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To assess the glymphatic activity in patients with idiopathic normal pressure hydrocephalus (NPH) using the "Diffusion Tensor Image-Analysis aLong the Perivascular Space (DTI-ALPS)" method, and determine the feasibility of non-invasive MRI for the evaluation of the glymphatic function.
Between April 2017 and March 2019, 16 patients diagnosed with NPH and 16 age- and sex-matched controls were included. On 3T DTI-MRI, the diffusivities along x-, y-, and z-axes were measured, and the ALPS-index - a ratio that accentuated water diffusion along the perivascular space - was calculated by two independent readers. The inter-observer agreement was tested using the interclass correlation coefficient. The differences in the diffusivities and the ALPS-index between the NPH and control groups were compared using the Mann-Whitney test. The values were also compared according to the treatment response to the cerebrospinal fluid drainage and correlated with the callosal angle using a correlation coefficient.
The inter-observer agreements were excellent for the diffusivities and the ALPS-index. The diffusivity along the x-axis in the projection fibers area and the ALPS-index were significantly lower in patients with NPH (median, 0.556/1.181) than in the controls (0.610/1.540), respectively (P=0.032/< 0.0001). The ALPS-index was significantly lower in the NPH group who did not show treatment response than those who showed symptomatic relief (0.987/1.329; P<0.0001). The ALPS-index showed a significant positive correlation with the callosal angle (r=0.82, P=0.0001).
The DTI-ALPS method can be a useful imaging tool for identifying glymphatic dysfunction and for individually quantifying glymphatic activity in patients with NPH.
The DTI-ALPS method can be a useful imaging tool for identifying glymphatic dysfunction and for individually quantifying glymphatic activity in patients with NPH.
Functional Movement Disorders (FMDs) are challenging to treat. We assessed the effect of multidisciplinary inpatient rehabilitation, involving motor retraining, psychotherapy and psychotropic medication on FMD patient function and maintenance of improvement after one year.
FMD patients in a movement disorders clinic were referred for inpatient rehabilitation. selleck products Baseline, discharge and one year follow-up measures included Clinical Global Impression (CGI-severity, CGI-change); Depression and Somatic Symptom Scale (DSSS); Generalized Anxiety Disorder-7 (GAD-7); Patient Health Questionnaire-9 (PHQ-9); Post-traumatic stress disorder check-list for DSM-5 (PCL-5). Outcomes were analyzed with non-parametric models.
Seventeen patients completed rehabilitation. Thirteen completed one-year follow-up. Median CGI-severity was "markedly ill." At discharge, movement disorder improved in 93% (median CGI-change=2, "much improved") as assessed by neurologist and patient. Psychiatrist ratings showed improvement among 86.7%;habilitative success.Successful treatment of Acinetobacter baumannii infections require early and appropriate antimicrobial therapy. One of the first steps in this process is understanding which β-lactamase (bla) alleles are present and in what combinations. Thus, we performed WGS on 98 carbapenem-resistant A. baumannii (CR Ab). In most isolates, an acquired blaOXA carbapenemase was found in addition to the intrinsic blaOXA allele. The most commonly found allele was blaOXA-23 (n = 78/98). In some isolates, blaOXA-23 was found in addition to other carbapenemase alleles blaOXA-82 (n = 12/78), blaOXA-72 (n = 2/78) and blaOXA-24/40 (n = 1/78). Surprisingly, 20% of isolates carried carbapenemases not routinely assayed for by rapid molecular diagnostic platforms, i.e., blaOXA-82 and blaOXA-172; all had ISAba1 elements. In 8 CR Ab, blaOXA-82 or blaOXA-172 was the only carbapenemase. Both blaOXA-24/40 and its variant blaOXA-72 were each found in 6/98 isolates. link2 The most prevalent ADC variants were blaADC-30 (21%), blaADC-162 (21%), and blaADC-212 (26%). link3 Complete combinations are reported.
Opioid overdose deaths remain high in the U.S. Despite having effective interventions to prevent overdose deaths, there are numerous barriers that impede their adoption. The primary aim of the HEALing Communities Study (HCS) is to determine the impact of an intervention consisting of community-engaged, data-driven selection, and implementation of an integrated set of evidence-based practices (EBPs) on reducing opioid overdose deaths.
The HCS is a four year multi-site, parallel-group, cluster randomized wait-list controlled trial. Communities (n = 67) in Kentucky, Massachusetts, New York and Ohio are randomized to active intervention (Wave 1), which starts the intervention in Year 1 or the wait-list control (Wave 2), which starts the intervention in Year 3. The HCS will test a conceptually driven framework to assist communities in selecting and adopting EBPs with three components 1) a community engagement strategy with local coalitions to guide and implement the intervention; 2) a compendium of EBPs coupled with technical assistance; and 3) a series of communication campaigns to increase awareness and demand for EBPs and reduce stigma. An implementation science framework guides the intervention and allows for examination of the multilevel contexts that promote or impede adoption and expansion of EBPs. The primary outcome, number of opioid overdose deaths, will be compared between Wave 1 and Wave 2 communities during Year 2 of the intervention for Wave 1. Numerous secondary outcomes will be examined.
The HCS is the largest community-based implementation study in the field of addiction with an ambitious goal of significantly reducing fatal opioid overdoses.
The HCS is the largest community-based implementation study in the field of addiction with an ambitious goal of significantly reducing fatal opioid overdoses.
Metronomic chemotherapy (MCT) is the continuous administration of low dose chemotherapy. It has significant clinical efficacy with minimal toxicity as compared to conventional chemotherapy regimens. Thus represents an attractive treatment modality in selected patients with advanced breast cancer.
Patients who received MCT in the form of Capecitabine/Cyclophosphamide for the treatment of advanced breast cancer between May 2014 and October 2018 in Sahlgrenska University Hospital in Sweden and in Cork University Hospital, University Hospital Kerry and the South Infirmary-Victoria University Hospital in Ireland were identified. Medical records were retrospectively reviewed to collect data. All survival analyses were described by Kaplan-Meier curves and analysed with log-rank tests. The primary end-point was time on treatment, used as a surrogate marker for efficacy.
148 patients were identified (84 - Sweden, 64 - Ireland), with a median age of 64.2 (range 31-89). The overall mean time on treatment for all patients in both countries is 9.05 months (range 0.36 - 67.21). In patients with bone only disease the mean time on treatment was 10.1 months (range 0.7 - 67.2), compared to patients with visceral disease of 8.91 months (range 0.36 - 39.77). Treatment was ended in the majority of patients because of progression of disease, representing 108 patients (72.9%).
This is an observational, retrospective study demonstrating the real world effectiveness of MCT in the treatment of advanced breast cancer. In this cohort of unselected pre-treated patients, the efficacy of MCT was comparable with the survival outcomes of landmark clinical trials.
This is an observational, retrospective study demonstrating the real world effectiveness of MCT in the treatment of advanced breast cancer. In this cohort of unselected pre-treated patients, the efficacy of MCT was comparable with the survival outcomes of landmark clinical trials.
To determine if synchronous extrapulmonary malignancies in early stage lung cancer impact survival and cost of care in the current era of improved therapies and diagnostics.
Patients with stage I and II lung cancer were identified from the Ontario Cancer Registry and prognostic factors were obtained from provincial health administrative databases. Synchronous extrapulmonary malignancies were defined as those detected within 6 months from diagnosis of the lung primary. Survival was calculated using the Kaplan-Meier method and examined based on a 6-month landmark time point. The log-rank test and Cox proportional hazards regression was used to examine the effect of synchronous primaries on survival, univariately and after adjusting for prognostic factors. Cost of care was calculated by summing fees for all provincially funded services over 3 years.
In a cohort of 6890 patients, those with synchronous malignancy had a HR of 1.32 (p=0.026) for death in stage I patients, adjusted for other factors, while no association was found for stage II patients (HR=1.00, p=0.99). 18F-FDG-PET/CT up to 6 months prior to lung cancer diagnosis had a HR of 0.84 (p=0.003) for death adjusted for other factors. 3-year costs of care for these patients were $79,540 versus $54,520 in those without a synchronous malignancy (p<0.001).
Extrapulmonary malignancies in stage I lung cancer patients may negatively impact survival with no such association for stage II patients. 18F-FDG-PET/CT performed before lung cancer diagnosis is associated with better survival. Cost of care is higher in patients with synchronous malignancies.
Extrapulmonary malignancies in stage I lung cancer patients may negatively impact survival with no such association for stage II patients. 18F-FDG-PET/CT performed before lung cancer diagnosis is associated with better survival. Cost of care is higher in patients with synchronous malignancies.The negative elongation factor (NELF) is a four-subunit protein complex (NELF-E, NELF-A, NELF-B and NELF-C/D) that negatively regulates transcription elongation of RNA polymerase II (Pol II). Interestingly, upregulation of NELF-E subunit promotes hepatocellular carcinoma (HCC) and pancreatic cancer. In addition, we have previously shown that NELF complex fosters double-strand break (DSB)-induced transcription silencing and promotes homology-directed repair (HDR). However, the mechanisms underlying NELF-E regulation of HDR of DSBs remain unknown. Here, we show that NELF-E interacts with BRCA1 and promotes its recruitment to laser-microirradiated sites and facilitates ionizing radiation-induced foci (IRIF) of BRCA1 in HCC cells (Hep3B). The reduction in BRCA1 IRIF is accompanied by decreased RAD51 IRIF. A corollary to this, NELF-E-deficient Hep3B cells exhibit defective HDR of chromosomal DSBs induced by CRISPR-Cas9 system. Consequently, the disruption of NELF complex integrity, by NELF-E downregulation, sensitizes Hep3B cells to PARP inhibition. Altogether, our results suggest that NELF promotes HDR by facilitating BRCA1 and RAD51 IRIF formation and identify NELF complex as a novel synthetic lethal partner of PARP1.UdgX from Mycobacterium smegmatis (MsmUdgX) is a prototypical enzyme representing a new class of uracil-DNA glycosylases (UDG) closely related to the family 4 enzymes. It possesses a unique R-loop rich in positive residues and forms a covalent bond with single-stranded uracil-containing DNAs (ssDNA-Us) that is resistant to denaturants after the removal of the target uracil. We previously identified the H109E mutant of MsmUdgX that forms a weak covalent complex with ssDNA-U and yet possesses moderate uracil excision activity, but the mechanism of its action is not fully understood. To further study the catalytic process of MsmUdgX, we solved the high-resolution crystal structures of H109E in the free and DNA-bound forms, respectively. We found that the key residue Glu109 adopts a similar conformation to that of WT to form the covalent bond, suggesting that it still employs the same "excision-inhibition" mechanism to that of the WT enzyme. The enzyme remains nearly intact before and after the crosslinking reaction, but the first half of the R-loop exhibits large structural differences while the rest of the loop barely moves, owing to the salt-bridge interaction formed via Arg107.
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