59 research outputs found
Growth inhibition in Rhizoetonia bataticola and Xanthomonas axonopodis pv. malvacerum by herbal oils
Oils extracted from six medicinal plants viz., mentha (Mentha arvensis), ocimum (Ocimum sanctum), lemongrass (Cympobogan flexuosus), citronella (Cympobogan winternus), turmeric (Curcuma longa) and palmarosa (Cympobogan martinii) were tested under in vitro condition for their antifungal and antibacterial properties. Mentha, ocilnum, palmarosa and lemongrass oil exhibited 100% inhibition of Rhizoctonia bataticola at 1 and 2% concentrations, whereas citronella oil recorded 100% inhibition at 2% concentration. Turmeric oil was found to be less effective against Rhizoctonia. Mentha oil showed the highest (17 mm) inhibition zone against Xanthomonas axonopodis pv. malvacerum followed by ocimum oil (12 mm). The studies showed that mentha oil possessed very high inhibitory effects on fungi and bacteria.
 
Identification of Transcription Factors Regulating CTNNAL1 Expression in Human Bronchial Epithelial Cells
Adhesion molecules play important roles in airway hyperresponsiveness or airway inflammation. Our previous study indicated catenin alpha-like 1 (CTNNAL1), an alpha-catenin-related protein, was downregulated in asthma patients and animal model. In this study, we observed that the expression of CTNNAL1 was increased in lung tissue of the ozone-stressed Balb/c mice model and in acute ozone stressed human bronchial epithelial cells (HBEC). In order to identify the possible DNA-binding proteins regulating the transcription of CTNNAL1 gene in HBEC, we designed 8 oligo- nucleotide probes corresponding to various regions of the CTNNAL1 promoter in electrophoretic mobility shift assays (EMSA). We detected 5 putative transcription factors binding sites within CTNNAL1 promoter region that can recruit LEF-1, AP-2α and CREB respectively by EMSA and antibody supershift assay. Chromatin immunoprecipitation (ChIP) assay verified that AP-2 α and LEF-1 could be recruited to the CTNNAL1 promoter. Therefore we further analyzed the functions of putative AP-2 and LEF-1 sites within CTNNAL1 promoter by site-directed mutagenesis of those sites within pGL3/FR/luc. We observed a reduction in human CTNNAL1 promoter activity of mutants of both AP-2α and LEF-1 sites. Pre-treatment with ASOs targeting LEF-1and AP-2α yielded significant reduction of ozone-stress-induced CTNNAL1 expression. The activation of AP-2α and LEF-1, followed by CTNNAL1 expression, showed a correlation during a 16-hour time course. Our data suggest that a robust transcriptional CTNNAL1 up-regulation occurs during acute ozone-induced stress and is mediated at least in part by ozone-induced recruitments of LEF-1 and AP-2α to the human CTNNAL1 promoter
General anaesthetic and airway management practice for obstetric surgery in England: a prospective, multi-centre observational study
There are no current descriptions of general anaesthesia characteristics for obstetric surgery, despite recent changes to patient baseline characteristics and airway management guidelines. This analysis of data from the direct reporting of awareness in maternity patients' (DREAMY) study of accidental awareness during obstetric anaesthesia aimed to describe practice for obstetric general anaesthesia in England and compare with earlier surveys and best-practice recommendations. Consenting patients who received general anaesthesia for obstetric surgery in 72 hospitals from May 2017 to August 2018 were included. Baseline characteristics, airway management, anaesthetic techniques and major complications were collected. Descriptive analysis, binary logistic regression modelling and comparisons with earlier data were conducted. Data were collected from 3117 procedures, including 2554 (81.9%) caesarean deliveries. Thiopental was the induction drug in 1649 (52.9%) patients, compared with propofol in 1419 (45.5%). Suxamethonium was the neuromuscular blocking drug for tracheal intubation in 2631 (86.1%), compared with rocuronium in 367 (11.8%). Difficult tracheal intubation was reported in 1 in 19 (95%CI 1 in 16-22) and failed intubation in 1 in 312 (95%CI 1 in 169-667). Obese patients were over-represented compared with national baselines and associated with difficult, but not failed intubation. There was more evidence of change in practice for induction drugs (increased use of propofol) than neuromuscular blocking drugs (suxamethonium remains the most popular). There was evidence of improvement in practice, with increased monitoring and reversal of neuromuscular blockade (although this remains suboptimal). Despite a high risk of difficult intubation in this population, videolaryngoscopy was rarely used (1.9%)
Fluid resuscitation in trauma
Appropriate fluid replacement is an essential component of trauma fluid
resuscitation. Once hemorrhage is controlled, restoration of
normovolemia is a priority. In the presence of uncontrolled
haemorrhage, aggressive fluid management may be harmful. The
crystalloid-colloid debate continues but existing clinical practice is
more likely to reflect local biases rather than evidence based
medicine. Colloids vary substantially in their pharmacology and
pharmacokinetics,and the experimental finding based on one colloid
cannot be extrapolated reliably to another. In the initial stages of
trauma resuscitation the precise fluid used is probably not important
as long as an appropriate volume is given. Later, when the
microcirculation is ′leaky′, there may be some advantages
to high or medium weight colloids such as hydroxyethyl starch.
Hypertonic saline solutions may have some benefit in patients with head
injuries. A number of hemoglobin solutions are under development, but
one of the most promising of these has been withdrawn recently. It is
highly likely that at least one of these solutions will eventually
become routine therapy for trauma patient resuscitation. In the
meantime, contrary to traditional teaching, recent data suggest that
restrictive strategy of red cell transfusion may improve outcome in
some critically ill patients
Fluid resuscitation in trauma
Appropriate fluid replacement is an essential component of trauma fluid
resuscitation. Once hemorrhage is controlled, restoration of
normovolemia is a priority. In the presence of uncontrolled
haemorrhage, aggressive fluid management may be harmful. The
crystalloid-colloid debate continues but existing clinical practice is
more likely to reflect local biases rather than evidence based
medicine. Colloids vary substantially in their pharmacology and
pharmacokinetics,and the experimental finding based on one colloid
cannot be extrapolated reliably to another. In the initial stages of
trauma resuscitation the precise fluid used is probably not important
as long as an appropriate volume is given. Later, when the
microcirculation is ′leaky′, there may be some advantages
to high or medium weight colloids such as hydroxyethyl starch.
Hypertonic saline solutions may have some benefit in patients with head
injuries. A number of hemoglobin solutions are under development, but
one of the most promising of these has been withdrawn recently. It is
highly likely that at least one of these solutions will eventually
become routine therapy for trauma patient resuscitation. In the
meantime, contrary to traditional teaching, recent data suggest that
restrictive strategy of red cell transfusion may improve outcome in
some critically ill patients
NDC-IVM: An automatic segmentation of optic disc and cup region from medical images for glaucoma detection
Prehospital management provided by medical on-scene commanders in tunnel incidents in Oslo, Norway – an interview study
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