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https://www.readbyqxmd.com/read/29656548/effects-of-geranylgeranylacetone-upon-cardiovascular-diseases
#1
Shengqiang Zeng, Hong Wang, Zaihua Chen, Qianqiang Cao, Lin Hu, Yanqing Wu
Heat shock proteins (HSPs) are an important family of protective proteins. They are involved actively in an array of cellular processes, including protective effects on the cardiovascular system in response to various stimuli. Increasing evidence shows that pharmacologic interventions that induce expression of HSPs may be a novel approach for the treatment of cardiovascular diseases. However, agents that induce expression of HSPs used previously are toxic or have harmful side effects, which limit their clinical application...
April 14, 2018: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/29653414/new-insights-on-the-modulatory-roles-of-metformin-or-alpha-lipoic-acid-versus-their-combination-in-dextran-sulfate-sodium-induced-chronic-colitis-in-rats
#2
Fatma S Samman, Samah M Elaidy, Soha S Essawy, Mohammad S Hassan
BACKGROUND: Dextran sulfate sodium (DSS)-induced colitis is the most widely used model that resembles ulcerative colitis (UC) in human with challenging chronic mechanistic oxidative stress-inflammatory/immunological cascades. In models of acute colitis, reduction of oxidative stress and inflammatory burdens beside manipulation of many transcriptional factors were achieved by metformin or alpha-lipoic acid (α-LA). Currently, in vivo DSS-induced chronic colitis was conducted and the possible therapeutic roles of metformin and/or α-LA were explored...
November 24, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29651102/exosomes-from-adipose-derived-stem-cells-overexpressing-nrf2-accelerate-cutaneous-wound-healing-by-promoting-vascularization-in-a-diabetic-foot-ulcer-rat-model
#3
Xue Li, Xiaoyun Xie, Weishuai Lian, Rongfeng Shi, Shilong Han, Haijun Zhang, Ligong Lu, Maoquan Li
Diabetic foot ulcers (DFU) increase the risks of infection and amputation in patients with diabetes mellitus (DM). The impaired function and senescence of endothelial progenitor cells (EPCs) and high glucose-induced ROS likely exacerbate DFUs. We assessed EPCs in 60 patients with DM in a hospital or primary care setting. We also evaluated the therapeutic effects of exosomes secreted from adipose-derived stem cells (ADSCs) on stress-mediated senescence of EPCs induced by high glucose. Additionally, the effects of exosomes and Nrf2 overexpression in ADSCs were investigated in vitro and in vivo in a diabetic rat model...
April 13, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29622090/the-effect-of-1-25-dihydroxyvitamin-d3-on-hcl-ethanol-induced-gastric-injury-in-rats
#4
Hasan Huseyin Sahin, Alev Cumbul, Unal Uslu, Zeynep Yilmaz, Feriha Ercan, Inci Alican
This study evaluated ulceroprotective and antioxidant effect of 1,25 dihydroxyvitamin D3 against gastric damage in rats. Rats were treated intraperitoneally with either 1,25 dihydroxyvitamin D3 (0.25 μg/kg) or saline for 14 days. On day-15, the non-selective cyclooxygenase inhibitor indomethacin (10 mg/kg; subcutaneously), the inhibitor of sulfhydryl groups N-ethylmaleimide (10 mg/kg; intraperitoneally) or ATP-sensitive K+ channel blocker glibenclamide (10 mg/kg; orally) was given prior to 1,25 dihydroxyvitamin D3...
April 2018: Tissue & Cell
https://www.readbyqxmd.com/read/29616750/comparison-of-two-models-of-inflammatory-bowel-disease-in-rats
#5
Cristina Sorina Catana, Cristian Magdas, Flaviu Alexandru Tabaran, Elena Cristina Crăciun, Georgiana Deak, Virginia Ana Magdaş, Vasile Cozma, Călin Mircea Gherman, Ioana Berindan-Neagoe, Dan Lucian Dumitraşcu
BACKGROUND: There is a need for experimental animal models for inflammatory bowel diseases (IBD), but no proposed model has been unanimously accepted. OBJECTIVES: The aim of this study was to develop 2 affordable models of IBD in rats and to compare them. MATERIAL AND METHODS: We produced IBD in rats using either dextran sodium sulfate (DSS) or 2, 4, 6-trinitrobenzene sulfonic acid (TNBS). The requirements for experimental models were: a predictable clinical course, histopathology and inflammation similar to human ulcerative colitis (UC) and Crohn's disease (CD)...
March 26, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29605674/therapeutic-potentials-of-houttuynia-cordata-thunb-against-inflammation-and-oxidative-stress-a-review
#6
REVIEW
Khanchuila Shingnaisui, Tapan Dey, Prasenjit Manna, Jatin Kalita
ETHNOPHARMACOLOGICAL RELEVANCE: Houttuynia cordata Thunb. (Family: Saururaceae) is an herbaceous perennial plant that grows in moist and shady places. The plant is well known among the people of diverse cultures across Japan, Korea, China and North-East India for its medicinal properties. Traditionally the plant is used for its various beneficial properties against inflammation, pneumonia, severe acute respiratory syndrome, muscular sprain, stomach ulcer etc. Oxidative stress and inflammation were found to be linked with most of the diseases in recent times...
March 29, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29602925/-risk-factors-for-adverse-course-of-gastric-and-duodenal-peptic-ulcer
#7
Olena M Komar, Nataliya M Kizlova, Oleksandra D Trylevych, Vasyl V Kravchenko
OBJECTIVE: Introduction: High morbidity rate, frequent relapses, and significant economic losses give reasons for highlighting the peptic ulcer disease as the most topical medical-statistical problem. The aim of the study is to assess the influence of the main risk factors on the course of gastric and duodenal peptic ulcer. PATIENTS AND METHODS: Materials and methods: We formed up the risk groups consisted of patients with 12 modified (4) and regular (8) factors, each characterized with its own signs and gradations...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29594157/use-of-nasotracheal-intubation-during-general-anesthesia-in-two-ponies-with-tracheal-collapse
#8
Keila K Ida, Aurélie Sauvage, Alexandra Gougnard, Magda Grauwels, Didier Serteyn, Charlotte Sandersen
Ponies with tracheal collapse may have an increased anesthetic risk due to airway obstruction during induction and recovery. To our knowledge, there are no anesthetic descriptions of these patients, despite a reported 5.6% incidence and 77% mortality rate. Two Shetland ponies with tracheal collapse, a 12-year-old male (pony 1) and a 27-year-old female (pony 2), were referred for right eye enucleation due to a perforating corneal ulcer and severe recurrent uveitis, respectively. Pony 1 was stressed, had lung stridor and hyperthermia, and developed inspiratory dyspnea with handling...
2018: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29580975/argon-cold-plasma-a-novel-tool-to-treat-therapy-resistant-corneal-infections
#9
Helena H Reitberger, Marta Czugala, Catherine Chow, Andreas Mohr, Andreas Burkovski, Anja K Gruenert, Renate Schoenebeck, Thomas A Fuchsluger
PURPOSE: To test whether therapy-resistant corneal infections can be successfully treated with argon cold plasma to reduce or eliminate pathogen microorganisms without affecting corneal cell viability. DESIGN: First-in-man case series and experimental study. METHODS: Cold plasma effects on viability of primary human corneal limbal epithelial cells were studied using exposure times from 0.5 to 10 minutes (metabolic activity, oxidative stress, apoptosis)...
March 23, 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29580144/natural-dietary-compound-naringin-prevents-azoxymethane-dextran-sodium-sulfate-induced-chronic-colorectal-inflammation-and-carcinogenesis-in-mice
#10
Yu-Sheng Zhang, Feng Wang, Shu-Xiang Cui, Xian-Jun Qu
Naringin, a natural occurring flavonoid compound, enriches in citrus fruits. We aimed to evaluate the inhibitory effect of naringin on colitis and chronic inflammation-driven carcinogenesis. Male C57BL/6 mice were exposed to AOM/DSS to induce colorectal inflammation and carcinogenesis. Naringin by oral administration prevented AOM/DSS-induced ulcerative colitis and carcinogenesis without significant side effects. Naringin attenuated the severity of colitis and colorectal adenomas through inhibiting myeloid-derived suppressor cells (MDSCs), pro-inflammatory mediators GM-CSF/M-CSF, IL-6 and TNF-α and the NF-κB/IL-6/STAT3 cascades in colorectal tissues...
March 26, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29577238/stress-ulcer-prophylaxis-in-adult-intensive-care-unit-patients-a-protocol-for-a-systematic-review
#11
REVIEW
M Barbateskovic, S Marker, J C Jakobsen, M Krag, A Granholm, C T Anthon, A Perner, J Wetterslev, M H Møller
BACKGROUND: In the intensive care unit (ICU), stress ulcer prophylaxis with proton pump inhibitors or histamine-2-receptor antagonists is standard of care although gastrointestinal bleeding remains uncommon. It remains unknown whether its use is associated with benefits or harms and the quality of evidence supporting the use of stress ulcer prophylaxis has been questioned. Accordingly, the objective of this systematic review was to critically assess the evidence from randomized clinical trials on the benefits and harms of stress ulcer prophylaxis vs...
March 25, 2018: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29575574/no-effects-without-causes-the-iron-dysregulation-and-dormant-microbes-hypothesis-for-chronic-inflammatory-diseases
#12
Douglas B Kell, Etheresia Pretorius
Since the successful conquest of many acute, communicable (infectious) diseases through the use of vaccines and antibiotics, the currently most prevalent diseases are chronic and progressive in nature, and are all accompanied by inflammation. These diseases include neurodegenerative (e.g. Alzheimer's, Parkinson's), vascular (e.g. atherosclerosis, pre-eclampsia, type 2 diabetes) and autoimmune (e.g. rheumatoid arthritis and multiple sclerosis) diseases that may appear to have little in common. In fact they all share significant features, in particular chronic inflammation and its attendant inflammatory cytokines...
March 25, 2018: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/29574078/a-novel-dressing-for-the-combined-delivery-of-platelet-lysate-and-vancomycin-hydrochloride-to-chronic-skin-ulcers-hyaluronic-acid-particles-in-alginate-matrices
#13
S Rossi, M Mori, B Vigani, M C Bonferoni, G Sandri, F Riva, C Caramella, F Ferrari
The aim of the present work was to develop a medication allowing for the combined delivery of platelet lysate (PL) and an anti-infective model drug, vancomycin hydrochloride (VCM), to chronic skin ulcers. A simple method was set up for the preparation of hyaluronic acid (HA) core-shell particles, loaded with PL and coated with calcium alginate, embedded in a VCM containing alginate matrix. Two different CaCl2 concentrations were investigated to allow for HA/PL core-shell particle formation. The resulting dressings were characterized for mechanical and hydration properties and tested in vitro (on fibroblasts) and ex-vivo (on skin biopsies) for biological activity...
March 21, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29570422/aging-is-a-sticky-business
#14
Andrei P Sommer
OBJECTIVE: The objective of this work is to put forward a mechanism by which low-level light [red-to near infrared (NIR) laser or light emitting diodes (LED)] is instrumental in the process of accelerating the healing of wounds. BACKGROUND DATA: Interaction modalities of low-level light with oxidatively stressed cells and tissues are the focus of intense research efforts. Several models of the light/cell-interaction mechanism have been proposed. In the most popular model, cytochrome c oxidase is believed to play the role of the principal acceptor for red-to NIR photons...
March 23, 2018: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29565637/curcuminoids-from-curcuma-longa-new-adjuvants-for-the-treatment-of-crohn-s-disease-and-ulcerative-colitis
#15
Fernando Cunha Neto, Ledyane Taynara Marton, Sâmylla Vaz de Marqui, Tainah Aparecida Lima, Sandra Maria Barbalho
Crohn's Disease (CD) and Ulcerative Colitis (UC) result from an overreaction of the bowel to multifactorial stimuli leading to discomfort, pain, and it is associated with high morbidity and lethality. The medications commonly used are expensive and associated with multiple side effects. Curcuma longa exerts anti-inflammatory and antioxidant actions and has shown positive effects on CD and UC treatment, possibly due to the presence of curcuminoids. The objective of this review was to evaluate the role of curcuminoids in the treatment of IBD...
March 22, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29547907/dietary-supplementation-with-a-bacillus-superoxide-dismutase-protects-against-%C3%AE-radiation-induced-oxidative-stress-and-ameliorates-dextran-sulfate-sodium-induced-ulcerative-colitis-in-mice
#16
Ji-Eun Kang, Hyun-Do Kim, Soo-Young Park, Jae-Gu Pan, Jeong Hyun Kim, Do-Young Yum
Background and Aims: Commercial superoxide dismutase (SOD) is derived from melon extract and has a potential as a dietary supplement due to its beneficial anti-oxidative effects. We aimed to improve the productivity of SOD compared with plant SOD by using a generally-regarded-as-safe (GRAS) microorganism, Bacillus amyloliquefaciens, and assess its anti-oxidative effect using γ-radiation- and dextransulfate sodium (DSS)-induced oxidative models in mice. Methods: We identified the sodA gene encoding manganese-containing SODs (Mn-SOD) in B...
March 14, 2018: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29545962/subcutaneous-granulomatous-inflammation-due-to-basidiobolomycosis-case-reports-of-3-patients-in-buruli-ulcer-endemic-areas-in-benin
#17
Luc V C Brun, Jean Jacques Roux, Ghislain E Sopoh, Julia Aguiar, Miriam Eddyani, Wayne M Meyers, Dirk Stubbe, Marie T Akele Akpo, Françoise Portaels, Bouke C de Jong
Background: Basidiobolomycosis is a rare subcutaneous mycosis, which can be mistaken for several other diseases, such as soft tissue tumors, lymphoma, or Buruli ulcer in the preulcerative stage. Microbiological confirmation by PCR for Basidiobolus ranarum and culture yield the most specific diagnosis, yet they are not widely available in endemic areas and with varying sensitivity. A combination of histopathological findings, namely, granulomatous inflammation with giant cells, septate hyphal fragments, and the Splendore-Hoeppli phenomenon, can confirm basidiobolomycosis in patients presenting with painless, hard induration of soft tissue...
2018: Case Reports in Pathology
https://www.readbyqxmd.com/read/29540811/thyroid-dysfunction-neurological-disorder-and-immunosuppression-as-the-consequences-of-long-term-combined-stress
#18
Jingping Zhang, Jingjing Huang, Kasimujiang Aximujiang, Chenbo Xu, Abulaiti Ahemaiti, Guixia Wu, Li Zhong, Kurexi Yunusi
Stress is a powerful modulator of neuroendocrine, behavioral, and immunological functions. So far, the molecular mechanisms of response to stressors still remain elusive. In the current study, after 10 days of repeated chronic stress (hot-dry environment and electric foot-shock), a murine model of combined-stress (CS) was created in the SPF Wistar rats. Meanwhile, we established an ulcerative-colitis (UC) rat model induced by 2,4,6-trinitrobenzene sulfonic acid (TNBS)/ethanol enema according to previous studies...
March 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29540678/inhibition-of-sec61-dependent-translocation-by-mycolactone-uncouples-the-integrated-stress-response-from-er-stress-driving-cytotoxicity-via-translational-activation-of-atf4
#19
Joy Ogbechi, Belinda S Hall, Thomas Sbarrato, Jack Taunton, Anne E Willis, Ronald C Wek, Rachel E Simmonds
Mycolactone is the exotoxin virulence factor of Mycobacterium ulcerans that causes the neglected tropical disease Buruli ulcer. We recently showed it to be a broad spectrum inhibitor of Sec61-dependent co-translational translocation of proteins into the endoplasmic reticulum (ER). An outstanding question is the molecular pathway linking this to its known cytotoxicity. We have now used translational profiling to better understand the reprogramming that occurs in cells exposed to mycolactone. Gene ontology identified enrichment in genes involved in cellular response to stress, and apoptosis signalling among those showing enhanced translation...
March 14, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29536218/pharmacological-mechanisms-underlying-gastroprotective-activities-of-binapthyl-diselenide-in-wistar-rats
#20
Mohammad Ibrahim, Musadiq Ibrahim, Niaz Muhammad, Muhammad Ishaq Ali Shah, Gerlânia de Oliveira Leite, Joao B T Rocha
Selenium (Se) is a dietary essential trace element with important biological roles. It is a nutrient related to the complex metabolic and enzymatic functions. Organoselenium compounds have been reported to have anti-ulcer activity and used as drug for the treatment of gastrointestinal disorders. The antiulcer activity of binapthyl diselenide (NapSe)2 was investigated in ethanol-induced gastric lesions in rats. A number of markers of oxidative stress were examined in rats stomach including thiobarbituric acid reactive species (TBARS), catalase (CAT), superoxide dismutase (SOD), non-protein thiol groups (NPSH) and ascorbic acid...
March 13, 2018: Inflammopharmacology
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