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https://www.readbyqxmd.com/read/29775895/ozone-therapy-prevents-the-onset-of-dysplasia-in-hpv16-transgenic-mice-a-pre-clinical-efficacy-and-safety-analysis
#1
C Peirone, V F Mestre, B Medeiros-Fonseca, B Colaço, M J Pires, T Martins, R M Gil da Costa, M J Neuparth, R Medeiros, M M S M Bastos, J A Marques-Magallanes, P A Oliveira
Infection with high-risk human papillomavirus (HPV), most often HPV16, is associated with the development of anogenital and oropharyngeal cancers. Recently, ozone therapy was reported to have considerable efficacy against rabbit VX2 tumors, induced by the cottontail rabbit papillomavirus. The present study aims to determine whether similar results can be obtained in HPV16-transgenic mice, possibly paving the way for new therapeutic options against HPV-induced cancers. HPV16-transgenic and wild-type, female, 20 weeks-old mice were injected intraperitoneally with medical O3 /O2 (80░mL/kg, at O3 50░μg/mL), once a day, for 5 consecutive days...
May 15, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29775826/atypical-virulence-in-a-type-iii-toxoplasma-gondii-strain-isolated-in-japan
#2
Yuji Taniguchi, Cornelia Appiah-Kwarteng, Mami Murakami, Junpei Fukumoto, Kisaburo Nagamune, Tomohide Matsuo, Tatsunori Masatani, Hirotaka Kanuka, Tokio Hoshina, Katsuya Kitoh, Yasuhiro Takashima
The virulence of a type III Toxoplasma gondii strain isolated in Japan and designated here as TgCatJpGi1/TaJ was examined in mice and micro minipigs in this study. Despite its type III genotype, oral or intraperitoneal inoculation of cysts from it resulted in severe virulence in C57BL/6J and BALB/c mice. In contrast, mice inoculated with a high dose of TgCatJpGi1/TaJ tachyzoites showed no obvious clinical signs of infection, and all of them survived for >21 days post-inoculation. Furthermore, no clinical signs of infection were seen when micro minipigs were inoculated with 900 cysts...
May 15, 2018: Parasitology International
https://www.readbyqxmd.com/read/29775777/antidepressant-potential-of-novel-flavonoids-derivatives-from-sweet-violet-viola-odorata-l-pharmacological-biochemical-and-computational-evidences-for-possible-involvement-of-serotonergic-mechanism
#3
Nasiara Karim, Imran Khan, Abeer Abdelhalim, Ajmal Khan, Sobia Ahsan Halim
Plant-derived natural constituents are of great interest in modern drug discovery due to their natural diversity. Viola odorata L has been traditionally used for the treatment of neuropsychiatric disorders. The present study was undertaken to isolate phytoconstituents including three flavonoids 5,7-Dihydroxy-3,6-dimethoxyflavone[1] 5,7,4'-trihydroxy-3',5'dimethoxyflavone [2] and 5,7,4'-trihydroxy-3'-methoxyflavone [3] from the whole plant of Viola odorata L and to investigate the antidepressant-like effects of these compounds and their possible mechanism of action using antagonists of the serotonergic, dopaminergic and adrenergic system...
May 15, 2018: Fitoterapia
https://www.readbyqxmd.com/read/29775741/replacement-of-fishmeal-by-spirulina-arthrospira-platensis-affects-growth-immune-related-gene-expression-in-gibel-carp-carassius-auratus-gibelio-var-cas-iii-and-its-challenge-against-aeromonas-hydrophila-infection
#4
Shenping Cao, Peiyu Zhang, Tao Zou, Shuzhan Fei, Dong Han, Junyan Jin, Haokun Liu, Yunxia Yang, Xiaoming Zhu, Shouqi Xie
The present study examined the effect of dietary spirulina, Arthrospira platensis on growth performance, blood physiological indices, immune-related gene expressions and resistance of juvenile gibel carp against Aeromonas hydrophila infection. Four isonitrogenous (360 g kg-1 ) and isolipidic (90 g kg-1 ) diets were formulated with containing different levels of spirulina powder of 0 g (SP0, the control diet), 3.38 g (SP3.38), 6.76 g (SP6.76) and 13.52 g (SP13.52) per 100 g diet to replace 0%, 25%, 50% and 100% of fishmeal protein, respectively...
May 15, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29775647/exposure-to-imipenem-cilastatin-causes-nephrotoxicity-and-even-urolithiasis-in-wistar-rats
#5
Amal Tahri, Amina Lahyani, Rim Kallel, Fatma Ayadi, Tahia Boudawara, Zouheir Sahnoun
Imipenem/cilastatin is a broad-spectrum β-lactam antibiotic used to treat several bacterial infections. The present study was designed to validate the nephrotoxic effect of this drug in rats and to explore its potentional urolithiatic effect. Thirty two Wistar rats were randomly divided into four groups: three experimental groups treated with different imipenem/cilastatin dosages (30, 50 and 80 mg/kg/day) and a control group.The experimental groups were given intraperitoneal imipenem/cilastatin injections twice daily for 7 days, and the control group was given intraperitoneal vehicle NaCl 0...
May 15, 2018: Toxicology
https://www.readbyqxmd.com/read/29775631/effect-of-central-injection-of-tumor-necrosis-factor-like-cytokine-1a-and-interferons-on-food-intake-in-chicks
#6
Tetsuya Tachibana, Yoko Ishimaru, Ryosuke Makino, Sakirul Islam Khan, Mark A Cline
In mammals, anorexia accompanying infection is thought to be mediated via cytokines including interleukins, interferons (IFNs), and tumor necrosis factor (TNF). However, there is a lack of related knowledge on birds. Therefore, the purpose of the present study was to determine if cytokines are associated with reduced food intake in chicks (Gallus gallus). Specifically, we evaluated the effects of TNF-like cytokine 1A (TL1A), a member of the TNF family, interferon-α (IFN-α), and interferon-γ (IFN-γ) on food intake...
May 15, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29775598/selective-cytotoxicity-of-the-nampt-inhibitor-fk866-toward-gastric-cancer-cells-with-markers-of-the-epithelial-mesenchymal-transition-due-to-loss-of-naprt
#7
Jooyoung Lee, Hyosil Kim, Jae Eun Lee, Su-Jin Shin, Sejin Oh, Sungjin Kwon, Hakhyun Kim, Yoon Young Choi, Michael A White, Soonmyung Paik, Jae-Ho Cheong, Hyun Seok Kim
BACKGROUND & AIMS: Markers of the epithelial-mesenchymal transition (EMT) in gastric tumor tissues are associated with poor outcomes of patients. We performed a screen to identify pharmacologic compounds that kill gastric cancer cells with EMT-associated gene expression patterns and investigate their mechanisms. METHODS: We identified 29 gastric cancer cell lines with gene expression signature previously associated with an EMT subtype, based on data from RNA sequence analyses, and confirmed their mesenchymal phenotypes of 7 lines (Hs746T, SNU1750, MKN1, SK4, SNU484, SNU668, and YCC11), based in invasive activity and protein markers...
May 15, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29775565/a-role-of-neuropeptide-cart-in-hyperphagia-and-weight-gain-induced-by-olanzapine-treatment-in-rats
#8
Kartik T Nakhate, Nishikant K Subhedar, Dadasaheb M Kokare
Although olanzapine is highly efficacious and most widely used second generation antipsychotic drug, the success of treatment has been hampered by its propensity to induce weight gain. While the underlying neuronal mechanisms are unclear, their elucidation may help to target alternative pathways regulating energy balance. The present study was undertaken to define the role of cocaine- and amphetamine-regulated transcript (CART), a well-known anorexic peptide, in olanzapine-induced hyperphagia and body weight gain in rats...
May 15, 2018: Brain Research
https://www.readbyqxmd.com/read/29775411/humanin-analogue-hng-enhances-the-protective-effect-of-dexrazoxane-against-doxorubicin-induced-cardiotoxicity
#9
YanHe Lue, Chen Gao, Ronald S Swerdloff, James Hoang, Rozeta Avetisyan, Yue Jia, Meng Rao, Shuxun Ren, Vince Atienza, Junyi Yu, Yie Zhang, Mengping Chen, Yang Song, Yibin Wang, Christina Wang
The chemotherapeutic effect of Doxorubicin (Dox) is limited by cumulative dose-dependent cardiotoxicity in cancer survivors. Dexrazoxane (DRZ) is approved to prevent Dox-induced cardiotoxicity. Humanin and its synthetic analog HNG have cytoprotective effect on the heart. To investigate the cardioprotective efficacy of HNG alone or in combination with DRZ against Dox-induced cardiotoxicity, eighty adult male mice were randomly divided into 8 groups to receive the following treatments via intraperitoneal injection: saline daily; HNG (5mg/kg) daily; DRZ (60mg/kg) weekly; Dox (3mg/kg) weekly; DRZ+HNG, Dox+HNG; Dox+DRZ and Dox+HNG+DRZ...
May 18, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29775228/uroprotective-mechanism-of-quercetin-against-cyclophosphamide-induced-urotoxicity-effect-on-oxidative-stress-and-inflammatory-markers
#10
Iman O Sherif
The urotoxicity is a common complication associated with patients receiving cyclophosphamide (CYP). This study was designed to investigate the uroprotective mechanism of quercetin (Quer) flavonoid against CYP induced urotoxicity via determination of oxidative stress markers as well as inflammatory mediators in bladder tissue. Forty male Wistar rats were divided into four groups; Normal group: received saline for 10 days. Quer control group: received quercetin 50 mg/kg/day for 10 days. CYP group: received saline for 10 days and injected with a single dose of 150 mg/kg CYP intraperitoneal (i...
May 18, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29775111/tamoxifen-prevents-d-galactosamine-lipopolysaccharide-induced-murine-acute-hepatic-failure-through-inhibition-of-oxidative-stress-and-mmd-2-upregulation
#11
Xiaoxue Gong, Peng Cao, Liping Liu, Yan Lin, Qing Yang, Linyu Zhou, Tianen Wu, Mansheng Luo
Oxidative stress is considered one of the major mechanisms underlying lipopolysaccharide (LPS)-induced acute liver failure (ALF). Tamoxifen has been reported to ameliorate LPS-induced ALF via the induction of monocyte to macrophage differentiation-associated 2 (Mmd-2). Whether antioxidant effects are involved remains unknown. Mice were given tamoxifen (TAM) once a day for 3 days. Twelve hours later, d-galactosamine (GaIN) and LPS were injected intraperitoneally to induce ALF. N-Acetylcysteine (NAC) was administered immediately after ALF induction as a positive control...
May 18, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29774943/-progress-in-prophylatic-hyperthermic-intraperitoneal-chemotherapy-for-advanced-gastric-carcinoma
#12
Xinhua Chen, Jun Luo, Hao Liu, Yuehong Chen, Yanfeng Hu, Tuanjie Li, Tian Lin, Yu Zhu, Mingli Zhao, Hao Chen, Guoxin Li, Jiang Yu
Advanced gastric cancer (AGC) has a high recurrence rate (especially peritoneal relapse) and a poor prognosis. Systematic chemotherapy or targeted therapy have not been able to significantly reduce the major cause of an unfavorable prognosis, namely the high peritoneal AGC recurrence rate post-surgery. Further studies concerning the application of hyperthermic intraperitoneal chemotherapy (HIPEC) post curative surgery for AGC patients, namely the prophylactic HIPEC (P-HIPEC), have involved a prophylactic approach to prevent peritoneal relapse following curative gastrectomy in high-risk patients...
May 25, 2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29774557/diabetes-induced-microvascular-complications-at-the-level-of-the-spinal-cord-a-contributing-factor-in-diabetic-neuropathic-pain
#13
N Ved, M E Da Vitoria Lobo, S M Bestall, C L Vidueira, N Beazley-Long, K Ballmer-Hofer, M Hirashima, D O Bates, L F Donaldson, R P Hulse
Abnormalities of neurovascular interactions within the central nervous system of diabetic patients is associated with the onset of many neurological disease states. However, to date, the link between the neurovascular network within the spinal cord and regulation of nociception has not been investigated despite neuropathic pain being common in diabetes. We hypothesised that hyperglycaemia-induced endothelial degeneration in the spinal cord, due to suppression of VEGF-A/VEGFR2 signalling, induces diabetic neuropathic pain...
May 17, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29774075/plectin-targeted-liposomes-enhance-the-therapeutic-efficacy-of-a-parp-inhibitor-in-the-treatment-of-ovarian-cancer
#14
Siva Sai Krishna Dasa, Galina Diakova, Ryo Suzuki, Anne M Mills, Michael F Gutknecht, Alexander L Klibanov, Jill K Slack-Davis, Kimberly A Kelly
Advances in genomics and proteomics drive precision medicine by providing actionable genetic alterations and molecularly targeted therapies, respectively. While genomic analysis and medicinal chemistry have advanced patient stratification with treatments tailored to the genetic profile of a patient's tumor, proteomic targeting has the potential to enhance the therapeutic index of drugs like poly(ADP-ribose) polymerase (PARP) inhibitors. PARP inhibitors in breast and ovarian cancer patients with BRCA1/2 mutations have shown promise...
2018: Theranostics
https://www.readbyqxmd.com/read/29773890/intraperitoneal-administration-of-the-anti-il-23-antibody-prevents-the-establishment-of-intestinal-nematodes-in-mice
#15
M Gomez-Samblas, D Bernal, A Bolado-Ortiz, S Vilchez, F Bolás-Fernández, A M Espino, M Trelis, A Osuna
Previous studies have established that an increased Th-9 response creates a hostile environment for nematode parasites. Given that IL-23, a cytokine required for maintenance of the IL-17-secreting phenotype, has inhibitory effects on IL-9 production, we hypothesized that reducing circulating IL-23 by treatment with anti-IL-23 antibodies would reduce the establishment and development of parasitic intestinal nematodes. In this study, we show that animals treated with anti-IL-23 monoclonal antibodies showed a drastic reduction in the number of mouse pinworms (Aspiculuris tetraptera) recovered from the intestine (p < 0...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773191/anti-inflammatory-and-antinociceptive-effects-of-2-2-dipyridyl-diselenide-through-reduction-of-inducible-nitric-oxide-synthase-nuclear-factor-kappa-b-and-c-jun-n-terminal-kinase-phosphorylation-levels-in-the-mouse-spinal-cord
#16
Suzan Gonçalves Rosa, César Augusto Brüning, Ana Paula Pesarico, Ana Cristina Guerra de Souza, Cristina Wayne Nogueira
Appropriate treatment of pain requires analgesics and anti-inflammatory drugs generally associated with undesirable side effects and not fully effective in a significant proportion of patients. Organoselenium compounds elicit a plenty of pharmacological effects in different animal models. Among these compounds, the 2,2`-dipyridyl diselenide (DPD) has a potent antioxidant effect and low toxicity. In this way, the aim of this study was to investigate the possible DPD antinociceptive effect and its mechanism of action, as well as the safety of the compound...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29772996/beneficial-protective-effect-of-troxerutin-on-nickel-induced-renal-dysfunction-in-wistar-rats
#17
Perumal Elangovan, Ramalingam Ramakrishnan, Kasinathan Amudha, Abdulkadhar Mohamed Jalaludeen, Gunasekaran Karuna Sagaran, Frankline Rajan Babu, Leelavinothan Pari
Nickel (Ni) is an important environmental toxicant that can cause cancer and cardiovascular disease. The aim of this study was to examine the protective effects of troxerutin (Txn) Ni-induced renal dysfunction in rats using biochemical and histopathological approaches. Nickel (20 mg/kg body weight [b.w.]/day) was administered intraperitoneally (i.p.) for 20 days. Renal damage from Ni toxicity was evident from the changed levels of serum and urinary markers in Ni-treated rats. The levels of lipid peroxidation markers also significantly increased, while the levels of nonenzymatic and enzymatic antioxidants significantly decreased in the kidney of Ni-intoxicated rats...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29772867/-depressant-effect-of-lithium-on-apoptosis-of-nerve-cells-of-adult-rats-after-spinal-cord-injury
#18
Fang Wang, Chao Zhou, Zheng-Chao Gao, Yu-Huan Li, Wen-Long Yang, Dong Wang, Hao-Peng Li, Xi-Jing He
OBJECTIVE: To study whether lithium agent produces neuroprotective effect by inhibiting the nerve cell apoptosis of rats after spinal cord injury. METHODS: Forty-two male SD rats weighing 200 to 250 g were randomly divided into 3 groups: blank control group( n =6) without surgery, normal saline(NS) group( n =18) with intraperitoneal injection of NS (40 mg/kg); and Lithium chloride (Licl) group ( n =18) with intraperitoneal injection of Licl (40 mg/kg). After Allen method modeling, Licl group started intraperitoneal injection of Licl solution (40 mg·kg⁻¹·d⁻¹) within 15 min after operation to the second week...
April 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29772690/peritoneal-carcinomatosis-targeting-with-tumor-homing-peptides
#19
REVIEW
Lorena Simón-Gracia, Hedi Hunt, Tambet Teesalu
Over recent decades multiple therapeutic approaches have been explored for improved management of peritoneally disseminated malignancies-a grim condition known as peritoneal carcinomatosis (PC). Intraperitoneal (IP) administration can be used to achieve elevated local concentration and extended half-life of the drugs in the peritoneal cavity to improve their anticancer efficacy. However, IP-administered chemotherapeutics have a short residence time in the IP space, and are not tumor selective. An increasing body of work suggests that functionalization of drugs and nanoparticles with targeting peptides increases their peritoneal retention and provides a robust and specific tumor binding and penetration that translates into improved therapeutic response...
May 16, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29772553/establishment-of-a-porcine-model-of-indomethacin-induced-intestinal-injury
#20
Dan Yi, Wenkai Liu, Yongqing Hou, Lei Wang, Di Zhao, Tao Wu, Binying Ding, Guoyao Wu
A useful animal model of intestinal injury is pivotal for studying its pathogenesis and developing nutritional interventions (e.g., amino acid supplementation). Here, we propose the use of indomethacin (IDMT) to induce intestinal inflammation in neonatal pigs. Fourteen-day-old piglets fed a milk replacer diet receive intraperitoneal administration of IDMT (5 mg/kg body weight) for 3 consecutive days. On day 4, blood and intestinal samples are obtained for physiological and biochemical analyses. IDMT increases blood DAO activity, I-FABP concentration, neutrophil and eosinophil numbers; intestinal MMP3 mRNA levels, MPO activity, and MDA concentration; but reduces the plasma concentration of citrulline (synthesized exclusively by enterocytes of the small intestine), intestinal GSH-Px activity, and mRNA levels for villin , I-FABP , TRPV6 , AQP10 , and KCNJ13 ...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
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