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Filter by:Allogeneic stem cell transplantation (SCT) is the only potentially curative therapy for patients with myelodysplastic syndrome (MDS) and acute myeloblastic leukemia (AML). Relapse remains a leading cause for treatment failure after hematopoietic cell transplantation (HCT) in patients，so that there is the need to continue to look for alternative therapies. Decitabine, is known to inhibit DNA methyltransferase which results in DNA hypomethylation and expression of silenced genes including those involved in apoptosis. The approval of decitabine for the treatment of MDS and AML has provided an alternative strategy to inhibit disease progression in transplant-eligible patients. To assess the effect of pretransplant decitabine treatment on post transplant outcomes, we recently reviewed our institutional experience with MDS and AML patients.
This study is conducted to investigate if vitamin E status in healthy individuals and individuals with metabolic syndrome can be improved by dairy fat. The investigators hypothesize that full-fat dairy will substantially increase the bioavailability of alpha-tocopherol, a form of vitamin E. The results of this study will contribute to the application of dairy fat as a simple and effective strategy for improving vitamin E status, which is partly due to poor vitamin E intake. By completing this study, the investigators anticipate developing new dietary recommendations to achieve adequate vitamin E status through the regular consumption of dairy fat paired with foods containing vitamin E.
The purpose of this study is to explore if certain commensals within the gut microbiota (the collection of all microbes that live inside the gut) correlate with autoantibodies in the autoimmune clotting disorder called antiphospholipid syndrome. The study hypothesis is that particular commensals induce the autoantibodies (immune molecules that bind to self structures) and thus correlate with the level of immune cells and antibodies that are self-reactive. Participants are patients with antiphospholipid syndrome and individuals who have tested positive on a prior blood test for anti-beta2-glycoprotein I antibodies or those that have tested negative for antiphospholipid antibodies in their blood, but had a clotting event or a health problem that puts them at risk to form blood clots.
Little is known regarding the association of individual components of the metabolic syndrome (MBS) and prothrombotic, inflammatory and preclinical cardiac structural and functional markers in women with this syndrome. Less is known about adequate treatment as the pathological mechanism of this syndrome is not well understood. The purpose of this study is two fold; 1. To determine basic differences in biochemical and cardiovascular structural markers in women with and those without MBS and their association with the individual components of MBS. 2. To determine the impact of atorvastatin to lower the risk factors of Metabolic Syndrome. Atorvastatin is one of the most effective drugs approved by the United States Food and Drug Administration (FDA) for the treatment of high cholesterol. It belongs to a class of drugs called statins and its role in primary prevention is still unclear. Thus this population seems to be an ideal group that may benefit from this intervention.
The purpose of the study is to determine whether patients meet criteria for Postural Tachycardia Syndrome (or not) and have reduced blood volume (or not). Both of these are important screening elements to Aim 3 of a National Institutes of Health Grant. The purposes of Aim 3 are to determine 1. whether a high dietary sodium level appropriately expands plasma volume in Postural Orthostatic Tachycardia, 2. whether plasma renin activity and aldosterone are modified appropriately by changes in dietary sodium in Postural Tachycardia Syndrome and 3. whether patients with Postural Tachycardia Syndrome have improvements in their orthostatic tachycardia and symptoms as a result of a high dietary sodium level.
It has been reported in various epidemiological studies that patients with moderate-to-severe plaque psoriasis, with or without associated psoriatic arthritis, have an increased frequency of cardiovascular risk factors, such as hypertension, obesity, type-2 diabetes mellitus (T2DM, and metabolic syndrome (MetS). The presence of endothelial dysfunction in early stages, especially in moderate-to-severe plaque psoriasis forms, could explain the higher prevalence of cardiovascular disease and mortality observed in this population. Existing evidence showing improvement in psoriasis after correcting some factors, such as obesity or hypercholesterolemia, and the reduction of certain surrogate markers of cardiovascular risk with different modalities of psoriasis treatment suggest a biological interaction between the two diseases beyond mere epidemiological association. Recently published results support this hypothesis and suggest that the link between psoriasis and cardiovascular disease could be the existence of an inflammatory state in different organs, including skin, joints, adipose and hepatic tissue, and vascular endothelium (16). Patients with MetS have an increased risk of developing T2DM and cardiovascular disease. This syndrome is characterized by the association of an adipose tissue inflammatory state and diminished sensitivity to insulin. In recent years, a new mechanism participating in the development of MetS has been added: the Wnt signaling pathway. Polymorphisms in genes of the Wnt signaling pathway have been associated with metabolic abnormalities that predispose to cardiovascular disease, the development of moderate-to-severe plaque psoriasis, with or without associated psoriatic arthritis, and response to treatment with anti-TNF-alpha. This study aims to describe the cardiovascular risk factors of a Spanish population of patients with moderate-to-severe plaque psoriasis, with or without associated psoriatic arthritis,treated with anti-TNF under routine clinical practice conditions. Possible differences in efficacy relative to the presence or absence of criteria of metabolic syndrome will be analyzed. Similarly, we will explore the role of markers of inflammatory activity and genetic polymorphisms in the Wnt pathway in predicting response to treatment during the first year.
The purpose of this study is to collect data to help understand why some women develop Polycystic Ovary Syndrome (PCOS) associated with decreased lower-body fat.
Patients with some forms of acute myeloid leukemia (AML) and multiple myeloma (MM) are not cured with conventional therapy and new approaches are needed. For the last 15 years we have investigated the potential of using a patient's own T cells (a type of white blood cell [WBC]) to eradicate the tumor. We have demonstrated the feasibility of this approach in cell culture and animal models of AML and MM. Over the last 5 years we have been preparing to treat patients as part of a Phase I (first in human) clinical trial. The trial treatment involves collecting the patient's own WBCs from the blood by a standard well established and safe process called apheresis. The cells are then cultured in a specialized laboratory (under Good Manufacturing Practice conditions, similar to standards under which pharmaceuticals are produced) over 12 days to convert the cells to specialized tumor-attacking T cells. Early in that culture process the cells are exposed to a virus (that is modified so that it cannot infect or replicate outside the special culture conditions) that contains a special gene. Via the virus, this gene inserts into the patient's T cells in culture and gets incorporated into the T cell's genetic machinery. As the T cells replicate, the new gene produces a protein receptor that becomes part of the patient's T cells. This protein receptor on the T cells has the capacity to specifically recognize and bind to a protein on the leukemia or myeloma cells called the "Lewis Y" antigen. After the modified T cells are infused into the patient, they home into the bone marrow (this tracking is monitored by special radiological techniques) where the new protein receptor on the T cell surface can recognize and bind to the cancer cells (which express Lewis Y). Once bound onto the cancer cells, the T cells get activated and subsequently replicate and kill the cancer cells. The novelty of this approach is that the T-cells will only kill cells that have the Lewis Y on their surface - the cancer cells. Moreover, because there are few normal cells in a person's body that carry Lewis Y, this treatment is likely to only have minor side effects. This gene therapy trial is unique and although the primary purpose is to test the safety of this approach, patients will be monitored closely for anti-tumor responses. As the trial progresses, the dose of T cells infused will increase, in the hope that this will result in a better and stronger immune response to the leukemia or myeloma.
Chronic pelvic pain (CPP) can affect both sexes and lasts at least for 3 months. CPP in women could be due to endometrioses, ovarian cyst, colitis, etc, making the correct diagnosis important (1-3). The most prevalent reason for CPP in men is non-bacterial chronic prostatitis and in many cases they are considered equivalent to each other (4). Chronic non-bacterial prostatitis is associated with pain in pelvic region and could be associated with other symptoms such as dysuria, myalgia, arthralgia, chronic fatigue, burning sensation in the urethra, abdominal, urine frequency, and pain after ejaculation (4-6). Chronic prostatitis / chronic pelvic pain syndrome (CP/CPPS) is devided into two groups: III A Type (inflammatory) and III B (Non-inflammatory). The difference between the two groups is the presence of leukocytes in prostatic secretions after prostate massage, urine and semen (7,8). In general population, the prevalence of chronic pelvic pain syndrome is about 0.5 percent because many patients do not consider their symptoms as disease, while 6.3% of people may show symptoms (9-11). One of the most important challenges in the treatment of chronic prostatitis / chronic pelvic pain syndrome, is that its etiology is obscure and it is known as a multi-factorial syndrome. The proposed explanations are infection, psychological reasons, autoimmunity and neuro-myospasm. Hypotheses about endothelial cells defect and cardio vascular disease have also been proposed, upon which the new therapies have been based. In duplex mapping study of prostatic vessels in two groups of healthy and chronic non-bacterial prostatitis people, it was shown that there was a significant reduction in systolic flow in prostatic arteries in people who had chronic non-bacterial prostatitis, and there was a direct association between pain and blood flow intensity, suggesting chronic ischemia as a possible cause for pain (13). Pain in prostate without significant infection is the hallmark of chronic prostatitis / chronic pelvic pain syndrome (5). In physical exam, prostate or pelvic tenderness may be observed in half of the patients. The diagnosis of chronic prostatitis / chronic pelvic pain syndrome is challenging. No specific lab test exists for its detection. Prostate specific antigen (PSA) level, which is typically increased in acute infection, is usually normal in this condition. The diagnostic approach in these patients is based on ruling out other curable causes such as benign prostatic hyperplasia or bladder cancer (14-20). NIH Chronic Prostatitis Symptom Index (NIH-CPSI) is used to evaluate symptom severity and response to treatment in these patients. A reduction of 4-6 points in the score is considered significant response to the treatment (21). There is no first line treatment for patients of chronic pelvic pain syndrome. The use of anti-bacterial, alpha-blockers or anti-inflammatory drug is logical. However, if the patient does not respond, further administration is not helpful. In non-responders, combination of drugs or other non-medical methods should be considered (23-26). As discussed earlier, blood flow reduction, ischemia and disorders in endothelium of vessels may cause pain in these patients and methods to improve blow flow may help(13,27). One of these methods is extracorporeal shockwave therapy (ESWT) which is typically used for tendonitis, acceleration in bone reunion and wound healing, improvement in muscle movements through a reduction in passive muscular tonus, increasing muscular range of motion after cerebrovascular accident (CVA), treatment of Peyronie's disease and erectile dysfunction (28-30). Shoskes et al compared 24 chronic prostatitis patients with 11 controls in terms of vascular stiffness, indexes of increased blood flow, vasodilation and reactive vascular hyperemia, using Endo-PAT ® 2000-Machine. They showed that endothelial disorder and stiffness along with the risk of cardiovascular disorders are increased in CP/CPPS (31). The use of ESWT for the treatment of CP/CPPS has been evaluated in a few studies. In a double-blind randomized control trial, Zimmermann et al placed 60 patients with chronic pelvic pain syndrome from chronic non-bacterial prostatitis into two groups and treated one of them in 4 sessions with a frequency of 3000 per session. The treatment group showed superior results in terms of symptom improvement(32). In another study, Zimmermann et al followed 34 patients with chronic pelvic pain syndrome, after one, four and twelve weeks post ESWT in terms of quality of life and pain reduction. They showed that this method is useful and without any complications (33). Considering the promising results of the cited articles along with the paucity of data in this regard we decided to perform a double-blind sham-controlled study to evaluate the effectiveness of ESWT in CP/CPPS.
1. Objective : To test the safety of 6 month-duration of dual antiplatelet therapy (DAPT) compared to conventional 12-month-or-longer duration after second-generation drug-eluting stent (DES) implantation in patients with acute coronary syndrome (ACS). 2. Hypothesis : A 6-month duration of DAPT is non-inferior to a conventional 12-month-or longer duration of DAPT at preventing the occurrence of major adverse cardiac and cerebrovascular events (MACCE) at 18-month after second-generation DES implantation in patients with ACS.