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https://www.readbyqxmd.com/read/28107590/endocannabinoid-activation-of-cb1-receptors-contributes-to-long-lasting-reversal-of-neuropathic-pain-by-repetitive-spinal-cord-stimulation
#1
L Sun, L Tai, Q Qiu, R Mitchell, S Fleetwood-Walker, E A Joosten, C W Cheung
BACKGROUND: Spinal cord stimulation (SCS) has been shown to be effective in the management of certain neuropathic pain conditions, however, the underlying mechanisms are incompletely understood. In this study, we investigated repetitive SCS in a rodent neuropathic pain model, revealing long-lasting and incremental attenuation of hyperalgesia and a mechanism of action involving endocannabinoids. METHOD: Animals were implanted with monopolar electrodes at the time of partial sciatic nerve injury...
January 20, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28107353/weight-perturbation-alters-leptin-signal-transduction-in-a-region-specific-manner-throughout-the-brain
#2
Michael V Morabito, Yann Ravussin, Bridget R Mueller, Alicja A Skowronski, Kazuhisa Watanabe, Kylie S Foo, Samuel X Lee, Anders Lehmann, Stephan Hjorth, Lori M Zeltser, Charles A LeDuc, Rudolph L Leibel
Diet-induced obesity (DIO) resulting from consumption of a high fat diet (HFD) attenuates normal neuronal responses to leptin and may contribute to the metabolic defense of an acquired higher body weight in humans; the molecular bases for the persistence of this defense are unknown. We measured the responses of 23 brain regions to exogenous leptin in 4 different groups of weight- and/or diet-perturbed mice. Responses to leptin were assessed by quantifying pSTAT3 levels in brain nuclei 30 minutes following 3 mg/kg intraperitoneal leptin...
2017: PloS One
https://www.readbyqxmd.com/read/28107310/the-renin-inhibitor-aliskiren-protects-rat-lungs-from-the-histopathologic-effects-of-fat-embolism
#3
Amanda N Fletcher, Agostino Molteni, Rakesh Ponnapureddy, Chirag Patel, Mark Pluym, Alan M Poisner
BACKGROUND: Fat embolism (FE) and the consequent FE syndrome occurring after trauma or surgery can lead to serious pulmonary injury, including ARDS and death. Current treatment of FE syndrome is limited to supportive therapy. We have shown in a rat model that the renin angiotensin system plays a significant role in the pathophysiology of FE because drugs interfering with the renin angiotensin system, captopril and losartan reduce the histopathologic pulmonary damage. The purpose of the current study was to determine if inhibition of renin by aliskiren, an FDA-approved drug for treating hypertension, would produce effective protection in the same model...
February 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28106785/ketamine-analog-methoxetamine-induced-inflammation-and-dysfunction-of-bladder-in-rats
#4
Qiang Wang, Qinghui Wu, Junpeng Wang, Yang Chen, Guihao Zhang, Jiawei Chen, Jie Zhao, Peng Wu
The novel synthetic psychoactive ketamine analog methoxetamine is reportedly being used for recreational purposes. As ketamine use can result in urinary dysfunction, we conducted the present study to investigate how methoxetamine affects the bladder. A cystometry investigation showed that female Sprague-Dawley rats experienced increased micturition frequency bladder dysfunction after receiving a daily intraperitoneal injection of 30 mg/kg methoxetamine or ketamine for periods of 4 or 12 weeks. Histologic examinations of rat bladder tissue revealed damaged urothelium barriers, as well as evidence of inflammatory cell infiltration and matrix deposition...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106285/inhibition-of-immune-responses-and-related-proteins-in-rhamdia-quelen-exposed-to-diclofenac
#5
João L C Ribas, James P Sherry, Aleksander R Zampronio, Helena C Silva de Assis, Denina B D Simmons
Non-steroidal anti-inflammatory drugs (NSAIDs) are among the most widely detected pharmaceuticals in surface water worldwide. The NSAID diclofenac is used to treat many types of pain and inflammation. Diclofenac's potential to cause adverse effects in exposed wildlife is a growing concern. To evaluate the effects of waterborne diclofenac on the immune response in Rhamdia quelen (South American Catfish), fish were exposed to three concentrations of diclofenac (0.2, 2.0, and 20.0 µg/L) for 14 days. Some of the exposed fish were also given an intraperitoneal injection on day 14 of 1 mg/kg of carrageenan to evaluate cell migration to the peritoneum...
January 20, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28105981/cryopreservation-of-hepatocyte-microbeads-for-clinical-transplantation
#6
Suttiruk Jitraruch, Anil Dhawan, Robin D, Celine Filippi, Sharon C, Leanne Glover, Ragai R
Intraperitoneal transplantation of hepatocyte microbeads is an attractive option for the management of acute liver failure. Encapsulation of hepatocytes in alginate microbeads supports their function and prevents immune attack of the cells. Establishment of banked cryopreserved hepatocyte microbeads is important for emergency use. The aim of this study was to develop an optimised protocol for cryopreservation of hepatocyte microbeads for clinical transplantation using modified freezing solutions. Four freezing solutions with potential for clinical application were investigated...
January 20, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28105567/effects-of-oleuropein-on-pentylenetetrazol-induced-seizures-in-mice-involvement-of-opioidergic-and-nitrergic-systems
#7
Nastaran Rahimi, Bahram Delfan, Nazgol Motamed-Gorji, Ahmad R Dehpour
Oleuropein, a well-known olive polyphenol, has been shown to mediate neuroprotection in Alzheimer's disease and cerebral ischemia. We investigated the effects of oleuropein on pentylenetetrazole (PTZ)-induced seizures in male NMRI mice, with diazepam as the standard drug. We also examined the possible involvement of opioidergic/nitrergic pathways in the probable effects of oleuropein. Intraperitoneal (i.p.) administration of different doses of oleuropein (10, 20 and 30 mg/kg) significantly increased the seizure threshold 60 min prior to induction of seizure, in a dose-dependent manner...
January 19, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28105490/the-effect-of-dexpanthenol-on-experimentally-induced-ovarian-ischaemia-reperfusion-injury-a-biochemical-and-histopathological-evaluation
#8
Oya Soylu Karapinar, Neslihan Pinar, Oğuzhan Özcan, Esin Atik Doğan, Suphi Bayraktar, Hanifi Şahin, Kenan Dolapçioğlu
OBJECTIVE: The aim of this study was to evaluate the effect of two different doses of dexpanthenol (Dxp) onexperimentally induced ovarian ischaemia/reperfusion (I/R) injury ina rat model. STUDY DESIGN: Forty female rats were randomly divided into fivegroups: Group 1: sham operation; Group 2: 3-h ischaemia; Groups 3: 3-h ischaemia, 3-h reperfusion (I/R); Group 4: I/R + 300 mg/kg Dxp intraperitoneally (i.p) Group 5: I /R + 500 mg/kg Dxpi.p. Total anti-oxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI), tissue malondialdehyde (MDA) and activities of glutathione peroxidase and catalase were calculated...
January 20, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28105356/conversion-therapy-for-pancreatic-cancer-with-peritoneal-metastases-using-intravenous-and-intraperitoneal-paclitaxel-with-s-1
#9
Hiromitsu Kitayama, Yasushi Tsuji, Tomohiro Kondo, Junko Sugiyama, Michiaki Hirayama, Kazuyuki Yamamoto, You Kawarada, Yumiko Oyamada, Satoshi Hirano
Combination chemotherapy consisting of systemic and intraperitoneal agents against peritoneal metastases from several types of cancer has shown promising results. We herein report a case in which combination therapy with intravenous and intraperitoneal paclitaxel with S-1 converted an unresectable pancreatic cancer with peritoneal metastases into a resectable one. The patient was a 65-year old woman with recurrent pancreatitis for 5 months. Endoscopic ultrasonography-guided fine-needle aspiration revealed minute epithelial masses composed of cells with irregular nuclei in the pancreatic body...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28105352/conversion-therapy-of-gastric-cancer-with-massive-malignant-ascites-and-ovarian-metastases-by-systemic-and-intraperitoneal-chemotherapy
#10
Tomohiro Kondo, Hiromitsu Kitayama, Junko Sugiyama, Michiaki Hirayama, Yoshinori Suzuki, Yumiko Oyamada, Yasushi Tsuji
Intravenous and intraperitoneal paclitaxel with S-1 is showing promising results in gastric cancer with peritoneal metastases. We herein report a successful conversion of unresectable to resectable disease using combination chemotherapy with trastuzumab. The patient was a 39-year-old woman with human epidermal growth factor receptor 2-positive gastric cancer with peritoneal, pulmonary and bilateral ovarian metastases. After 6 cycles of S-1 plus cisplatin with trastuzumab, followed by 15 cycles of intravenous and intraperitoneal paclitaxel with S-1 and trastuzumab, the pulmonary and peritoneal metastases exhibited complete response and no evidence of malignancy was found on diagnostic laparoscopy...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28105099/lamotrigine-decreases-mrp8-and-il-7-in-rat-models-of-intractable-epilepsy-secondary-to-focal-cortical-dysplasia
#11
Jianping Wei, Qingmei Nie, Feng Li
The aim of the present study was to examine the effect of lamotrigine and the expression of myeloid-related protein 8 (MRP8) and interleukin-7 (IL-7) in the treatment of focal cortical dysplasia with secondary intractable epilepsy. In this study, rats with focal cortical dysplasia with secondary intractable epilepsy (constructed by our laboratory) were selected and used for experimentation, 21-day Sprague-Dawley rats were randomly divided into the control group (38 rats), the observation group I (39 rats), and the observation group II (38 rats)...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28105085/effects-of-shen-an-granules-on-wnt-signaling-pathway-in-mouse-models-of-diabetic-nephropathy
#12
Xin-Rong Zou, Xiao-Qin Wang, Ying-Lin Hu, Hui-Lan Zhou
The effect of Shen'an granules on the Wnt signaling pathway in renal tissues of mouse models of streptozotocin (STZ)-induced diabetic nephropathy was investigated in the present study. A total of 62 BALB/c mice were randomly divided into the normal control (A group), model (B group), losartan (C group), low-dose Shen'an granules (D group), and high-dose Shen'an granules (E group) groups. The mouse model of diabetic nephropathy was established by a single intraperitoneal injection of STZ (150 mg/kg). The animals were treated with drugs for 8 weeks, and blood creatinine, blood urea nitrogen, triglycerides (TG), and total cholesterol (CHOL) were measured prior to and after treatment...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28104349/ilexgenin-a-a-novel-pentacyclic-triterpenoid-extracted-from-aquifoliaceae-shows-reduction-of-lps-induced-peritonitis-in-mice
#13
Weidong Sun, Chang Liu, Yaqi Zhang, Xia Qiu, Li Zhang, Hongxia Zhao, Yi Rong, Yun Sun
Ilexgenin A (IA) is a novel pentacyclic triterpenoid, which extracted from leaves of Ilex hainanensis Merr. In the present study, we aim to explore anti-inflammatory activity of IA on LPS-induced peritonitis and its underlying molecular mechanism. The results determined that IA was capable of suppressing peritonitis in mice induced by intraperitoneal (i.p.) injection of lipopolysaccaride (LPS). Furthermore, the results showed that IA dramatically inhibited levels of inflammatory cells infiltration in peritoneal cavity and serum in LPS-induced mice peritonitis model...
January 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28104348/quercetin-protects-against-heat-stroke-induced-myocardial-injury-in-male-rats-antioxidative-and-antiinflammatory-mechanisms
#14
Xiaojing Lin, Cheng-Hsien Lin, Tingbao Zhao, Dan Zuo, Zhujun Ye, Lin Liu, Mao-Tsun Lin
Heat stroke is characterilized by hyperthermia, systemic inflammation, and multiple organ failure including arterial hypotension. This definition can be fulfilled by a rat model of heat stroke used in the present study. Anesthetized animals were exposed to heat exposure (43 °C for 70 min) and then returned to room temperature (26 °C) for recovery. One hour before heat exposure, an intraperitoneal dose of quercetin (30 mg/kg) or vehicle (normal saline 1 ml/kg) was administered to the experimental groups of rats...
January 16, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28103957/rna-interference-mediated-knockdown-of-brugia-malayi-udp-galactopyranose-mutase-severely-affects-parasite-viability-embryogenesis-and-in-vivo-development-of-infective-larvae
#15
Sweta Misra, Jyoti Gupta, Shailja Misra-Bhattacharya
BACKGROUND: Galactofuranose is an essential cell surface component present in bacteria, fungi and several nematodes such as Caenorhabditis spp., Brugia spp., Onchocerca spp. and Strongyloides spp. This sugar maintains the integrity of parasite surface and is essential for virulence. UDP-Galactopyranose mutase (bmugm) plays a key role in Galf biosynthesis by catalyzing conversion of UDP-Galactopyranose into UDP-galactofuranose and knockout studies of the gene in Leishmania major, Mycobacterium and Aspergillus fumigatus displayed attenuated virulence while RNA interference study in C...
January 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28103503/sedative-hypnotic-like-effect-and-molecular-docking-of-di-naphthodiospyrol-from-diospyros-lotus-in-an-animal-model
#16
Abdur Rauf, Taibi Ben Hadda, Ghias Uddin, José P Cerón-Carrasco, Jorge Peña-García, Horacio Pérez-Sánchez, Haroon Khan, Saud Bawazeer, Seema Patel, Mohammad S Mubarak, Tareq Abu-Izneid, Yahia Nasser Mabkhot
BACKGROUND: Diospyros lotus Linn commonly known as date-plum, or Caucasian persimmon has multiple uses in folk medicine. Various parts of this plant is used for alleviating lumbago, dysponea, hemorrhage, insomnia, and hiccup. The plant extracts possess a variety of biological activities, such as anti-inflammatory, sedative, febrifuge, anti-microbial, vermifuge, and anti-hypertensive. AIM/HYPOTHESIS: The aim of the present work is to investigate the sedative-hypnotic effect of a rare dimeric napthoquione 1 obtained from the chloroform soluble fraction of D...
January 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28103292/muscle-reactive-oxygen-species-ros-contribute-to-post-incisional-guarding-via-the-trpa1-receptor
#17
Daisuke Sugiyama, Sinyoung Kang, Timothy J Brennan
BACKGROUND: Deep tissues and their afferents have unique responses to various stimuli and respond to injury distinctively. However, the types of receptors and endogenous ligands that have a key role in pain after deep tissue incision are unknown. TRPA1 has been shown to mediate pain-related responses in inflammation- and nerve injury-induced pain models. We hypothesized that TRPA1 has an important role in pain behaviors after deep tissue incision. METHODS: The effect of various doses of intraperitoneal (i...
2017: PloS One
https://www.readbyqxmd.com/read/28102474/anti-amnestic-effect-of-curcumin-in-combination-with-donepezil-an-anticholinesterase-drug-involvement-of-cholinergic-system
#18
Ayodele Jacob Akinyemi, Ganiyu Oboh, Sunday Idowu Oyeleye, Opeyemi Ogunsuyi
Recently, combination therapy involving cholinesterase (ChE) inhibitor with other neuroprotective agents has shown better desirable effect in the management/prevention of dementia but limited information is available on their effect with dietary polyphenols. Hence, this study sought to assess the combined pretreatment effect of curcumin, the major polyphenolic compound of turmeric (Curcuma longa) rhizomes, with donepezil, a cholinesterase inhibitor, on cognitive function in scopolamine-induced memory impairment in rats...
January 19, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28102089/disulfiram-moderately-restores-impaired-hepatic-redox-status-of-rats-subchronically-exposed-to-cadmium
#19
Aida Begic, Ana Djuric, Milica Ninkovic, Ivana Stevanovic, Dragan Djurdjevic, Milos Pavlovic, Katarina Jelic, Ana Pantelic, Goran Zebic, Bratislav Dejanovic, Ivan Stanojevic, Danilo Vojvodic, Petar Milosavljevic, Mirjana Djukic, Luciano Saso
Examination of cadmium (Cd) toxicity and disulfiram (DSF) effect on liver was focused on oxidative stress (OS), bioelements status, morphological and functional changes. Male Wistar rats were intraperitoneally treated with 1 mg CdCl2/kg BW/day; orally with 178.5 mg DSF/kg BW/day for 1, 3, 10 and 21 days; and co-exposed from 22nd to 42nd day. The co-exposure nearly restored previously suppressed total superoxide dismutase (SOD), catalase (CAT) and increased glutathione peroxidase (GPx) activities; increased previously reduced glutathione reductase (GR) and total glutathione-S-transferase (GST) activities; reduced previously increased superoxide anion radical (O2(·-)) and malondialdehyde (MDA) levels; increased zinc (Zn) and iron (Fe), and decreased copper (Cu) (yet above control value), while magnesium (Mg) was not affected; and decreased serum alanine aminotransferases (ALT) levels...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28102058/neonatal-immune-state-is-influenced-by-maternal-allergic-rhinitis-and-associated-with-regulatory-t-cells
#20
Lu Tan, Jing Ou, Zezhang Tao, Yonggang Kong, Yu Xu
PURPOSE: Maternal influences contribute to the origin of allergic diseases, but the mechanisms are not clear. The current literature prompted the role of epigenetics in the development of allergic diseases. We sought to investigate the roles of regulatory T (Treg) cells and Forkhead box p3 (Foxp3) DNA methylation in the process of maternal transmission of allergic rhinitis (AR) susceptibility. METHODS: BALB/c female mice (AR mother) were sensitized by intraperitoneal injection of Dermatophagoides pteronyssinus (Der p) 1 on day 1 and 7...
March 2017: Allergy, Asthma & Immunology Research
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