report updates previous reports on Pakistan's polio eradication activities, progress, and challenges (2,3). In 2018, Pakistan reported 12 WPV1 cases, a 50% increase from eight cases in 2017, and a 31% increase in the proportion of WPV1-positive sites under environmental surveillance (i.e., sampling of sewage to detect poliovirus). As of November 7, 2019, 80 WPV1 cases had been reported, compared with eight cases by the same time in 2018. An intensive schedule of supplementary immunization activities (SIAs)* implemented by community health workers in the core reservoirs (i.e., Karachi, Peshawar, and Quetta) where WPV1 circulation has never been interrupted, and by mobile teams, has failed to interrupt WPV1 transmission in core reservoirs and prevent WPV1 resurgence in nonreservoir areas. Sewage samples have indicated wide WPV1 transmission in nonreservoir areas in other districts and provinces. Vaccine refusals, chronically missed children, community campaign fatigue, and poor vaccination management and implementation have exacerbated the situation. To overcome challenges to vaccinating children who are chronically missed in SIAs and to attain country and global polio eradication goals, substantial changes are needed in Pakistan's polio eradication program, including continuing cross-border coordination with Afghanistan, gaining community trust, conducting high-quality vaccination campaigns, improving oversight of field activities, and improving managerial processes to unify eradication efforts.


Assuntos
Erradicação de Doenças , Poliomielite/prevenção & controle , Vigilância da População , Criança , Pré-Escolar , Humanos , Programas de Imunização , Esquemas de Imunização , Lactente , Paquistão/epidemiologia , Poliomielite/epidemiologia , Poliovirus/isolamento & purificação , Vacina Antipólio Oral/administração & dosagem , Vacinação/estatística & dados numéricos
9.
Molecules ; 24(24)2019 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-31847377

RESUMO

In this study, microcellular polyurethane (PU)-natural fiber (NF) biocomposites were fabricated. Polyurethanes based on castor oil and PMDI were synthesized with varying volume ratios of sisal fiber. The effect of natural fiber treatment using water and alkaline solution (1.5% NaOH) and load effect were investigated. Biocomposites were mechanically and physically investigated using tensile, viscoelasticity, and water absorption tests. The interfacial adhesion between PU and sisal fiber was studied using SEM. Short NF loads (3%) showed a significant improvement in the mechanical properties of the PU-sisal composite such as modulus of elasticity, yield and tensile strength up to 133%, 14.35 % and 36.7% respectively. Viscoelastic measurements showed that the composites exhibit an elastic trend as the real compliance (J') values were higher than those of the imaginary compliance (J''). Increasing NF loads resulted in a decrease of J'. Applying variable temperatures (120-80 °C) caused an increase in the stiffness at different frequencies.


Assuntos
Poliuretanos/química , Têxteis/análise , Módulo de Elasticidade , Teste de Materiais , Estrutura Molecular , Reologia , Temperatura , Resistência à Tração
10.
Phys Chem Chem Phys ; 20(7): 5264-5273, 2018 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-29400385

RESUMO

Cu nanoparticles were deposited on the surface of commercial TiO2 nanoparticles (Cu-TiO2) using different methods aiming at the production of highly efficient visible light photocatalysts. Photocatalytic H2 evolution rates obtained from methanol/water mixtures revealed no significant influence of the presence of copper oxides on the photoreaction upon visible light illumination. The photocatalytic H2 production rates were evaluated upon illumination with different spectral ranges (≥420 nm or ≥500 nm) and the results evidenced that the visible light induced charge carrier formation on the Cu-TiO2 photocatalysts consists of two distinct pathways: the direct excitation of TiO2 and the induced excitation by the so-called surface plasmon resonance (SPR) effect of the Cu nanoparticles on the TiO2 surface. Both pathways are present when the full visible range of the spectrum is used (≥420 nm), while for illumination at longer wavelengths (≥500 nm), the photocatalytic activity is solely promoted by the Cu-SPR effect. Electron paramagnetic resonance (EPR) and laser flash photolysis measurements were performed to clarify the underlying mechanism of Cu-TiO2 photocatalysts upon visible light illumination.

11.
BMC Public Health ; 18(1): 921, 2018 07 27.
Artigo em Inglês | MEDLINE | ID: mdl-30053811

RESUMO

BACKGROUND: Dengue fever, caused by dengue virus (DENV), has become one of the most important mosquito-borne viral diseases with a steady rise in global incidence, including the Sudan. Sporadic cases and frequent acute febrile illness outbreaks, compatible with Dengue fever, have been reported in El-Gadarif State, Sudan. However, diagnosis was based almost exclusively on clinical signs without confirmatory laboratory investigations. Despite the magnitude of the problem in El-Gadarif State, no information is currently available with regard to the epidemiology of the disease in this State. El-Gadarif State is one of the largest commercial centers in the Sudan. The objective of the present investigation is to estimate the prevalence of DENV antibodies, and determine the potential risk factors associated with seropositivity among residents of El-Gadarif State. METHODS: A cross sectional study was conducted in a total of 701residents randomly selected from all 10 localities in El-Gadarif State. The sera from the 701 residents were tested for the presence of DENV-specific immunoglobulin G (IgG) antibodies using a commercially available Anti-dengue IgG enzyme-linked immunosorbent assay (ELISA). RESULTS: Among the 701 residents, 334 residents (47.6%) were seropositive for DENV. Mosquito control (OR = 2.73, CI = 1.37-5.87, p-value = 0.001); low income (OR = 2.31, CI: 1.71-6.36, p value = 0.032); sleeping out-doors (OR = 3.73, CI = 2.63-6.23, p-value = 0.013), and localities were determined as potential risk factors for contracting DENV infection. CONCLUSIONS: The prevalence rate of DENV antibodies among residents of El-Gadarif State is significantly high (47.6%). Further epidemiologic studies including, distribution of mosquito vectors and implementation of improved surveillance are urgently warranted for better prediction and prevention of a possible DENV outbreak in El-Gadarif State, Sudan.


Assuntos
Anticorpos Antivirais/sangue , Vírus da Dengue/imunologia , Dengue/epidemiologia , Controle de Mosquitos/estatística & dados numéricos , Idoso , Animais , Pré-Escolar , Estudos Transversais , Dengue/sangue , Surtos de Doenças/prevenção & controle , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pobreza/estatística & dados numéricos , Prevalência , Fatores de Risco , Testes Sorológicos , Sudão/epidemiologia
13.
Epidemiol Infect ; 144(10): 2200-8, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-26941114

RESUMO

We studied the prevalence of Helicobacter pylori virulence markers, e.g. cytotoxin associated gene (cagA), cagA promoter, vacuolating associated cytotoxin A (vacA) alleles induced by contact with epithelium (iceA type), and outer membrane protein Q (hopQ) in expatriates and compared them with those in local residents. Gastric biopsies were obtained at endoscopy for culture, histology and PCR for virulence marker and hopQ. Of 309 patients, 236 (76%) were males with a mean age of 45 years. A total of 102 patients were expatriates. hopQ type 1 was present in 98 (47%) local residents compared to 88 (86%) expatriates (P < 0·001), while hopQ type 2 was present in 176 (85%) local residents, compared to 60 (59%) expatriates (P < 0·001). H. pylori virulence marker cagA was positive in 97 (47%) local residents compared to 86 (84%) expatriates (P < 0·001) while cagA-P was positive in 72 (35%) local residents compared to 87 (85%) expatriates (P < 0·001). iceA type 1 was positive in 157 (76%) local residents compared to 45 (44%) expatriates (P < 0·001), while iceA type 2 was positive in 81 (39%) local residents compared to 86 (84%) expatriates (P < 0·001). Distribution of H. pylori cagA, cagA promoter, iceA and hopQ type in local residents and expatriates was different. H. pylori virulence markers were associated with severe pathology in expatriates.


Assuntos
Proteínas da Membrana Bacteriana Externa/genética , Infecções por Helicobacter/epidemiologia , Helicobacter pylori/genética , Helicobacter pylori/patogenicidade , Adolescente , Adulto , Idoso , Biomarcadores/análise , Feminino , Infecções por Helicobacter/microbiologia , Humanos , Masculino , Pessoa de Meia-Idade , Paquistão/epidemiologia , Análise de Sequência de DNA , Virulência , Adulto Jovem
14.
BMC Complement Altern Med ; 16(1): 488, 2016 Nov 29.
Artigo em Inglês | MEDLINE | ID: mdl-27899097

RESUMO

BACKGROUND: Melastoma malabathricum L. (family Melastomaceae) has been traditionally used as remedies against various ailments including those related to pain. The methanol extract of M. malabathricum leaves has been proven to show antinociceptive activity. Thus, the present study aimed to determine the most effective fraction among the petroleum ether- (PEMM), ethyl acetate- (EAMM) and aqueous- (AQMM) fractions obtained through successive fractionation of crude, dried methanol extract of M. malabathricum (MEMM) and to elucidate the possible mechanisms of antinociception involved. METHODS: The effectiveness of fractions (100, 250 and 500 mg/kg; orally) were determine using the acetic acid-induced abdominal constriction test and the most effective extract was further subjected to the hot plate- or formalin-induced paw licking-test to establish its antinociceptive profile. Further elucidation of the role of opioid and vanilloid receptors, glutamatergic system, and nitric oxide/cyclic guanosine phosphate (NO/cGMP) pathway was also performed using the appropriate nociceptive models while the phytoconstituents analyses were performed using the phytochemical screening test and, HPLC-ESI and GCMS analyses. RESULTS: PEMM, EAMM and AQMM significantly (p < 0.05) attenuated acetic acid-induced nociception with the recorded EC50 of 119.5, 125.9 and 352.6 mg/kg. Based on the EC50 value, PEMM was further studied and also exerted significant (p < 0.05) antinociception against the hot plate- and formalin-induced paw licking-test. With regards to the mechanisms of antinociception,: i) PEMM significantly (p < 0.05) attenuated the nociceptive action in capsaicin- and glutamate-induced paw licking test.; ii) naloxone (5 mg/kg), a non-selective opioid antagonist, failed to significantly (p < 0.05) inhibit PEMM's antinociception iii) L-arginine (a nitric oxide precursor), but not NG-nitro-L-arginine methyl esters (L-NAME; an inhibitor of NO synthase), methylene blue (MB; an inhibitor of cGMP), or their respective combination, significantly (p < 0.05) reversed the antinociception of PEMM. Phytochemical analyses revealed the presence of several antinociceptive-bearing bioactive compounds, such as triterpenes and volatile compounds like oleoamide and palmitic acid. The presence of low flavonoids, such as gallocatechin and epigallocatechin, saponins and tannins in PEMM might synergistically contribute to enhance the major compounds antinociceptive effect. CONCLUSION: PEMM exerted a non-opioid-mediated antinociceptive activity at the central and peripheral levels via the inhibition of vanilloid receptors and glutamatergic system, and the activation of NO-mediated/cGMP-independent pathway. Triterpenes, as well as volatile oleoamide and palmitic acid, might be responsible for the observed antinociceptive activity of PEMM.


Assuntos
Analgésicos/isolamento & purificação , Melastomataceae/química , Dor/tratamento farmacológico , Extratos Vegetais/farmacologia , Alcanos , Analgésicos/farmacologia , Analgésicos/toxicidade , Animais , Cromatografia Líquida de Alta Pressão , Modelos Animais de Doenças , Cromatografia Gasosa-Espectrometria de Massas , Masculino , Melastomataceae/toxicidade , Metanol , Camundongos , Camundongos Endogâmicos ICR , Dor/etiologia , Compostos Fitoquímicos , Extratos Vegetais/toxicidade , Folhas de Planta/química , Ratos , Ratos Sprague-Dawley , Solventes , Canais de Cátion TRPV/antagonistas & inibidores
17.
J Viral Hepat ; 22 Suppl 4: 4-20, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26513445

RESUMO

Detailed, country-specific epidemiological data are needed to characterize the burden of chronic hepatitis C virus (HCV) infection around the world. With new treatment options available, policy makers and public health officials must reconsider national strategies for infection control. In this study of 15 countries, published and unpublished data on HCV prevalence, viraemia, genotype, age and gender distribution, liver transplants and diagnosis and treatment rates were gathered from the literature and validated by expert consensus in each country. Viraemic prevalence in this study ranged from 0.2% in Iran and Lebanon to 4.2% in Pakistan. The largest viraemic populations were in Pakistan (7 001 000 cases) and Indonesia (3 187 000 cases). Injection drug use (IDU) and a historically unsafe blood supply were major risk factors in most countries. Diagnosis, treatment and liver transplant rates varied widely between countries. However, comparison across countries was difficult as the number of cases changes over time. Access to reliable data on measures such as these is critical for the development of future strategies to manage the disease burden.


Assuntos
Hepacivirus/isolamento & purificação , Hepatite C Crônica/epidemiologia , Hepatite C Crônica/virologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Antivirais/uso terapêutico , Criança , Pré-Escolar , Feminino , Genótipo , Saúde Global , Hepacivirus/classificação , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/terapia , Humanos , Lactente , Recém-Nascido , Transplante de Fígado , Masculino , Pessoa de Meia-Idade , Prevalência , Adulto Jovem
18.
MMWR Morb Mortal Wkly Rep ; 64(33): 913-7, 2015 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-26313474

RESUMO

In 1988, the World Health Assembly of the World Health Organization (WHO) resolved to eradicate polio worldwide. Among the three wild poliovirus (WPV) types (type 1, type 2, and type 3), WPV type 2 (WPV2) has been eliminated in the wild since 1999, and WPV type 3 (WPV3) has not been reported since 2012. In 2015, only Afghanistan and Pakistan have reported WPV transmission. On May 25, 2015, all WHO Member States endorsed World Health Assembly resolution 68.3 on full implementation of the Polio Eradication and Endgame Strategic Plan 2013-2018 (the Endgame Plan), and with it, the third Global Action Plan to minimize poliovirus facility-associated risk (GAPIII). All WHO Member States have committed to implementing appropriate containment of WPV2 in essential laboratory and vaccine production facilities* by the end of 2015 and of type 2 oral poliovirus vaccine (OPV2) within 3 months of global withdrawal of OPV2, which is planned for April 2016. This report summarizes critical steps for essential laboratory and vaccine production facilities that intend to retain materials confirmed to contain or potentially containing type-specific WPV, vaccine-derived poliovirus (VDPV), or OPV/Sabin viruses, and steps for nonessential facilities† that process specimens that contain or might contain polioviruses. National authorities will need to certify that the essential facilities they host meet the containment requirements described in GAPIII. After certification of WPV eradication, the use of all OPV will cease; final containment of all polioviruses after polio eradication and OPV cessation will minimize the risk for reintroduction of poliovirus into a polio-free world.


Assuntos
Contenção de Riscos Biológicos , Erradicação de Doenças , Guias como Assunto , Poliomielite/prevenção & controle , Organização Mundial da Saúde , Saúde Global , Humanos , Poliovirus/classificação , Vacina Antipólio Oral/administração & dosagem
19.
Clin Exp Obstet Gynecol ; 42(2): 161-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26054110

RESUMO

OBJECTIVE: To assess the prevalence of menopausal-related symptoms and to evaluate their impact on quality of life (QoL) among a sample of menopausal women from Egypt. MATERIALS AND METHODS: A cross-sectional hospital-based study conducted at the Gynecology department, Suez Canal University, Ismailia - Egypt. A total 1,214 women aged 40 - 70 years were recruited and studied using an interview questionnaire. The questionnaire contains four main items: socio-demographic data, menstruation status assessment, modified Menopausal Rating Scale (MRS), and World Health Organization Quality of Life (WHOQOL-BREF) questionnaire. RESULTS: Mean age was 48.1 ± 10.3 years, with 26.6% of the studied participants were illiterates. According to menstruation status, 40.9% of the studied women were postmenopausal, 41.4% were premenopausal, while 17.7% were perimenopausal. Most of the studied participants have mild/moderate somatic symptoms. Mild/moderate depressive mode, irritability, and anxiety have been reported in 63%, 58.4%, and 58.2% of women, respectively. Postmenopausal women have significantly higher scores on MRS except for urogenital score that was higher in perimenopausal women. They also had significantly lower QoL score in all subscales of WHOQOL-BREF except for psychological domain that was lowest among perimenopausal women. MRS total score has significant negative correlation to all domains of WHOQOL questionnaire. CONCLUSION: Postmenopausal women have higher prevalence of menopausal symptoms that significantly affect their quality of life more than pre- and perimenopausal women. Those in the transition period (perimenopausal) have higher prevalence of psychological symptoms with higher impact on their psychological welfare.


Assuntos
Menopausa/psicologia , Qualidade de Vida , Adulto , Idoso , Estudos Transversais , Egito/epidemiologia , Feminino , Fogachos/epidemiologia , Humanos , Pessoa de Meia-Idade , Pré-Menopausa , Prevalência , Inquéritos e Questionários
20.
Clin Exp Obstet Gynecol ; 42(2): 212-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26054122

RESUMO

AIMS: To assess incidence and risk factors of intimate partner violence (IPV) during pregnancy among a sample of women from Egypt and to evaluate its impact on maternal and fetal adverse health outcomes. MATERIALS AND METHODS: After obtaining ethical approval, a total of 1,857 women aged 18 - 43 years completed the study and were investigated using an interview questionnaire. The questionnaire contains five main items: demographic characteristics of women, intimate partner characteristics, assessment of IPV during current pregnancy, and assessment of maternal as well as fetal/neonatal adverse outcomes. Women were also examined to detect signs of violence and identify injuries. RESULTS: Exposure to IPV during pregnancy was reported among 44.1% of the studied women. Emotional violence was the most common form. Women exposed to violence were of younger age, higher parity, and lower educational level. Their partners were older, less educated, and more likely to be addicted to drugs and alcohol. Women were also found to have significantly higher incidence of adverse pregnancy outcomes (miscarriage, preterm labor, and premature rupture of membrane), and fetal/neonatal adverse outcomes (fetal distress, fetal death, and low birth weight). A total of 297 cases had been exposed to physical violence (15.9%) vs 32.6% and 10% exposed to emotional and sexual violence, respectively. The most common form of physical violence was kicking. CONCLUSION: Violence during pregnancy is prevalent among Egyptian women. Exposure to violence was a significant risk factor for multiple adverse maternal and fetal health outcomes.


Assuntos
Sofrimento Fetal/epidemiologia , Complicações na Gravidez/epidemiologia , Maus-Tratos Conjugais/estatística & dados numéricos , Aborto Espontâneo/epidemiologia , Adolescente , Adulto , Egito/epidemiologia , Feminino , Morte Fetal , Humanos , Incidência , Recém-Nascido de Baixo Peso , Recém-Nascido , Trabalho de Parto Prematuro/epidemiologia , Gravidez , Resultado da Gravidez , Prevalência , Fatores de Risco , Parceiros Sexuais , Adulto Jovem
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