Unlabelled: Helicobacter pylori (Hp) infection plays an important role in the genesis of peptic ulcer disease. In the absence of susceptibility testing, concomitant quadruple therapy is one of the most widely used eradication methods. In the absence of a study on four-drug therapy and the difficulty of studying antibiotic susceptibility in our context, we initiated this work in order to evaluate the efficacy of an empirical treatment with concomitant four-drug therapy currently available.
View Article and Find Full Text PDFPurpose: The aim of this study was to describe opportunities and challenges associated with the development and implementation of a program for supporting researchers underrepresented in biomedical research.
Approach: We describe a case study of the All of Us Researcher Academy supported by the National Institutes of Health (NIH), including feedback from participants, instructors, and coaches.
Findings: Lessons include the importance of inviting role models into learning networks, establishing and maintaining trusted relationships, and making coaches available for technical questions from researcher participants.
Unlabelled: the goal of this study was to investigate the internal hemorroid disease in our endoscopic center.
Method: This transversal study went from December 2011 to December 2012.
Results: Sixty cases of internal hemorroid desease were enroled with36 men and 24 women and a middle age of 47 ±14.
Triple-negative breast cancers (TNBC) expressing PD-L1 qualify for checkpoint inhibitor immunotherapy. Cyclin E/CDK2 is a potential target axis in TNBC; however, small-molecule drugs at efficacious doses may be associated with toxicity, and treatment alongside immunotherapy requires investigation. We evaluated CDK inhibition at suboptimal levels and its anti-tumor and immunomodulatory effects.
View Article and Find Full Text PDFAims: The goal of our work was to clarify the epidemiologicals, clinicals, etiologicals and prognostics of upper gastrointestinal bleeding at Segou Regional Hospital.
Patients And Methods: This cross-sectional study, which took place from October 1, 2017 to September 31, 2018, involved patients hospitalized for digestive hemorrhage.
Results: Upper gastrointestinal bleeding represented 9.
Purpose: The purpose of this study was to study hepatitis B virus infection in pregnant women.
Method: This was a one-year descriptive cross-sectional study carried out in the Gynecology-Obstetrics Department of the Gabriel Touré University Hospital.
Result: During this period, 796 pregnant people were seen in antenatal consultations.
Unlabelled: of this work was to study infection and gastric mucosa in cirrhotic patient.
Method: The study was comparative (case-indicator) and transversal from October 2015 to June 2016 in the gastroenterology and hepatology center of CHU Gabriel Touré of Bamako. Hp was identified in pathologic center of CHU du point "G" de Bamako.
Immunoglobulin E (IgE) antibodies are well known for their role in allergic diseases and for contributions to antiparasitic immune responses. Properties of this antibody class that mediate powerful effector functions may be redirected for the treatment of solid tumours. This has led to the rise of a new class of therapeutic antibodies to complement the armamentarium of approved tumour targeting antibodies, which to date are all IgG class.
View Article and Find Full Text PDFThe use of Trastuzumab (Herceptin), a monoclonal antibody (mAb) targeting HER2/neu, results in an increased median survival in Her2 breast cancer patients. The tumour mutational burden and the presence of tumour infiltrating lymphocytes (TILs) clearly correlate with response to trastuzumab. Here, we investigated if the immunogenicity of the transplantable rat-neu tumour cell line (TUBO) derived from a BALB/c-NeuT primary tumour is associated with the response to anti-neu mAb therapy.
View Article and Find Full Text PDFIntroduction: The term polyp refers to any relief formation on the digestive mucosa.The therapeutic endoscopic polypectomy is an effective method to colorectal polyp resection.
Objective: The maingoal of this work is to study the endoscopic aspects of colo-rectal polyps and to bring our experience on their treatment with endoscopic polypectomy.
Antibodies blocking the programmed death-ligand 1 (PD-L1) have shown impressive and durable responses in clinical studies. However, this type of immunotherapy is only effective in a subset of patients and not sufficient for rejection of all tumor types. In this study, we explored in two mouse tumor models whether the antitumor effect could be enhanced by the combined blockade of PD-L1 and transforming growth factor-β (TGF-β), a potent immunosuppressive cytokine.
View Article and Find Full Text PDFBackground: Maternal mortality is of considerable magnitude. It is particularly relevant to developing countries, including those in Sub-Saharan Africa. The aim of this work was to study the cases of maternal deaths in the Dori Regional Hospital, Burkina Faso in the Sahel region, by analyzing the epidemiological aspects of these deaths in order to guide decision-making.
View Article and Find Full Text PDFIn West Africa, identification of nonmalarial acute febrile illness (AFI) etiologic pathogens is challenging, given limited epidemiologic surveillance and laboratory testing, including for AFI caused by arboviruses. Consequently, public health action to prevent, detect, and respond to outbreaks is constrained, as experienced during dengue outbreaks in several African countries. We describe the successful implementation of laboratory-based arbovirus sentinel surveillance during a dengue outbreak in Burkina Faso during fall 2017.
View Article and Find Full Text PDFTherapy with tumor-specific Abs is common in the clinic but has limited success against solid malignancies. We aimed at improving the efficacy of this therapy by combining a tumor-specific Ab with immune-activating compounds. In this study, we demonstrate in the aggressive B16F10 mouse melanoma model that concomitant application of the anti-TRP1 Ab (clone TA99) with TLR3-7/8 or -9 ligands, and IL-2 strongly enhanced tumor control in a therapeutic setting.
View Article and Find Full Text PDFImmunomodulatory antibodies blocking interactions of coinhibitory receptors to their ligands such as CTLA-4, PD1 and PD-L1 on immune cells have shown impressive therapeutic efficacy in clinical studies. The therapeutic effect of these antibodies is mainly mediated by reactivating antitumor T cell immune responses. Detailed analysis of anti-CTLA4 antibody therapy revealed that an optimal therapeutic efficacy also requires binding to Fc receptors for IgG, FcγR, mediating depletion of intratumoral regulatory T cells.
View Article and Find Full Text PDFCytomegalovirus (CMV)-based vaccine vectors are promising vaccine platforms because they induce strong and long-lasting immune responses. Recently it has been shown that vaccination with a mouse CMV (MCMV) vector expressing the melanoma-specific antigen TRP2 (MCMV-TRP2) protects mice against outgrowth of TRP2-positive B16 melanoma tumors, and this protection was dependent on the induction of IgG antibodies. Here we demonstrate that, although mice lacking all receptors for the Fc part of IgG (FcγRs) develop normal IgG responses after MCMV-TRP2 vaccination, the protection against B16 melanoma was completely abrogated, indicating that FcγRs are indispensable in the downstream effector pathway of the polyclonal anti-TRP2 antibody response.
View Article and Find Full Text PDFBy their interaction with IgG immune complexes, FcγR and complement link innate and adaptive immunity, showing functional redundancy. In complement-deficient mice, IgG downstream effector functions are often impaired, as well as adaptive immunity. Based on a variety of model systems using FcγR-knockout mice, it has been concluded that FcγRs are also key regulators of innate and adaptive immunity; however, several of the model systems underpinning these conclusions suffer from flawed experimental design.
View Article and Find Full Text PDFWe report 1,327 probable cases of dengue in Burkina Faso in 2016. Of 35 serum samples tested by a trioplex test, 19 were confirmed dengue virus (DENV)‒positive: 11 DENV-2, 6 DENV-3, 2 nontypeable, and 1 DENV-2/DENV-3 co-infection. Molecular testing should be conducted to correctly identify causative agents in this complex infectious disease landscape.
View Article and Find Full Text PDFUnlabelled: The goal of this study was to investigate internal hemorrhoid disease. This cross-sectional study was conducted at the digestive endoscopy center of the Gabriel Toure University Hospital from December 2011 to December 2012. Sixty cases of internal hemorrhoid disease were found - 36 men and 24 women and an average age of 47 ±14.
View Article and Find Full Text PDFUnlabelled: Stomach cancer remains a public health problem. It is increasingly found in our regions, probably because of the greater availability and improvement of diagnostic facilities. The goal of this work was to study the epidemiological characteristics and prognosis of gastric cancer in the hepato-gastroenterology and general surgery wards of the Gabriel Toure university hospital.
View Article and Find Full Text PDFCongenital hypomagnesemia is a rare disease, with an impact on cognitive and neurological development. We report on three familial cases of congenital hypomagnesemia, two boys and one girl who belong to the same consanguineous family. They all presented neonatal seizures and a psychomotor developmental delay.
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