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od vessels. Both liver and kidney tissues showed an increase in the amount of collagenous fibers and immune reactivity of fatty acid synthase. Moreover, other markers such as uric acid and total antioxidant capacity (TAC) were significantly decreased in acetamiprid treated rats. Co-administration of folic acid to the third group restored all the parameters cited above to near-normal values. Therefore, our investigation revealed that acetamiprid induce severe toxicity on different body systems and parameters and folic acid appeared to be a promising agent for protection against acetamiprid-induced toxicity.Sorafenib is an orally administered inhibitor of several tyrosine protein kinases. Treatment with sorafenib induces autophagy, which may suppress the growth of hepatocellular carcinoma (HCC) and other cancers. Aryl hydrocarbon receptor (AhR) is activated by xenbiotics and is involved in detoxification, but also plays other physiological roles. The following results were obtained. ITE and β-NF are endogenous and synthetic AhR ligands, respectively. One μM sorafenib can strongly suppress baseline as well as 0.5 μM ITE- and 1 μM β-NF-induced transcriptional activity of the aryl hydrocarbon response element (AHRE) in both human and mouse cells. Cytochrome p450 (CYP) 1A1 is mainly transcribed by activated AhR. Sorafenib (2-15 μM) strongly and dose-dependently suppressed baseline as well as 2 μM ITE- and 10 μM β-NF-induced CYP1A1 mRNA and protein expression. Ligand-activated AhR translocates from the cytoplasm to the nucleus. While sorafenib was found to suppress AhR activity, the drug alone was able to induce AhR translocation into the nucleus. Sorafenib's antagonistic action on AhR was comparable to that of the known AhR antagonist CH-223191 in human liver and ovarian cell lines. In summary, we demonstrate that sorafenib is a potent AhR antagonist and likely endocrine disruptor of the AhR. Moreover, sorafenib offers potential benefit for diseases treatable through AhR suppression strategies. Further investigation is warranted into sorafenib's AhR antagonistic behavior.Recent advances in functional genomics have paved the path toward improvement in disease modeling for hematologic malignancies such as acute myeloid leukemia (AML). Among these functional genomic approaches include genome-wide CRISPR screens, induced pluripotent stem (iPS) cell technology, viral- or vector-based approaches, and informatics-based approaches. As a prime example, induction of pluripotency in somatic cells has remarkable potential for understanding of disease systems and gaining insight into therapeutics. In the recent years, the molecular applications of this iPS technology have extended to multiple arenas within hematologic malignancies. In AML, the generation of iPS cells has informed our understanding of clonal evolution at the stem cell level. Human AML-iPS cells have been shown to procure leukemic phenotypes and functions and can chart clonal evolution of the entire disease. Furthermore, sequential CRISPR-based editing of human iPS cells can model clonal dynamics and can identify novel therapeutic targets. Our group has recently modeled clonal dynamics in TP53-mutant AML by annotating copy number variation against variant allele frequency to infer the subclonal structure. This focused review highlights functional genomic approaches in AML - namely how dynamic expression of genetic content within specific contexts in hematopoietic cells contributes to biological behavior and phenotypes of disease. We explore the use of these novel technologies towards molecular target validation for AML as of 2022.
The emergence of the COVID-19 pandemic has emphasized the importance of human behaviour in controlling the spread of disease. Hand hygiene is one of the most cost-effective ways to reduce the transmission of infections.
The aim of the present study was to use the theory of planned behaviour to examine hand hygiene beliefs and behaviours among hospital nurses in Hong Kong during the outbreak of COVID-19.
A cross-sectional study was conducted recruiting a sample of nurses working in public hospitals across Hong Kong to complete an online questionnaire examining attitudes, subjective norms, and perceived behavioural control towards hand hygiene behaviour; hand hygiene beliefs and hand hygiene knowledge were also examined.
A total of 122 nurses (73% female) participated in the study. Self-reported hand hygiene performance was 81.93% in the present sample and nearly two-thirds had engaged in post-registration infection control training. Findings revealed that subjective norms and perceived behavioural control were significantly and positively associated with hand hygiene behaviour through intentions. However, attitude had no effect on hand hygiene intention and behaviour in the present study.
The theory of planned behaviour provides a useful and effective framework in explaining the hand hygiene behaviour of nurses working in Hong Kong public hospitals during the COVID-19 outbreak. Continued commitment to improve hand hygiene practices is essential in the continued battle against the transmission of infectious diseases.
The theory of planned behaviour provides a useful and effective framework in explaining the hand hygiene behaviour of nurses working in Hong Kong public hospitals during the COVID-19 outbreak. Continued commitment to improve hand hygiene practices is essential in the continued battle against the transmission of infectious diseases.
Healthcare workers often experience skin dryness and irritation from performing hand hygiene frequently. Tolerability and acceptability are barriers to hand hygiene compliance, but there is little in the literature about exactly which types of alcohol-based hand rubs (ABHRs) have a higher dermal tolerance.
To compare the tolerability and acceptability of three different ABHR gel formulations in a population of adult volunteers.
Thirty-eight participants were randomized to three different sequences, testing three hand-rub gel formulations isopropanol-based (Hopigel®); ethanol-based (World Health Organization (WHO) gel formulation); and ethanol-based containing superfatting agents (Saniswiss Sanitizer Hands H1). Participants tested each of the formulations over a series of three five-day interventions, followed by a nine-day washout period. STAT5-IN-1 supplier At the end of each intervention, skin condition was assessed and feedback was collected.
Whereas no statistically significant difference was observed regarding tolerability between the three ABHR gel formulations tested, there were differences in acceptability. Participants preferred the smell of the H1 and WHO gel formulations (P= 0.003 and P= 0.040, respectively); H1 had a better texture than the WHO gel formulation (P < 0.001); and H1 was considered more pleasant overall than Hopigel (P= 0.037). Overall preference varied, but H1 was rated the favourite most often among participants, and the least favourite least often.
A high variability was observed in the participants' reactions to the different formulations tested. These results highlight the importance of giving healthcare workers a choice between different high-quality hand rubs to ensure maximum acceptability.
A high variability was observed in the participants' reactions to the different formulations tested. These results highlight the importance of giving healthcare workers a choice between different high-quality hand rubs to ensure maximum acceptability.
Ten percent povidone-iodine (PVP-I) was initially promoted as 'tamed iodine' as the chemical activity of the active biocide, uncomplexed or free molecular iodine (I
), is reduced 30- to 50-fold compared with Lugol's solution. The idea that I
is responsible for topical iodine staining and irritation remains widely held. However, there are no controlled studies that characterize the cytotoxicity and staining of the hydrophobic I
species compared with the other hydrophilic iodine species that comprise over 99.9% of the total iodine in topical iodine disinfectants.
To compare the staining properties of the I
species with other topical iodine disinfectants; to evaluate if the concentrations of I
in diluted PVP-I used to reduce severe acute respiratory syndrome coronavirus-2 in the nasal cavity are potentially cytotoxic; and to determine if high concentrations of I
can be delivered beyond the stratum corneum into the hypodermis, which could provide a mechanistic rationale for I
out-gassing.
Five formulations that contain numerous chemical species that contribute toxicity but not biocidal activity. I
can be delivered topically into hypodermis tissue without irritation.
The maximum concentration of I2 found in diluted PVP, approximately 25 ppm, is not cytotoxic or irritating. The potential clinical utility of I2 has been limited by incorporating this broad-spectrum biocide into acidic aqueous formulations that contain numerous chemical species that contribute toxicity but not biocidal activity. I2 can be delivered topically into hypodermis tissue without irritation.
An unprecedented rise in the number of COVID-19-associated mucormycosis (CAM) cases has been reported in India. Myriad hypotheses are proposed for the outbreak. We recently reported uncontrolled diabetes and inappropriate steroid therapy as significant risk factors for the outbreak. However, Mucorales contamination of hospital environment was not studied.
To perform a multi-centre study across India to determine possible Mucorales contamination of hospital environment during the outbreak.
Eleven hospitals from four zones of India representing high to low incidence for mucormycosis cases were included in the study. Samples from a variety of equipment used by the patients and ambient air were collected during May 19
, 2021 through August 25
, 2021.
None of the hospital equipment sampled was contaminated with Mucorales. However, Mucorales were isolated from 11.1% air-conditioning vents and 1.7% of patients' used masks. Other fungi were isolated from 18% of hospital equipment and surfaces, and 8.1% of used masks. Mucorales grew from 21.7% indoor and 53.8% outdoor air samples. Spore counts of Mucorales in air were significantly higher in the hospitals of North and South zones compared to West and East zones (P < 0.0001). Among Mucorales isolated from the environment, Rhizopus spp. were the most frequent genus.
Contamination of air-conditioning vents and hospital air by Mucorales was found. Presence of Mucorales in these areas demands regular surveillance and improvement of hospital environment, as contamination may contribute to healthcare-associated mucormycosis outbreaks, especially among immunocompromised patients.
Contamination of air-conditioning vents and hospital air by Mucorales was found. Presence of Mucorales in these areas demands regular surveillance and improvement of hospital environment, as contamination may contribute to healthcare-associated mucormycosis outbreaks, especially among immunocompromised patients.Emergency response planning guideline values are used to protect the public when there has been a short-term chemical release. These values serve the purpose of identifying areas where a hazard exists if the concentration of hazardous chemicals is exceeded for the specified exposure duration. This paper focuses on carbonyl chlorides, a class of highly irritant/corrosive chemical intermediates characterized by the reactive moiety R-COCl. Despite their unifying property of reacting with nucleophilic biopolymers/peptides lining the airways of the respiratory tract, their adverse outcome pathway (AOP), in addition to surface area dose, appears to be dominated by their site(s) of major deposition (liquid) or retention (gas) within the respiratory tract. Thus, the physicochemical properties "phase" and "lipophilicity" become more decisive for the AOP than the chemical structure. This complicates the grouping of portal-of-entry irritant chemicals for the read-across prediction of chemicals, especially those with semivolatile properties.
Website: https://www.selleckchem.com/products/stat-in-1.html
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