Clinical Trials About "Rats trail behind shrews monkeys humans visual problem" RSS

00:37 EDT 21st August 2018 | BioPortfolio

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Showing "Rats trail behind shrews monkeys humans visual problem" Clinical Trials 1–25 of 5,600+

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The Effectiveness of Human Antibodies in Influencing an AIDS-Like Disease in Monkeys

The purpose of this study is to see if an investigational vaccine can make antibodies (proteins found in blood) in humans that will influence the course of an AIDS-like disease in monkeys. Hopefully, the results of this study can be applied to humans. AIDS, which is caused by infection with HIV, is associated with many deaths and occurrences of disease. Although recent advances have been made in anti-HIV therapy for AIDS, there is no cure for HIV infection or AIDS, and drug th...


Simian Foamy Virus Transmission to Humans

About three quarters of the viral agents that have emerged recently in humans are considered to originate from other animals. These viruses have often evolved and spread into the human population through various mechanisms after the initial contact that resulted in interspecies transmission. However, knowledge of the initial stages of the emergence of viruses and associated diseases is still limited in many cases. Microbiological monitoring in populations at risk of transmissio...

Novel Cross-Species Neurophysiological Assays of Reward and Cognitive Domains

The overarching goal of this multi-disciplinary research program is to develop and optimize new cross-species translational assessments of reward and cognition that will not only be assessed in parallel in humans and rats, but also produce neurophysiological and behavioral metrics that can be objectively compared across species. The research will build on prior studies by further developing and optimizing (in Phase 1), then validating via pharmacological challenge (in Phase 2),...

Effect of Levodopa on Human Multifocal Electroretinogram

It is known that dopamine is a functional neuromodulator at several levels of the visual system. Dopamine seems to be involved in the organization of the ganglion cell and the bipolar cell receptive fields and modulation of physiological activity of photoreceptors. There is evidence for the functional significance of dopaminergic modulation of visual sensitivity in humans which confirms the hypothesis that dopamine plays an important role in retinal light adaptation as well as...

Meat-based Versus Pesco-vegetarian Diet and Colorectal Cancer

Colorectal cancer (CRC) is strongly affected by diet, with red and processed meat increasing risk. To understand the role of microbiome in this phenomenon and to identify specific microbiome/metabolomics profiles associated with CRC risk, will be studied: 1) healthy volunteers fed for 3 months with: a high-CRC risk diet (meat-based MBD), a normalized CRC risk diet (MBD plus alpha-tocopherol, MBD-T), a low-CRC risk diet (pesco-vegetarian, PVD). At the beginning and at the end of...

Study of Tolerance, Biodistribution and Dosimetry of Fucoidan Radiolabeled by Technetium-99m

The development of an innovative imaging agent capable of non-invasively detecting vulnerable plaques is a major objective of research in cardiovascular pathology. Such a tool would allow for better identification of patients at risk of acute events. We showed that 99mTechnetium (99mTc)-labeled fucoidan was able to target P-selectine expressed by activated platelets in vitro in humans and in vivo in a model of abdominal aortic aorta thrombus and endocarditic vegetations in rats...

Visual Activity Evoked by Infrared in Humans After Dark Adaptation

This pilot study will evaluate the visual response to infrared (IR) in humans after dark adaptation. The investigators plan to determine which wavelength and intensity the human eye is most sensitive too, using a broad spectrum light source and wavelength-specific bandpass filters. The investigators will then evaluate the electrophysiologic response in healthy humans to IR, followed by studies in those with specific retinal diseases. The long-term goal of this research is to b...

Safety, Immunogenicity, and Impact of MVA85A, on the Immunogenicity of the EPI Vaccines

This study is preliminary to proving that this vaccine could protect against tuberculosis in humans. Although there is no proven data to show that infants will benefit directly from participation in this study by being protected against TB, MVA85A protection of mice, guinea pigs and monkeys against tuberculosis is encouraging. It is hoped that the information gained from this study will contribute to the development of a safe and effective TB vaccine for HIV negative and positi...

Study Comparing the Safety of BG9588 (Anti-CD40L Antibody) Against Standard Treatment in Kidney Transplantation

The most common problem following a kidney transplant is the development of acute or chronic rejection. Rejection is the immunologic reaction in which the body refuses to accept the transplanted organ. The body's immune system will make destructive antibodies that will attempt to attack the transplanted organ. In order to prevent organ rejection, all patients receiving an allograft (a graft transplanted between genetically non-identical individuals of the same species) must ...

Drug Use and Ultra-endurance Race

Hypothesis: To verify whether the use of drugs, in particular performance-enhancing drugs, is prevalent amongst participants in a very long distance mountain trail. Primary objective : To qualify and quantify drug use amongst participants in a very long distance mountain trail, by targeting the molecules most likely used by the runners.

Canadian Study of Trandolapril on Blood Pressure in Hypertensive Patients (TRAIL)

The TRAIL study was conducted to examine the effects of escalating doses of an ACE inhibitor, trandolapril, on lowering blood pressure in Stage 1-2 hypertensive patients.

Visual Feedback of Tongue by Ultrasound Echography for Speech Trouble Rehabilitation

Speech is a privileged means of communication for humans: its trouble can thus prove being extremely handicapping. Standard speech therapy is limited in some cases by the lack of sensory feedback available to the patient (hearing, surgery, neural damage, etc.). The present study aims at quantify the contribution of the tongue articulatory visual feedback offered by ultrasound echography to speech trouble rehabilitation. Two complementary populations will be studied : 30 adult...

Visual Discomfort and Reading

Reading can be an uncomfortable and difficult task for some people. Symptoms include unpleasant somatic and perceptual effects, such as eye-strain, headache, and blurred text, despite normal visual acuity. This condition has been called Visual Discomfort, but little is known about the symptoms and frequency of reading problems associated with this disorder. Several studies have proposed that Visual Discomfort is caused by increased noise in the visual system due to spreading co...

The Clinical Application of Artificial Intelligent(AI) Visual Inspection System

In this study, the investigators provide participants from ophthalmic clinic the AI visual inspection system and EDTRS in the purpose of seeking out a better way of visual inspection with high efficiency and accuracy, and report a prospective, randomized controlled study aiming at comparison of AI visual inspection system and EDTRS for visual inspection.

Regulation of Optic Nerve Head Blood Flow During Combined Changes in Intraocular Pressure and Arterial Blood Pressure

Autoregulation is the ability of a vascular bed to maintain blood flow despite changes in perfusion pressure. The existence of an effective autoregulation in the optic nerve head (ONH) circulation has been shown in animals and humans. Moderate elevation of intraocular pressure (IOP) caused only slight effect on ONH blood flow in monkeys, cats and rabbits. In humans, during an artificial IOP rise using a suction cup method the ONH blood flow maintains almost constant until IOP r...

Online Interventions for Gamblers With and Without Co-occurring Problem Drinking

Many problem gamblers are also problem drinkers,with lifetime prevalence in nationally representative samples ranging from 45% to 73%. Heavy drinking often occurs while problem gamblers are engaging in gambling activities, resulting in increased risky gambling behaviour. Further, co-occurring problem drinking negatively impacts on the treatment outcomes of problem gamblers. Thus, targeting problem drinking among problem gamblers may have the dual benefits of reducing both the p...

A Study of APO2L/TRAIL in Combination With Rituximab in Subjects With Follicular and Other Low Grade, CD20+, Non-Hodgkin's Lymphomas

This Phase Ib/II, open-label, multicenter trial is designed to evaluate the safety, pharmacokinetics, and efficacy of Apo2L/TRAIL when combined with rituximab in subjects with follicular, CD20+, B-cell NHL that has progressed following a response of ≥ 6 months duration to a prior rituximab-containing therapy. The multicenter, international, randomized Phase II part of this study will commence only after the safety and available pharmacokinetic data from the Phase Ib part of t...

Development of Problem-solving Skills Among Female Adolescents by Application of Social Cognitive Theory in Parent-Child Relationship

Adolescence is the most important period of growth for humans. The conflict and disagreement which exists within family relationships will affect the children behaviors. Family relationships are the cause of many problems in adolescents, to develop a training program on problem-solving skills for adolescent girls to change their relationship with their parents.

Enoxaparin and/or Minocycline in Acute Stroke

The purpose of this study is to investigate whether enoxaparin, minocycline, or both medications in combination may help in recovery from acute stroke. Enoxaparin (brand name Lovenox®) is a medication approved for use in humans to prevent and to treat blood clots in deep veins in certain specific medical situations. Minocycline (brand name Minocin®) is a tetracycline antibiotic approved to treat a number of bacterial infections in humans. The investigators are studying the...

Study of Visual-spatial Attention by Eye Tracking as a Function of Central or Peripheral Visual Impairment

The objective of this pilot work is to determine the role of central and peripheral visions in explicit attention processes (saccade planning) in the case of visual impairment.

Preliminary Human Trial of NPI-028

This research will determine whether the Chinese herbal medicine (NPI-028) can make a significant contribution to the management of withdrawal and to follow-up treatment aimed at preventing or managing relapse in both women and men alcoholics. The herbal preparation has been used historically in the treatment of alcohol intoxication and is still prescribed in China and Southeast Asia. Efficacy has been documented but awaits the application of current research methods to establi...

Visual Field Defect Estimation Using Sequentially Optimized Reconstruction Strategy on Healthy and Glaucoma Subjects

Perimetry is a well-established method that is used to measure the visual field functions of humans. Commercially available products, such as the OCTOPUS 900 (Haag-Streit AG, Koeniz, Switzerland), are commonly used for assessing the visual field. Such devices are of critical value for patients suffering of glaucoma and neuro-ophthalmic conditions. The operating principle is to sequentially present light stimuli of different intensity at different locations within the visual fie...

Dyslexics' Visual Attention Field

dyslexia is often considered like a phonological deficit but some researches show that a visual attention (V-A) deficit can occur in dyslexia. The investigator want to show that some dyslexics have a reduced V-A field in visual search when the investigator use separable feature (letter-like). If the investigator demonstrate that, he will show that V-A deficit can be transpose to an ability acquired before reading, the visual search. Therefore, the V-A deficit can't be a ...

Vedolizumab Treatment in HIV-Infected Subjects Without Previous Antiretroviral Therapy

HIV cannot be eliminated and remains in the body despite the treatment that is used for HIV-infection called antiretroviral treatment (ART). Individuals undergoing ART interruption rapidly experience virus rebound in the blood. The current alternative therapeutic strategies to antiretroviral treatment have the aim to achieve the elimination of the virus in blood in the absence of ART. New drugs associated to ART that allow the elimination of the virus in the blood after ART wit...

Study of TRM-1 (TRAIL-R1 Monoclonal Antibody) in Subjects With Relapsed or Refractory Non-Hodgkin's Lymphoma (NHL)

The purpose of this study is to evaluate the safety, efficacy and exposure to TRM-1 in subjects with relapsed or refractory Non-Hodgkin's Lymphoma (NHL).

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