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1.
Acta Chir Belg ; 119(6): 406-410, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31204903

RESUMO

Introduction: Many different approaches for the repair of a perineal hernia (PH) after abdomino-perineal rectum amputation (APR) have been described throughout the years. Literature shows us that the use of a mesh had the best results with relatively low rates of recurrence compared to primary suture. Yet there is still no consensus on the best technique for fixation of the mesh in the perineal cavity. Methods: We want to introduce an addition to the surgical repair technique, using laparoscopic glue to ensure a solid fixation of the mesh. This is to prevent small bowel from sliding into the perineal area due to the high abdominal pressure when standing and to avoid the difficulties and risks of laparoscopical suturing in this area. Results: This use of glue for fixation of the mesh has been successful in the three cases described, with no recurrence after one-year follow-up. Conclusion: A recurrent PH can be prevented by a solid fixation of the mesh using the technique of a glued mesh repair. This technique shows to be easy, fast and without recurrence.


Assuntos
Adenocarcinoma/terapia , Hérnia/etiologia , Herniorrafia/métodos , Períneo/cirurgia , Protectomia/efeitos adversos , Neoplasias Retais/terapia , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Telas Cirúrgicas , Técnicas de Sutura , Adesivos Teciduais/uso terapêutico
2.
Public Health ; 165: 42-47, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30368167

RESUMO

OBJECTIVES: Cigarillo smoking has been associated with many adverse outcomes; however, little is known about its use in Canada. The aim of this study was to assess the prevalence and characteristics of ever and the current use of cigarillo in Canada. STUDY DESIGN: This study was a cross-sectional study. METHODS: This study was a secondary data analysis of the 2012 cycle of the Canadian Tobacco Use Monitoring Survey collected by Statistics Canada, examining tobacco use among Canadians aged 15 years or older in all 10 provinces. The two main outcomes of the present study were 'ever use' and 'current use' of cigarillos. Covariates examined included the following: demographic factors, socio-economic factors, and smoking-related factors. RESULTS: The overall prevalence of ever and current cigarillo smoking were 38.4% and 3.1%, respectively. Factors that had the highest association with cigarillo smoking included being a male and being young. Cigarette and marijuana use were also associated with increased use of cigarillo. Specifically, marijuana users were at two-fold increase of the current cigarillo smoking (odds ratio = 2.18, 95% confidence interval: 1.97-2.41). CONCLUSIONS: This study highlights the importance of correcting public perception about cigarillos and directing government resources to prevent an increase in their use.


Assuntos
Fumar/epidemiologia , Produtos do Tabaco/estatística & dados numéricos , Adolescente , Adulto , Canadá/epidemiologia , Estudos Transversais , Feminino , Inquéritos Epidemiológicos , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Adulto Jovem
3.
J Appl Microbiol ; 119(2): 331-41, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25891038

RESUMO

AIMS: Epidemiology of melioidosis is poorly understood because its occurrence is influenced by complex interaction of environmental, climatic, physicochemical and host factors. We investigated the potential risk factors for the exposure to Burkholderia pseudomallei in small ruminants' farms in Peninsular Malaysia. METHODS AND RESULTS: Melioidosis-positive (n = 33) and negative (n = 27) farms were selected and visited for interviews and environmental samples collection. The characteristics and putative disease risk factors were compared between the case and the control farms using Chi-square test and logistic regression analysis. The multivariable logistic regression analysis showed that the odds of melioidosis were significantly higher in farms that had bush clearing around farms (odds ratio (OR) = 6.61, 95% confidence interval (CI) = 1.12-38.84, P = 0.037), in farms with B. pseudomallei present in the soil (OR = 6.23, 95% CI = 1.03-37.68, P = 0.046), in farms that have other animal species present (OR = 7.96, 95% CI = 1.14-55.99, P = 0.037) and in farms that had flooding or waterlogging conditions (OR = 11.95, 95% CI = 1.39-102.6, P = 0.024) when compared to the odds of the disease in farms that did not have the above conditions. The odds of the disease in farms that treated their soils with lime were significantly lower (OR = 0.028, 95% CI = 0.003-0.29, P = 0.003) compared to the odds in those that did not. CONCLUSIONS: The risk factors for the exposure to B. pseudomallei highlighted above may have contributed to the occurrence of melioidosis in animals in the study farms. SIGNIFICANCE AND IMPACT OF THE STUDY: Information from the study may be helpful in planning control measures against melioidosis and have improved understanding of the epidemiology of the disease in livestock farms.


Assuntos
Burkholderia pseudomallei/fisiologia , Doenças das Cabras/epidemiologia , Melioidose/veterinária , Doenças dos Ovinos/epidemiologia , Criação de Animais Domésticos , Animais , Burkholderia pseudomallei/genética , Burkholderia pseudomallei/isolamento & purificação , Estudos de Casos e Controles , Feminino , Doenças das Cabras/microbiologia , Cabras , Malásia/epidemiologia , Masculino , Melioidose/epidemiologia , Melioidose/microbiologia , Fatores de Risco , Ovinos , Doenças dos Ovinos/microbiologia , Microbiologia do Solo , Microbiologia da Água
4.
West Afr J Med ; 34(1): 50-4, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26902817

RESUMO

BACKGROUND: Survival among extremely low birth weight (ELBW) babies (birth weight below 1000grams) in resource limited settings is still very low. The study aimed to determine the correlation between materno-foetal factors and outcome in this category of neonates. STUDY DESIGN: A retrospective study in which patients' records admitted into the Neonatal Unit of Ahmadu Bello University Teaching Hospital between January 2005 and December 2014 were retrieved. Information on neonates weighing < 1000 g were extracted and analyzed. Survival at discharge was the primary outcome. RESULTS: The overall survival rate of extremely low birth weight babies was 18%. Mortality in ELBW neonates weighing less than 750g was 100%. Factors that were significantly predictive of survival were birth weight, parity and duration of hospital stay with p-values of 0.014, 0.039 and 0.025 respectively CONCLUSION: The survival rate of ELBW babies remains low in our resource constrained setting. Focus should be on preventing preterm deliveries and as well equipping newborn care providers and newborn units with the necessary skills and materials respectively to enable implementation of evidence based interventions to improve newborn survival.

5.
Niger Postgrad Med J ; 22(1): 21-4, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25875407

RESUMO

AIMS AND OBJECTIVES: Nasal bubble continuous positive airway pressure (NBCPAP) respiratory support, though decades old, is beginning to gain popularity in developing countries including Nigeria. We reviewed neonates who benefitted from NBCPAP, to describe the demographics and outcome of NBCPAP respiratory support in newborns admitted to the neonatal unit of Ahmadu Bello University Teaching Hospital (ABUTH), Zaria, over a one year period. MATERIALS AND METHODS: The study is a descriptive observational review of all neonates who required NBCPAP respiratory support in the neonatal unit of ABUTH Zaria. Data was extracted from a specifically designed proforma used to obtain information on each neonate throughout the period of admission. RESULTS: Twenty babies received NBCPAP respiratory support during the period of study. Seventeen (85%) of the neonates were successfully weaned off CPAP while three (15%) failed CPAP. Three neonates developed complications with two having CPAP belly syndrome and the third had facial swelling which resolved spontaneously after 6 hours. Overall, seven (41%) of the neonates who were successfully weaned off CPAP were discharged home. CONCLUSION: MajorityofnewbornswhorequirerespiratorysupportwillbenefitfromNBCPAP therefore, this method of respiratory support should be popularized and neonatal units in the country should be supported to efficiently offer the service.

6.
Reprod Biomed Online ; 29(3): 333-9, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24929674

RESUMO

This study included 173 young couples of proven fertility who had previously undergone preimplantation genetic screening for chromosomes X and Y for family balancing. Several months later, when the outcome of the pregnancies was already known, the blastomeres from the corresponding embryos transferred were reanalysed by fluorescence in-situ hybridization (FISH) for chromosomes 13, 16, 18, 21, 22 with the aim of investigating correlation with embryo viability and the level of FISH sensitivity (embryos confirmed to be euploid). According to the results, informative in 152 couples, the proportion of euploid embryos was significantly lower in 53 nonpregnant women when compared with 99 women with term pregnancy (49% versus 75% respectively, P < 0.001). In addition, in 21 nonpregnant patients, all embryos transferred were found to be chromosomally abnormal. The level of FISH sensitivity was calculated in the group of term pregnancies where the number of euploid embryos was expected to exceed or match with the number of babies born. The resulting false-negative rate was 4.0% per patient and 1.9% per embryo. These findings confirmed the limited prediction power of embryo morphology on implantation but also the relevance of chromosomal abnormalities in causing embryo demise.


Assuntos
Aberrações Cromossômicas , Paridade , Diagnóstico Pré-Implantação/métodos , Técnicas de Reprodução Assistida , Análise para Determinação do Sexo/métodos , Pré-Seleção do Sexo/métodos , Adulto , Feminino , Humanos , Hibridização in Situ Fluorescente , Masculino , Gravidez
7.
Toxicon ; 243: 107732, 2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38642905

RESUMO

Catuneragam nilotica has been used in ethnomedicine to treat snakebite, inflammation, and diarrhea among others. The aim of this research is to isolate, and characterize potential potential phospholipase A2 (PLA2) inhibitors from the roots of C. nilotica. The plant material was collected, authenticated, and sequentially extracted using solvents of increasing polarity starting from n-hexane, ethyl acetate, and methanol. The extracts as reported in our previous work, were screened in vitro for their inhibitory activity against PLA2 enzyme from N. nigricollis venom using acidimetric assay. In line with the bio-activity guided isolation, methanol extract (being the most active) was subjected to chromatographic separation using silica gel and sephadex LH-20 which resulted in the isolation and characterization of scopoletin, and scopolin; the compounds were able to inhibit the hydrolytic actions of PLA2 enzyme with percentage inhibition ranging from 67.82 to 100.00 % and 65.76-93.15 %, respectively while the standard Antisnake Venom (ASV) had 74.96-85.04 % after 10 min incubation at 37 °C. The molecular docking of the compounds against PLA2 enzyme was performed using Auto Dock Vina while ADME-Tox analysis was evaluated using swissADME and ProTox-II online servers; The findings indicated that both compounds were able to bind to the active site of PLA2 enzyme with high affinity (-6.5 to -6.2 kcal/mol) and they exhibited favorable drug-likeness and pharmacokinetic properties, and according to toxicity predictions, scopolin was found to be non-toxic (LD50 of 5000 mg/kg) while scopoletin has a slight chance of being toxic (LD50 of 3800 mg/kg). In conclusion, the findings of the research revealed that the roots of C. nilotica contains phytoconstituents with anti-PLA2 enzyme activity and thus, validates the ethnomedicinal claim of the use of the plant as herbal therapy against N. nigricollis envenomation.


Assuntos
Simulação de Acoplamento Molecular , Inibidores de Fosfolipase A2 , Fosfolipases A2 , Raízes de Plantas , Escopoletina , Animais , Raízes de Plantas/química , Fosfolipases A2/química , Escopoletina/farmacologia , Inibidores de Fosfolipase A2/farmacologia , Naja , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Venenos Elapídicos/enzimologia , Venenos Elapídicos/química
8.
Am J Cancer Res ; 14(5): 1957-1980, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38859839

RESUMO

Cancer disease is the second leading cause of death worldwide. In 2023, about 2 million new cancer cases and 609,820 cancer deaths are projected to occur in the United States. The driving forces of cancer progression and metastasis are widely varied and comprise multifactorial events. Although there is significant success in treating cancer, patients still present with tumors at advanced stages. Therefore, the discovery of novel oncologic pathways has been widely developed. Tumor cells communicate with each other through small extracellular vesicles (sEVs), which contribute to tumor-stromal interaction and promote tumor growth and metastasis. sEV-specific inhibitors are being investigated as a next-generation cancer therapy. A literature search was conducted to discuss different options for targeting sEV pathways in cancer cells. However, there are some challenges that need to be addressed in targeting sEVs: i) specificity and toxicity of sEV inhibitor, ii) targeted delivery of sEV inhibitors, iii) combination of sEV inhibitors with current standard chemotherapy to improve patients' clinical outcomes, and iv) data reproducibility and applicability at distinct levels of the disease. Despite these challenges, sEV inhibitors have immense potential for effectively treating cancer patients.

9.
Oper Dent ; 49(1): 11-19, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38180467

RESUMO

OBJECTIVES: The objective of this prospective double-blind clinical trial was to compare clinical outcomes of indirect pulp capping restorative protocols on permanent teeth over a 12-month period. METHODS AND MATERIALS: Deep carious lesions in permanent teeth (90) were randomly assigned to three indirect pulp capping protocols (n=30: TheraCal LC, Dycal, and no liner). All teeth were restored with resin composite. The outcome measures were pain (VAS scale) and success rate (pulp vitality based on percussion, palpation, cold test, and radiographic findings), collected at screening, intervention, and 24-hour, 7-day, 3-month, 6-month, and 12-month follow-up visits. RESULTS: There was no statistically significant difference in tooth sensitivity among the three indirect pulp capping protocols nor in success rates among the restorative protocols after 1 year of follow-up (p>0.1).The respective success rates, as defined by the tooth remaining vital, after 1 year were: 96.2% for TheraCal LC, 100% for Dycal, and 100% for no liner. CONCLUSIONS: After 12-month evaluation, the success rate of indirect pulp capping therapy on permanent teeth was not affected by the pulp capping restorative protocol.


Assuntos
Resinas Compostas , Capeamento da Polpa Dentária , Resinas Compostas/uso terapêutico , Estudos Prospectivos , Humanos
10.
Psychol Med ; 43(7): 1511-20, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23084321

RESUMO

BACKGROUND: The prevalence of mental disorders among prisoners is considerably higher than in the general population. This is an important public health issue as the vast majority of prisoners stay in custody for less than 9 months and, when not in prison, offenders' lifestyles are frequently chaotic, characterized by social exclusion, instability and unemployment. Multi-disciplinary mental health inreach services were introduced to target care towards prisoners with severe mental illness (SMI) in a similar way to that provided by Community Mental Health Teams outside prison. The aim was to establish the proportion of prisoners with SMI who were assessed and managed by prison mental health inreach services. Method A two-phase prevalence survey in six prisons in England measured SMI upon reception into custody. Case-note review established the proportion of those with SMI subsequently assessed and treated by inreach services. RESULTS: Of 3492 prisoners screened, 23% had SMI. Inreach teams assessed only 25% of these unwell prisoners, and accepted just 13% onto their caseloads. CONCLUSIONS: Inreach teams identified and managed only a small proportion of prisoners with SMI. Prison-based services need to improve screening procedures and develop effective care pathways to ensure access to appropriate services. Improved identification of mental illness is needed in both the community and the Criminal Justice System to better engage with socially transient individuals who have chaotic lifestyles and complex needs.


Assuntos
Transtorno Bipolar/epidemiologia , Transtorno Depressivo Maior/epidemiologia , Serviços de Saúde Mental/estatística & dados numéricos , Prisioneiros/estatística & dados numéricos , Transtornos Psicóticos/epidemiologia , Esquizofrenia/epidemiologia , Adulto , Transtorno Bipolar/diagnóstico , Transtorno Bipolar/terapia , Transtorno Depressivo Maior/diagnóstico , Transtorno Depressivo Maior/terapia , Inglaterra/epidemiologia , Feminino , Psiquiatria Legal/estatística & dados numéricos , Necessidades e Demandas de Serviços de Saúde , Humanos , Masculino , Prevalência , Prisioneiros/psicologia , Transtornos Psicóticos/diagnóstico , Transtornos Psicóticos/terapia , Esquizofrenia/diagnóstico , Esquizofrenia/terapia
11.
Epidemiol Infect ; 141(7): 1481-7, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23414617

RESUMO

A cross-sectional study was conducted from 10 January to 9 April 2012, to determine the seroprevalence of tuberculosis (TB) of all captive Asian elephants and their handlers in six locations in Peninsular Malaysia. In addition, trunk-wash samples were examined for tubercle bacillus by culture and polymerase chain reaction (PCR). For 63 elephants and 149 elephant handlers, TB seroprevalence was estimated at 20.4% and 24.8%, respectively. From 151 trunkwash samples, 24 acid-fast isolates were obtained, 23 of which were identified by hsp65-based sequencing as non-tuberculous mycobacteria. The Mycobacterium tuberculosis-specific PCR was positive in the trunk-wash samples from three elephants which were also seropositive. Conversely, the trunk wash from seven seropositive elephants were PCR negative. Hence, there was evidence of active and latent TB in the elephants and the high seroprevalence in the elephants and their handlers suggests frequent, close contact, two-way transmission between animals and humans within confined workplaces.


Assuntos
Animais de Zoológico , Elefantes , Tuberculose/veterinária , Zoonoses/epidemiologia , Animais , Antígenos de Bactérias/sangue , Biomarcadores/sangue , Estudos Transversais , DNA Bacteriano/análise , Humanos , Testes de Liberação de Interferon-gama , Malásia/epidemiologia , Mycobacterium tuberculosis/genética , Mycobacterium tuberculosis/imunologia , Mycobacterium tuberculosis/isolamento & purificação , Reação em Cadeia da Polimerase , Prevalência , Risco , Estudos Soroepidemiológicos , Tuberculose/diagnóstico , Tuberculose/epidemiologia , Tuberculose/transmissão , Zoonoses/transmissão
12.
Trop Biomed ; 40(3): 301-306, 2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37897162

RESUMO

Porcine circovirus type 4 (PCV4) is the newest member in the porcine circovirus family, first reported in 2020. To date, the presence of PCV4 has only been reported in China, South Korea and most recently in Thailand. Detection of PCV4 have been reported in various production stages of pigs from piglets, finishers to sows; associated with a myriad of clinical manifestations including porcine dermatitis and nephropathy syndrome (PDNS), postweaning multisystemic wasting syndrome (PMWS), respiratory, enteric and neurological diseases. While successful virus isolation and culture has yet to be reported, pathogenicity of PCV4 has been demonstrated through infectious clone studies. The objective of this study is to investigate the presence of PCV4 in Malaysian porcine population to update the epidemiology of porcine circoviruses in Malaysia. A total of 49 samples from commercial intensive pig farms, abattoir and wild boar population were subjected to conventional polymerase chain reaction assay to detect PCV4 capsid (cap) genome. Resulting cap nucleotide sequences were analyzed for maximum likelihood phylogeny relationship. Results revealed that PCV4 is present in Peninsular Malaysia at a molecular prevalence of 4.08% (2 / 49 samples). Both PCV4 positive samples originated from clinically healthy finishers. Malaysian PCV4 strains were classified as genotype PCV4b, and were found to be phylogenetically distinct from the China, South Korea and Thailand strains. With this latest update of the novel PCV4 in Malaysia, it is clear that more attention needs to be given to the investigation of novel porcine circoviruses (PCV) and management of PCV diseases.


Assuntos
Infecções por Circoviridae , Circovirus , Doenças dos Suínos , Suínos , Animais , Doenças dos Suínos/epidemiologia , Circovirus/genética , Malásia/epidemiologia , Infecções por Circoviridae/epidemiologia , Infecções por Circoviridae/veterinária , Infecções por Circoviridae/genética , Sequência de Bases , Proteínas do Capsídeo/genética , Filogenia
13.
J Appl Microbiol ; 113(5): 1184-95, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22906187

RESUMO

AIMS: This study determined the risk factors and characteristics of vancomycin-resistant Enterococci (VRE) among individuals working with animals in Malaysia. METHODS AND RESULTS: Targeted cross-sectional studies accompanied with laboratory analysis for the identification and characterization of resistance and virulence genes and with genotype of VRE were performed. VRE were detected in 9·4% (95% CI: 6·46-13·12) of the sampled populations. Enterococcus faecium, Enterococcus faecalis and Enterococcus gallinarum were isolated, and vanA was detected in 70% of the isolates. Enterococcus faecalis with vanB was obtained from one foreign poultry worker. At least one virulence gene was detected in >50% of Ent. faecium and Ent. faecalis isolates. The esp and gelE genes were common among Ent. faecium (58·3%) and Ent. faecalis (78%), respectively. The VRE species showed diverse RAPD profiles with some clustering of strains based on the individual's background. However, the risk factors found to be significantly associated with the prevalence of VRE were age (OR: 5·39, 95% CI: 1·98-14·61) and previous hospitalization (OR: 4·06, 95% CI: 1·33-12·35). CONCLUSION: VRE species isolated from individuals in this study have high level of vancomycin resistance, were genetically diverse and possessed the virulence traits. Age of individuals and history of hospitalization rather than occupational background determined VRE colonization. SIGNIFICANCE AND IMPACT OF THE STUDY: This study provides comprehensive findings on the epidemiological and molecular features of VRE among healthy individuals working with animals.


Assuntos
Enterococcus/genética , Enterococcus/isolamento & purificação , Resistência a Vancomicina , Adulto , Agricultura , Animais , Estudos Transversais , DNA Bacteriano/isolamento & purificação , Enterococcus/efeitos dos fármacos , Enterococcus/patogenicidade , Feminino , Genótipo , Infecções por Bactérias Gram-Positivas/epidemiologia , Infecções por Bactérias Gram-Positivas/microbiologia , Humanos , Malásia/epidemiologia , Masculino , Fenótipo , Aves Domésticas , Prevalência , Técnica de Amplificação ao Acaso de DNA Polimórfico , Fatores de Risco , Estudantes , Suínos , Médicos Veterinários , Fatores de Virulência/genética
14.
East Mediterr Health J ; 18(3): 294-7, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22574486

RESUMO

Schistosomiasis of the spinal cord is an uncommon but potentially curable form of schistosomiasis, if diagnosed and managed early. The spinal cord is more frequently affected in Schistosoma mansoni or S. haematobium infections. This paper describes the clinical manifestations, diagnosis and management of schistosomiasis of the spinal cord in 5 patients attending Shaab and Ibn Khuldoun Hospitals, Khartoum from 1997 to 2007. There were 4 males and 1 female aged 9-45 years. They presented with symptoms and signs due to cord compression at the lower thoracic and lumbar vertebrae. Imaging studies revealed intramedullary masses compressing the cord. Biopsy showed ova of S. mansoni with surrounding inflammatory reaction. The cord showed demyelination near the ova and an associated inflammatory reaction. Patients responded well to surgical ecompression and treatment with praziquantel and oral steroids.


Assuntos
Neuroesquistossomose/diagnóstico , Praziquantel/administração & dosagem , Esquistossomose mansoni/diagnóstico , Compressão da Medula Espinal/parasitologia , Adolescente , Adulto , Animais , Anti-Helmínticos/administração & dosagem , Anti-Helmínticos/uso terapêutico , Criança , Feminino , Humanos , Vértebras Lombares/patologia , Masculino , Neuroesquistossomose/tratamento farmacológico , Neuroesquistossomose/cirurgia , Praziquantel/uso terapêutico , Schistosoma mansoni/isolamento & purificação , Compressão da Medula Espinal/tratamento farmacológico , Compressão da Medula Espinal/cirurgia , Sudão , Vértebras Torácicas/patologia , Adulto Jovem
15.
Epidemiol Infect ; 139(10): 1570-9, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21524339

RESUMO

This study aimed to describe the transmission dynamics, the serological and virus excretion patterns of Nipah virus (NiV) in Pteropus vampyrus bats. Bats in captivity were sampled every 7-21 days over a 1-year period. The data revealed five NiV serological patterns categorized as high and low positives, waning, decreasing and increasing, and negative in these individuals. The findings strongly suggest that NiV circulates in wild bat populations and that antibody could be maintained for long periods. The study also found that pup and juvenile bats from seropositive dams tested seropositive, indicating that maternal antibodies against NiV are transmitted passively, and in this study population may last up to 14 months. NiV was isolated from the urine of one bat, and within a few weeks, two other seronegative bats seroconverted. Based on the temporal cluster of seroconversion, we strongly believe that the NiV isolated was recrudesced and then transmitted horizontally between bats during the study period.


Assuntos
Anticorpos Antivirais/sangue , Quirópteros/virologia , Infecções por Henipavirus/veterinária , Vírus Nipah/isolamento & purificação , Animais , Feminino , Infecções por Henipavirus/epidemiologia , Infecções por Henipavirus/virologia , Imunidade Materno-Adquirida , Masculino , Vírus Nipah/imunologia , Recidiva
16.
Br J Anaesth ; 104(4): 482-6, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20194355

RESUMO

BACKGROUND: Local anaesthetics exhibit direct neurotoxic effects on neurones. Numerous studies have investigated the factors that may reverse this neuropathology, but the effects of glucose conditions on neuronal regeneration after lidocaine-induced injury have not been examined by observing living neurones. The present study investigated the effects of different glucose conditions on neurite length, growth cone regeneration, and cell death in dorsal root ganglia (DRG) neurones after lidocaine-induced injury in vitro. METHODS: DRG explants were isolated from chick embryos at embryonic day 8 and cultured in media containing low, normal, or high glucose concentrations (10, 25, or 40 mM) for 24 h. Tissues were exposed to lidocaine 8 mM for 1 h, then rinsed and incubated for a further 24 h. Neurite length and growth cone collapse assays were performed to assess neuronal growth and regeneration. Lactate dehydrogenase (LDH) and caspase assays were also performed to detect neuronal cell death. RESULTS: Addition of lidocaine for 1 h resulted in >97% growth cone collapse and neurite destruction under all three glucose conditions. Two hours after rinsing out the lidocaine, significant reversal of growth cone collapse and neurite elongation was observed under all glucose conditions. Growth cone collapse was higher under low-glucose condition (P<0.05). High glucose negatively affected neurite length more than growth cone collapse. At 24 h, LDH release with both low- and high-glucose conditions was higher than with normal glucose (P<0.05). Low- and high-glucose conditions increased caspase 3/7 activation. CONCLUSIONS: Normal glucose is optimal for neuronal recovery after lidocaine-induced injury in vitro.


Assuntos
Anestésicos Locais/toxicidade , Gânglios Espinais/efeitos dos fármacos , Glucose/farmacologia , Lidocaína/toxicidade , Regeneração Nervosa/efeitos dos fármacos , Animais , Morte Celular/efeitos dos fármacos , Células Cultivadas , Embrião de Galinha , Relação Dose-Resposta a Droga , Gânglios Espinais/patologia , Gânglios Espinais/fisiologia , Cones de Crescimento/efeitos dos fármacos , Cones de Crescimento/patologia , Cones de Crescimento/fisiologia , L-Lactato Desidrogenase/metabolismo , Neuritos/efeitos dos fármacos , Neuritos/patologia , Neuritos/fisiologia
17.
BJOG ; 116(9): 1225-41, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19485991

RESUMO

OBJECTIVE: To establish the optimal management strategy for women with suspected stage 1 ovarian cancer. DESIGN: We created a flowchart to illustrate each of six hypothetical management strategies. These considered two surgical approaches (systematic lymphadenectomy versus no lymph node dissection at all) in combination with three different policies for giving adjuvant chemotherapy. SETTING: Gynaecological cancer centre, London, UK. DATA SOURCES: Patient data and published papers. METHODS: We developed a deterministic model that uses information from multiple sources to estimate patient flow through each level of a hypothesised decision tree. RESULTS: We estimated that for every 100 cases of suspected early-stage ovarian cancer, there would be 37 cases with 'apparent' stage 1 disease and that of these, two (6%) would be denied potentially life-saving adjuvant treatment if systematic lymphadenectomy was not performed. The number of women given chemotherapy would not, according to our estimates, differ greatly between the two surgical approaches, the 7% increase with systematic lymphadenectomy being because of cases identified as having nodal metastases. CONCLUSIONS: We present a model of the intraoperative decision-making process that determines the extent of the staging procedure to be performed within our department when early-stage ovarian cancer is suspected. Unless adjuvant chemotherapy is prescribed for all, systematic pelvic and para-aortic node dissection is required to optimise survival. However, in our department, this would result in 32% of women with suspected early-stage ovarian cancer undergoing systematic node dissection. This flexible focused model may facilitate multidisciplinary team discussion when this part of the surgical staging procedure is considered within the context of the population presenting to the team, the morbidity of the procedure within the department and the predictive values of frozen section within that department. As the model is not disease-specific, it may be useful for decision making in other medical disciplines.


Assuntos
Técnicas de Apoio para a Decisão , Modelos Biológicos , Neoplasias Ovarianas/cirurgia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Árvores de Decisões , Feminino , Humanos , Cuidados Intraoperatórios/estatística & dados numéricos , Excisão de Linfonodo/estatística & dados numéricos , Metástase Linfática , Estadiamento de Neoplasias/métodos , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias Ovarianas/patologia , Medição de Risco
18.
Niger J Clin Pract ; 12(3): 335-7, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19803040

RESUMO

We report an unusual case of lower limb gangrene in a pubertal boy following a typical clinical presentation of septicaemia due to Salmonella typhi. After an initial response to presumed appropriate antibiotic and supportive therapy, the patient developed tissue ischaemia in both feet. There were no clinical or laboratory evidence suggestive of DIC or coagulopathy. Following conservative management which included oral administration of vitamin C, there was gradual regression of ischaemic changes, progressive healing and recovery of function of the left foot while the condition of the right foot deteriorated with extensive tissue necrosis and dry gangrene that extended to the distal one third of the foot. This necessitated surgical disarticulation of the metatarsophalangeal joints two months after admission. This report is to alert clinicians about this rare complication of a common curable disease with a view to anticipating the possibility of it occurring as well as considering appropriate preventive measures.


Assuntos
Gangrena/diagnóstico , Infecções por Salmonella/diagnóstico , Salmonella typhi , Amputação Cirúrgica , Criança , Gangrena/microbiologia , Gangrena/cirurgia , Humanos , Perna (Membro)/microbiologia , Perna (Membro)/cirurgia , Masculino , Nigéria , Infecções por Salmonella/microbiologia , Infecções por Salmonella/cirurgia
19.
Trop Biomed ; 36(1): 165-171, 2019 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-33597436

RESUMO

Flood is a potential driver in spreading waterborne diseases including leptospirosis, which is a zoonotic disease caused by pathogenic bacteria of the genus Leptospira. In the case of leptospirosis, cattle and goats can be incidental hosts and potential carriers of leptospirosis. Traditionally, serology such as microscopic agglutination test (MAT) and isolation of the organisms have been commonly used as the diagnostic approaches in diagnosing leptospirosis. However, nowadays, various molecular techniques have been developed for specific detection of Leptospira sp. such as, polymerase chain reaction (PCR), which is sensitive, specific and rapid in detecting the species. This study detected Leptospira sp. directly from the blood and urine of the animals such as, cattle, goats and sheep in Kelantan after a massive flood by using multiplex PCR (mPCR). From the results collected in the study, four blood samples (0.63%; 4/635) were found to be positive with Leptospira sp. and one urine sample (3.23%; 1/31) was detected as positive with Leptospira sp. The blood and urine samples that were detected to be positive with Leptospira sp. were collected from cattle and goats exposed to the flood. However, no Leptospira sp. was detected from the sheep in this study. Multiplex PCR (mPCR) was successfully used to detect the presence of Leptospira sp. in animals. Apart from that, it is also suggested that flood has a significant role in transmitting the disease to animals.

20.
Trop Biomed ; 36(3): 604-609, 2019 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-33597482

RESUMO

Toxoplasmosis is a worldwide zoonosis caused by the protozoa Toxoplasma gondii which affects human and animals. Village chickens (Gallus domesticus) most commonly known as Ayam Kampung or free-range chickens, have been suggested to play a role in the epidemiology of toxoplasmosis. This study determines the presence of T. gondii in the village chicken populations in two states of Malaysia. A total of 50 serum samples from the chickens from Selangor (n=20) and Melaka (n=30) were collected and analysed using commercial serological kits. T. gondii antigen was detected in 20% (Selangor 30%; Melaka 13%) samples using ELISA test and anti-T. gondii antibody was detected in all positive ELISA samples using the indirect haemagglutination test (IHAT). Histopathological examination revealed tissue changes such as inflammation and degeneration in brain and liver of seropositive chickens. This is the first report of T. gondii infection in the village chickens in Malaysia.


Assuntos
Doenças das Aves/parasitologia , Galinhas/parasitologia , Toxoplasmose Animal/epidemiologia , Animais , Doenças das Aves/epidemiologia , Encéfalo/parasitologia , Ensaio de Imunoadsorção Enzimática/veterinária , Testes de Hemaglutinação/veterinária , Fígado/parasitologia , Malásia , Toxoplasma
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