Tau promotes oxidative stress-associated cycling neurons in S phase as a pro-survival mechanism: Possible implication for Alzheimer's disease.

Multiple lines of evidence have linked oxidative stress, tau pathology and neuronal cell cycle re-activation to Alzheimer's disease (AD). While a prevailing idea is that oxidative stress-induced neuronal cell cycle reactivation acts as an upstream trigger for pathological tau phosphorylation, others have identified tau as an inducer of cell cycle abnormalities in both mitotic and postmitotic conditions. In addition, nuclear hypophosphorylated tau has been identified as a key player in the DNA damage response to oxidative stress.

Revisiting the involvement of tau in complex neural network remodeling: analysis of the extracellular neuronal activity in organotypic brain slice co-cultures.

Tau ablation has a protective effect in epilepsy due to inhibition of the hyperexcitability/hypersynchrony. Protection may also occur in transgenic models of Alzheimer's disease by reducing the epileptic activity and normalizing the excitation/inhibition imbalance. However, it is difficult to determine the exact functions of tau, because tau knockout () brain networks exhibit elusive phenotypes.

[Adapted physical activity and metastatic cancer: What needs and expectations?].

Unlabelled: This French study aimed to evaluate oncologists' and patients' perception of physical activity, particularly adapted physical activity, in order to identify the obstacles and levers to its practice in patients with metastatic cancer.

Method: Between October 2019 and March 2020, 60 medical oncologists and 305 patients with metastatic cancer were asked to fill in a self-completed questionnaire.

Results: The benefits of physical activity are recognised by most oncologists and patients.

[Nomadism of patients treated by radiotherapy in Île-de-France: Does our health system have as much money to waste?].

Purpose: Human, material, and financial resources being limited, the organization of the care system must allow an efficient allocation of resources. The management of cancers leads to specific and repetitive care for which the reimbursement of transport costs represents a high cost. We carried out an analysis of the additional transport costs, linked to the care of patients in Île-de-France, in a center other than the radiotherapy center closest to their home.

Prevalence and predictive value of pre-therapeutic sarcopenia in cancer patients: A systematic review.

Background & Aims: To assess the prevalence of sarcopenia before cancer treatment and its predictive value during the treatment.

Methods: We searched MEDLINE via PubMed for articles published from 2008 to 2016 that reported prospective observational or interventional studies of the prevalence of pre-therapeutic sarcopenia and its consequences in adults with cancer who were 18 years or older. Two independent reviewers selected articles based on titles and/or abstracts before a complete review.

A Practical Approach to Fatigue Management in Colorectal Cancer.

Cancer-related fatigue is serious and complex, as well as one of the most common symptoms experienced by patients with colorectal cancer, with the potential to compromise quality of life, activities of daily living, and ultimately survival. There is a lack of consensus about the definition of cancer-related fatigue; however, definitions have been put forward by the European Association for Palliative Care (EAPC) and the National Comprehensive Cancer Network (NCCN). Numerous cancer- and treatment-related factors can contribute to fatigue, including disease progression, comorbidities, medical complications such as anemia, side effects of other medications, and a number of physical and psychologic factors.

Role of physical activity and sport in oncology: scientific commission of the National Federation Sport and Cancer CAMI.

This overview reports published data about the interaction between physical activity and sport during and after cancer on one hand and improvement in psychological parameters, survival and biological mechanisms underlying this effect on the other hand. Practising physical activity and sport during cancer modifies parameters assessing fatigue and quality of life and reduces symptoms of depression. An association also exists between the practise of physical activity and sport and overall and cancer-specific survivals, especially after breast cancer, colon cancer and prostate cancer.

Impact of physical activity on cancer-specific and overall survival of patients with colorectal cancer.

Background. Physical activity (PA) reduces incidence of colorectal cancer (CRC). Its influence on cancer-specific (CSS) and overall survival (OS) is controversial.

Upfront association of carboplatin plus pemetrexed in patients with brain metastases of lung adenocarcinoma.

Approximately 10% of patients with non-small cell lung cancer (NSCLC) have brain metastases at the time of diagnosis. When surgical resection is not possible, whole brain radiotherapy is the standard of care, with a cerebral response rate of approximately 30%. We report our experience with an upfront association of carboplatin and pemetrexed (areas under the curve, 5 and 500 mg/m(2), respectively), every 3 weeks, in 30 patients presenting with newly diagnosed brain metastases and NSCLC.

[Radiation-induced nephropathy].

Background: The kidneys are dose-limiting organs when total body irradiation or irradiation of the digestive tract is planned. The incidence of radiation-induced toxicity is probably underestimated due to its latency and confounding factors like chemotherapy.

Material And Methods: A search of the literature for radiation induced renal toxicity was performed.

[Nonsurgical treatment of chronic radiation-induced hemorrhagic proctitis].

The incidence of radiation-induced chronic hemorrhagic proctitis is less than 10 to 20%. The onset of this proctitis is delayed relative to the radiation therapy and generally develops from 6 to 24 months later. There are numerous predisposing factors, the most important of which is the radiation therapy dose: risk increases exponentially above 40-45 Gy.

[Initial pretherapeutic assessment of anal epidermoid carcinoma].

Anal epidermoid carcinoma is a rare malignant tumor, comprising less than 5% of all carcinomas of the colon, rectum, and anus. The primary therapy now includes radiotherapy, often in combination with chemotherapy. Radical surgery is now rarely indicated.

Phase II study of paclitaxel combined with vinorelbine in patients with advanced breast cancer.

Paclitaxel and vinorelbine are two drugs active against breast cancer. A phase II study was initiated with the aim of assessing the efficacy and feasibility of the combination. Twenty-six patients presenting with advanced breast cancer with a taxane- and vinorelbine-free line of chemotherapy were included and treated with vinorelbine (20 mg/m2 on D1, D15), followed by paclitaxel (175 mg/m2 on D1), every 3 weeks.

[The interest of radiotherapy in cancer of the rectum].

Context: Surgery remains the standard treatment of rectal cancer. The risk of local recurrence is still a serious problem with an incidence of between 15 and 45%. This depends on the initial TNM stage and the surgical technique.

Vinorelbine and ifosfamide for unresectable non-small cell lung cancer.

Purpose: The study assessed the efficacy of combination therapy with vinorelbine and ifosfamide in patients with unresectable non-small cell lung cancer.

Patients And Methods: Forty patients with non-small cell lung cancer whose tumour was unresectable by virtue of the extent of disease or severity of impairment of lung function and who were considered unsuitable for treatment with a cisplatin based treatment were entered onto the study. Thirty-four patients received two cycles of treatment and were considered to be evaluable for response.

[Treatment of advanced kidney cancer using recombinant erythropoietin].

Objectives: Study of the antitumour effects of erythropoietin on metastatic renal cell carcinoma.

Methods: After giving their informed consent, 20 patients with histologically proven metastatic renal cell carcinoma received subcutaneous recombinant erythropoietin three times a day at a dose of 150 IU/kg when haemoglobin was less than or equal to 12 g/dL or 75 IU/kg when haemoglobin was higher than 12 g/dL. Treatment was continued for a minimum of 8 weeks before reassessment and was continued thereafter, except in the case of progression or excessive toxicity.

[Induction chemotherapy followed by concomitant combined radiotherapy and chemotherapy in stage III non-small cell bronchial carcinoma].

Purpose: To determine the efficacy and safety of induction chemotherapy followed by concomitant chemoradiotherapy in the treatment of stage III non-small cell lung cancer and whether the response to induction chemotherapy can predict the response to subsequent chemoradiotherapy and survival.

Materials And Methods: Between December 1987 and June 1993, 46 patients with previously untreated stage III non-small cell lung cancer received every 21 days induction chemotherapy (ICT) including three cycles of 5-fluorouracil (600 mg/m2/d in short infusion from d1 to d5), cisplatin (15 mg/m2/d from d1 to d5), etoposide (50 mg/m2/d from d1 to d5) and hydroxyurea (1,500 mg/d from d1 to d5). The first 21 patients also received bleomycin (3 mg/m2/d from d1 to d5).

Acute non-lymphocytic leukemia following FAM combination adjuvant chemotherapy for gastric and lung adenocarcinoma.

We report 2 cases of acute non-lymphocytic leukemia with distinct clinical and karyotypic features shared by therapy-related acute non-lymphocytic leukemia occurring after adjuvant chemotherapy including 5-fluorouracil, doxorubicin and mitomycin C. Our observation suggests a causal relationship between exposure to mitomycin C and the occurrence of acute non-lymphocytic leukemia.