Astrupfletcher7822
05) and organic carbon (P less then 0.05). Seasonally, the highest methane emission at Chorão was during the post-monsoon, at Betim was during the monsoon season (1305.34 ± 108.58 nM cm-2 h-1), and at the upstream station at Volvoi, the emission of methane was highest during the pre-monsoon season (1514.68 ± 130.94 nM cm-2 h-1). The influence of environmental parameters was more prominent on methane emission at the 3 stations during the monsoon season. Spearman's correlation analysis indicated that seasonal changes in methane emission are not only attributed to the influence of seasonal rainfall that leads to the fresh water input, but also to the variation in biogeochemical parameters.The role of long non-coding RNA (lncRNA) in endogenous cardiac regeneration remains largely elusive. The mammalian cardiomyocyte is capable of regeneration for a brief period after birth. This fact allows the exploration of the roles of critical lncRNAs in the regulation of cardiac regeneration. Through a cardiac regeneration model by apical resection (AR) of the left ventricle in neonatal mice, we identified an lncRNA named natriuretic peptide A antisense RNA 1 (NPPA-AS1), which negatively regulated cardiomyocyte proliferation. In neonates, NPPA-AS1 deletion did not affect heart development, but was sufficient to prolong the postnatal window of regeneration after AR. In adult mice, NPPA-AS1 deletion improved cardiac function and reduced infarct size after myocardial infarction (MI), associated with a significant improvement in cardiomyocyte proliferation. LF3 cost Further analysis showed that NPPA-AS1 interacted with DNA repair-related molecule splicing factor, proline- and glutamine-rich (SFPQ). A heteromer of SFPQ and non-POU domain-containing octamer-binding protein (NONO) was required for double-strand DNA break repair, but NPPA-AS1 was competitively bound with SFPQ due to the overlapped binding sites of SFPQ and NONO. NPPA-AS1 deletion promoted the binding of SFPQ-NONO heteromer, decreased DNA damage, and activated cardiomyocyte cell cycle re-entry. Together, loss of NPPA-AS1 promoted cardiomyocyte proliferation by stabilizing SFPQ-NONO heteromer-induced DNA repair and exerted a therapeutic effect against MI in adult mice. Consequently, NPPA-AS1 may be a novel target for stimulating cardiac regeneration to treat MI.
While clinical trials provide valuable data about efficacy of interventions, findings often do not translate into clinical settings. We report real world clinical outcomes of a 15-year service offering breast cancer survivors auricular acupuncture to manage hot flushes and night sweats (HFNS) associated with adjuvant hormonal treatments. This service evaluation aims to (1) assess whether usual practice alleviates symptoms in a clinically meaningful way and (2) compare these results with scientific evidence.
Data were analysed from 415 referrals to a service offering women eight standardised treatments using the National Acupuncture Detoxification Association (NADA) protocol. Outcome measures administered at baseline, end of treatment (EOT), and 4 and 18weeks after EOT included hot flush diaries, hot flush rating scale (HFRS) and women's health questionnaire (WHQ).
Over 2285treatments were given to 300 women; 275 (92.3%) completed all eight treatments. Median daily frequency of HFNS reduced from 9.6 (IQR 7.3) to 5.7 (IQR 5.8) at EOT and 6.3 (IQR 6.5) 18weeks after EOT. HFRS problem rating showed a clinically meaningful reduction of ≥ 2 points at all measurement points. WHQ showed improvements in several symptoms associated with the menopause. Two adverse events were reported, neither were serious. Results are comparable to published research.
This first analysis of a long-term auricular acupuncture service compares favourably with outcomes of other studies for reducing HFNS frequency and associated menopausal symptoms. In day-to-day clinical practice, NADA appears to be a safe effective intervention for breast cancer survivors.
This first analysis of a long-term auricular acupuncture service compares favourably with outcomes of other studies for reducing HFNS frequency and associated menopausal symptoms. In day-to-day clinical practice, NADA appears to be a safe effective intervention for breast cancer survivors.Animals that reproduce in temporary aquatic systems expose their offspring to a heightened risk of desiccation, as they must race to complete development and escape before water levels recede. Adults must therefore synchronise reproduction with the changing availability of water, yet the conditions they experience to trigger such an event may not relate to those offspring face throughout development, potentially leading to clutch failure. The sandpaper frog (Lechriodus fletcheri) breeds in ephemeral pools that dry within days to weeks after rainfall has ceased. We examined whether spawning frequency and offspring survival differed across two consecutive breeding seasons based on (1) rainfall at the moment of oviposition and throughout offspring development, and (2) pool volume, given their combined effect on hydroperiod. Reproduction was triggered by rainfall, with more spawn laid during periods of greater rainfall and in larger pools. While pool size was a predictor of offspring survival, rainfall during oviposition was not. Rather, follow-up rain events were required to prevent pools drying prior to metamorphosis, with rainfall evenness during development the strongest predictor of reproductive success. High clutch failure rates recorded in both seasons suggest that adults do not have the capability to predict rainfall frequency post-oviposition. We thus conclude that unpredictable rainfall leading to premature desiccation of spawning sites is the primary source of pre-metamorphic mortality for this species. Understanding the influence of rainfall predictability on offspring survival could be critical in predicting the effects of altered hydroperiod regimes due to climate change for species that exploit temporary waters.
MADS26 affecting maize seed germination was identified by GWAS and transcriptomics. Gene-based association analyses revealed three variations within MADS26 regulating seed germination traits. Overexpressed MADS26 in Arabidopsis improved seed germination. Seed germination ability is extremely important for maize production. Exploring the genetic control of seed germination ability is useful for improving maize yield. In this study, a genome-wide association study (GWAS) was conducted to excavate the significant SNPs involved in seed germination ability based on an association panel consisting of 300 lines. A total of 11 SNPs and 75 candidate genes were significantly associated with the seed germination traits. In addition, we constructed 24 transcriptome libraries from maize seeds at four germination stages using two inbred lines with contrasting germination rates. In total, 15,865 differentially expressed genes were induced during seed germination. Integrating the results of GWAS and transcriptome analysis overexpressing MADS26 increased the seed germination ability in Arabidopsis. These findings will contribute to understanding of the genetic and molecular mechanisms on seed germination and the genetic modification of seed germination ability in maize.Recent analyses conducted by German official food control reported detection of the aromatic amides N-(2,4-dimethylphenyl)acetamide (NDPA), N-acetoacetyl-m-xylidine (NAAX) and 3-hydroxy-2-naphthanilide (Naphthol AS) in cold water extracts from certain food contact materials made from paper or cardboard, including paper straws, paper napkins, and cupcake liners. Because aromatic amides may be cleaved to potentially genotoxic primary amines upon oral intake, these findings raise concern that transfer of NDPA, NAAX and Naphthol AS from food contact materials into food may present a risk to human health. The aim of the present work was to assess the stability of NDPA, NAAX and Naphthol AS and potential cleavage to 2,4-dimethylaniline (2,4-DMA) and aniline during simulated passage through the gastrointestinal tract using static in vitro digestion models. Using the digestion model established by the National Institute for Public Health and the Environment (RIVM, Bilthoven, NL) and a protocol recommended by the Eurotagenic and/or carcinogenic aromatic amine 2,4-DMA, risk assessment based on assumption of 100% cleavage to the primary aromatic amines would appear to overestimate health risks related to the presence of aromatic amides in food contact materials.Hepatocellular carcinoma (HCC) is an aggressive malignancy, and its effective treatment has been hampered by drug resistance. Extracellular vesicle (EV) delivery of TNF-related apoptosis-inducing ligand (TRAIL) (EV-T) was demonstrated to be superior to recombinant TRAIL (rTRAIL) for cancer treatment previously. And AZD5582, a potent antagonist of inhibitors of apoptosis proteins (IAPs) can potentiate apoptosis-based cancer therapies. However, the combination of EV-T and AZD5582 has never been examined for their possible apoptosis inducing synergism in cancers. In this study, we proposed and tested the combination of EV-T and AZD5582 as a potential novel therapy for effective treatment of HCC. Two HCC lines Huh7 and HepG2 that are both resistant to rTRAIL were examined. The results confirmed that AZD5582 and EV-T are synergistic for apoptosis induction in some cancer lines including Huh7 and HepG2 while sparing normal cells. More importantly, this study revealed that TRAIL sensitization by AZD5582 is mediated ial and necessary for the synergism between AZD5582 and nanosomal TRAIL. In vivo the combined therapy with AZD5582 and nanosomal TRAIL led to complete eradication of hepatocarcinoma tumors. This study has rationalized the next development of a combination therapy with AZD5582 and nanosomal TRAIL for cancer treatment.SARS-CoV-2 has evolved to enter the host via the ACE2 receptor which is part of the kinin-kallikrein pathway. This complex pathway is only poorly understood in context of immune regulation but critical to control infection. This study examines SARS-CoV-2-infection and epithelial mechanisms of the kinin-kallikrein-system at the kinin B2 receptor level in SARS-CoV-2-infection that is of direct translational relevance. From acute SARS-CoV-2-positive study participants and -negative controls, transcriptomes of nasal curettages were analyzed. Primary airway epithelial cells (NHBEs) were infected with SARS-CoV-2 and treated with the approved B2R-antagonist icatibant. SARS-CoV-2 RNA RT-qPCR, cytotoxicity assays, plaque assays, and transcriptome analyses were performed. The treatment effect was further studied in a murine airway inflammation model in vivo. Here, we report a broad and strong upregulation of kallikreins and the kinin B2 receptor (B2R) in the nasal mucosa of acutely symptomatic SARS-CoV-2-positive study inhibiting viral replication and spread.
We have previously shown that individuals with uncontrolled type 2 diabetes have a blunted rise in brain glucose levels measured by
H magnetic resonance spectroscopy. Here, we investigate whether reductions in HbA
normalise intracerebral glucose levels.
Eight individuals (two men, six women) with poorly controlled type 2 diabetes and mean ± SD age 44.8 ± 8.3years, BMI 31.4 ± 6.1kg/m
and HbA
84.1 ± 16.2mmol/mol (9.8 ± 1.4%) underwent
H MRS scanning at 4 Tesla during a hyperglycaemic clamp (~12.21mmol/l) to measure changes in cerebral glucose at baseline and after a 12week intervention that improved glycaemic control through the use of continuous glucose monitoring, diabetes regimen intensification and frequent visits to an endocrinologist and nutritionist.
Following the intervention, mean ± SD HbA
decreased by 24.3 ± 15.3mmol/mol (2.1 ± 1.5%) (p=0.006), with minimal weight changes (p=0.242). Using a linear mixed-effects regression model to compare glucose time courses during the clamp pre and post intervention, the pre-intervention brain glucose level during the hyperglycaemic clamp was significantly lower than the post-intervention brain glucose (p<0.