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https://www.readbyqxmd.com/read/29334577/consequences-of-the-f-d-a-directed-moratorium-on-silicone-gel-breast-implants-1992-2006
#1
Norman M Cole
The FDA silicone gel breast implant moratorium occurred 25 years ago. The immediate and long-term consequences of the moratorium are reviewed and assessed.
January 10, 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29334390/smartphone-integrated-optoelectrowetting-sioew-for-on-chip-sample-processing-and-microscopic-detection-of-water-quality
#2
Dongyue Jiang, Seunguk Lee, Sung Woo Bae, Sung-Yong Park
With the increasing capabilities and ubiquity of smartphones and their associated digital cameras, this study presents a smartphone integrated optoelectrowetting (SiOEW) device as a simple, portable tool capable of on-chip water sample preparation and microscopic detection of the target cells in water samples, which significantly reduce the detection time and the labor cost required for water quality monitoring. A commercially available smartphone is used as a low-intensity portable light source to perform optoelectrowetting (OEW)-based microfluidic operations such as droplet transportation, merging, mixing, and immobilization on a hydrophobic detection zone...
January 15, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29333041/pharmacological-evaluation-of-hepatoprotective-activity-of-ahpl-aytab-0613-tablet-in-carbon-tetrachloride-ethanol-and-paracetamol-induced-hepatotoxicity-models-in-wistar-albino-rats
#3
Sanjay U Nipanikar, Sohan S Chitlange, Dheeraj Nagore
Background: Hepatotoxicity ultimately leads to liver failure. Conventional treatment options for hepatotoxicity are limited and not safe. Objective: Formulation AHPL/AYTAB/0613 is developed to provide safer and effective hepatoprotective drug of natural origin. A study was conducted to evaluate hepatoprotective activity of AHPL/AYTAB/0613 (three dosages) in comparison with marketed formulations in carbon tetrachloride (CCl4), ethanol, and paracetamol-induced hepatotoxicity in Wistar albino rats...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29332585/new-tacrines-as-anti-alzheimer-s-disease-agents-ii-the-benzo-chromenopyranotacrines
#4
Maria J Oset-Gasque, Jose Marco-Contelles
Tacrine was the first drug approved by FDA (US) for the treatment of Alzheimer's disease suffering patients. Nowadays, this agent has been withdrawn from the clinics due to secondary effects, among them, and the most important, its hepatotoxicity. However, the research on new tacrine analogues devoid of these therapeutically undesirable effects, but benefiting of their high and well known positive cholinergic power, has produced a number of new non-hepatotoxic tacrines. In this context, in our laboratory, in the last years we have prepared a new heterocyclic tacrines by changing the benzene ring present in tacrine by appropriate heterocyclic motifs...
January 12, 2018: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/29332581/cetuximab-and-the-head-and-neck-squamous-cell-cancer
#5
Riccardo Concu, Maria Natalia Dias Soeiro Cordeiro
The head and neck squamous cell cancer (HNSCC) is the most common type of head and neck cancer (more than 90%), and all over the world more than a half million people have been developing this cancer in the last years. This type of cancer is usually marked by a poor prognosis with a really significant morbidity and mortality. Cetuximab received early favor as an exciting and promising new therapy with relatively mild side effect, and due to this received authorization in the 2004 from the European Medicines Agency (EMA) and in the 2006 from the Food and Drug Association (FDA) for the treatment of patients with squamous cell cancer of the head and neck in combination with radiation therapy for locally advanced disease...
January 12, 2018: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/29332566/stimuli-responsive-nanoparticles-for-controlled-anti-cancer-drug-release
#6
Qi Tang, Bing Yu, Lilong Gao, Hailin Cong, Na Song, Chenghao Lu
Conventional drugs used for cancer chemotherapy have severe toxic side effects and show individually varied therapeutic responses. The convergence of nanotechnology, biology, material science and pharmacy offers a perspective strategy for cancer chemotherapy. Nanoparticles loaded with anti-cancer drug have been designed to overcome the limitations associated with conventional drugs, several nanomedicines have been approved by FDA and shown good performances in clinical practice. However, the therapeutic efficacies cannot be enhanced...
January 10, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29332209/the-rapid-diagnosis-of-viral-respiratory-tract-infections-and-its-impact-on-antimicrobial-stewardship-programs
#7
Şiran Keske, Önder Ergönül, Faik Tutucu, Doruk Karaaslan, Erhan Palaoğlu, Füsun Can
We aimed to describe the potential benefit of new rapid molecular respiratory tests (MRT) in decreasing inappropriate antibiotic use among the inpatients presenting with influenza-like illness (ILI). We included patients from inpatient and outpatient departments who had ILI and performed MRT between 1 January 2015 and 31 December 2016 in a 265-bed private hospital in Istanbul. At the end of 2015, we implemented antimicrobial stewardship including systematic use of MRT. Then, we compared our observations between the year 2015 and the year 2016...
January 13, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29331948/lvis-blue-as-a-low-porosity-stent-and-coil-adjuvant
#8
Matthew J Koch, Christopher J Stapleton, Scott B Raymond, Susan Williams, Thabele M Leslie-Mazwi, James David Rabinov, Aman B Patel
INTRODUCTION: The LVIS Blue is an FDA-approved stent with 28% metallic coverage that is indicated for use in conjunction with coil embolization for the treatment of intracranial aneurysms. Given a porosity similar to approved flow diverters and higher than currently available intracranial stents, we sought to evaluate the effectiveness of this device for the treatment of intracranial aneurysms. METHODS: We performed an observational single-center study to evaluate initial occlusion and occlusion at 6-month follow-up for patients treated with the LVIS Blue in conjunction with coil embolization at our institution using the modified Raymond-Roy classification (mRRC), where mRRC 1 indicates complete embolization, mRRC 2 persistent opacification of the aneurysm neck, mRRC 3a filling of the aneurysm dome within coil interstices, and mRRC 3b filling of the aneurysm dome...
January 13, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29329891/medical-use-of-cannabis-and-cannabinoids-containing-products-regulations-in-europe-and-north-america
#9
REVIEW
Ran Abuhasira, Liat Shbiro, Yuval Landschaft
In 1937, the United States of America criminalized the use of cannabis and as a result its use decreased rapidly. In recent decades, there is a growing interest in the wide range of medical uses of cannabis and its constituents; however, the laws and regulations are substantially different between countries. Laws differentiate between raw herbal cannabis, cannabis extracts, and cannabinoid-based medicines. Both the European Medicines Agency (EMA) and the United States Food and Drug Administration (FDA) do not approve the use of herbal cannabis or its extracts...
January 10, 2018: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29329002/integration-of-multi-scale-molecular-modeling-approaches-with-experiments-for-the-in-silico-guided-design-and-discovery-of-novel-herg-neutral-antihypertensive-oxazalone-and-imidazolone-derivatives-and-analysis-of-their-potential-restrictive-effects-on-cell
#10
Serdar Durdagi, Busecan Aksoydan, Ismail Erol, Isik Kantarcioglu, Yavuz Ergun, Gulay Bulut, Melih Acar, Timucin Avsar, George Liapakis, Vlasios Karageorgos, Ramin E Salmas, Barış Sergi, Sara Alkhatib, Gizem Turan, Berfu Nur Yigit, Kutay Cantasir, Bahar Kurt, Turker Kilic
AT1 antagonists is the most recent drug class of molecules against hypertension and they mediate their actions through blocking detrimental effects of angiotensin II (A-II) when acts on type I (AT1) A-II receptor. The effects of AT1 antagonists are not limited to cardiovascular diseases. AT1 receptor blockers may be used as potential anti-cancer agents - due to the inhibition of cell proliferation stimulated by A-II. Therefore, AT1 receptors and the A-II biosynthesis mechanisms are targets for the development of new synthetic drugs and therapeutic treatment of various cardiovascular and other diseases...
December 11, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29328598/the-fate-of-fda-postapproval-studies
#11
Lisa M Schwartz, Steven Woloshin, Thomas J Moore
No abstract text is available yet for this article.
December 14, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29328597/the-fate-of-fda-postapproval-studies
#12
Todd Hobbs
No abstract text is available yet for this article.
December 14, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29327974/the-fda-and-the-us-direct-to-consumer-marketplace-for-stem-cell-interventions-a-temporal-analysis
#13
Paul S Knoepfler, Leigh G Turner
Hundreds of businesses in the US currently advertise a wide range of non-US FDA-approved stem cell interventions. Here we present a novel systematic temporal analysis of US companies engaged in direct-to-consumer marketing of putative stem cell treatments. Between 2009 and 2014, the number of new US stem cell businesses with websites grew rapidly, at least doubling on average every year. From 2014 to 2016, approximately 90-100 new stem cell business websites appeared per year. In contrast, from 2012 to the present, regulatory activity in the form of FDA warning letters has been limited...
January 12, 2018: Regenerative Medicine
https://www.readbyqxmd.com/read/29327913/proteomic-analysis-of-the-downstream-signaling-network-of-parp1
#14
Yuanli Zhen, Yonghao Yu
Poly-ADP-ribosylation (PARylation) is a protein posttranslational modification (PTM) that is critically involved in many biological processes that are linked to cell stress responses. It is catalyzed by a class of enzymes known as poly-ADP-ribose polymerases (PARPs). In particular, PARP1 is a nuclear protein that is activated upon sensing nicked DNA. Once activated, PARP1 is responsible for the synthesis of a large number of PARylated proteins and initiation of the DNA damage response (DDR) mechanisms. This observation provided the rationale for developing PARP1 inhibitors for the treatment of human malignancies...
January 12, 2018: Biochemistry
https://www.readbyqxmd.com/read/29327400/a-vitamin-b12-conjugate-of-exendin-4-improves-glucose-tolerance-without-associated-nausea-or-hypophagia-in-rodents
#15
Elizabeth G Mietlicki-Baase, Claudia G Liberini, Jayme L Workinger, Ron L Bonaccorso, Tito Borner, David J Reiner, Kieran Koch-Laskowski, Lauren E McGrath, Rinzin Lhamo, Lauren M Stein, Bart C De Jonghe, George G Holz, Christian L Roth, Robert P Doyle, Matthew R Hayes
AIMS: While pharmacological glucagon-like peptide-1 receptor (GLP-1R) agonists are FDA-approved for treating type 2 diabetes mellitus (T2DM) and obesity, a major side effect is nausea/malaise. We recently developed a conjugate of vitamin B12 bound to the GLP-1R agonist exendin-4 (Ex4), which displays enhanced proteolytic stability and retention of GLP-1R agonism. Here, we evaluate whether the conjugate (B12-Ex4) can improve glucose tolerance without producing anorexia and malaise. MATERIALS AND METHODS: We evaluated the effects of systemic B12-Ex4 and unconjugated Ex4 on food intake and body weight change, oral glucose tolerance, and nausea/malaise in male rats, and on intraperitoneal glucose tolerance in mice...
January 12, 2018: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29326281/evaluation-of-overall-response-rate-and-progression-free-survival-as-potential-surrogate-endpoints-for-overall-survival-in-immunotherapy-trials
#16
Sirisha L Mushti, Flora Mulkey, Rajeshwari Sridhara
PURPOSE: With the approval of immunotherapies for a variety of indications, methods to assess treatment benefit addressing the response patterns observed are important. We evaluated RECIST criteria based objective response rate (ORR) and progression-free survival (PFS) as potential surrogate endpoints of overall survival (OS), and explored a modified definition of PFS by altering the threshold percentage determining disease progression to assess the association with survival benefit in immunotherapy trials...
January 11, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29326088/age-effects-of-distinct-immune-checkpoint-blockade-treatments-in-a-mouse-melanoma-model
#17
Álvaro Padrón, Vincent Hurez, Harshita B Gupta, Curtis A Clark, Sri Lakshmi Pandeswara, Bin Yuan, Robert S Svatek, Mary Jo Turk, Justin M Drerup, Rong Li, Tyler J Curiel
Cancer immunotherapy has shown remarkable recent progress. Immune checkpoint blocking antibodies have become the most successful anti-cancer agent class ever developed, with six distinct agents approved since 2011 for a wide variety of cancers. Although age is the biggest risk factor for cancer (aside from selected early-onset pediatric cancers), these agents were tested pre-clinically in young hosts, and there is remarkably little published on the effects of host age on treatment outcomes in pre-clinical studies or human clinical trials...
January 8, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29325755/amphotericin-b-albumin-conjugates-synthesis-toxicity-and-anti-fungal-activity
#18
Sneha Gurudevan, Arul Prakash Francis, A Jayakrishnan
Amphotericin B (AmB), a hydrophobic drug with negligible aqueous solubility was conjugated to bovine serum albumin (BSA) via amide bond coupling to give 6 to 8 wt% drug payload. The resulting conjugate was characterized using SDS-PAGE and UV-visible, FTIR and CD spectroscopy. The conjugate was water-soluble to the extent of 150 mg/ml, was non-toxic to HEK 293 T cells at a concentration of 500 μg/ml (equivalent to ~30 μg AmB) and showed hemolysis of <5% at 200 μg/ml (equivalent to ~12 μg AmB) against human erythrocytes in vitro...
January 8, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29325272/-advances-in-the-treatment-of-primary-biliary-cholangitis
#19
Y M Li, Q X Wang, X Ma
Primary biliary cholangitis (PBC) is an autoimmune liver disease mainly involving intrahepatic interlobular bile ducts and can progress to liver fibrosis, liver cirrhosis, and even liver failure. Ursodeoxycholic acid (UDCA) is the first-line therapeutic drug for PBC and can delay disease progression, but as high as 40% of patients have suboptimal response to UDCA. Obeticholic acid, a farnesoid X receptor agonist, has been approved by FDA in May 2016 for patients who have no response to UDCA treatment or cannot tolerate such treatment...
November 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29324774/activated-carbon-n-acetylcysteine-microcapsule-protects-against-nonalcoholic-fatty-liver-disease-in-young-rats-via-activating-telomerase-and-inhibiting-apoptosis
#20
Tingting Shi, Xingxin Yang, Hongping Zhou, Jianjun Xi, Jingjing Sun, Yunling Ke, Jiankang Zhang, Yidan Shao, Xiaojie Jiang, Xuwang Pan, Shourong Liu, Rangxiao Zhuang
Non-alcoholic fatty liver disease (NAFLD) is becoming one of the world's most common chronic liver diseases in childhood, yet no therapy is available that has been approved by the food and drug administration (FDA). Previous studies have reported that telomere and telomerase are involved the development and progression of NAFLD. This study was designed to investigate the potential beneficial effects of activated carbon N-acetylcysteine (ACNAC) microcapsules on the development of NAFLD in young rats as well as the underlying mechanism(s) involved...
2018: PloS One
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