Publications by authors named "Sara Roth"

Article Synopsis
  • Scientists are developing a new method called FixNCut to help study tiny cells better!
  • This method helps keep the cells' important information safe during processing, which can make research results more reliable!
  • FixNCut can be used with different types of studies, so it’s a helpful tool for looking at cells from humans and mice!
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Purpose: Whilst the treatment paradigm for colorectal cancer has evolved significantly over time, there is still a lack of reliable biomarkers of treatment response. Treatment decisions are based on high-risk features such as advanced TNM stage and histology. The role of the tumour microenvironment, which can influence tumour progression and treatment response, has generated considerable interest.

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Background: This study aims to review and summarize the current up to date literature that explore the current treatment approaches to immune mediated colitis and the role of surgical specialties in the landscape of management.

Methods: A narrative review of papers was performed following a literature search through Medline, EMBASE and Cochrane Central databases pertaining to immune mediated colitis as an adverse event of cancer immunotherapy.

Results: Current guidelines for the diagnosis and treatment of immune mediated colitis mirror the approach to the workup of inflammatory bowel disease and guided by treating oncology and gastroenterology specialties.

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Background: Pre-clinical studies indicate that dry-cold-carbon-dioxide (DC-CO2) insufflation leads to more peritoneal damage, inflammation and hypothermia compared with humidified-warm-CO (HW-CO2). Peritoneum and core temperature in patients undergoing colorectal cancer (CRC) surgery were compared.

Methods: Sixty-six patients were randomized into laparoscopic groups; those insufflated with DC-CO2 or HW-CO2.

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Anal cancer is a rare disease that has doubled in incidence over the last four decades. Current treatment and survival of patients with this disease has not changed substantially over this period of time, due, in part, to a paucity of preclinical models to assess new therapeutic options. To address this hiatus, we set-out to establish, validate and characterise a panel of human anal squamous cell carcinoma (ASCC) cell lines by employing an explant technique using fresh human ASCC tumour tissue.

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Article Synopsis
  • The MYB protein, a transcription factor linked to colorectal cancer and adenoid cystic carcinoma, is being targeted for vaccination to help the immune system attack these tumors.
  • A first-in-human clinical trial will assess the safety and maximum tolerated dose of the TetMYB DNA vaccine, given with an anti-PD-1 antibody, involving 32 patients over three years.
  • If successful, this trial could lead to further studies and potentially validate a new immunotherapy approach for various cancers that exhibit MYB overexpression.
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Background: Colorectal cancer (CRC) is the second leading cause of cancer-related mortality in the USA. Over 80% of CRC develop from adenomatous polyps. Hence, early treatment and prevention of adenomas would lead to a significant decrease of disease burden for CRC.

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Purpose: The presence of tumor-infiltrating lymphocytes (TILs) in tumors is superior to conventional pathologic staging in predicting patient outcome. However, their presence does not define TIL functionality. Here we developed an assay that tests TIL cytotoxicity in patients with locally advanced rectal cancer before definitive treatment, identifying those who will obtain a pathologic complete response (pCR).

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In recent years, it has been demonstrated that immunotherapy is an effective strategy for the management of solid tumors. The origins of immunotherapy can be traced back to the work of William Coley, who elicited an immune response against sarcoma by injecting patients with a mixture of dead bacteria. Significant progress has been made since, with immune markers within the tumor now being used as predictors of cancer prognosis and manipulated to improve patient survival.

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The proteins secreted by parasitic nematodes are evolutionarily optimized molecules with unique capabilities of suppressing the immune response of the host organism. Neutrophil inhibitory factor (NIF), which is secreted by the dog hookworm Ancylostoma caninum, binds to the β2 integrin CD11b/CD18, which is expressed on human neutrophils, eosinophils, monocytes and macrophages and inhibits neutrophil-dependent lung injury and neutrophil invasion of ischaemic brain tissue. Neutrophils are key players in the pathogenesis of subepidermal autoimmune blistering diseases (sAIBDs), and their pathogenic activities are crucially dependent on β2 integrin functionality.

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Background: Due to the recent surge in environmental consciousness and the need to address childhood obesity, Farm to School programs have gained momentum. Even though Farm to School programs have increased in popularity, many schools still fail to take advantage of the benefits from such programs. School food service employees' lack of familiarity with the benefits of Farm to School programs or the means to overcome obstacles to implement such programs, along with school size, may represent key variables that serve to explain why more schools do not purchase more local foods for their schools.

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School nurses play an important role in identifying students who are at risk for Type 2 diabetes mellitus (T2DM). Few studies have screened Caucasian students, and none have targeted rural, low-income, elementary children. The five noninvasive risk factors used for this study were family history, high body mass index (BMI) for age/sex, racial/ethnic background, hypertension, and acanthosis nigricans.

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Objective: Determine the effects of a short-term, multi-faceted, point-of-selection intervention on college students' perceptions and selection of 10 targeted healthful foods in a university dining hall and changes in their self-reported overall eating behaviors.

Participants: 104 college students, (age 18-23) completed pre-I and post-I surveys.

Methods: Pre-survey collected at dining hall in April 2007, followed by 3-week intervention then post-survey collected via email.

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