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https://www.readbyqxmd.com/read/28815790/evaluation-of-wastewater-treatment-by-ozonation-for-reducing-the-toxicity-of-contaminants-of-emerging-concern-to-rainbow-trout-oncorhynchus-mykiss
#1
Nicholas Maya, Jaden Evans, Deniz Nasuhoglu, Siavash Isazadeh, Viviane Yargeau, Chris D Metcalfe
While conventional wastewater treatment technologies are effective at removing many contaminants of emerging concern (CECs) from municipal wastewater, some contaminants are not removed efficiently. Ozonation may be a treatment option for reducing the concentrations of recalcitrant CECs in wastewater, but this process may generate toxic transformation-products. In the present study, we conducted semi-batch experiments to ozonate municipal wastewater effluent (WWE) spiked with 5 commonly detected CECs. The purpose of the study was to evaluate whether ozonation increased or decreased biological responses indicative of sublethal toxicity in juvenile rainbow trout (Oncorhynchus mykiss) injected intraperitoneally (i...
August 16, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28815720/pharmacological-evidence-of-involvement-of-nitric-oxide-pathway-in-anti-pruritic-effects-of-sumatriptan-in-chloroquine-induced-scratching-in-mice
#2
Nazgol-Sadat Haddadi, Sattar Ostadhadi, Saeed Shakiba, Khashayar Afshari, Nastaran Rahimi, Arash Foroutan, Ahmad-Reza Dehpour
Chloroquine (CQ) induces histamine-independent itch in human and mice. We recently reported the role of intradermal nitric oxide (NO)/ cyclic guanosine monophosphate (cGMP) pathway in CQ-evoked scratching in mice. Chloroquine stimulates neuronal nitric oxide synthase (nNOS) activity to over-producing NO in the skin. Sumatriptan, a 5-hydroxytryptamine 1b/1d receptors (5-HTR1b/1d) agonist, is involved in pain and used to treat migraine and cluster headaches. According to previous studies, sumatriptan inhibits NOS activity...
August 16, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28814809/non-thermal-plasma-treated-solution-demonstrates-antitumor-activity-against-pancreatic-cancer-cells-in-vitro-and-in-vivo
#3
Kim Rouven Liedtke, Sander Bekeschus, André Kaeding, Christine Hackbarth, Jens-Peter Kuehn, Claus-Dieter Heidecke, Wolfram von Bernstorff, Thomas von Woedtke, Lars Ivo Partecke
Pancreatic cancer is associated with a high mortality rate. In advanced stage, patients often experience peritoneal carcinomatosis. Using a syngeneic murine pancreatic cancer cell tumor model, the effect of non-thermal plasma (NTP) on peritoneal metastatic lesions was studied. NTP generates reactive species of several kinds which have been proven to be of relevance in cancer. In vitro, exposure to both plasma and plasma-treated solution significantly decreased cell viability and proliferation of 6606PDA cancer cells, whereas mouse fibroblasts were less affected...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814248/pediatric-abdominal-trauma
#4
Tim Lynch
Abdominal trauma is present in approximately 25% of pediatric patients with major trauma and is the most common cause of unrecognized fatal injury in children. Pediatric abdominal trauma is typically blunt in nature with the spleen being the most common organ injured. Non-operative management is employed in over 95% of patients. Penetrating injuries are less common but often require operative management. Knowledge of specific mechanisms of injury aids the clinician in the diagnosis of specific injuries. Computed tomography (CT) is the gold standard in the identification of intra-abdominal injury...
August 14, 2017: Current Pediatric Reviews
https://www.readbyqxmd.com/read/28814157/the-role-and-mechanism-of-glutamic-nmda-receptor-in-the-mechanical-hyperalgesia-in-diabetic-rats
#5
Jin Wang, Zhaohui Sun, Yuzhao Wang, Huisheng Wang, Yuan Guo
OBJECTIVES: Some studies have shown that painful neuropathy is a common and costly complication of both type 1 and type 2 diabetes mellitus, and glutamate is involved in the process although the mechanisms are not clear. The purpose of the present study was to investigate the effect of N-methyl-D-aspartate (NMDA) receptor on mechanical hyperalgesia in diabetic rats and the possible mechanism. METHODS: Diabetic rat model was established by intraperitoneal injection of streptozotocin (STZ, 1%, 70 mg/kg) once, and evaluated by the change in the fasting blood glucose...
August 17, 2017: Neurological Research
https://www.readbyqxmd.com/read/28814090/melatonin-a-hepatoprotective-agent-against-radioiodine-toxicity-in-rats
#6
A M Barlas, M Sadic, H I Atilgan, Y M Bag, A K Onalan, N Yumusak, M Senes, V Fidanci, M R Pekcici, M Korkmaz, K Kismet, G Koca
OBJECTIVES: The aim of the current study was to investigate the possible radioprotective effects of melatonin against hepatic radioiodine (RAI) toxicity. METHODS: Thirty-six rats were randomly divided into three groups: untreated control (Group 1); oral radioiodine (RAI, 111 MBq) administrated rats (Group 2), and melatonin group (oral RAI and daily intraperitoneal injection of 12 mg/kg melatonin-Group 3). In the third group, melatonin administration was started two days before and continued for five days after RAI administration...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28813782/urea-cycle-pathway-targeted-therapeutic-action-of-naringin-against-ammonium-chloride-induced-hyperammonemic-rats
#7
Arumugam Ramakrishnan, Natesan Vijayakumar
Ammonia is a well-known neurotoxin that causes liver disease and urea cycle disorder. Excessive ammonia content in the blood leads to hyperammonemic condition and affects both excitatory and inhibitory neurotransmission including brain edema and coma. Naringin, a plant bioflavonoid present in various citrus fruits and mainly extracted from the grape fruit. This study was designed to assess the protective effect of naringin on ammonium chloride (NH4Cl) induced hyperammonemic rats. Experimental hyperammonemia was induced by intraperitoneal injections (i...
August 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28813662/a-liver-capsular-network-of-monocyte-derived-macrophages-restricts-hepatic-dissemination-of-intraperitoneal-bacteria-by-neutrophil-recruitment
#8
Frederic Sierro, Maximilien Evrard, Simone Rizzetto, Michelle Melino, Andrew J Mitchell, Manuela Florido, Lynette Beattie, Shaun B Walters, Szun Szun Tay, Bo Lu, Lauren E Holz, Ben Roediger, Yik Chun Wong, Alessandra Warren, William Ritchie, Claire McGuffog, Wolfgang Weninger, David G Le Couteur, Florent Ginhoux, Warwick J Britton, William R Heath, Bernadette M Saunders, Geoffrey W McCaughan, Fabio Luciani, Kelli P A MacDonald, Lai Guan Ng, David G Bowen, Patrick Bertolino
The liver is positioned at the interface between two routes traversed by pathogens in disseminating infection. Whereas blood-borne pathogens are efficiently cleared in hepatic sinusoids by Kupffer cells (KCs), it is unknown how the liver prevents dissemination of peritoneal pathogens accessing its outer membrane. We report here that the hepatic capsule harbors a contiguous cellular network of liver-resident macrophages phenotypically distinct from KCs. These liver capsular macrophages (LCMs) were replenished in the steady state from blood monocytes, unlike KCs that are embryonically derived and self-renewing...
August 15, 2017: Immunity
https://www.readbyqxmd.com/read/28813209/galangin-a-natural-flavonoid-reduces-mitochondrial-oxidative-damage-in-streptozotocin-induced-diabetic-rats
#9
Amal A Aloud, Chinnadurai Veeramani, Chandramohan Govindasamy, Mohammed A Alsaif, Khalid S Al-Numair
OBJECTIVE: We designed this study to observe the effect of galangin on damaged mitochondria in the liver of diabetic rats. METHODS: Male albino Wistar rats were made diabetic by injecting streptozotocin (STZ) intraperitoneally (40 mg kg(-1) body weight (BW)). Galangin (8 mg kg(-1) BW) or glibenclamide (600 µg kg(-1) BW) was given orally daily once for 45 days to both healthy and diabetic rats. RESULTS: Diabetic rats showed significant (P < 0...
August 16, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28813085/curcumin-decreases-astrocytic-reaction-after-gliotoxic-injury-in-the-rat-brainstem
#10
Eduardo Bondan, Carolina Cardoso, Maria de Fátima Martins
Recent studies have demonstrated that curcumin (Cur) has antioxidant, anti-inflammatory and anti-fibrotic effects. Ethidium bromide (EB) injections into the central nervous system (CNS) are known to induce local oligodendroglial and astrocytic loss, resulting in primary demyelination and neuroinflammation. Peripheral astrogliosis is seen around the injury site with increased immunoreactivity to glial fibrillary acidic protein (GFAP). This investigation aimed to evaluate the effect of Cur administration on astrocytic response following gliotoxic injury...
August 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28812474/protective-effect-of-raisin-currant-against-spatial-memory-impairment-and-oxidative-stress-in-alzheimer-disease-model
#11
Mohammad Gol, Davoud Ghorbanian, Nabiollah Soltanpour, Jamshid Faraji, Mohsen Pourghasem
OBJECTIVES: Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive pathological changes of the brain. A number of studies demonstrated compelling evidence of the importance of oxidative processes in AD pathogenesis. Raisin contains polyphenol, phenolic acid, and tannin compounds, which have antioxidant and anti-inflammatory properties. The present study was aimed to evaluate the protective effect of raisin on neurobehavioral and histological changes in rats with Alzheimer...
August 16, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28812384/identification-of-risk-factors-associated-with-postoperative-acute-kidney-injury-after-cytoreductive-surgery-with-hyperthermic-intraperitoneal-chemotherapy-a-retrospective-study
#12
Juan P Cata, Acsa M Zavala, Antoinette Van Meter, Uduak U Williams, Jose Soliz, Mike Hernandez, Pascal Owusu-Agyemang
BACKGROUND: Acute kidney injury (AKI) is a postoperative complication associated with significant morbidity and mortality. The incidence and risks factors for AKI after cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS-HIPEC) have not been fully studied. The purpose of this study was to identify perioperative risk factors predictive of AKI after CRS-HIPEC. METHODS: This retrospective study collected demographic, tumor-related, intraoperative and postoperative data from 475 patients who underwent CRS-HIPECs...
August 16, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28812311/nad-replenishment-with-nicotinamide-mononucleotide-protects-blood-brain-barrier-integrity-and-attenuates-delayed-tpa-induced-haemorrhagic-transformation-after-cerebral-ischemia
#13
Chun-Chun Wei, Yuan-Yuan Kong, Xia-Hua, Guo-Qiang Li, Si-Li Zheng, Ming-He Cheng, Pei Wang, Chao-Yu Miao
BACKGROUND AND PURPOSE: Tissue plasminogen activator (tPA) is the only approved pharmacological therapy for acute brain ischemia; however, a major limitation of tPA is the haemorrhagic transformation followed by tPA treatment. Here, we determine whether nicotinamide mononucleotide (NMN), a key intermediate of nicotinamide adenine dinucleotide biosynthesis, would affect tPA-induced haemorrhagic transformation. EXPERIMENTAL APPROACH: Middle cerebral artery occlusion (MCAO) was achieved in CD1 mice by introducing a filament to the left MCA for 5 hours...
August 15, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28812240/cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy-for-pseudomyxoma-peritonei-and-appendix-tumours-in-elderly-patients-is-it-justified
#14
V López-López, P A Cascales-Campos, E Gil, J Arevalo, A Gonzalez, J Gil, F C Muñoz-Casares, J T Melero, P Barrios, R Morales, I Ramos, G Ortega, B Camps, L González-Bayón, P Bretcha-Boix, J Farré-Alegre, S González-Moreno, P Parrilla
BACKGROUND: Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) for pseudomyxoma peritonei and appendix tumours are widespread in the world. It is unclear what should be the attitude in elderly patients. METHODS: This retrospective multicenter study collected the database from ten Spanish centers from Spanish Group of Peritoneal Cancer Surgery. The study period was between November 2002 and March 2014. Seventeen patients with age greater than or equal to 75 years with peritoneal carcinomatosis from pseudomyxoma peritonei and appendix tumours met the selection criteria for the study...
August 10, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28812173/melatonin-attenuates-pain-hypersensitivity-and-decreases-astrocyte-mediated-spinal-neuroinflammation-in-a-rat-model-of-oxaliplatin-induced-pain
#15
Ye-Song Wang, Yuan-Yuan Li, Wei Cui, Li-Bin Li, Zhao-Cai Zhang, Bao-Ping Tian, Gen-Sheng Zhang
Neuroinflammatory response in spinal dorsal horn has been demonstrated to be a critical factor in oxaliplatin-induced pain. Melatonin has been shown to have anti-inflammatory and anti-allodynia effects in both preclinical and clinical studies. In the present study, we investigated the role of systemic administration of melatonin on oxaliplatin-induced pain. Intraperitoneal (i.p.) injection with oxaliplatin induced significantly mechanical allodynia and thermal hyperalgesia. Melatonin (i.p.) significantly alleviated mechanical allodynia and thermal hyperalgesia in the oxaliplatin but not sham-treated rats...
August 15, 2017: Inflammation
https://www.readbyqxmd.com/read/28811797/ct-findings-and-features-of-postoperative-abdominal-infection-patients-with-pancreatic-carcinoma
#16
Yuzhuo Ma, Guangsheng Liu, Lingling Zhang
OBJECTIVE: To investigate the values of Computed Tomography (CT) in diagnosing postoperative pancreatic surgeryabdominalinfection and its efficacy and to provide a reasonable method for the diagnosis of abdominal infection. METHODS: Seventy-two patients who were confirmed as resectablepancreatic carcinoma by physical examination, CT, positron emission tomography (PET)/CT, endoscopic retrograde cholangiopancreatography (ER-CP), endoscopic ultrasonography and mesenteric angiography and were admitted to the Binzhou People's Hospital, Shandong, China, from July 2013 to July 2015 were randomly selected...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811460/prevention-of-atrial-fibrillation-by-using-sarcoplasmic-reticulum-calcium-atpase-pump-overexpression-in-a-rabbit-model-of-rapid-atrial-pacing
#17
Hong Li Wang, Xian Hui Zhou, Zhi Qiang Li, Ping Fan, Qi Na Zhou, Yao Dong Li, Yue Mei Hou, Bao Peng Tang
BACKGROUND Recent research suggests that abnormal Ca2+ handling plays a role in the occurrence and maintenance of atrial fibrillation (AF). Therefore, Ca2+ release and ingestion depend on properties of the ryanodine receptor (RyR) and sarcoplasmic reticulum Ca2+ATPase2a (SERCA2a). This study aimed to detect whether SERCA2a gene overexpression has a preventive effect on atrial fibrillation caused by rapid pacing right atrium. MATERIAL AND METHODS Forty-eight New Zealand white rabbits were randomly divided into a control group, AF group, AAV9/GFP group, and AAV9/SERCA2a group...
August 16, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28811141/the-pharmacokinetic-profile-of-synthetic-cathinones-in-a-pregnancy-model
#18
Lauren G Strange, Kerri Kochelek, Robert Keasling, Stacy D Brown, Brooks B Pond
In recent years, the abuse of synthetic cathinones or 'bath salts' has become a major public health concern. Although these compounds were initially sold legally and labeled "not for human consumption", the 'bath salts' are psychostimulants, with similar structures and pharmacologic mechanisms to cocaine, the amphetamines, and 3,4 methylendioxymethamphetamine (MDMA, Molly, or Ecstasy). The reported use of these substances by women of child-bearing age highlights the necessity of studies seeking to delineate risks of prenatal exposure...
August 12, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28810883/treatment-of-localized-gastric-and-gastroesophageal-adenocarcinoma-the-role-of-accurate-staging-and-preoperative-therapy
#19
REVIEW
Brian Badgwell, Prajnan Das, Jaffer Ajani
Gastric cancer is the third most common cause of cancer death worldwide, although it is not in the top 10 causes of cancer death in Northern America. Due to clear differences in incidence, screening, risk factors, tumor biology, and treatment between gastric cancers from Eastern and Western countries, our treatment is primarily guided by trials from Western countries. Patients undergo an extensive staging evaluation including high-quality CT imaging, endoscopic ultrasound, and diagnostic laparoscopy with peritoneal washings for cytology...
August 15, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28810692/resveratrol-protects-from-lipopolysaccharide-induced-inflammation-in-the-uterus-and-prevents-experimental-preterm-birth
#20
María Victoria Bariani, Fernando Correa, Emma Leishman, Ana Paula Domínguez Rubio, Andreína Arias, Aníbal Stern, Heather B Bradshaw, Ana María Franchi
STUDY QUESTION: Is resveratrol able to prevent the lipopolysaccharide (LPS)-induced preterm labor in 15-day pregnant BALB/c mice? SUMMARY ANSWER: Resveratrol prevented the LPS-induced onset of preterm labor in 64% of the cases and showed anti-inflammatory and tocolytic effects by downregulating COX-2 and iNOS expression and NOS activity, and by changing the uterine prostaglandin and endocannabinoid profiling. WHAT IS KNOWN ALREADY: Genital tract infections by Gram-negative bacteria are a common complication in human pregnancy and have been shown to increase risk of preterm delivery...
August 1, 2017: Molecular Human Reproduction
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