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https://www.readbyqxmd.com/read/28446013/the-in-vivo-effect-of-ytterbium-doped-fiber-laser-on-rat-buccal-mucosa-as-a-simulation-of-its-effect-on-the-urinary-tract-a-preclinical-histopathological-evaluation
#1
Songzhe Piao, Yue Wang, Young Ju Lee, Seungsoo Hong, Yoonchan Jeong, Seung-June Oh
PURPOSE: The aim of this study was to perform a histological analysis of the effect of a ytterbium-doped fiber (YDF) laser on oral buccal mucosa tissue in vivo to simulate its effect on the mucosa of the lower urinary tract. METHODS: A total of 90 8-week-old Sprague-Dawley rats were anesthetized with urethrane (1.2 g/kg intraperitoneally). A prespecified inner buccal mucosal site was irradiated with a YDF master-oscillator power amplifier (MOPA) system for 60 seconds, with output power settings of 0...
April 2017: International Neurourology Journal
https://www.readbyqxmd.com/read/28446004/conditioned-medium-derived-from-salidroside-pretreated-mesenchymal-stem-cell-culture-ameliorates-mouse-lipopolysaccharide-induced-cerebral-neuroinflammation-histological-and-immunohistochemical-study
#2
Zeinab M El Maadawi
Background and Objectives: Neuroinflammation is involved in the pathogenesis of neurodegenerative disorders. Conditioned medium (CM) derived from bone marrow mesenchymal stem cells (MSCs) revealed substantial benefits due to its rich content of trophic factors. Salidroside (Sal), extracted from Rhodiola rosea, is known for its anti-inflammatory and neuroprotective effects. This study was designed to investigate the effect of Sal pretreated CM (CM-Sal) derived from bone marrow MSCs in lipopolysaccharide (LPS) induced neuroinflammation...
April 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28445944/angiotensin-converting-enzyme-2-overexpression-protects-against-doxorubicin-induced-cardiomyopathy-by-multiple-mechanisms-in-rats
#3
Hui Ma, Jing Kong, Yu-Lin Wang, Jun-Long Li, Nai-Hao Hei, Xin-Ran Cao, Jing-Jing Yang, Wen-Jiang Yan, Wen-Jing Liang, Hong-Yan Dai, Bo Dong
Angiotensin-converting enzyme 2 (ACE2) is considered a potential therapeutic target of the renin-angiotensin system (RAS) for the treatment of cardiovascular diseases. We aimed to explore the effects of ACE2 overexpression on doxorubicin-induced cardiomyopathy in rats. Rats were randomly divided into treatment and control groups. The rats of treatment group were injected intraperitoneally with 6 doses of doxorubicin (2.5 mg/kg) within a period of two weeks. Two weeks after the initial injection of doxorubicin, these rats were randomly divided into Mock, Ad-EGFP, Ad-ACE2, and Cilazapril groups...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445933/the-long-noncoding-rna-hotair-promotes-parkinson-s-disease-by-upregulating-lrrk2-expression
#4
Sheng Wang, Xuan Zhang, Yuanyuan Guo, Han Rong, Tiebang Liu
Long noncoding RNAs (lncRNAs) have emerged recently as a new class of genes that regulate cellular processes. HOTAIR (Hox transcript antisense intergenic RNA), an approximately 2.2 kb long noncoding RNA transcribed from the HOXC locus, is upregulated in various diseases. However, the role of HOTAIR in Parkinson's disease (PD) remains unclear. A mouse model of PD was developed by intraperitoneal injection of MPTP. The expression of HOTAIR and LRRK2 were detected in the PD mice and in human neuroblastoma cell lines SH-SY5Y pretreated with MPP+...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445874/erythropoietin-treatment-exacerbates-moderate-injury-after-hypoxia-ischemia-in-neonatal-superoxide-dismutase-transgenic-mice
#5
R Ann Sheldon, Christine Windsor, Byong Sop Lee, Olatz Arteaga Cabeza, Donna M Ferriero
The neonatal brain is highly susceptible to oxidative stress as developing endogenous antioxidant mechanisms are overwhelmed. In the neonate, superoxide dismutase (SOD) overexpression worsens hypoxic-ischemic injury due to H2O2 accumulation in the brain. Erythropoietin (EPO) is upregulated in 2 phases after HI, early (4 h) and late (7 days), and exogenous EPO has been effective in reducing the injury, possibly through reducing oxidative stress. We hypothesized that exogenous EPO would limit injury from excess H2O2 seen in SOD1-overexpressing mice, and thus enhance recovery after HI...
April 27, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28445364/n-acetylcysteine-prevents-retrograde-motor-neuron-death-after-neonatal-peripheral-nerve-injury
#6
Joseph Catapano, Jennifer Zhang, David Scholl, Cameron Chiang, Tessa Gordon, Gregory H Borschel
BACKGROUND: Neuronal death may be an overlooked and unaddressed component of disability following neonatal nerve injuries, such as obstetric brachial plexus injury. N-acetylcysteine and acetyl-L-carnitine improve survival of neurons after adult nerve injury, but it is unknown whether they improve survival after neonatal injury, when neurons are most susceptible to retrograde neuronal death. The authors' objective was to examine whether N-acetylcysteine or acetyl-L-carnitine treatment improves survival of neonatal motor or sensory neurons in a rat model of neonatal nerve injury...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445099/laparoscopic-spigelian-hernia-repair-intraperitoneal-onlay-mesh-plus-technique-video-presentation
#7
Dimitrios Zacharoulis, Eleni Sioka
BACKGROUND: Spigelian hernia represents a rare entity. Traditionally, it was repaired by the open technique. Various laparoscopic techniques have emerged periodically. Most laparoscopic repairs use the technique of placing an intraperitoneal onlay mesh (IPOM). There is currently a tendency to close the hernia defect. METHODS: A 68-year-old man was admitted to our hospital complaining of vague abdominal pain and discomfort. Physical examination revealed a bulky palpable mass on the left side of the patient...
April 26, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28444763/manganese-concentration-mapping-in-the-rat-brain-with-mri-pet-and-autoradiography
#8
Geoffrey J Topping, Andrew Yung, Paul Schaffer, Cornelia Hoehr, Rick Kornelsen, Piotr Kozlowski, Vesna Sossi
PURPOSE: Mn(2+) is used a contrast agent and marker for neuronal activity with magnetic resonance imaging (MRI) in rats and mice, but its accumulation is generally not assessed quantitatively. In this work, non-radioactive Mn and (52) Mn are injected simultaneously in rats, and imaged with MRI, positron emission tomography (PET) and autoradiography (AR). Mn distributions are compared between modalities, to assess the potential and limitations on quantification of Mn with MRI, and to investigate the potential of multimodal measurement of Mn accumulation...
April 26, 2017: Medical Physics
https://www.readbyqxmd.com/read/28443914/probing-the-pharmacokinetics-of-cucurbit-7-8-and-10-uril-and-a-dinuclear-ruthenium-antimicrobial-complex-encapsulated-in-cucurbit-10-uril
#9
Fangfei Li, Anil K Gorle, Marie Ranson, Kara L Vine, Robert Kinobe, Marshall Feterl, Jeffrey M Warner, F Richard Keene, J Grant Collins, Anthony I Day
The relatively non-toxic family of cucurbit[n]uril, Q[n], have shown considerable potential in vitro as drug delivery agents, with only a few examples of pharmacokinetic (PK) studies for drug⊂Q[n]. Drug-free Q[n] PK studies are the next step in determining the pharmacological applicability in their drug delivery potential. The results for the first PK and bio-distribution of drug-free (14)C-Q[7] are described for administration via intravenous (i.v.) and intraperitoneal (i.p.) dosing. A study of oral administration of drug-free (14)C-Q[8] has also been undertaken to determine the time course for the gastrointestinal tract (GIT), absorption and subsequent bio-distribution...
April 26, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28443590/effects-of-apigenin-on-experimental-ischemia-reperfusion-injury-in-the-rat-ovary
#10
Zeynep Soyman, Sefa Kelekçi, Veysel Sal, Osman Şevket, Nihan Bayındır, Hafize Uzun
BACKGROUND: Apigenin, is a plant-derived compound belonging to flavone class, possess antioxidant, free radical scavenging and anti-inflammatory manners. AIMS: This paper aims to address effects of apigenin upon serum antimüllerian hormone (AMH) levels, tissue oxidative stress parameters and histopathological changes in ovarian ischemia/reperfusion (I/R) injury. STUDY DESIGN: Animal experiment. METHODS: Twenty eight female Wistar albino rats have been separated to four sections in a random way: Sham operation (Group 1), I/R plus saline (Group 2), I/R plus dimethyl sulfoxide (Group 3) and I/R plus apigenin (Group 4)...
April 13, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28443482/subarachnoid-and-intraperitoneal-hemorrhage-secondary-to-segmental-arterial-mediolysis-a-case-report-and-review-of-the-literature
#11
Brian T Welch, Waleed Brinjikji, Andrew H Stockland, Giuseppe Lanzino
Background Segmental arterial mediolysis (SAM) is an uncommon or underdiagnosed arteriopathy that presents with life-threatening hemorrhage. SAM can affect the intracranial, spinal, and visceral arteries, with reported cases of concomitant intracranial and visceral hemorrhage. Case description We present the case of a 61-year-old male with concurrent subarachnoid and intraperitoneal hemorrhage caused by simultaneously bleeding posterior spinal artery and splenic artery pseudoaneurysms. The posterior spinal artery pseudoaneurysms were treated with selective injection of polyvinyl alcohol particles into the posterior spinal artery, while the splenic artery pseudoaneurysm was treated with Gelfoam embolization...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28442833/a-randomised-prospective-study-to-evaluate-preperitoneal-mesh-repair-versus-onlay-mesh-repair-and-laparoscopic-ipom-in-incisional-hernia-surgery
#12
S Natarajan, S Meenaa, K A Thimmaiah
Incisional hernia remains a very common postoperative complication. These are encountered with an incidence of up to 20 % following laparotomy. These hernias enlarge over time, making the repair difficult, and serious complications like bowel obstruction, strangulation and enterocutaneous fistula can occur. Hence, elective repair is indicated to avoid these complications. Implantation of a prosthetic mesh is nowadays considered as the standard treatment due to low hernia recurrence. The most common mesh repair techniques used are the onlay repair, sublay repair and laparoscopic intraperitoneal onlay mesh (IPOM)...
April 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28442444/hydrogen-sulfide-ameliorates-prenatal-cigarette-smoke-exposure-induced-impairment-of-respiratory-responses-to-hypercapnia-in-neonatal-rats
#13
Senfeng Zhang, Fang Lei, Fusheng Zhao, Xiang Yan, Wen Wang, Yu Zheng
The present study was designed to investigate whether H2S could improve the respiratory responses to hypercapnia blunted by prenatal CSE in neonatal rats in vivo. Respiratory activities were recorded with head-out body plethysmography. The results showed that during baseline, respiratory frequency (FR), tidal volume (VT) and minute ventilation (VE) were similar among tested groups; frequency of spontaneous apnea (FSA), not post-sigh apnea (FPA), was significantly elevated by prenatal CSE. During hypercapnia, the increases in FR and VE were significantly reduced, but VT was not markedly different, in CSE group; both FSA and FPA were decreased, although FSA remained higher in CSE group...
April 22, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28442324/the-interactive-role-of-cb1-receptors-and-l-type-calcium-channels-in-hippocampal-long-term-potentiation-in-rats
#14
Hamidreza Komaki, Fargol Saadat, Siamak Shahidi, Abdolrahman Sarihi, Parisa Hasanein, Alireza Komaki
'Long-term potentiation (LTP) of synaptic responses is a widely researched model of synaptic plasticity that occurs during learning and memory. The cannabinoid system is an endogenous system that modulate this kind of synaptic plasticity. In addition, voltage dependent calcium channels is essential for induction of LTP at some synapses in the hippocampus. However, there is currently debate over the interaction between L-type calcium channels and cannabinoid system on the synaptic plasticity. In this study, we examined the effects of an acute administration of the cannabinoid antagonist AM251 following a chronic administration of the Ca(2+) channel blocker verapamil on LTP induction in the hippocampal dentate gyrus(DG) of rats...
April 22, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28441905/dopamine-dysregulation-in-the-prefrontal-cortex-relates-to-cognitive-deficits-in-the-sub-chronic-pcp-model-for-schizophrenia-a-preliminary-investigation
#15
Samantha L McLean, Michael K Harte, Joanna C Neill, Andrew Mj Young
RATIONALE: Dopamine dysregulation in the prefrontal cortex (PFC) plays an important role in cognitive dysfunction in schizophrenia. Sub-chronic phencyclidine (scPCP) treatment produces cognitive impairments in rodents and is a thoroughly validated animal model for cognitive deficits in schizophrenia. The aim of our study was to investigate the role of PFC dopamine in scPCP-induced deficits in a cognitive task of relevance to the disorder, novel object recognition (NOR). METHODS: Twelve adult female Lister Hooded rats received scPCP (2 mg/kg) or vehicle via the intraperitoneal route twice daily for 7 days, followed by 7 days washout...
April 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28441888/doxorubicin-induced-female-reproductive-toxicity-an-assessment-of-ovarian-follicular-apoptosis-cyclicity-and-reproductive-tissue-histology-in-wistar-rats
#16
Kumari Nishi, Vinoth Prasanna Gunasekaran, Jaganath Arunachalam, Mathan Ganeshan
Doxorubicin is a widely used chemotherapeutic agent for various cancers, particularly for the female breast cancer patients. Although the rate of young female cancer patients is increasing every year, conversely the lack of knowledge of adverse effects of doxorubicin on female reproductive system insisted us to assess the toxic effects of doxorubicin on the female reproductive tissue histoarchitecture, cyclicity, and mammary glands in Wistar rats. The rats were divided into two groups depending on the treatment period, i...
April 25, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/28441841/-an-experiment-control-study-on-the-ovarian-reserve-function-after-cisplatin-intraperitoneal-or-intravenous-chemotherapy-in-rats-model
#17
B Z Fan, H Xia, L Chu, X W Tong
Objective: To compare the impact on the ovarian reserve function after cisplatin intraperitoneal or intravenous chemotherapy in rats model. Methods: Thirty 8-weeks old female Sprague Dawley rats were randomly assigned to control group (group A, n=10), intraperitoneal chemotherapy group (group B, n=10) and intravenous chemotherapy group (group C, n=10). Cisplatin was diluted by normal saline (NS) into 4 mg/ml. On the first day of chemotherapy, 0.2 ml cisplatin dilution was injected into the abdomen of rats in group B, isodose cisplatin was injected into vein and 1...
April 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28441250/a-comparison-of-survival-outcomes-in-advanced-serous-ovarian-cancer-patients-treated-with-primary-debulking-surgery-versus-neoadjuvant-chemotherapy
#18
Taymaa May, Robyn Comeau, Ping Sun, Joanne Kotsopoulos, Steven A Narod, Barry Rosen, Prafull Ghatage
OBJECTIVE: The management of women with advanced-stage serous ovarian cancer includes a combination of surgery and chemotherapy. The choice of treatment with primary debulking surgery or neoadjuvant chemotherapy varies by institution. The objective of this study was to report 5-year survival outcomes for ovarian cancer patients treated at a single institution with primary debulking surgery or neoadjuvant chemotherapy. METHODS: This study included a retrospective chart review of 303 patients with stage IIIC or IV serous ovarian carcinoma diagnosed in Calgary, Canada...
May 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28440447/anti%C3%A2-inflammatory-effects-of-oxymatrine-on-rheumatoid-arthritis-in-rats-via-regulating-the-imbalance-between-treg-and-th17-cells
#19
Ailing Ma, Yongya Yang, Qiuyang Wang, Yin Wang, Jing Wen, Yanli Zhang
Oxymatrine (OMT), a monosomic alkaloid extracted from the Chinese herb, Sophora flavescens Ait, has long been used as a traditional Chinese medicine for the treatment of inflammatory diseases. The aim of the present study was to investigate the potential anti‑inflammatory effect of OMT, and its modulation on imbalance between regulatory T (Treg) cells and T helper (Th) 17 cells in rats with collagen‑induced arthritis (CIA). Sprague‑Dawley rats were immunized with type II collagen and following a second collagen immunization, the rats were treated with OMT or dexamethasone (DXM) intraperitoneally once a day for 43 days...
April 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440200/effect-of-halofuginone-on-the-pathogenesis-of-autoimmune-thyroid-disease-in-different-mice-models
#20
Xin Hou, Jin Zhou, Rong Yang, Shanshan Liu, Mei Bi, Tong Liu, Chenling Fan, Haixia Guan, Yushu Li, Zhongyan Shan, Weiping Teng
OBJECTIVE: Our objectives were to investigate the therapeutic effect of halofuginone (HF) in the treatment of autoimmune thyroid diseases (AITDs) and explore its underlying mechanism of action. METHODS: The Graves' disease (GD) model was generated by immunizing female BALB/c mice with adenovirus expressing the TSH receptor A subunit (Ad-TSHR289). The Ad-TSHRA+HF and Ad-TSHRA+DMSO groups were injected intraperitoneally with HF or the vehicle control (DMSO), respectively...
April 23, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
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