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https://www.readbyqxmd.com/read/29036502/three-cases-of-fatal-acrylfentanyl-toxicity-in-the-united-states-and-a-review-of-literature
#1
Daniel C Butler, Kevin Shanks, George S Behonick, Dustin Smith, Susan E Presnell, Lee Marie Tormos
Fentanyl analogs pose a unique challenge for forensic pathologists and toxicologists. The extreme potency of these analogs results in minute blood, urine and vitreous concentrations that are technically difficult to identify. This in addition to their absence from standard drug screening may potentiate a setting of apparent drug overdose without an immediately identifiable source. The following case series illustrates three such encounters with acrylfentanyl, an analog whose presence has not yet been reported in the scientific literature in the United States...
September 28, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29035801/systematic-review-with-meta-analysis-performance-of-dried-blood-spots-for-hepatitis-c%C3%A2-antibodies-detection
#2
REVIEW
B A Muzembo, N C Mbendi, S F Nakayama
OBJECTIVES: Dried blood spots (DBS) specimens can be used for hepatitis C virus (HCV) infection screening in cases where serum specimens are difficult to obtain. However, uncertainties surround the sensitivity and specificity of DBS for HCV antibodies (anti-HCV) serology testing. We aimed to evaluate the accuracy of DBS use to screen for HCV infection. STUDY DESIGN: We carried out a systematic review and meta-analysis. METHODS: Medline and EMBASE databases were searched for articles published between 1989 and November 2016...
October 13, 2017: Public Health
https://www.readbyqxmd.com/read/29035675/practical-considerations-in-clinical-strategy-to-support-the-development-of-injectable-drug-device-combination-products-for-biologics
#3
Zhaoyang Li, Rachael Easton
The development of an injectable drug-device combination (DDC) product for biologics is an intricate and evolving process that requires substantial investments of time and money. Consequently, the commercial dosage form(s) or presentation(s) are often not ready when pivotal trials commence, and it is common to have drug product changes (manufacturing process or presentation) during clinical development. A scientifically sound and robust bridging strategy is required in order to introduce these changes into the clinic safely...
October 16, 2017: MAbs
https://www.readbyqxmd.com/read/29035611/are-people-who-inject-drugs-frequent-users-of-emergency-department-services-a-cohort-study-2008-2013
#4
Dhanya Nambiar, Tim Spelman, Mark Stoové, Paul Dietze
BACKGROUND: Although people who inject drugs (PWID) have been described as frequent users of emergency services, the majority of research is cross-sectional and involves records from a single emergency department (ED). OBJECTIVES: We describe characteristics of state-wide ED presentations in a cohort of PWID, and compare presentation rates to the general population. We also examine characteristics associated with frequent ED use. METHODS: We used data from a retrospective linkage of public ED presentations from a cohort of 678 PWID between January 2008 and June 2013...
October 16, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/29035148/treatment-of-pulmonary-fibrosis-with-sirna-against-a-collagen-specific-chaperone-hsp47-in-vitamin-a-coupled-liposomes
#5
Mitsuo Otsuka, Masanori Shiratori, Hirofumi Chiba, Koji Kuronuma, Yasushi Sato, Yoshiro Niitsu, Hiroki Takahashi
BACKGROUND: Pulmonary fibrosis is a life-threatening pathological state of progressive interstitial lung diseases, such as idiopathic pulmonary fibrosis. Myofibroblasts are known to play a critical role in the pathogenesis of pulmonary fibrosis. This study aimed to evaluate the inhibitory effect of a small interfering RNA (siRNA) on a collagen-specific chaperone heat shock protein 47 (HSP47). The siRNA was preferentially delivered to myofibroblasts in a bleomycin (BLM)-induced pulmonary fibrosis rat model using siRNA against HSP47, encapsulated in a vitamin A-coupled liposome (VA-lip-siRNA HSP47)...
October 16, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29034837/dual-purpose-injectable-doxorubicin-conjugated-alginate-gel-containing-polycaprolactone-microparticles-for-anti-cancer-and-anti-inflammatory-therapy
#6
Vaishali Pawar, Vivek Borse, Riya Thakkar, Rohit Srivastava
In situ gel formulations have been widely reported as a carrier for sustained release delivery systems due to certain advantages such as targeted drug delivery, minimal invasiveness and potent therapeutic activity. Herein, in situ gel system for sustained release of doxorubicin and ibuprofen for anti-cancer and anti-inflammatory activity is reported. Doxorubicin-conjugated alginate (dox-alg) gel was prepared using EDC-NHS chemistry and loaded with ibuprofen encapsulated polycaprolactone (PCL) microparticles (dox-alg composite)...
October 13, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/29034725/polypharmacy-and-risk-of-falls-and-fractures-for-patients-with-hiv-infection-and-substance-dependence
#7
Theresa W Kim, Alexander Y Walley, Alicia S Ventura, Gregory J Patts, Timothy C Heeren, Gabriel B Lerner, Nicholas Mauricio, Richard Saitz
Although people with HIV infection (PLWH) are at higher risk of polypharmacy and substance use, there is limited knowledge about potential harms associated with polypharmacy such as falls and fractures in this population. The study objective was to determine whether polypharmacy, as measured by the number and type of medication, is associated with falls and fractures among PLWH and DSM-IV substance dependence in the past year or ever injection drug use (IDU). We identified the number of medications by electronic medical record review in the following categories: (i) systemically active, (ii) non-antiretroviral (non-ARV), (iii) sedating, (iv) non-sedating as well as any opioid medication and any non-opioid sedating medication...
October 16, 2017: AIDS Care
https://www.readbyqxmd.com/read/29034189/antidiabetic-activity-of-extracts-of-anacardium-occidentale-linn-leaves-on-n-streptozotocin-diabetic-rats
#8
Y S Jaiswal, P A Tatke, S Y Gabhe, A B Vaidya
Anacardium occidentale L. (Anacardiaceae) is used in South Cameroon as well as in other tropical countries by traditional practitioners as a folk remedy for treatment of diabetes mellitus. We demonstrated the antidiabetic potential of the plant extracts in n-streptozotocin diabetic rats. The aim of the current study was to investigate the antidiabetic effects of ethanol extract of leaves of A. occidentale on neonatal streptozotocin diabetic rats. Two day old neonates were injected with 100 mg/kg of streptozotocin...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29033730/intentional-intra-arterial-injection-of-midazolam-in-a-patient-with-status-epilepticus-in-the-intensive-care-unit
#9
Muhammad Asghar Ali, Muhammad Yahya
Fundamental medical care includes intravenous (IV) access which provides prompt resuscitation and reliable delivery of analgesics, antibiotics, and vasoactive medication. Difficult access populations, especially in critical area, continue to challenge providers to consider and utilize alternative means to provide IV access. Potential options under such circumstances include intramuscular, intraosseous, and intratracheal drug administration, but in extreme cases where no other options are available, intra-arterial route might be considered...
October 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/29033727/ultrasound-assessment-of-cranial-spread-during-caudal-blockade-in-children-effect-of-different-volumes-of-local-anesthetic
#10
Chandni Sinha, Amarjeet Kumar, Shalini Sharma, Akhilesh Kumar Singh, Somak Majumdar, Ajeet Kumar, Nishant Sahay, Bindey Kumar, U K Bhadani
BACKGROUND: Ultrasound-guided caudal block injection is a simple, safe, and effective method of anesthesia/analgesia in pediatric patients. The volume of caudal drug required has always been a matter of debate. MATERIALS AND METHODS: This present prospective, randomized, double-blinded study aimed to measure extent of the cranial spread of caudally administered levobupivacaine in Indian children by means of real-time ultrasonography. Ninety American Society of Anesthesiologists I/II children scheduled for urogenital surgeries were enrolled in this trial...
October 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/29033104/progesterone-releasing-devices-for-cattle-estrus-induction-and-synchronization-device-optimization-to-anticipate-shorter-treatment-durations-and-new-device-developments
#11
W de Graaff, B Grimard
Synchronization programs using progesterone-releasing intravaginal devices that allow for fixed time artificial insemination are still finding increasing application in bovine reproduction. This practice is useful for rationalizing livestock management because an increased number of cows can be inseminated in one session without the need for estrus detection. Although much of the innovation related to the design and development of intravaginal devices for use in cattle took place in the previous century, progress in understanding the physiology of the bovine estrous cycle resulted in shorter treatment durations, a trend which is still continuing...
September 27, 2017: Theriogenology
https://www.readbyqxmd.com/read/29032634/prevalence-of-hepatitis-c-infection-and-its-associated-factors-in-healthy-adults-without-identifiable-route-of-transmission
#12
Ngai Sze Wong, Cheuk Kwong Lee, Siu Cheung Ng, Hoi Kei Wong, Denise P C Chan, Shui Shan Lee
While hepatitis C virus (HCV) infection is long known to be associated with parenteral exposure, the specific route of transmission is not identified in a proportion of infected patients. Taking blood donors as the surrogate of healthy adults in the community in Hong Kong, we identified 91 HCV infected donors (≤0.02% positive rate) in 2014-2016, of whom 46 were recruited in a mixed method study to examine their transmission routes. A majority (75%) of the recruited donors were HCV RNA positive, with the predominant subtypes being 1b and 6a...
October 15, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29032478/total-knee-arthroplasty-in-patients-with-a-history-of-illicit-intravenous-drug-abuse
#13
David E Bauer, Andreas Hingsammer, Lukas Ernstbrunner, Alexander Aichmair, Andrea B Rosskopf, Franziska Eckers, Karl Wieser, Sandro F Fucentese
PURPOSE: Injection drug users are at high risk for both infection with blood-borne pathogens, namely, human immune deficiency virus (HIV), hepatitis-B, -C virus, various bacterial infections, as well as early primary and secondary joint degeneration. When total knee arthroplasty (TKA) is anticipated the risk of septic complications is a major concern. The purpose of this study was to assess the clinical and radiographic outcome of patients with a history of intravenous drug use after total knee arthroplasty...
October 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29032058/cross-state-dependency-of-learning-between-arachidonylcyclopropylamide-acpa-and-muscimol-in-the-mouse-dorsal-hippocampus
#14
Majid Jafari-Sabet, Amir-Mohammad Karimi
The aim of the present study was to examine cross state-dependent learning between ACPA (a selective cannabinoid CB1 receptor agonist) and muscimol (a selective GABAA receptor agonist) in the step-down inhibitory avoidance learning task. The dorsal hippocampal CA1 regions of adult male NMRI mice were bilaterally cannulated, and all drugs were microinjected into the intended sites of injection. Post-training and/or pre-test administration of ACPA (1 and 2ng/mouse) dose-dependently induced amnesia. Pre-test microinjection of the same doses of ACPA reversed the post-training ACPA-induced amnesia...
October 12, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29032011/sitagliptin-enhances-the-neuroprotective-effect-of-pregabalin-against-pentylenetetrazole-induced-acute-epileptogenesis-in-mice-implication-of-oxidative-inflammatory-apoptotic-and-autophagy-pathways
#15
Manar A Nader, Hayam Ateyya, Mohamed El-Shafey, Nagla A El-Sherbeeny
The current investigation aimed at studying the anti-epileptogenic effect of sitagliptin. The possible effect of the drug in combination with pregabalin in pentylenetetrazole (PTZ)- induced seizures was studied. In addition, the postulated mechanisms that could mediate such effect were explored namely, suppression of oxidative stress and neuro-inflammatory markers, autophagy and apoptosis. Seven days prior to PTZ (60 mg/kg, sc) injection, mice were treated with sitagliptin (5, 15, and 60 mg/kg, twice daily, orally) or pregabalin (30 mg/kg, once daily, orally) or their combination...
October 11, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/29031993/the-gdf5-mutant-bb-1-enhances-the-bone-formation-induced-by-an-injectable-plga-fiber-reinforced-brushite-forming-cement-in-a-sheep-defect-model-of-lumbar-osteopenia
#16
Francesca Gunnella, Elke Kunisch, Stefan Maenz, Victoria Horbert, Long Xin, Joerg Mika, Juliane Borowski, Sabine Bischoff, Harald Schubert, Andre Sachse, Bernhard Illerhaus, Jens Günster, Jörg Bossert, Klaus D Jandt, Frank Plöger, Raimund W Kinne, Olaf Brinkmann, Matthias Bungartz
BACKGROUND CONTEXT: Targeted delivery of osteoinductive bone morphogenetic proteins (BMPs; e.g., GDF5) in bioresorbable calcium phosphate cement (CPC), potentially suitable for vertebroplasty/kyphoplasty of osteoporotic vertebral fractures, may be required to counteract augmented local bone catabolism and support complete bone regeneration. The biologically optimized GDF5 mutant BB-1 may represent an attractive drug candidate for this purpose. PURPOSE: The aim of the current study was to test an injectable, poly (l-lactide-co-glycolide) acid (PLGA)-fiber reinforced, brushite-forming cement (CPC) containing low-dose BB-1 in a sheep lumbar osteopenia model...
October 12, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29031952/antitumor-efficacy-and-toxicity-of-5-fu-loaded-plga-pellets
#17
Nattawut Leelakanok, Sean M Geary, Aliasger K Salem
The aim of this study was to formulate a biodegradable implant capable of imparting local anti-tumor activity through the sustained release of the chemotherapeutic agent, 5-fluorouracil (5-FU). Thus injectable pellets (< 1.2 mm diameter) made from poly(lactide co-glycolide (PLGA) and loaded with 5-FU at varying drug:polymer ratios were fabricated using hot-melt extrusion and tested for their ability to provide sustained release of 5-FU in in vitro and in vivo settings. In addition, these formulations were compared against soluble 5-FU for their antitumor activity in vivo as well as for their toxicity...
October 12, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29031619/chemoprevention-by-artesunate-in-a-preclinical-model-of-colorectal-cancer-involves-down-regulation-of-%C3%AE-catenin-suppression-of-angiogenesis-cellular-proliferation-and-induction-of-apoptosis
#18
Sneh Verma, Prasenjit Das, Vijay L Kumar
Use of anti-inflammatory drugs is well known to decrease the risk of colorectal cancer, one of the most common causes of cancer related mortality. In view of anti-inflammatory property of artesunate reported in various experimental models, the present study was carried out to evaluate its efficacy in rat model where colon carcinogenesis was induced by 1, 2 dimethylhydrazine (DMH). A time course study revealed that two injections of DMH given at an interval of one week resulted in appearance of multiple plaque lesions and aberrant crypt foci in the colon with a peak effect occurring at the end of 8 weeks...
October 12, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29031499/micrornas-15a-and-16-1-activate-signaling-pathways-that-mediate-chemotaxis-of-immune-regulatory-b-cells-to-colorectal-tumors
#19
Ronghua Liu, Zhou Lu, Jie Gu, Jiajing Liu, Enyu Huang, Xiaoming Liu, Luman Wang, Jiao Yang, Yuting Deng, Jiawen Qian, Feifei Luo, Zhiming Wang, Hushan Zhang, Xuechao Jiang, Dan Zhang, Jing Qian, Guangwei Liu, Hongguang Zhu, Youcun Qian, Zhanju Liu, Yiwei Chu
BACKGROUND & AIMS: B cells infiltrate tumors but little is known about how they affect tumor growth and progression. microRNA15A (MIR15A or miRNA15A) and microRNA16-1 (MIR16-1 or miRNA16-1) regulate cell proliferation, apoptosis and drug resistance. We investigated their involvement in B cell-mediated immune suppression by colorectal tumors. METHODS: Mice with disruptions of the gene cluster that encodes MIR15A and MIR16-1 (KO mice), and control (C57BL/B6) mice were given azoxymethane with dextran sodium sulfate (AD) to induce formation of colorectal tumors...
October 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29031429/outbreak-of-group-a-streptococcus-emm94-0-affecting-people-who-inject-drugs-in-southwest-england-april-2017
#20
Rachel M Kwiatkowska, Petra Manley, Ben Sims, Theresa Lamagni, Derren Ready, Juliana Coelho, Layth Alsaffar, Charles R Beck, Fiona Neely
We report an outbreak of invasive and noninvasive group A Streptococcus during April 2017 among people who inject drugs in southwest England. To date we have identified 14 cases linked to a specific town, all confirmed as group A Streptococcus emm94.0, a strain type not previously reported in the area. We have yet to identify a source for this ongoing outbreak. Actions described here may help reduce the burden of infection in vulnerable populations.
October 11, 2017: American Journal of Infection Control
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