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Additionally, axial DTI scans using PSF-EPI were also evaluated quantitatively, and the measured DTI metrics are similar to those obtained from the zonal oblique multi-slice EPI (ZOOM-EPI) method and reported values. The high anatomical consistency, practical scan time and quantitative reliability indicate PSF-EPI's clinical potential for CSC diffusion imaging.Engineered immune cell therapy is revolutionising the field of cancer therapeutics. click here US Food and Drug Administration (FDA) approval of two chimeric antigen receptor (CAR)-T cell products for the treatment of haematological malignancies paved the way for individualised cancer treatment. However, multiple genetic edits will be required to improve the efficacy of CAR-T cell therapies if they are to treat refractory malignancies successfully, particularly solid tumours. Off-target effects of CRISPR-Cas9-mediated multiplex editing are likely to hinder its safety and application in the clinic. Novel base editing technologies offer a promising and safer alternative for simultaneous editing that could enhance allogeneic engineered immunotherapies for targeting solid tumours and other complex human diseases.Lumbar spinal stenosis (LSS) causing neurogenic claudication (NC) is increasingly common with an aging population and can be associated with significant symptoms and functional limitations. We developed this guideline to present the evidence and provide clinical recommendations on nonsurgical management of patients with LSS causing NC. Using the GRADE approach, a multidisciplinary guidelines panel based recommendations on evidence from a systematic review of randomized controlled trials and systematic reviews published through June 2019, or expert consensus. The literature monitored up to October 2020. Clinical outcomes evaluated included pain, disability, quality of life, and walking capacity. The target audience for this guideline includes all clinicians, and the target patient population includes adults with LSS (congenital and/or acquired, lateral recess or central canal, with or without low back pain, with or without spondylolisthesis) causing NC. The guidelines panel developed 6 recommendations based ongainst the use of the following pharmacological therapies nonsteroidal anti-inflammatory drugs, methylcobalamin, calcitonin, paracetamol, opioids, muscle relaxants, pregabalin (consensus-based), gabapentin (very low-quality), and epidural steroidal injections (high-quality evidence). PERSPECTIVE This guideline, on the basis of a systematic review of the evidence on the nonsurgical management of lumbar spine stenosis, provides recommendations developed by a multidisciplinary expert panel. Safe and effective non-surgical management of lumbar spine stenosis should be on the basis of a plan of care tailored to the individual and the type of treatment involved, and multimodal care is recommended in most situations.The ICH S7B guideline describes the requirement to conduct an in vitro IKr (hERG) and in vivo QTc assay for human risk assessment of new drug products, but the guidance is devoid of recommendations on study execution or quality. In the absence of standard practice, multiple study designs and experimental approaches have been utilized, especially with the nonclinical QTc assay. Since 2009, our approach to the in vivo QTc assay has been consistent for small molecules and yields reproducible and sensitive levels for QTc signal detection. Our database and experience indicate that nonrodent telemetry studies can achieve high sensitivity and a calculated metric of study power can be used to indicate study quality. Using a retrospective statistical power analysis of multiple studies (n = 14 dog; n = 6 NHP), the detection sensitivity for a specific study design (N = 8; double Latin square cross-over) was determined. The output of the power analysis is the minimal detectable effect at 80% power and a 95% probability level. The design provided an average sensitivity to detect a 4.7 (2.0%) and 6.5 (1.9%) msec QTcI change in dog and NHP, respectively. These findings suggest that this experimental approach has a consistent and reproducible sensitivity to enable a robust QTcI risk evaluation and can be used confidently to support an integrated nonclinical-clinical pro-arrhythmia risk assessment. The inclusion of power analysis (i.e., QTc sensitivity) data in a regulatory submission provides key information to critical stakeholders about the quality of the in vivo QTc assessment and its value for human safety testing.
To study the safety, efficacy, and long-term outcomes of percutaneous pancreatic duct drainage (PPDD) for treating pancreatic duct (PD) obstruction.
This prospective observational cohort study included 73 patients with PD obstruction between December 2010 and June 2020. Patients underwent PPDD under ultrasound and fluoroscopy guidance, computed tomography (CT) and fluoroscopy guidance, or CT guidance only. They were categorized into 2 groups nonmalignant (26 patients with PD obstruction due to acute and chronic pancreatitis or postoperative stricture) and malignant (47 patients with pancreatic head and ampullary tumors).
The overall technical success rate was 98.6% (72/73). No major complications were encountered; however, severe weakness, lack of appetite, and tachycardia were observed in 4.1% (3/73) of patients, managed with intravenous resuscitation. Multivariate analysis demonstrated that diagnosis type (pancreatic head tumor P= .049; odds ratio= 1.95 [1.11-2.25], and chronic pancreatitis P= .048; odds ratio= 6.25 [1.74-22.22]) was associated with mortality. The median survival time was 16.3 months. Moreover, 15.1% (11/73) of the patients were alive 4 years after the PPDD procedure, and the mean overall survival time of nonmalignant and malignant patients was 35.1 and 21.4 months, respectively.
Image-guided PPDD appears to be feasible and safe and provides a valuable therapeutic option for managing patients with PD obstruction.
Image-guided PPDD appears to be feasible and safe and provides a valuable therapeutic option for managing patients with PD obstruction.
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