Gut microbiota in inflammation and colorectal cancer: A potential Toolbox for Clinicians.

Colorectal cancer (CRC) is a worldwide public health issue specifically in patients with chronic diseases associated with a western lifestyle, such as metabolic diseases and inflammatory bowel diseases (IBD). Interestingly, both metabolic disorders and IBD are characterized by a chronic state of inflammation that contributes to the carcinogenesis with specific alteration of the gut microbiota composition and function. Evidence now shows that this altered gut microbiota contributes fueling a chronic pro-inflammatory state in a vicious circle that can favor CRC development.

Early ileal resection in Crohn's disease is not associated with severe long-term outcomes: The ERIC study.

Background: Early complicated Crohn's disease (CD) may require ileal resection as first-line treatment.

Aim: To evaluate the long-term outcomes of patients who underwent early ileal resection.

Methods: We conducted a retrospective study in two inflammatory bowel diseases (IBD) referral centres, including patients with ileocaecal resection and segmental ileal resection within 5 years of CD diagnosis.

Gut dysbiosis in Crohn's disease: Never so close to solving the chicken-and-egg enigma: Commentary to "Gut microbiome composition is associated with future onset of Crohn's disease in healthy first-degree relatives, by Raygoza Garay JA et al., Gastroenterology 2023".

Crohn's disease (CD) is a chronic disease of the digestive tract whose pathogenesis remains not fully understood. Several studies have implicated the gut microbiota as a key player in the onset of gut inflammation. However, most of the data is based on case-control studies comparing patients with established disease with controls, usually healthy individuals.

[The morbidity and mortality review meetings in radiotherapy departments: Procedure, implementation and prospects of the "Proust" French national project].

Radiation-induced acute and late toxicity depends on several parameters. The type, severity and duration of morbidity are mainly related to irradiated volume, total dose and its fractionation and the intrinsic radiosensitivity of the patients. The follow-up of these toxicities is essential.

Interaction between Radiation Therapy and Targeted Therapies in HER2-Positive Breast Cancer: Literature Review, Levels of Evidence for Safety and Recommendations for Optimal Treatment Sequence.

: Over the past twenty years, anti-HER2 targeted therapies have proven to be a revolution in the management of human epidermal growth receptor 2 (HER2)-positive breast cancers. Anti-HER2 therapies administered alone or in combination with chemotherapy have been specifically studied. Unfortunately, the safety of anti-HER2 therapies in combination with radiation remains largely unknown.

Pathologic Response to Neoadjuvant Sequential Chemoradiation Therapy in Locally Advanced Breast Cancer: Preliminary, Translational Results from the French Neo-APBI-01 Trial.

Background: Radiation therapy (RT), a novel approach to boost the anticancer immune response, has been progressively evaluated in the neoadjuvant setting in breast cancer (BC).

Purpose: We aimed to evaluate immunity-related indicators of response to neoadjuvant chemoradiation therapy (NACRT) in BC for better treatment personalization.

Patients And Methods: We analyzed data of the first 42 patients included in the randomized phase 2 Neo-APBI-01 trial comparing standard neoadjuvant chemotherapy (NACT) and NACRT regimen in locally advanced triple-negative (TN) and luminal B (LB) subtype BC.

Gossip in the gut: Quorum sensing, a new player in the host-microbiota interactions.

Bacteria are known to communicate with each other and regulate their activities in social networks by secreting and sensing signaling molecules called autoinducers, a process known as quorum sensing (QS). This is a growing area of research in which we are expanding our understanding of how bacteria collectively modify their behavior but are also involved in the crosstalk between the host and gut microbiome. This is particularly relevant in the case of pathologies associated with dysbiosis or disorders of the intestinal ecosystem.

How did we take care of our older cancer patients during the first COVID-19 wave? The French experience.

Background: The management of older cancer patients has been highly challenging for clinicians in a health-care system operating at maximum capacity during the COVID-19 pandemic.

Patients And Methods: We analyzed data from 9 different institutions. The primary endpoint was to assess the prevalence of adapted patient care during the pandemic for elderly cancer patients.

Radiation Therapy Delivery Challenges in Older Patients During Coronavirus Disease 2019 Pandemic.

Purpose: The management of older patients in radiation therapy (RT) departments has been challenging in the context of the Coronavirus Disease 2019 (COVID-19) outbreak. We report our experience of RT adapted schedules or strategy changes in older patients during the COVID-19 pandemic.

Methods And Materials: Patients aged ≥75 years were recruited during weekly chart rounds.

Hemostatic radiotherapy for bladder cancer-related hematuria in patients unfit for surgery: is there any impact of fractionation schedule?

Purpose: The optimal schedule for palliative external beam radiotherapy (EBRT) in patients with bladder tumors with hematuria unfit for surgery remains undefined. This study aimed to assess the clinical hemostatic efficacy and safety of two EBRT hypofractionated schedules.

Methods: From February 2008 to October 2017, 31 patients were referred to our department for palliative hemostatic bladder irradiation.

Evaluation of medical practices in oncology in the context of the COVID-19 pandemic in France: Physicians' point of view: the PRATICOVID study.

The cancer population seems to be more susceptible to COVID-19 infection and have worse outcomes. We had to adapt our medical practice to protect our patients without compromising their cancer prognosis. The national PRATICOVID study aims to describe the adaptation of cancer patient care for this population.

[Adjuvant and neoadjuvant radiotherapy in breast cancer: A literaure review and update on the state of the evidence in 2020].

Radiation therapy has benefited from many developments over the past 20 years. These developments are mainly linked to the technology, imaging and informatics evolutions which allow better targets definitions, ensure better organs-at-risk sparing and excellent reproducibility of treatments, with a perfect control of patient positioning. In breast cancer radiotherapy, the evolution was marked by the possibility of reducing the duration of treatments from 6-7 to 3-4 weeks by using hypofractionated regimens, or by further reducing the irradiation to one week when treatment is solely focalised to the tumour bed.

Radiation Therapy Department Reorganization during the Coronavirus Disease 2019 (COVID-19) Outbreak: Keys to Securing Staff and Patients During the First Weeks of the Crisis and Impact on Radiation Therapy Practice from a Single Institution Experience.

Purpose: During the first weeks of the coronavirus disease 2019 (COVID-19) outbreak in France, it was necessary to clearly define organizational priorities in the radiation therapy (RT) departments. In this report, we focus on the urgent measures taken to reduce risk for both our staff and patients by reducing the number of patients receiving treatment.

Methods And Materials: We reviewed the fractionation schemes for all patients in our department, including those receiving treatment and those soon to start treatment.

Axillary nodal irradiation practice in the sentinel lymph node biopsy era: Comparison of the contemporary available 3D and IMRT techniques.

Objective: Our study aimed to compare regional node coverage and doses to the organ at risk (OAR) using conventional technique (CT) "AMAROS" (AT) intensity-modulated radiation therapy (IMRT) techniques in patients receiving regional nodal irradiation (RNI) for breast cancer (BC).

Methods: We included 30 consecutive patients with BC who received RNI including axillary nodes. Two independent and blinded dosimetric RNI plans were generated for all patients.

[Biologic effects of high doses per fraction].

The radiobiological concepts described for conventional doses per fraction (1.8 to 2Gy) seem difficult to translate to high doses per fraction radiobiology. In fact, specific mechanisms are involved during high dose per fraction irradiation, involving vascular microenvironment damage and anti tumor immune response.

[Functional iron deficiency, inflammation and fatigue after radiotherapy].

Radiation therapy is associated with a fatigue in the majority of patients with a relative variability according to the type of the tumour, comorbidities, associated treatments and the extent of the irradiation. Its origin is multifactorial. One explanation described is that fatigue could be related to the inflammation caused by irradiation exposure.