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INTRODUCTION: The quality of information and efficiency in the practice and care environments are important aspects of nursing care. The use of a reliable and valid scale can monitor the quality of handover and provide information for continuous improvement of practice. This study aims to describe the perception of nurses, on the domains of quality of information, efficiency, interaction and support and patient involvement. METHOD: A cross-sectional descriptive study was conducted among 450 nurses from 37 wards in Hospital Kuala Lumpur. Nurses on shift duty were recruited by convenience sampling from the Medical, Surgery, Obstetrics & Gynaecology, Orthopaedic and Paediatric wards. Using a validated questionnaire (Handover Evaluation Scale), nurses self-rated their perceptions using a 7-point scale and provided open-ended responses to the strengths and challenges that they faced. Descriptive and inferential analyses were done while open-ended questions were summarised based on key themes. RESULTS: A total of 414 nurses completed the survey (92.0% response rate). Nurses had an overall mean (SD) perception score of 5.01 (SD 0.56). They perceived good interaction and support during handover and on the quality of information that they received, with mean scores of 5.54 (SD 0.79) and 5.19 (SD 0.69), respectively. There was an association between the departments where the nurses worked and their overall perceptions on nursing handover (p<0.001). Interruptions being the most common theme emerged from the open-ended section. CONCLUSION: Despite having substantial interaction and support amongst nurses, opportunities for improvements were noted. Improvements in the quality of handover information and reducing interruptions should be the main emphases as these were perceived to be essential in the current handover practices by nurses.
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Enfermeras y Enfermeros , Pase de Guardia , Niño , Estudios Transversales , Hospitales , Humanos , Malasia , PercepciónRESUMEN
INTRODUCTION: With improved access to anti-retroviral therapy (ART) the focus of HIV treatment is changing to reducing chronic co-morbidities and their effects, but guidelines for HIV care in many African countries do not include screening for cardiac disease. Our study aimed to determine the pattern of cardiac abnormalities in HIV-positive patients on ART. METHODS: We implemented a prospective, observational study for 24 months on a random sample of adult patients seen at a dedicated HIV clinic in Mozambique. Demographic, clinical and full cardiovascular evaluations were performed on all participants. RESULTS: We enrolled 264 HIVvpositive patients (mean age 39.3 years; 186 female, 70.5%). The mean time on ART was 46 (SD 36) months and most had low viral load (174, 65%). Obesity (45, 17%), overweight (65, 24.6%), hypertension (54, 20.5%) and severe anaemia (21, 8.3%) were frequent. Diabetes was present in four patients (1.5%). The most important conditions in 252 patients submitted to echocardiography (88, 34.9% had cardiac abnormalities) were: severe rheumatic heart valve disease (six), severe dilated cardiomyopathy (five), aortic degenerative disease and congenital heart disease (in three patients each). At 24-month follow up, six of the 252 patients had died; of the 196 reviewed on echocardiography 29 had progressed and two had improved ventricular systolic function. CONCLUSION: This young cohort of HIV-positive patients on ART showed lower occurrence of tuberculous pericarditis and dilated cardiomyopathy but high cardiovascular risk, as assessed by the presence of obesity, hypertension and anaemia. Cardiac abnormalities needing multidisciplinary care were also found. There is a need for tailored cardiovascular risk stratification and screening for cardiovascular disease in HIV-positive patients on ART in Africa.
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Antirretrovirales/uso terapéutico , Enfermedades Cardiovasculares/epidemiología , Infecciones por VIH/tratamiento farmacológico , Adolescente , Adulto , Anciano , Antirretrovirales/efectos adversos , Enfermedades Cardiovasculares/diagnóstico , Enfermedades Cardiovasculares/mortalidad , Enfermedades Cardiovasculares/terapia , Comorbilidad , Estudios Transversales , Duración de la Terapia , Femenino , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Infecciones por VIH/mortalidad , Humanos , Masculino , Persona de Mediana Edad , Mozambique/epidemiología , Estudios Prospectivos , Medición de Riesgo , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento , Adulto JovenRESUMEN
Introduction: With improved access to anti-retroviral therapy (ART) the focus of HIV treatment is changing to reducing chronic co-morbidities and their effects, but guidelines for HIV care in many African countries do not include screening for cardiac disease. Our study aimed to determine the pattern of cardiac abnormalities in HIV-positive patients on ART. Methods: We implemented a prospective, observational study for 24 months on a random sample of adult patients seen at a dedicated HIV clinic in Mozambique. Demographic, clinical and full cardiovascular evaluations were performed on all participants. Results: We enrolled 264 HIVvpositive patients (mean age 39.3 years; 186 female, 70.5%). The mean time on ART was 46 (SD 36) months and most had low viral load (174, 65%). Obesity (45, 17%), overweight (65, 24.6%), hypertension (54, 20.5%) and severe anaemia (21, 8.3%) were frequent. Diabetes was present in four patients (1.5%). The most important conditions in 252 patients submitted to echocardiography (88, 34.9% had cardiac abnormalities) were: severe rheumatic heart valve disease (six), severe dilated cardiomyopathy (five), aortic degenerative disease and congenital heart disease (in three patients each). At 24-month follow up, six of the 252 patients had died; of the 196 reviewed on echocardiography 29 had progressed and two had improved ventricular systolic function. Conclusion: This young cohort of HIV-positive patients on ART showed lower occurrence of tuberculous pericarditis and dilated cardiomyopathy but high cardiovascular risk, as assessed by the presence of obesity, hypertension and anaemia. Cardiac abnormalities needing multidisciplinary care were also found. There is a need for tailored cardiovascular risk stratification and screening for cardiovascular disease in HIV-positive patients on ART in Africa.
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Humanos , Masculino , Femenino , Adolescente , Adulto , Anciano , Adulto Joven , Enfermedades Cardiovasculares/epidemiología , Infecciones por VIH/tratamiento farmacológico , Antirretrovirales/uso terapéutico , Enfermedades Cardiovasculares/terapia , Comorbilidad , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Estudios Prospectivos , Medición de Riesgo , AntirretroviralesRESUMEN
Identification of Pelargonium radula as bioindicator for mercury (Hg) detection confers a new hope for monitoring the safety of drinking water consumption. Hg, like other non-essential metals, inflicts the deterioration of biological functions in human and other creatures. In the present study, effects of Hg on the physiology and biochemical content of P. radula were undertaken to understand the occurrence of the morphological changes observed. Young leaves of P. radula were treated with different concentrations of Hg-containing solution (0.5, 1.0 and 2.0 ppb) along with controls for 4 h, prior to further analysis. Elevated Hg concentration in treatment solution significantly prompted an increased accumulation of Hg in the leaf tissues. Meanwhile, total protein, chlorophyll and low molecular mass thiol contents (cysteine, glutathione and oxidized glutathione) decreased as Hg accumulation increased. However, phytochelatin 2 productions were induced in the treated leaves, in comparison to the control. Based on these findings, it is postulated that as low as 0.5 ppb of Hg interferes with the metabolic processes of plant cells, which was reflected from the morphological changes exhibited on P. radula leaves-the colour of the Hg-treated leaves changed from green to yellowish-brown, became chlorosis and wilted. Changes in the tested characteristics of plant are closely related to the Hg-induced morphological changes on P. radula leaves, a potential bioindicator for detecting Hg in drinking water.
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Agua Potable/química , Biomarcadores Ambientales , Monitoreo del Ambiente/métodos , Mercurio/análisis , Pelargonium/química , Contaminantes Químicos del Agua/análisis , Clorofila/metabolismo , Agua Potable/normas , Glutatión/metabolismo , Humanos , Modelos Teóricos , Pelargonium/metabolismo , Fitoquelatinas/metabolismo , Hojas de la Planta/metabolismoRESUMEN
Coxiella burnetii, the causative agent of Q fever, is an intracellular bacterium of medical and veterinary importance. The reservoirs of C. burnetii are extensive which include mammals and arthropods, particularly ticks. As the organism is difficult to culture, this study was aimed to detect C. burnetii DNA in animal (mainly blood and vaginal samples of cattle, goats and sheep) and tick samples obtained from farm animals, wild rodents and vegetation. Two polymerase chain reaction (PCR) assays targeting IS1111 transposon-like gene (TransPCR) and com1 gene (OMP-PCR) were used for C. burnetii detection. Sequence determination of the amplified fragments and a real-time PCR assay were used to confirm PCR findings. C. burnetii DNA was detected from 9.1% of cattle blood and 4.2% vaginal samples, respectively. A small percentage (5.8%) of ticks (including Amblyomma, Dermacentor, Rhipicephalus and Haemaphysalis spp.) haboring C. burnetii were identified in this study. This study provides molecular evidence on the presence of C. burnetii in cattle and ticks. The possible zoonotic transmission of C. burnetii is yet to be investigated.
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UNLABELLED: In response to stress such as virus infection, cells can stall translation by storing mRNAs away in cellular compartments called stress granules (SGs). This defense mechanism favors cell survival by limiting the use of energy and nutrients until the stress is resolved. In some cases it may also block viral propagation as viruses are dependent on the host cell resources to produce viral proteins. Human norovirus is a member of the Caliciviridae family responsible for gastroenteritis outbreaks worldwide. Previous studies on caliciviruses have identified mechanisms by which they can usurp the host translational machinery, using the viral protein genome-linked VPg, or regulate host protein synthesis through the mitogen-activated protein kinase (MAPK) pathway. Here, we examined the effect of feline calicivirus (FCV) infection on SG accumulation. We show that FCV infection impairs the assembly of SGs despite an increased phosphorylation of eukaryotic initiation factor eIF2α, a hallmark of stress pathway activation. Furthermore, SGs did not accumulate in FCV-infected cells that were stressed with arsenite or hydrogen peroxide. FCV infection resulted in the cleavage of the SG-nucleating protein Ras-GTPase activating SH3 domain-binding protein (G3BP1), which is mediated by the viral 3C-like proteinase NS6(Pro) Using mutational analysis, we identified the FCV-induced cleavage site within G3BP1, which differs from the poliovirus 3C proteinase cleavage site previously identified. Finally, we showed that NS6(Pro)-mediated G3BP1 cleavage impairs SG assembly. In contrast, murine norovirus (MNV) infection did not impact arsenite-induced SG assembly or G3BP1 integrity, suggesting that related caliciviruses have distinct effects on the stress response pathway. IMPORTANCE: Human noroviruses are a major cause of viral gastroenteritis, and it is important to understand how they interact with the infected host cell. Feline calicivirus (FCV) and murine norovirus (MNV) are used as models to understand norovirus biology. Recent studies have suggested that the assembly of stress granules is central in orchestrating stress and antiviral responses to restrict viral replication. Overall, our study provides the first insight on how caliciviruses impair stress granule assembly by targeting the nucleating factor G3BP1 via the viral proteinase NS6(Pro) This work provides new insights into host-pathogen interactions that regulate stress pathways during FCV infection.
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Infecciones por Caliciviridae/virología , Calicivirus Felino/patogenicidad , Proteínas Portadoras/metabolismo , Gránulos Citoplasmáticos/metabolismo , Interacciones Huésped-Patógeno , Replicación Viral , Proteasas Virales 3C , Animales , Infecciones por Caliciviridae/metabolismo , Infecciones por Caliciviridae/patología , Proteínas Portadoras/genética , Gatos , Cisteína Endopeptidasas/metabolismo , Gránulos Citoplasmáticos/virología , ADN Helicasas , Factor 2 Eucariótico de Iniciación/metabolismo , Células HeLa , Humanos , Proteínas Quinasas Activadas por Mitógenos/metabolismo , Fosforilación , Proteínas de Unión a Poli-ADP-Ribosa , ARN Helicasas , Proteínas con Motivos de Reconocimiento de ARN , Proteínas Virales/metabolismoRESUMEN
The development of targeted therapies and especially angiogenesis inhibitor drugs is undoubtedly a major advancement in the treatment of cancer in the 21st century. Bevacizumab is a recombinant humanized monoclonal antibody directed against vascular endothelial growth factor that was approved for the treatment of multiple solid tumors, we have reviewed the side effects cited in clinical trials of bevacizumab and the guidelines for their management and we can conclude that bevacizumab, is generally well tolerated but is associated with increase in some adverse side effects for which monitoring is required particularly vascular and renal side effects including hypertension, proteinuria, thromboembolic events and hemorrhage. The better understanding of bevacizumab toxicity profile and the guidelines for their optimal management as well as the education of patients may allow prolonged therapy and thus improved clinical outcomes.
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Non Hodgkin's lymphomas (NHL) constitute a heterogeneous group of neoplasm of the lymphoid system. There are many histological subtype of NHL based on WHO classification of hematopoietic and lymphoid neoplasm. This cross-sectional study was carried out in the department of Pathology, Dhaka Medical College, Dhaka from January 2009 to December 2010 to observe the different subtypes of NHL using immunohistochemistry (IHC) with CD3. A total of 50 microscopically diagnosed case of NHL irrespective of age and sex were included in the study. The diagnostic morphologic criteria of each lymphoma subcategory were compiled and diagnosis was made. Mean age of the study subjects were 42.0±19.7 years with range 3-75 years and male female ratio was 1.8:1. Nodal NHL was 66% and extranodal cases were 34%. Maximum number of histolgic subtypes belonged to diffuse large B-cell lymphoma (DLBCL) and male was predominant in all histological subtypes, except peripheral T-cell lymphoma (PTCL). DLBCL was predominant in all B-cell NHL whereas PTCL was predominant in all T-cell NHL. The most childhood patients belonged to lymphoblastic lymphoma. Regarding cell lineage B-cell NHL was more common than T-cell NHL (88% vs. 12%), but high grade pattern was more predominant in T-cell type (83.3% vs. 65.9%). Among 50 study subjects histological (H & E) diagnosis reveals 46 cases as B-cell NHL and 4 as T-cell NHL but IHC confirms 6 cases as T-cell NHL.
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Complejo CD3/análisis , Linfoma no Hodgkin/diagnóstico , Adolescente , Adulto , Anciano , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Inmunohistoquímica , Linfoma de Células B/clasificación , Linfoma no Hodgkin/clasificación , Linfoma de Células T/clasificación , Masculino , Persona de Mediana EdadRESUMEN
Context: Randomized studies have shown different magnitude of bevacizumab (BV) benefit in the treatment of advanced breast cancer. Aims: The aim of the study is to evaluate the efficacy and safety of BV for the treatment of human epidermal growth factor receptor type 2 (HER2) negative metastatic disease. Settings and Design: A large observational institutional study in Moroccan population. Materials and Methods: From January 2009 to December 2011, 42 patients with HER2 negative metastatic breast cancer were analyzed. Results: The median age was 51 years. Approximately two-third of patients analyzed were treated at the first line with BV in association with (paclitaxel, docetaxel or capecitabine) in (40.7%; 40.7% and 18.5%) and the other third at second-line therapy with a combination of the same drugs in (46.6%, 26.6% and 266% respectively); the median number of cycles was 15. In terms of the clinical benefit rate there was a trend in favor of the combination with taxanes and among responders, median duration of objective response was longer with paclitaxel. In addition, analyses of progression-free survival (PFS) across subgroups in both first and second line therapy showed consistent improvements in PFS with the combination of BV and paclitaxel the difference was statistically significant. Concerning safety, the BV was generally well-tolerated. Conclusions: BV in HER2 negative metastatic diseases potentially improved objective response rate and PFS especially in combination with Paclitaxel, which confirm and expand on the results from published literature, with tolerable toxicity.
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Non alcoholic steatohepatitis is a hepatic disorder with histological features of alcohol induced liver disease that occurs in individual who do not consume significant alcohol. Liver biopsy is an important part of the evaluation in term of both grade & stage. A cross sectional study was carried out in the department of Pathology, Dhaka Medical College, Dhaka & department of Hepatology, Bangabandhu Sheikh Mujib Medical University (BSMMU) from July 2007 to June 2009. Total 55 adult subjects of both sex were included on the basis of predefined inclusion & exclusion criteria in this study to evaluate the histological pattern of non alcoholic fatty liver disease (NAFLD) and its correlation with risk factors. Liver biopsy was done and H & E and Masson's Trichrome stain slides were examined to evaluate the grade and stage of NAFLD. Scoring and semiquantitative assessment of steatosis and NAFLD severity was done according to Kleiner scale known as NAFLD activity score (NAS). The results of Pearson correlation showed only BMI and triglyceride level significantly correlated with NAS score. The results of Spearman's rank correlation showed that BMI, central obesity, triglyceridaemia and age significantly correlated with staging of fibrosis. The results of multiple regression analysis showed that variation of NAS depend on BMI and triglyceride level. The study also revealed that risk factors contributed about 29% risk for the occurrence of non alcoholic steatohepatitis.
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Hígado Graso/patología , Adulto , Anciano , Índice de Masa Corporal , Estudios Transversales , Hígado Graso/etiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Enfermedad del Hígado Graso no Alcohólico , Factores de Riesgo , Índice de Severidad de la Enfermedad , Triglicéridos/sangreRESUMEN
BACKGROUND: Coronary angiography is recognized as the gold test for diagnosis of coronary artery diseases. Based on the literature review, little is known about patients' expectations about this procedure. Understanding the patient's expectations is an important way to achieve patient-centered care. The purpose of this study was to explore the expectations of Iranian patients undergoing coronary angiography. MATERIALS AND METHODS: This descriptive exploratory qualitative study was carried out between 2011 and 2012 in three hospitals in Shiraz, Iran, with a purposive sample of 15 patients (7 men and 8 women, about 28-70 years of age). Data were collected using semi-structured interviews to explore the patients' expectations. Interview data were analyzed using conventional qualitative content analysis approach. RESULTS: The interviews revealed that the participants had four main categories of expectations about coronary angiography. The patient's expectations were those from angiography, from the treatment team, and the need for preparation of angiography, education, and training. CONCLUSIONS: In general, the results of this study revealed a new insight into the expectations of patients undergoing coronary angiography. Patient education and preparation should include information addressing the expectations. Moreover, an appropriate care program based on the patients' expectations can promote the quality of care and satisfaction of patients.
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Peripheral primitive neuroectodermal tumors (PNET) are rare malignant tumors, affecting mostly children and adolescents and have been described in breast in eight case reports only. In this paper, we present a case of bilateral mammary ES/PNET where distinction between primary and metastatic diseases was discussed through a literature review. The aim of this work is to demonstrate that although rare, the possibility of PNET should be kept in mind while evaluating a palpable breast abnormality in a young female.
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Enteropathy-associated T-cell lymphoma (EATL) is a very rare peripheral T-cell lymphoma which is mostly associated with celiac disease. However, the association of primary sclerosing cholangitis and enteropathy-associated T-cell lymphoma is uncommon. Herein we report and discuss the first case of patient who presented simultaneously with these two rare diseases. It is a 54-year-old man who stopped gluten-free diet after 15 years history of celiac disease. The diagnosis was based on the histological examination of duodenal biopsy and the diagnosis of primary sclerosing cholangitis was made on liver biopsy, as well as the magnetic resonance cholangiogram. The treatment of EATL is mainly based on chemotherapy in addition to the optimal management of complications and adverse events that impact on the response to treatment and clinical outcomes, although the prognosis remains remarkably very poor.
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Deforestation leads to the deterioration of soil fertility which occurs rapidly under tropical climates. Forest rehabilitation is one of the approaches to restore soil fertility and increase the productivity of degraded areas. The objective of this study was to evaluate and compare soil biological properties under enrichment planting and secondary forests at Tapah Hill Forest Reserve, Perak after 42 years of planting. Both areas were excessively logged in the 1950s and left idle without any appropriate forest management until 1968 when rehabilitation program was initiated. Six subplots (20 m × 20 m) were established within each enrichment planting (F1) and secondary forest (F2) plots, after which soil was sampled at depths of 0-15 cm (topsoil) and 15-30 cm (subsoil). Results showed that total mean microbial enzymatic activity, as well as biomass C and N content, was significantly higher in F1 compared to F2. The results, despite sample variability, suggest that the rehabilitation program improves the soil biological activities where high rate of soil organic matter, organic C, N, suitable soil acidity range, and abundance of forest litter is believed to be the predisposing factor promoting higher population of microbial in F1 as compared to F2. In conclusion total microbial enzymatic activity, biomass C and biomass N evaluation were higher in enrichment planting plot compared to secondary forest. After 42 years of planting, rehabilitation or enrichment planting helps to restore the productivity of planted forest in terms of biological parameters.
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Conservación de los Recursos Naturales , Dipterocarpaceae/química , Microbiología del Suelo , Suelo/química , Árboles/química , Ácidos/química , Biomasa , Carbono/química , Fenómenos Químicos , Recuento de Colonia Microbiana , Activación Enzimática , Agricultura Forestal/métodos , Malasia , Consorcios Microbianos , Nitrógeno/química , Suelo/análisis , Factores de TiempoRESUMEN
BACKGROUND & AIMS: Because of the beneficial intestinal effects of dietary fibers, we have evaluated the therapeutic effects of green banana or pectin in children with persistent diarrhea. METHODS: In a double-blind trial, 62 boys, age 5-12 months, were randomly given a rice-based diet containing either 250 g/L of cooked green banana (n = 22) or 4 g/kg pectin (n = 19) or the rice-diet alone (control, n = 21), providing 54 kcal/dL daily for 7 days. Stool weight and consistency, frequency of vomiting and purging, and duration of illness were measured. RESULTS: Most children (60%) had no pathogens isolated from stools, 17% had rotavirus, 5% Vibrio cholerae, 4% Salmonella group B, and 11% had enterotoxigenic Escherichia coli infections. By day 3 posttreatment, significantly (P < 0.001) more children recovered from diarrhea receiving pectin or banana than controls (59%, 55%, and 15%, respectively). By day 4, these proportions correspondingly increased to 82%, 78%, and 23%, respectively, the study diet groups being significantly (P < 0.001) different than controls. Green banana and pectin significantly (P < 0.05) reduced amounts of stool, oral rehydration solution, intravenous fluid, and numbers of vomiting, and diarrheal duration. CONCLUSIONS: Green banana and pectin are useful in the dietary management of persistent diarrhea in hospitalized children and may also be useful to treat children at home.
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Antidiarreicos/administración & dosificación , Diarrea Infantil/dietoterapia , Diarrea Infantil/tratamiento farmacológico , Pectinas/administración & dosificación , Zingiberales , Bangladesh , Diarrea Infantil/mortalidad , Supervivencia sin Enfermedad , Método Doble Ciego , Heces , Fluidoterapia , Humanos , Lactante , Infusiones Intravenosas , Masculino , Oryza , Resultado del Tratamiento , Vómitos/dietoterapia , Vómitos/tratamiento farmacológico , Vómitos/mortalidadRESUMEN
To date there have been few reports on the impact of dietary intervention on the clinical course of acute shigellosis. Current management of acute shigellosis is primarily focused on antibiotic therapy with less emphasis on nutritional management. In a randomised clinical trial, we examined the role of an energy-dense diet on the clinical outcome in malnourished children with acute dysentery due to shigellosis. Seventy-five children aged 12--48 months with acute dysentery randomly received either a milk--cereal formula with an energy density of 4960 kJ/l (test group) or a milk-cereal formula with energy of 2480 kJ/l (control group) for 10 d in hospital. In both milk-cereal formulas, protein provided 11 % energy. In addition, the standard hospital diet was offered to all children and all children received an appropriate antibiotic for 5 d. The mean food intakes (g/kg per d) in the test and control groups were: 112 (SE 2.28) and 116 (SE 3.48) on day 1; 118 (SE 2.72) and 107 (SE 3.13) on day 5; 120 (SE 2.25) and 100 (SE 3.83) on day 10. The mean energy intakes (kJ/kg per d) in the test and control groups respectively were: 622 (SE 13.2) and 315 (SE 11.3) on day 1; 655 (SE 15.1) and 311 (SE 7.98) on day 5; 672 (SE 14.7) and 294 (SE 11.1) on day 10. The food and energy intakes were mostly from the milk-cereal diet. There was no difference between two groups in resolution of fever, dysenteric (bloody and or mucoid) stools, stool frequency and tenesmus. However, vomiting was more frequently observed among the test-group children during the first 5 d of intervention (67 % v. 41 %, There was an increase in the mean weight-for-age (%) in the test group compared with the control group after the 10 d of dietary intervention (6.2 (SE 0.6) v. 2.7 (SE 0.4), In addition, resolution of rectal prolapse was better (26 % v. 8 %, in the test group v. control group after 5 d, and 13 % v. 6 %, after 10 d of dietary intervention. Supplementation with a high-energy diet does not have any adverse effect on clinical course of acute shigellosis and reduces the incidence of rectal prolapse in malnourished children.
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Disentería Bacilar/dietoterapia , Prolapso Rectal/prevención & control , Enfermedad Aguda , Niño , Preescolar , Disentería Bacilar/complicaciones , Ingestión de Energía , Humanos , Trastornos Nutricionales/complicaciones , Resultado del TratamientoRESUMEN
Oil palm is an important economic crop for Malaysia. Genetic engineering could be applied to produce transgenic oil palms with high value-added fatty acids and novel products to ensure the sustainability of the palm oil industry. Establishment of a reliable transformation and regeneration system is essential for genetic engineering. Biolistic was initially chosen as the method for oil palm transformation as it has been the most successful method for monocotyledons to date. Optimization of physical and biological parameters, including testing of promoters and selective agents, was carried out as a prerequisite for stable transformation. This has resulted in the successful transfer of reporter genes into oil palm and the regeneration of transgenic oil palm, thus making it possible to improve the oil palm through genetic engineering. Besides application of the Biolistics method, studies on transformation mediated by Agrobacterium and utilization of the green fluorescent protein gene as a selectable marker gene have been initiated. Upon the development of a reliable transformation system, a number of useful targets are being projected for oil palm improvement. Among these targets are high-oleate and high-stearate oils, and the production of industrial feedstock such as biodegradable plastics. The efforts in oil palm genetic engineering are thus not targeted as commodity palm oil. Due to the long life cycle of the palm and the time taken to regenerate plants in tissue culture, it is envisaged that commercial planting of transgenic palms will not occur any earlier than the year 2020.
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Ácido Oléico/análisis , Aceites de Plantas , Plantas Comestibles/genética , Plantas Comestibles/metabolismo , Ácidos Esteáricos/análisis , Biolística/métodos , Marcadores Genéticos , Proteínas Fluorescentes Verdes , Proteínas Luminiscentes/análisis , Proteínas Luminiscentes/genética , Aceite de Palma , Aceites de Plantas/química , Plantas Modificadas Genéticamente/metabolismo , RhizobiumRESUMEN
BACKGROUND: Addition of a small amount of amylase rich flour (ARF) to a thick porridge instantly liquefy the porridge and increase the energy intake even by sick children. The present study examined the absorption of macronutrients and calorie from an energy dense diet liquefied with ARF in children aged 6-11 months with acute watery diarrhea. METHODS: After adequately hydrated with oral rehydration fluid over a period of 24 hours, children were randomly assigned to receive either an ARF treated liquefied porridge (test diet) or a porridge diluted with water (control diet). A 72-hour metabolic balance was performed to determine the absorption of carbohydrate, fat, protein, and calorie. RESULTS: Thirteen infants received the test diet, and 15 infants received the control diet. The intake of protein (g/kg/d), carbohydrate (g/kg.d), fat (g/kg.d) and calorie (kJ/kg.d) were 1.97, 20.6, 4.3 and 548 respectively in the test group and those in the control group were 1.12, 13.3, 2.8 and 356. The stool loss of protein, carbohydrate and fat were comparable in the two groups. The absorption coefficient (%) of carbohydrate, fat and energy were 69.6, 61.3 and 65.4 in the test group and were 73.2, 58.6 and 66.7 in the control group. The coefficient of absorption of protein was significantly higher in the test group (37.7% vs. 21.7%). The mean (95% CI) nitrogen balance (g/kg.d) in the test and control groups were 0.064 (0.026, 0.102) and -0.029 (-0.055, 0.003) respectively. CONCLUSIONS: The results suggest that energy dense diet liquefied with ARF was well absorbed in children with acute diarrhea and there was a positive nitrogen balance that may have a positive impact in preventing weight loss during acute illness.
PIP: A case-control study conducted in Bangladesh indicates that an energy-dense diet liquefied with amylase-rich flour (ARF) is well absorbed in children with acute diarrhea and may prevent weight loss. The addition of only 2 grams of ARF per 100 grams of porridge increases the cereal's osmolality without increasing its volume. 28 boys, 6-11 months old, with acute watery diarrhea, who were rehydrated at the International Centre for Diarrhoeal Disease Research, Bangladesh (ICDDR,B) were randomly assigned to receive either ARF-treated liquefied porridge (test diet) (n = 13) or porridge diluted with water (control diet) (n = 15). A 72-hour metabolic balance indicated that mean intakes of protein, carbohydrate, fat, and energy were significantly greater (p 0.001) in the test group (1.97 gm/kg/d, 20.6 gm/kg.d, 4.3 gm/kg.d, and 548 kJ/kg.d, respectively) than among control infants (1.12 gm/kg/d, 13.3 gm/kg.d, 2.8 gm/kg.d, and 356 kJ/kg.d, respectively). The absorption coefficients of protein, carbohydrate, fat, and energy were 37.7%, 69.6%, 61.3%, and 65.4%, respectively, in the test group and 21.7%, 73.2%, 58.6%, and 66.7%, respectively, in the control group. The protein energy ratios in the test and control diets were 6.0 and 4.8, respectively. Stool losses of carbohydrate, fat, and nitrogen were comparable in both groups. The nitrogen balance was positive in the test group (0.064 gm/kg.d) and negative in the control group (-0.029 gm/kg.d). Finally, although the duration of diarrhea was similar in both groups, the median weight change was 0 in the test group and -12.4 gm/kg in the control group.
Asunto(s)
Amilasas/metabolismo , Defecación/fisiología , Diarrea Infantil/dietoterapia , Ingestión de Energía , Alimentos Formulados , Absorción , Enfermedad Aguda , Diarrea Infantil/fisiopatología , Carbohidratos de la Dieta/administración & dosificación , Carbohidratos de la Dieta/farmacocinética , Grasas de la Dieta/administración & dosificación , Grasas de la Dieta/farmacocinética , Proteínas en la Dieta/administración & dosificación , Proteínas en la Dieta/farmacocinética , Ingestión de Alimentos , Heces/química , Heces/microbiología , Humanos , Lactante , Masculino , Triticum/enzimologíaRESUMEN
To evaluate the efficacy of a hypo-osmolar and a standard (World Health Organization) oral rehydration salt (ORS) solution in persistent diarrhoea, a randomized controlled clinical trial was conducted in 55 children. After a 1-day observation period the children were assigned to one of three solutions: standard ORS (WHO-ORS) (osmolality 311 mosmol/l), hypo-osmolar ORS containing L-alanine and glucose (osmolality 255 mosmol/l) and i.v. polyelectrolyte solutions (osmolality 293 mosmol/l) for ongoing replacement of stool loss for the next 4 days. Excellent acceptability of ORS (101-160 ml/kg body weight/day) by the children was observed. There were no significant differences in the total intake of solutions and food, and frequency of stools among the groups. Stool outputs were significantly less in infants receiving hypo-osmolar ORS than in those receiving WHO-ORS for 0-24 h (p = 0.04), 0-48 h (p = 0.01), 0-72 h (p = 0.04) and 0-96 h (p = 0.03). The results indicate a sufficient scope of ORS practice in persistent diarrhoea. Furthermore, we found that a hypo-osmolar ORS containing L-alanine and glucose is as efficacious as an iv solution and more effective than WHO-ORS for replacement of ongoing stool loss in persistent diarrhoea.
Asunto(s)
Diarrea Infantil/terapia , Fluidoterapia , Soluciones para Rehidratación , Bicarbonatos/administración & dosificación , Interpretación Estadística de Datos , Diarrea Infantil/diagnóstico , Femenino , Glucosa/administración & dosificación , Humanos , Lactante , Masculino , Cloruro de Potasio/administración & dosificación , Cloruro de Sodio/administración & dosificaciónRESUMEN
Glucose-based oral rehydration salt (ORS) is an appropriate and cost-effective tool to treat diarrhoeal dehydration. In patients with a high purging rate, particularly due to cholera, rice-based ORS has been shown to substantially reduce stool output compared to glucose ORS. However, it is not used in the hospitals or diarrhoea treatment centres largely because of the non-availability of a ready-to-use inexpensive packaged product and because of the problem of cooking. In a large diarrhoea treatment centre in Bangladesh (with an annual ORS consumption of approximately 140,000 litres), we have maintained in-house production of rice ORS and used it routinely for more than 600,000 patients over the last nine years. Semi-literate health workers cook rice ORS and supervise mothers in its use. Rice ORS is less costly (US $0.15 per patient treated compared with US $0.37 for glucose ORS) and is well accepted. It is an attractive alternative to glucose ORS in many fixed facility treatment centres in countries where rice is a staple and cholera is endemic. The process of its in-house preparation and use is described in this report which may assist hospitals wishing to use rice ORS in treating diarrhoea patients. Availability of a low cost ready-to-use rice ORS packet (which needs no cooking) with adequate shelf-life will increase its use at fixed facilities.