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Herein, the available evidence relevant to evaluating the postulated MOAs for leukemia following formaldehyde inhalation exposure is organized in the IPCS MOA Framework. The integration of all the available evidence clearly highlights the limited amount of data that support any of the postulated MOAs and demonstrates a significant amount of research supporting the null hypothesis that there is no causal association between formaldehyde inhalation exposure and leukemia. These analyses result in a lack of confidence in any of the postulated MOAs, increasing confidence in the conclusion that there is a lack of biological plausibility for a causal association between formaldehyde inhalation exposure and leukemia.Research demonstrates that both peer socialization and underage drinking play a significant role in teen dating violence. However, less is known about the lasting effects of these risk factors on boys' ability to form healthy romantic relationships as they get older. The present study examined whether boys who perceived their peers would respect them more for having sex and those who engaged in past year heavy alcohol use would be more likely to perpetrate sexual intimate partner violence (IPV) in young adulthood compared to boys who did not endorse perceived peer approval for sex or report past year heavy drinking. Analyses were conducted using a sample of boys (n = 1,189) from Waves I and III of the National Longitudinal Study of Adolescent to Adult Health (Add Health). A logistic regression was conducted to assess the relationship between perceived peer approval to have sex and heavy alcohol use at Wave I and sexual IPV at Wave III, after adjusting for demographic factors and other correlates of sexual IPV at Wave I, including age, race/ethnicity, sexual initiation in adolescence, parental attachment, annual family income, and neighborhood poverty. Boys who believed they would gain peer respect by having sex and boys who reported getting drunk in the last 12 months, regardless of how often, were significantly more likely to report sexual IPV in young adulthood compared to boys who did not endorse either of these factors. Targeting boys' perceived peer norms regarding sexual activity and heavy alcohol use may therefore be especially important for preventing sexual IPV later in life.Environmental DNA (eDNA) is gaining traction in conservation ecology as a powerful tool for detecting species at risk. We developed a quantitative polymerase chain reaction assay to detect a DNA amplicon fragment of the mitochondrial nicotinamide adenine dinucleotide locus of the Blanding's turtle (Emydoidea blandingii) for detecting overwintering individuals. Seventy-eight water samples were collected from 17 wetland sites in Ontario, Canada. We used traditional field data to identify a priori positive and negative control sites. Fifty percent of positive control sites amplified. Detection was related to the number of individuals estimated from field observations in at least one region surveyed. Positive control sites had lower total dissolved solids and electrical conductivity in relation to negative control sites. Shedding rates were within the same order of magnitude for brumating and active turtles. We recommend collecting additional samples at a larger number of locations to maximize detection. Recommended sampling design changes may overshadow the additional effects of water chemistry and low eDNA shedding rates. eDNA offers tremendous potential to practitioners conducting species at risk assessments in environmental consulting by providing a faster, more efficient method of detection compared with traditional surveys.Historically, the study of multiple goals has focused on the dynamics between two goals as the prototypical example of multiple goals. This focus on dyadic relations means that many issues central to the psychology of more than two goals are still unexplored. We argue that a deeper understanding of multiple-goal issues involves moving beyond two goals. Doing so not only reveals new insights about goal relations (e.g., how one dyadic relation affects another) but also introduces goal structure (how goals and goal relations are positioned relative to each other) as a variable in its own right worthy of study. In our review, we discuss current knowledge gaps, review methodologies both in terms of existing techniques and novel techniques we propose, and highlight new directions from moving beyond two goals-what new questions emerge and what dynamics, including intersectional issues (e.g., between goal properties and goal structure), become possible to explore.Background and purpose - Van Neck-Odelberg disease (VND) is a self-limiting skeletal phenomenon characterized by a symptomatic or asymptomatic uni- or bilateral overgrowth of the pre-pubescent ischiopubic synchondrosis. It is frequently misinterpreted as a neoplastic, traumatic, or infectious process, often resulting in excessive diagnostic and therapeutic measures. This study assessed the demographic, clinical, and radiographic features of the condition and analyzed diagnostic and therapeutic pathways in a large single-center cohort.Patients and methods - We retrospectively analyzed 21 consecutive patients (13 male) with a median age of 10 years (IQR 8-13) and a median follow-up of 5 years (IQR 42-94 months), who were diagnosed at our department between 1995 and 2019.Results - VND was unilateral in 17 cases and bilateral in 4 cases. Initial referral diagnoses included suspected primary bone tumor (n = 9), fracture (n = 3), osteomyelitis (n = 2), and metastasis (n = 1). The referral diagnosis was more likely to be VND in asymptomatic than symptomatic patients (4/6 vs. 2/15). More MRI scans were performed in unilateral than bilateral VND (median 2 vs. 0). All 15 symptomatic patients underwent nonoperative treatment and reported a resolution of symptoms and return to physical activity after a median time of 5 months (IQR 0-6).Interpretation - By understanding the physiological course of VND during skeletal maturation, unnecessary diagnostic and therapeutic measures can be avoided and uncertainty and anxiety amongst affected patients, their families, and treating physicians can be minimized.Background N-methyl-glycine (sarcosine) may improve symptoms of schizophrenia via NMDA-receptor modulation. We undertook a systematic review and meta-analysis to determine the short- and long-term effectiveness of sarcosine for schizophrenia.Research design and methods The databases Medline, Scopus, EMBASE, Cochrane Library, and PsycINFO were searched. We included six independent randomized controlled trials of sarcosine as add-on treatment to current antipsychotic medication, involving 234 adult participants with schizophrenia, and reporting data on symptom severity. Standardized mean differences (SMDs) were used to assess continuous outcomes.Results In all of the trials, sarcosine was administered orally at 2 g/day. Treatment with sarcosine did not show a significant effect size at any of the pre-established time points (2, 4, 6, or >6 weeks), due to marked quantitative heterogeneity. However, sarcosine was associated with significant reductions of symptom severity in the subgroups of people with chronic schizophrenia and no treatment resistance (namely, without added-on clozapine) in relation to the SMD after 6 weeks treatment at -0.36 and -0.31, respectively.Conclusions People with chronic and non-refractory schizophrenia may benefit from the use of sarcosine as an add-on treatment to antipsychotic medication. Due to the good tolerability of this compound, future trials with larger sample sizes appear worthwhile.
Several studies have examined the prognostic significance of IDH1/2 mutation, 1p/19q codeletion and MGMT promoter methylation in lower-grade gliomas but most of these used the 2007 fourth edition of the WHO classification. We evaluate prognostic significance of these indicators in the 2016 WHO updated fourth edition of CNS tumor classification.
A total of 180 intracranial glioma patients diagnosed according WHO 2016 edition between December 2016 and December 2018 Jinling Hospital (Nanjing, China) were reviewed retrospectively. We performed survival analysis on 109 patients with complete molecular pathology and follow-up data.
Histologically, 52 were diagnosed as astrocytoma (WHO grade II and III), 17 as oligodendrogliomas (WHO grade II and III) and 40 as GBMs. At last follow-up, 50.5% patients had experienced tumor progression and 34.9% had died. Among grade II and III cases 36.2% experienced tumor progression and 27.5% died. In univariate Kaplan-Meier analysis, multifocal tumor, EGFR mutation or amplif EGFR mutation or amplification and PIK3CA mutation into the diagnostic criteria for DLGGs to supplement WHO 2016 pathological criteria.Comprehensive molecular testing of individual tumors has led to the identification of novel molecularly defined cancer therapies and treatment indications. Given low frequencies of many molecular alterations, efficacy of therapies used to target them are often undefined, especially in the context of rare malignancies. Here we describe the first reported case of MET amplification in sinonasal undifferentiated carcinoma (SNUC), a rare cancer with a poor prognosis. The patient was treated with crizotinib, a tyrosine kinase inhibitor that targets c-MET, and experienced a complete response. Our report demonstrates the potential of employing precision oncology approaches in SNUC and other rare cancers.
The selection of a correct level in lumbar spinal stenosis (LSS) remains a common problem and is critically important to the effectiveness of this surgical treatment. Surgery is invasive, and extended laminectomy may lead to secondary surgical complications. The application of diffuse tensor imagining (DTI) and paraspinal mapping (PM) in addition to conventional magnetic resonance imaging (cMRI) may be helpful in this respect. However, the superiority of cMRI + DTI over cMRI+ (DTI or PM) in reducing decompression has not yet been established.
We compared the surgical levels, determined by cMRI + DTI and cMRI+ (DTI or PM) (self-control). Treatment outcome measurements were performed at two weeks, three months, six months, and twelve months postoperatively.
The surgical levels determined by cMRI ± DTI showed less than that determined by cMRI± (DTI or PM) with statistically significant differences
value = 0.0199) and cMRI ± PM with no statistically significant differences (
value = 0.5503).
The effectiveness of cMRI ± DTI in the reduction of the surgical levels in degenerative lumbar spinal stenosis is superior than that of cMRI± (DTI or PM).
The effectiveness of cMRI ± DTI in the reduction of the surgical levels in degenerative lumbar spinal stenosis is superior than that of cMRI± (DTI or PM).To date, only low pathogenic (LP) H5 and H7 avian influenza viruses (AIV) have been observed to naturally shift to a highly pathogenic (HP) phenotype after mutation of the monobasic hemagglutinin (HA) cleavage site (HACS) to polybasic motifs. The LPAIV monobasic HACS is activated by tissue-restricted trypsin-like enzymes, while the HPAIV polybasic HACS is activated by ubiquitous furin-like enzymes. However, glycosylation near the HACS can affect proteolytic activation and reduced virulence of some HPAIV in chickens. In 2012, a unique H4N2 virus with a polybasic HACS was isolated from quails but was LP in chickens. Whether glycosylation sites (GS) near the HACS hinder the evolution of HPAIV H4N2 remains unclear. Here, we analyzed the prevalence of potential GS in the N-terminus of HA1, 2NYT4 and 18NGT20, in all AIV sequences and studied their impact on H4N2 virus fitness. Although the two motifs are conserved, some non-H5/H7 subtypes lack one or both GS. Both sites were glycosylated in this H4N2 virus. Deglycosylation increased trypsin-independent replication in cell culture, cell-to-cell spread and syncytium formation at low-acidic pH, but negatively affected the thermostability and receptor-binding affinity.
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