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https://www.readbyqxmd.com/read/29458172/modelling-human-myoblasts-survival-upon-xenotransplantation-into-immunodeficient-mouse-muscle
#1
Christophe Praud, Karine Vauchez, Pascal Zongo, Jean-Thomas Vilquin
Cell transplantation has been challenged in several clinical indications of genetic or acquired muscular diseases, but therapeutic success were mitigated. To understand and improve the yields of tissue regeneration, we aimed at modelling the fate of CD56-positive human myoblasts after transplantation. Using immunodeficient severe combined immunodeficiency (SCID) mice as recipients, we assessed the survival, integration and satellite cell niche occupancy of human myoblasts by a triple immunohistochemical labelling of laminin, dystrophin and human lamin A/C...
February 16, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29458132/therapeutic-drug-monitoring-in-treatment-experienced-hiv-infected-patients-receiving-darunavir-based-salvage-regimens-a-case-series
#2
Sébastien Landry, Chi-Nan Chen, Nimish Patel, Alice Tseng, Richard G Lalonde, Denis Thibeault, Steven Sanche, Nancy L Sheehan
Therapeutic drug monitoring (TDM) constitutes a compelling approach for the optimization of antiretroviral therapy in treatment-experienced HIV-1 patients. While various inhibitory indices have been proposed to predict virologic outcome, there is a lack of consensus on the clinical value of TDM. Here, we report the comparative results of TDM in 14 HIV-1-infected patients who had previously received at least two different PI-based regimens and who initiated darunavir (DRV)-based salvage therapy. Pharmacokinetic/pharmacodynamics (PK/PD) parameters were calculated for each subject...
February 16, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29458076/bone-marrow-mesenchymal-stem-cells-bmscs-improved-functional-recovery-of-spinal-cord-injury-partly-by-promoting-axonal-regeneration
#3
REVIEW
Liya Lin, Hefeng Lin, Shi Bai, Lianshun Zheng, Xiaoming Zhang
Spinal cord injury (SCI) disrupts the spinal cord and results in the loss of sensory and motor function below the lesion site. The treatment of SCI became a challenge because the injured neurons fail to axon regenerate and repair after injury. Promoting axonal regeneration plays a key role in the treatment strategies for SCI. It would meet the goal of reconstruction the injured spinal cord and improving the functional recovery. Bone marrow mesenchymal stem cells (BMSCs) are attractive therapeutic potential cell sources for SCI, and it could rebuild the injured spinal cord through neuroprotection, neural regeneration and remyelinating...
February 16, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29458065/nosocomial-ventriculitis-caused-by-a-meticillin-and-linezolid-resistant-clone-of-staphylococcus-epidermidis-in-neurosurgical-patients
#4
Carlos Rodríguez-Lucas, Javier Fernández, José Antonio Boga, Lucia López-Amor, Lorena Forcelledo, Eva Lázaro-López, M Rosario Rodicio
BACKGROUND: Post-neurosurgical ventriculitis is mainly caused by coagulase-negative staphylococci. The rate of linezolid resistant S. epidermidis (LRSE) is increasing worldwide. AIMS: To report clinical and microbiological data from a series of ventriculitis cases caused by LRSE in a Spanish hospital between 2013 and 2016. METHODS: LRSE ventriculitis cases were retrospectively reviewed in a Spanish hospital during a four-year period. Clinical/epidemiological data of the infected patients were reviewed, the isolates involved were typed by PFGE and MLST, and the molecular basis of linezolid resistance was determined...
February 16, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29458048/4-phenylbutyric-acid-protects-against-lipopolysaccharide-induced-bone-loss-by-modulating-autophagy-in-osteoclasts
#5
Hyun-Jung Park, Ho-Jung Son, Ok-Joo Sul, Jae-Hee Suh, Hye-Seon Choi
4-Phenylbutyric acid (4-PBA) has been used clinically to treat urea cycle disorders and is known to be an inhibitor of endoplasmic reticulum (ER) stress. We hypothesized that 4-PBA attenuates inflammatory bone loss by inducing autophagy, a process that is frequently accompanied by ER stress. Micro computerized tomography analysis showed that 4-PBA attenuated LPS-induced bone loss in mice. The increased area of TRAP-positive osteoclasts (OCs) and serum level of collagen type I fragments in lipopolysaccharide (LPS)-treated mice were also decreased when 4-PBA was administered, suggesting a protective role of 4-PBA in OCs...
February 16, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29457878/genetic-determinants-of-heart-failure-facts-and-numbers
#6
EDITORIAL
Frauke S Czepluch, Bernd Wollnik, Gerd Hasenfuß
The relevance of gene mutations leading to heart diseases and hence heart failure has become evident. The risk for and the course of heart failure depends on genomic variants and mutations underlying the so-called genetic predisposition. Genetic contribution to heart failure is highly heterogenous and complex. For any patient with a likely inherited heart failure syndrome, genetic counselling is recommended and important. In the last few years, novel sequencing technologies (named next-generation sequencing - NGS) have dramatically improved the availability of molecular testing, the efficiency of genetic analyses, and moreover reduced the cost for genetic testing...
February 19, 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29457847/preconditioning-with-low-level-laser-irradiation-enhances-the-therapeutic-potential-of-human-adipose-derived-stem-cells-in-a-mouse-model-of-photoaged-skin
#7
Xuan Liao, Sheng-Hong Li, Guang-Hui Xie, Shan Xie, Li-Ling Xiao, Jian-Xing Song, Hong-Wei Liu
The present study was conducted to explore the therapeutic potential of human adipose-derived stem cells (ADSCs) irradiated with a low level laser (LLL). Cultured ADSCs were treated with 650-nm GaAlAs laser irradiation at 2, 4, and 8 J/cm2 . Cell proliferation was quantified by MTT assays, cytokine secretion was determined by enzyme-linked immunosorbent assays, and adipogenic differentiation was examined by oil red O staining. Additionally, the expression profiles of putative ADSC surface markers were analyzed by quantitative real-time PCR...
February 19, 2018: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29457843/the-tumour-stroma-ratio-in-colon-cancer-the-biological-role-and-its-prognostic-impact
#8
REVIEW
Gabi W van Pelt, Tessa P Sandberg, Hans Morreau, Hans Gelderblom, J Han J M van Krieken, Rob A E M Tollenaar, Wilma E Mesker
The tumour microenvironment consists of a complex mixture of non-neoplastic cells including fibroblasts, immune cells and endothelial cells embedded in the proteins of the extracellular matrix. The tumour microenvironment plays an active role in tumour behaviour. By interacting with cancer cells, it influences disease progression and the metastatic capacity of the tumour. Tumours with a high amount of stroma correspond to poor patient prognosis. The tumour-stroma ratio (TSR) is a strong independent prognostic tool in colon cancer and provides additional value to the current clinically used TNM classification...
February 19, 2018: Histopathology
https://www.readbyqxmd.com/read/29457796/h3b-8800-an-orally-available-small-molecule-splicing-modulator-induces-lethality-in-spliceosome-mutant-cancers
#9
Michael Seiler, Akihide Yoshimi, Rachel Darman, Betty Chan, Gregg Keaney, Michael Thomas, Anant A Agrawal, Benjamin Caleb, Alfredo Csibi, Eckley Sean, Peter Fekkes, Craig Karr, Virginia Klimek, George Lai, Linda Lee, Pavan Kumar, Stanley Chun-Wei Lee, Xiang Liu, Crystal Mackenzie, Carol Meeske, Yoshiharu Mizui, Eric Padron, Eunice Park, Ermira Pazolli, Shouyong Peng, Sudeep Prajapati, Justin Taylor, Teng Teng, John Wang, Markus Warmuth, Huilan Yao, Lihua Yu, Ping Zhu, Omar Abdel-Wahab, Peter G Smith, Silvia Buonamici
Genomic analyses of cancer have identified recurrent point mutations in the RNA splicing factor-encoding genes SF3B1, U2AF1, and SRSF2 that confer an alteration of function. Cancer cells bearing these mutations are preferentially dependent on wild-type (WT) spliceosome function, but clinically relevant means to therapeutically target the spliceosome do not currently exist. Here we describe an orally available modulator of the SF3b complex, H3B-8800, which potently and preferentially kills spliceosome-mutant epithelial and hematologic tumor cells...
February 19, 2018: Nature Medicine
https://www.readbyqxmd.com/read/29457783/cellular-senescence-in-brain-aging-and-neurodegenerative-diseases-evidence-and-perspectives
#10
Darren J Baker, Ronald C Petersen
Along with a general decline in overall health, most chronic degenerative human diseases are inherently associated with increasing age. Age-associated cognitive impairments and neurodegenerative diseases, such as Parkinson's and Alzheimer's diseases, are potentially debilitating conditions that lack viable options for treatment, resulting in a tremendous economic and societal cost. Most high-profile clinical trials for neurodegenerative diseases have led to inefficacious results, suggesting that novel approaches to treating these pathologies are needed...
February 19, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29457711/small-animal-models-for-evaluating-filovirus-countermeasures
#11
Logan Banadyga, Gary Wong, Xiangguo Qiu
The development of novel therapeutics and vaccines to treat or prevent disease caused by filoviruses, such as Ebola and Marburg viruses, depends on the availability of animal models that faithfully recapitulate clinical hallmarks of disease as it is observed in humans. In particular, small animal models (like mice and guinea pigs) are historically and frequently used for the primary evaluation of antiviral countermeasures, prior to testing in nonhuman primates, which represent the gold-standard filovirus animal model...
February 19, 2018: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29457630/combination-drug-delivery-via-multilamellar-vesicles-enables-targeting-of-tumor-cells-and-tumor-vasculature
#12
Yarong Liu, Yu Jeong Kim, Natnaree Siriwon, Jennifer A Rohrs, Zhiqiang Yu, Pin Wang
Blood vessel development is critical for the continued growth and progression of solid tumors and, therefore, makes an attractive target for improving cancer therapy. Indeed, vascular-targeted therapies have been extensively explored but they have shown minimal efficacy as monotherapies. Combretastatin A4 (CA-4) is a tubulin-binding vascular disrupting agent that selectively targets the established tumor endothelium, causing rapid vascular beak down. Despite its potent anticancer potential, the drug has dose-limiting side effects, particularly in the form of cardiovascular toxicity...
February 19, 2018: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29457540/therapeutic-efficacy-of-cd34-cell-involved-mononuclear-cell-therapy-for-no-option-critical-limb-ischemia-a-meta-analysis-of-randomized-controlled-clinical-trials
#13
Tianyue Pan, Zheng Wei, Yuan Fang, Zhihui Dong, Weiguo Fu
Early-phase clinical trials in patients with critical limb ischemia (CLI) have shown positive results of mononuclear cell therapy. The current meta-analysis investigated whether cluster of differentiation (CD) 34+ mononuclear cell therapy (CD34+ MCT) is effective for no-option CLI. Ten randomized controlled clinical studies of CD34+ MCT for no-option CLI with 479 patients were identified and analyzed for pooled results. Compared to control groups, the CD34+ MCT was associated with lower total amputation (odds ratio (OR): 0...
February 1, 2018: Vascular Medicine
https://www.readbyqxmd.com/read/29457388/-case-control-study-of-therapeutic-effects-between-extreme-lateral-interbody-fusion-and-conventional-posterior-operation-for-the-treatment-of-upper-lumbar-disc-herniation
#14
Can-Hua Xu, Zeng-Hui Wu, Rong-Chun Chen, Hong-Fa Zhong, Qing-Shun Zhang, Ning Liu, Bi Zhang
OBJECTIVE: To evaluate the clinical outcomes between extreme lateral interbody fusion and conventional posterior operation in the treatment of upper lumbar disc herniation. METHODS: Among 60 patients with upper lumbar disc herniation were treated with extreme lateral interbody fusion(XLIF) or conventional posterior operation from June 2010 to December 2014, 30 patients(19 males and 11 females) were treated with XLIF (XLIF group); and the other 30 patients(17 males and 13 females) were treated with conventional posterior operation (conventional group)...
November 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29457330/modeling-suicide-in-bipolar-disorders
#15
REVIEW
Gin S Malhi, Tim Outhred, Pritha Das, Grace Morris, Amber Hamilton, Zola Mannie
INTRODUCTION: Suicide is a multicausal human behavior, with devastating and immensely distressing consequences. Its prevalence is estimated to be 20-30 times greater in patients with bipolar disorders than in the general population. The burden of suicide and its high prevalence in bipolar disorders make it imperative that our current understanding be improved to facilitate prediction of suicide and its prevention. In this review, we provide a new perspective on the process of suicide in bipolar disorder, in the form of a novel integrated model that is derived from extant knowledge and recent evidence...
February 19, 2018: Bipolar Disorders
https://www.readbyqxmd.com/read/29457278/zwitterionic-nanocages-overcome-the-efficacy-loss-of-biologic-drugs
#16
Bowen Li, Zhefan Yuan, Peng Zhang, Andrew Sinclair, Priyesh Jain, Kan Wu, Caroline Tsao, Jingyi Xie, Hsiang-Chieh Hung, Xiaojie Lin, Tao Bai, Shaoyi Jiang
For biotherapeutics that require multiple administrations to fully cure diseases, the induction of undesirable immune response is one common cause for the failure of their treatment. Covalent binding of hydrophilic polymers to proteins is commonly employed to mitigate potential immune responses. However, while this technique is proved to partially reduce the antibodies (Abs) reactive to proteins, it may induce Abs toward their associated polymers and thus result in the loss of efficacy. Zwitterionic poly(carboxybetaine) (PCB) is recently shown to improve the immunologic properties of proteins without inducing any antipolymer Abs against itself...
February 19, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29457151/the-impact-of-igg-transplacental-transfer-on-early-life-immunity
#17
Genevieve G Fouda, David R Martinez, Geeta K Swamy, Sallie R Permar
Pediatric vaccines have significantly reduced infectious disease-related infant mortality, but as protective immunity often require several infant vaccine doses; maternally-acquired antibodies are critical to protect infants during the first months of life. Consequently, immunization of pregnant women is an important strategy not only to protect mothers from infection, but also to provide immunity to young infants. Nevertheless, maternal immunization can also negatively impact early life immunity. In fact, maternal antibodies can interfere with the development of infant immune responses, though it is unclear if such interference is clinically significant...
January 1, 2018: ImmunoHorizons
https://www.readbyqxmd.com/read/29457012/impact-of-folliculitis-decalvans-on-quality-of-life-and-subjective-perception-of-disease
#18
Cristina Pindado-Ortega, David Saceda-Corralo, Laura Miguel-Gómez, Diego Buendía-Castaño, Pablo Fernández-González, Oscar M Moreno-Arrones, Pablo Fonda-Pascual, Adrian Alegre-Sánchez, Rita Rodrigues-Barata, Sergio Vañó-Galván
Folliculitis decalvans (FD) is a primary neutrophilic scarring alopecia characterized by perifollicular papules, crusts, and pustules frequently located on the vertex. FD may affect young men and women. Since it may lead to hair loss, it can have a negative impact on patients' quality of life. Nevertheless, studies have focused on clinical, prognostic, and therapeutic aspects without considering the psychological impact of FD. In our study, we found that FD patients experienced a considerable impact on their quality of life...
January 2018: Skin Appendage Disorders
https://www.readbyqxmd.com/read/29456977/epidemiologic-and-demographic-features-therapeutic-intervention-and-prognosis-of-the-patients-with-cerebral-aneurysm
#19
Masih Sabouri, Amir Mahabadi, Homayoun Tabesh, Majeed Rezvani, Masih Kouchekzadeh, Ali Namazi
Background: Cerebral aneurysms are a kind of cardiovascular diseases which are accompanied with high morbidity and mortality due to rupturing and causing subarachnoid hemorrhages. The current study aimed to determine epidemiologic and demographic features and prognosis of patients with cerebral aneurysms. Materials and Methods: In this cross-sectional study, 465 patients with cerebral aneurysms hospitalized in Al-Zahra Hospital were studied. The required information including demographic, epidemiologic, and clinical features of the disease were extracted from their records...
2018: Advanced Biomedical Research
https://www.readbyqxmd.com/read/29456933/pediatricians-lack-knowledge-for-the-diagnosis-and-management-of-functional-constipation-in-children-over-6-mo-of-age
#20
Ariani Widodo, Badriul Hegar, Yvan Vandenplas
AIM: To assess the knowledge of general pediatricians througout Indonesia about the diagnosis and treatment of childhood constipation. METHODS: A comprehensive questionnaire was distributed to general pediatricians from several teaching hospitals and government hospitals all over Indonesia. RESULTS: Data were obtained from 100 pediatricians, with a mean of 78.34 ± 18.00 mo clinical practice, from 20 cities throughout Indonesia. Suspicion of constipation in a child over 6 mo of age arises when the child presents with a decreased frequency of bowel movements (according to 87% of participants) with a mean of one bowel movement per 3...
February 8, 2018: World Journal of Clinical Pediatrics
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