There are about 9745 clinical studies being (or have been) conducted in Israel. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
Headache during fasting is a known entity in the scientific literature. The prevalence of such a headache is high and in a study conducted in Israel was found in 60% of people with a previous predilection for headache. A prior study showed a significant decrease in the incidence of fasting headache using rofecoxib, but the drug has been taken off the market. The goal of this project is to evaluate the efficacy of etoricoxib as treatment taken before the fast- a COX-2 inhibitor with a relatively long half life to prevent fasting induced headache. The study will be a prospective double blind placebo controlled trial using adult volunteers with a history of a fasting headache who will be abstaining from food and drink on Yom Kippur. The study hypothesis is that treatment with etoricoxib prior to a 25 hour fast will decrease the incidence of fasting headache.
It has been proven in in-vitro studies that dates decrease the oxidative stress in serum. There have been no in-vivo studies to this date. The current study aims to test whether dates consumption by healthy adults decreases serum oxidative stress and improves serum PON1 activity and serum lipid profile.
Background Sleep disturbances are prevalent in hospitalized adult patients manifested as reduced sleep time and sleep efficiency as well as increased awakenings. Insomnia is the most frequent sleep disturbance. The effect of the change in sleep patterns in children prior to and after an elective surgery has not been evaluated objectively. Sleep in hospital may influence biological processes related to circadian rhythm. Melatonin is a hormone secreted by the pineal gland in a diurnal rhythm regulated by light- light suppresses melatonin secretion, while darkness enhances it. Melatonin has both chrono-biotic and sleep promoting properties. Exogenous administration of melatonin shortens sleep latency, increases sleep efficiency and total sleep time. Melatonin also improves disrupted circadian rhythm. Melatonin promotes sleep in a similar way to the natural sleep process, and maintains normal sleep architecture. Melatonin has a positive effect on children with sleep disturbances and is routinely administrated in pediatric sleep centers around the world for insomnia and a variety of sleep disorders. Side effects of melatonin are rare and scarce. Circadin is a slow released formulation of melatonin, which mimics night time secretion of natural melatonin. Children with sleep disorders who were treated with controlled release melatonin, demonstrated improvement in sleep latency and total sleep time. It is reasonable to assume that hospitalized children have disturbed sleep patterns prior to and following elective surgery. We hypothesize that melatonin will improve sleep patterns prior to and following surgery, by reducing sleep latency and extending total sleep time. We also hypothesize that this improvement will have positive impact on anesthetic stress measures and on recovery. The purposes of the study are: 1. To characterize sleep patterns in children undergoing surgery on the admission night prior to surgery; 2. To evaluate the effect of melatonin on sleep parameters on the night prior to surgery in children; 3. To evaluate the effect of melatonin on physiologic stress parameters during anesthesia and surgery in children; 4. To evaluate the effect of melatonin on sleep parameters of children postoperatively; 5. To evaluate the effect of melatonin on postoperative outcome measures in children. Patients, Methods. Ninety children (aged 4-18 years) will be evaluated. Sleep disorders will be screened by a pediatric sleep questionnaire. Sleep will be assessed by sleep logs and actigraphy for sleep onset time, sleep latency, total sleep time, total wake time, number and length of awakenings, sleep efficiency, sleep fragmentation index and sleep mean activity score. Recovery measures will include: length of hospitalization, infection rate, body temperature, cortisol levels, cooperation with medical staff. Study plan. The research will comprise of 5 consecutive steps. Step 1 will include the week prior to surgery and include sleep evaluation to all participants by sleep log and actigraphy. Step 2 is the night prior to surgery and will include sleep log and actigraphy. 30 children will receive melatonin (Circadin) 2mg, 30 children will receive placebo and 30 children will constitute the control group. Step 3 will be conducted during anesthesia and surgery where stress variables and need for anesthesia will be recorded. Step 4 will take place during post-operative hospitalization and will include actigraphy and sleep logs. Step 5 will take place at home two weeks after discharge and will include actigraphy and sleep logs.
Now it is commonly accepted that MSC produce an immune-tolerant environment in different settings. It has been shown (mainly for BM-MSC) that MSC can down-regulate T cells activation. This characteristic of BM derived MSC already has clinical implications and shows their potent effectiveness both in prophylaxis and treatment of resistant GvHD. Ongoing clinical trials of use bone marrow MSC for treatment of steroid resistant GvHD are successfully run on and some bone marrow donor registries included BM-MSC as a material for donation. According to our preclinical studies MSC from cells from marrow, placenta, umbilical cord vessels demonstrate similar pronounced immunosuppressive effect both with autologous and allogeneic lymphocytes. Our preliminary clinical experience shows that BM-MSC is an effective tool for treatment of steroid resistant GVHD. Present study aimed to demonstrate if human UC-MSC has in vivo immunosuppressive effect and can be used for GVHD treatment
Most patients with diabetes mellitus have to measure their blood glucose levels quite often, in order to maintain a proper glycemic control. Current methods of self-monitoring of blood glucose are invasive, painful, uncomfortable, and only allow occasional, from time-to-time, measurements. Real-time continuous monitoring would provide a helpful tool for improvement of glycemic control, thus decreasing the incidence of hypoglycemia and improving glucose control. The Mellitor sensor is a new concept of continue glucose monitoring device. The Mellitor device is an implantable continuous glucose monitoring sensor that is intended for detection episodes of hyperglycemia and hypoglycemia in diabetic patients, and facilitates both acute and long-term therapy adjustments. This study was design in order to evaluate glucose measurement capabilities by the Mellitor sensor that is being developed. Transudate liquid samples, withdrawn in a clinical procedure and normally immediately disposed, will be used for glucose measurement by the Mellitor sensor. Study Design This study is an ex-vivo comparative study. 20 patients will be recruited for the study, according to patients' inflow and meeting eligibility criteria. Study Goal Study objective is to evaluate the feasibility of the Mellitor Sensor technology for glucose level measurement. Study Endpoint Mellitor technology feasibility will be established by comparing Mellitor glucose measurements results, based on transudate/exudates liquid withdrawal for other medical reasons, to "gold standard, Yellow Springs" glucose analyzer, or a comparable, calibrated and approved device using the same transudate/exudates liquid. Interdevice variability should be within 10%.
The purpose of this study is to determine whether chemotherapy induces regression in atherosclerotic plaques in oncologic patients already undergoing PET FDG as part of their routine assessment.We will use PET FDG to assess whether the inflammation in atherosclerotic plaques is affected by chemotherapy and anti angiogenic therapy.
Background: Primary ciliary dyskinesia (PCD) is a rare genetic disease characterised by recurrent respiratory infections and subfertility due to dysfunction of cilia (brushes) of the lining cells. Undiagnosed and untreated it can result in an irreversible crippling chronic lung disease. The diagnosis of PCD is a difficult one and involves the complex assessment of ciliary structure and function. Thus, PCD is under diagnosed and appropriate preventative and symptomatic treatment may be denied in many patients. In addition, the gene responsible for PCD is at present unknown, thus preventing pre-natal diagnosis and genetic counseling. Working hypothesis and aims: Recently, it has become apparent that the evaluation of nasally expired nitric oxide (NO) constitutes a simple and non-invasive diagnostic method, which discriminates between PCD patients, PCD carriers and healthy controls at high rate of specificity and sensitivity. Testing is simple and last approximately one minute. We have recently identified a unique isolated Druze population with high prevalence of PCD. The high frequency of disease places this closed community at a high risk of undiagnosed PCD. The aim of this project is to use nasal NO measurement as a screening tool to identify possible undiagnosed cases of PCD and PCD carriers in this high risk Druze population.
since glaucoma is considered an optic neuropathy, new treatments for glaucoma are being continuously investigated, including neuroprotection. Previous studies implied that phenytoin, a potent anti-convulsive drug, has a neuroprotective role, and Na+ channels blockage was suggested as a possible mechanism. This study predicts that glaucoma patients taking Phenytoin will have a less advanced glaucoma as compared to patients not taking the drug. Glaucoma severity will be determined by visual acuity, visual fields, optic disc cupping and nerve fiber layer thickness
The investigators hypothesize that mathematical algorithm can identify freezing episodes based on data obtained from accelerometer.
Evaluation of specificity and sensitivity of Seaforia- an vitro diagnostic system for evaluating semen quality.