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Gastro-oesophageal cancers (GEC) are resistant to therapy and lead to poor prognosis. The cancer stem cells (CSCs) and antiapoptotic pathways often confer therapy resistance. We sought to elucidate the antitumour action of a BCL-2 inhibitor, AT101 in GEC in vitro, in vivo and in a clinical trial.
Extensive preclinical studies in vitro and in vivo were carried out to establish the mechanism action of AT101 on targeting CSCs and antiapoptotic proteins. A pilot clinical trial in patients with GEC was completed with AT-101 added to standard chemoradiation.
Overexpression of BCL-2 and MCL-1 was noted in gastric cancer tissues (GC). AT-101 induced apoptosis, reduced proliferation and tumour sphere formation in MCL-1/BCL-2 high GC cells. Interestingly, AT101 dramatically downregulated genes (
) that control CSCs in GEC cell lines regardless of BCL-2/MCL-1 expression. Addition of docetaxel to AT-101 amplified its antiproliferation and induced apoptosis effects. In vivo studies confirmed the combination of AT101 and docetaxel demonstrated stronger antitumour activity accompanied with significant decrease of CSCs biomarkers (YAP1/SOX9). In a pilot clinical trial, 13 patients with oesophageal cancer (EC) received AT101 orally concurrently with chemoradiation. We observed dramatic clinical complete responses and encouraging overall survival in these patients. Clinical specimen analyses revealed that AT-101 dramatically reduced the expression of CSCs genes in treated EC specimens indicating antitumour activity of AT101 relies more on its anti-CSCs activity.
Our preclinical and clinical data suggest that AT-101 overcomes resistance by targeting CSCs pathways suggesting a novel mechanism of action of AT101 in patients with GEC.
Our preclinical and clinical data suggest that AT-101 overcomes resistance by targeting CSCs pathways suggesting a novel mechanism of action of AT101 in patients with GEC.
The relationship between diet quality and health care costs is unclear.
The aim of this study was to investigate the relationship between baseline diet quality and change in diet quality over time, with 15-year cumulative health care claims/costs.
Data from a longitudinal cohort study were analyzed.
Data for survey 3 (2001) (n= 7,868) and survey 7 (2013) (n= 6,349 both time points) from the 1946-1951 cohort of the Australian Longitudinal Study on Women's Health were analyzed.
Diet quality was assessed using the Australian Recommended Food Score (ARFS). Fifteen-year cumulative Medicare Benefits Schedule (Australia's universal health care coverage) data were reported by baseline ARFS quintile and category of diet quality change ("diet quality worsened" [ARFS change ≤ -4 points], "remained stable" [-3 ≤ change in ARFS ≤3 points], or "improved" [ARFS change ≥4 points]).
Linear regression analyses were conducted adjusting for area of residence, socioeconomic status, lifestyle factors, and private healt variety was associated with fewer health care claims and costs; however, this trend was not consistent across other subscales. Worsening diet quality over 12 years was linked with higher health care claims and costs.
Vegetable intake is below recommended levels among adults served by the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC).
The aim of this study was to determine whether a novel, theory-driven, farm-to-WIC intervention to promote vegetable intake showed promise of being successful and is therefore appropriate for efficacy testing.
From June 2019 to January 2020, the intervention was piloted in three WIC agency sites (one randomized to the intervention study group and two to the control group) selected based on similarity in size and the demographics of participants served.
Recruited between June 3, 2019 and August 1, 2019, participants were 297 primarily Hispanic adults served by a large WIC agency located in a densely populated urban area in New Jersey (160 were enrolled at the intervention site and 137 at control sites).
The intervention combined behaviorally focused instruction and handouts with the introduction of a WIC-based farmers' market, field trips to an area faf-reported vegetable intake were higher among participants in the intervention group as compared with the control group. Receipt of the intervention was associated with a greater likelihood of FMNP voucher redemption. Voucher redemption rates were 87% in the intervention group and 28% in the control group (odds ratio= 17.39, 95% confidence interval [8.64, 35.02]).
Meaningful associations found between the intervention, vegetable intake, and FMNP voucher redemption suggest that the program is appropriate for efficacytesting.
Meaningful associations found between the intervention, vegetable intake, and FMNP voucher redemption suggest that the program is appropriate for efficacy testing.
To retrospectively report on safety, pain relief and local tumor control achieved with percutaneous ablation of sacral bone metastases.
From February 2009 to June 2020, 23 consecutive patients (12 women and 11 men; mean age, 60±8 [SD] years; median, 60; range 48-80 years) with 23 sacral metastases underwent radiofrequency (RFA) or cryo-ablation (CA), with palliative or curative intent at our institution. Patients' demographics and data pertaining to treated metastases, procedure-related variables, safety, and clinical evolution following ablation were collected and analyzed. Pain was assessed with numerical pain rating scale (NPRS).
Sixteen (70%) patients were treated with palliative and 7 (30%) with curative intent. Mean tumor diameter was 38±19 (SD) mm (median, 36; range 11-76). External radiation therapy had been performed on five metastases (5/23; 22%) prior to ablation. RFA was used in 9 (39%) metastases and CA in the remaining 14 (61%). Thermo-protective measures and adjuvant bone consolidation were used whilst treating 20 (87%) and 8 (35%) metastases, respectively. Five (22%) minor complications were recorded. At mean 31±21 (SD) (median, 32; range 2-70) months follow-up mean NPRS was 2±2 (SD) (median, 1; range 0-6) vs. 5±1 (median, 5; range 4-8; P<0.001) at the baseline. Three metastases out of 7 (43%) undergoing curative ablation showed local progression at mean 4±4 (SD) (median, 2; range 1-8) months follow-up.
Percutaneous ablation of sacral metastases is safe and results in significant long-lasting pain relief. Local tumor control seems sub-optimal; however, further investigations are needed to confirm these findings due to paucity of data.
Percutaneous ablation of sacral metastases is safe and results in significant long-lasting pain relief. Local tumor control seems sub-optimal; however, further investigations are needed to confirm these findings due to paucity of data.
We describe a pipeline for creating and publishing online schematic 3D anatomical models, that requires minimal resources and facilitates an intuitive understanding of complex surgical structures, using the inguinal canal as an example.
The open source 3D modeling software Blender
was used to generate the inguinal canal model. With screen recording enabled, the model was annotated within a 3D space and the resultant video tutorial uploaded to YouTube. The 3D model was also exported to an online web portal that students could navigate independently. Feedback was collated from YouTube and the online platform over two years via video comments and an online form for platform visitors.
Department of Surgery, Western Precinct, University of Melbourne, Melbourne, Australia.
A total of 5,438 students utilized the online platform over the past 24 months. Video tutorials depicting the inguinal canal model were viewed a total of 162,181 times across the same period.
Feedback was uniformly positive with a predominant theme of faster comprehension times that were attributed to the visuospatial feedback complementing traditional resources.
The development of online 3D schematic models is achievable with the use of free and readily accessible computer software. These models allow students to "walk through" complex anatomical areas, which may enable them to better orientate and understand previously difficult to teach surgical concepts.
The development of online 3D schematic models is achievable with the use of free and readily accessible computer software. EGFR-IN-7 solubility dmso These models allow students to "walk through" complex anatomical areas, which may enable them to better orientate and understand previously difficult to teach surgical concepts.
High-income countries have increased the use of simulation-based training and assessment for surgical education. Learners in low- and middle-income countries may have different educational needs and levels of autonomy but they and their patients could equally benefit from the procedural training simulation provides. We sought to characterize the current state of surgical skills simulation in East, Central, and Southern Africa and determine residents' perception and future interest in such activities.
A survey was created via collaboration and revision between trainees and educators with experiences spanning high-income countries and low- and middle-income countries. The survey was administered on paper to 76 trainees (PGY2-3) who were completing the College of Surgeons of East, Central, and Southern Africa (COSECSA) Membership of the College of Surgeons examination in Kampala, Uganda in December 2019. Data from paper responses were summarized using descriptive statistics and frequencies.
We received resack of suitable tools and models (85%), funding (73%), and maintenance of facilities (49%).
Residents from East, Central, and Southern Africa strongly agree that simulation is a valuable educational tool and ought to be required during their surgical residency. Barriers to achieving this goal include availability of affordable tools, adequate funding and confidence in the value of the educational experience. Trainees affirm further efforts are necessary to make simulation more widely available in these contexts.
Residents from East, Central, and Southern Africa strongly agree that simulation is a valuable educational tool and ought to be required during their surgical residency. Barriers to achieving this goal include availability of affordable tools, adequate funding and confidence in the value of the educational experience. Trainees affirm further efforts are necessary to make simulation more widely available in these contexts.
In 2020, Step 1 of the United States Medical Licensing Examination (USMLE) changed to a pass/fail reporting. Step 1 has been one of the main factors for both inviting applicants for interviews and for ranking in Plastic Surgery. Due to this change, we hypothesize that Step 2 CK - currently the only remaining, universal quantitative metric - will become the main factor in the residency selection process.
A survey-based cross-sectional study of United States (US) integrated plastic surgery program directors (PSPDs) investigated the factors that would assume importance following the change in the reporting pattern.
Respondents reported that personal prior knowledge of the applicant, Letters of recommendation (LORs), Step 2 CK scores, and away rotation at the institution of interest would become the most important factors (median ratings of 5, 4.5, 4.5, 4.5, respectively on a 5-point Likert scale). Eighty-three percent of respondents were strongly dissatisfied with the conversion to pass/fail reporting. LOR's received the highest ranking (median,1; IQR,1-2) as the component used for offering away rotations after the implementation of the pass/fail reporting, followed by the applicant's medical school (median, 3; IQR, 3-4), and grades obtained during medical school (median,3; IQR,1.
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