Clinical Trials About "Evolution microsporidia extremely successful group eukaryotic intracellular parasites" RSS

07:15 EDT 30th March 2020 | BioPortfolio

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Showing "Evolution microsporidia extremely successful group eukaryotic intracellular parasites" Clinical Trials 1–25 of 20,000+

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Application of Real-time PCR Platform for Detection of Vittaforma Corneae Among Patients With Microsporidia Keratitis

Diagnosis of patients with microsporiosis relies on pathological findings as well as laboratory detection of the causative organism. The conventional laboratory diagnosis of microsporiosis relies on microscopic visualization of the characteristic V. Corneae organisms. We develop a fully automated molecular platform for detection of Vittaforma corneae among patients with microsporidia keratitis.


Clinical Investigation of Infections Due to Leishmanial Parasites

Mechanisms of host immune response to intracellular protozoa will be investigated in patients with naturally acquired infection employing a variety of in-vitro techniques. Both non-specific and antigen-specific humoral and cellular immune responses will be assessed. Parasites will be isolated from patients, cultivated in-vitro, and characterized. Responses to chemotherapy will be assessed parasitologically, immunologically and clinically.

Time to Infection With Malaria Parasites

This study will attempt to find out what effect mosquito insecticides have on the transmission of malaria in The Gambia. Eight hundred healthy men and women, aged 18 to 40 years, living in selected villages east of Farafenni town in The Gambia, West Africa will be screened for parasites. About 552 of these people are expected to be free of malaria and will form the study group. These people will participate in the study for 7 months and will be checked for the malaria-causing p...

Preventing Chronic Lung Disease in Extremely Premature Infants

The purpose of this study is to determine if an investigational drug can reduce respiratory complications in extremely premature babies through 12 months corrected age (CA), as compared to extremely premature babies receiving standard neonatal care alone

Co-adaptation Between HIV and CD8 Cellular Immunity

Our objective here is to characterize the viral evolution and viral factors determining HIV virulence, the evolution of the HIV reservoir in PBMC and the co-evolution of anti-HIV CD8 T cell repertoires. The coordinated study of virus evolution, host responses and identification of genetic determinants of virulence should allow to better understand mechanisms of HIV pathogenicity and persistence of mutations in viral reservoirs.

Investigating Intracellular and Plasma Imatinib Levels in Chronic Myeloid Leukemia

The purpose of this study is to find out if the level of imatinib in the bloodstream, and the level that leukemia cells will predict how quickly your chronic myeloid leukemia improves with the treatment. 1.1 Primary Objectives To determine if intracellular levels of Imatinib in leukemic blood cells within two weeks of treatment initiation of patients with chronic myeloid leukemia in chronic phase predicts molecular and cytogenetic response at 6 and 12 months post treatm...

Transfusions and Nitric Oxide Level in Preterm Infants

The purpose of this study is to better understand S-nitrosohemeglobin (SNO-Hb) in transfused blood of extremely preterm infants. The long term goal of the project is to identify variation in the SNO-Hb between packed red blood cell units, and between and among individual preterm infants pre and post-transfusion. Duke investigators are developing methods to replenish SNO-Hb, which, if successful, would improve RBC deformation in addition to providing a vasodilatory stimulation t...

Plasma and Intracellular Concentrations of Raltegravir and Etravirine Administered Once Daily

Hypothesis: the intracellular concentrations of raltegravir (RAL) and etravirine (ETV) administrated as 800 and 400 mg once a day, respectively, are similar to those obtained with the standard doses of 400 and 200 mg/12h, respectively. Objective: To analyze the plasma and intracellular concentrations of RAL and ETV administrated as 800 and 400 mg once daily respectively compared with standard doses of 400 and 200 mg/12h, respectively, and if they support its once daily adminis...

Post Market Clinical Follow-Up Study for EVOLUTION® BIOFOAM® Tibia and EVOLUTION® CS/CR Porous Femur

MicroPort (MPO) is conducting this PMCF study to evaluate the safety and effectiveness of its EVOLUTION® BIOFOAM® Tibia and EVOLUTION® Cruciate Sacrificing/Cruciate Retaining (CS/CR) Porous Femur components, including EVOLUTION® CS tibial inserts. This type of study is required by regulatory authorities for all devices that have been approved in Europe to evaluate the medium and long-term clinical evidence.

The Effect of Calcium Supplementation on Insulin Resistance and 24h Blood Pressure

Increased levels of intracellular calcium are thought to diminish maximal cellular response to insulin and induce insulin resistance. Also, both hypertension and diabetes are thought to be conditions of altered intracellular ionic state. The aim of the present study is to investigate the possible effect of oral calcium supplementation on intracellular ions, insulin sensitivity, 24-h blood pressure and sodium/hydrogen exchanger activity in patients with type 2 diabetes and essen...

Severe Malaria and Anti-malarial Drug Resistance in Cambodia

This study, conducted by the National Center for Malaria Control of Cambodia's Ministry of Health, the Guangzhou University of Traditional Chinese Medicine in the People's Republic of China, and the U.S. National Institutes of Health, will explore why some people with mild malaria progress to a severe form of the disease and why some malaria parasites are resistant to treatment. Malaria is caused by a parasite that is transmitted to humans through a mosquito bite. It can...

Pilot Study to Compare the Pharmacokinetics Parameters in Plasma and Intracellular of Raltegravir Administered Once a Day in Adult Patients Infected With HIV

The purpose of this study is to compare plasma and intracellular pharmacokinetic parameters of raltegravir 800 mg administered once daily in HIV infected patients.

Intracellular and Renal/Myocardial Tissue Concentrations of Cyclosporine A (CsA) and Rejection Frequency Following Transplantation

The primary objective is to investigate intralymphocyte concentrations of CsA in renal and heart transplant recipients to elucidate the association between the intracellular concentration and efficacy (rejection episodes and histology) in transplanted patients on CsA based immunosuppressive therapy.

Plasmatic L-AScorbic Acid in MYelodyplastic Syndroms and Controls

Myelodysplastic syndromes (MDS) is a group of heterogeneous diseases characterised by the clonal evolution of dysplastic hematopoietic stem cells. This evolution is associated with accumulation of cytogenetic mutations which leads to acute myeloid leukaemia (AML). Evolution of MDS is also associated with increase of reactive oxygen species (ROS). The increase of ROS is associated with accumulation of cytogenetic mutations. Ascorbic acid (AA) is an actor of the regulation of the...

Isolated Fetal Splenic Cyst : Prenatal Diagnosis and Postnatal Evolution

The aim of this study was to describe prevalence, radiologic and ultrasound evolution during pregnancy, postnatal evolution and treatment strategy in case of isolated fetal spelnic cyst

Ontogenesis of the P-Glycoprotein in Human Lymphocytes Influence of HIV and Antiretroviral Therapeutics

The P-glycoprotein (P-gp) is a membranous transporter that modulates the intracellular concentrations of many drugs and plays thus a major role in the efficacy of the therapeutics that act within the lymphocytes, such as antiretroviral drugs. We aim at studying the evolution of this transporter's expression and activity on lymphocytes in relation with the human development from newborns to adults. We also aim at studying the influence of HIV and antiretroviral treatments on thi...

Study of the Role of Dendritic Cells in the Recurrence of Hepatitis C After Liver Transplantation. Analysis of Hepatitis C Virus (HCV) Quasispecies Evolution.

Re-infection of the liver graft occurs universally following liver transplantation for HCV-induced end stage liver disease. Interestingly, the manifestation of HCV infection ranging from an asymptomatic carrier state to rapid progression to liver cirrhosis is extremely variable from one patient to another. The host and viral factors being responsible for the different course of HCV infection are poorly understood. Our study will focus on dendritic cells which are known to play ...

Pharmacokinetics of Intracellular TFV-DP and FTC-TP in HIV-infected Adolescents

Tenofovir (TFV) disoproxil fumarate (TDF) plus emtricitabine (FTC) or lamivudine (3TC) is the preferred nucleoside backbone of first-line antiretroviral therapy (ART) for adolescents in sub-Saharan Africa. In addition, TDF/FTC is recommended for preexposure prophylaxis (PrEP) for human immunodeficiency virus (HIV) infection in adolescents at substantial risk of acquisition of HIV infection, as well as for hepatitis B virus (HBV) treatment in those with HBV/HIV coinfection. The ...

Cohort Study in Uganda Comparing Artesunate + Amiodaquine (Coarsucam) Versus Artemether + Lumenfantrine (Coartem) in the Treatment of Repeated Uncomplicated Plasmodium Falciparum Malaria Attacks

Primary objective is to demonstrate the non-inferiority of PCR (Polymerase Chain Reaction) adjusted adequate clinical and parasitological response at Day 28 of Coarsucam versus Coartem, based on the first malaria attack of each patient. Secondary objectives: For the first attack: To compare the 2 groups of treatment in terms of: - Day 42 efficacy - Parasitological and fever clearance - Clinical and Biological tolerability - Evolution o...

Chloroquine and Amodiaquine for Treatment of Malaria in Children

This study will evaluate the efficacy of the treatment recommended by the National Malaria Programme in Guinea-Bissau as compared to a higher dose of chloroquine and to another anti-malarial drug, amodiaquine. The genetic basis of the parasites for developing resistance will be examined. Children coming to Bandim Health Centre with symptoms of malaria and a positive malaria test will be included. The children will be visited and malaria films will be obtained weekly until day 3...

Molecular Basis of Erythrocyte Invasion by Plasmodium Vivax Into Duffy-Negative Erythrocytes in Children in Bandiagara, Mali

Background: Malaria is caused by parasites carried by some mosquitos. When the mosquitos bite people, the parasites can infect them. One of these parasites is Plasmodium vivax (P. vivax). Some children have P. vivax in their blood. They did not have malaria symptoms, but some also had a blood problem called anemia. This can make people feel tired or weak. This could have been caused by P. vivax. Researchers want to know how P. vivax infects these children, and if it affe...

Intermittent Pneumatic Compression in Surgical Patients at Extremely-high Risk for Venous Thromboembolism

The aim of the study is to evaluate efficacy and safety of VTE prophylaxis by the combination of graduated compression stockings (GCS), standard doses of low-molecular-weight heparins (LMWH) and sequential compression device (SCD) in the mixed group of surgical patients at high and extremely high risk for venous thromboembolism.

Post Market Clinical Follow-Up Study- EVOLUTION® Revision CCK

Sponsor is conducting this post market clinical follow-up (PMCF) study to evaluate the safety and efficacy of its EVOLUTION® Revision CCK Tibia and EVOLUTION® Revision CCK Femur with EVOLUTION® CCK Tibial inserts. These type of studies are required by regulatory authorities for all devices that have been approved in Europe (EU) to evaluate the medium and long term clinical evidence. This study has been designed in accordance with MEDDEV2.12/2 rev 2 (European Medical Device V...

A Randomized, Placebo-controlled, Double-blind Pilot Study of Single-dose Humanized Anti-IL5 Antibody (Reslizumab) for the Reduction of Eosinophilia Following Diethylcarbamazine Treatment of Loa Loa Infection

Background: - Loa loa is a parasitic worm that infects people in West and Central Africa and is spread by the bite of a deerfly. Adult worms (macrofilariae) live under the skin and cause symptoms such as swellings, itching, and hives. Smaller worms (microfilariae) are found in the bloodstream. Diethylcarbamazine (DEC), the recommended medication for Loa loa infection, can produce very serious side effects, especially in people with high number...

Long-term Evolution of Patients Suffering From Lumbar Canal Stenosis and Supported by Minimally Invasive Surgery: SUIVISTENO

describe the functional evolution of patients at more than 10 years post intervention. describe the evolution of pain, satisfaction, quality of life of patients to more than 5 years pot intervention.

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