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https://www.readbyqxmd.com/read/27912173/improved-anticancer-and-antiparasitic-activity-of-new-lawsone-mannich-bases
#1
Katharina Mahal, Aamir Ahmad, Florian Schmitt, Julia Lockhauserbäumer, Kathrin Starz, Rohan Pradhan, Subhash Padhye, Fazlul H Sarkar, Waleed S Koko, Rainer Schobert, Klaus Ersfeld, Bernhard Biersack
Substituted lawsone Mannich bases 2a-e, 3a-e and 4a-e were prepared and tested for their biological activities. The new fatty alkyl substituted compounds 2a-c exhibited strong and selective growth inhibitory activities in the low one-digit micromolar and sub-micromolar range against a panel of human cancer cell lines associated with ROS formation. In addition, compounds 2a-c revealed sub-micromolar anti-trypanosomal activities against parasitic Trypanosoma brucei brucei cells via deformation of the microtubule cytoskeleton...
November 22, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27908697/clostridium-difficile-carriage-in-adult-cystic-fibrosis-cf-implications-for-patients-with-cf-and-the-potential-for-transmission-of-nosocomial-infection
#2
D G Burke, M J Harrison, C Fleming, M McCarthy, C Shortt, I Sulaiman, D M Murphy, J A Eustace, F Shanahan, C Hill, C Stanton, M C Rea, R P Ross, B J Plant
Clostridium difficile is an anaerobic Gram-positive, spore-forming, toxin-producing bacillus transmitted among humans through the faecal-oral route. Despite increasing carriage rates and the presence of C. difficile toxin in stool, patients with CF rarely appear to develop typical manifestations of C. difficile infection (CDI). In this study, we examined the carriage, toxin production, ribotype distribution and antibiotic susceptibility of C. difficile in a cohort of 60 adult patients with CF who were pre-lung transplant...
November 29, 2016: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/27906990/surveillance-of-helicobacter-pylori-antibiotic-susceptibility-in-indonesia-different-resistance-types-among-regions-and-with-novel-genetic-mutations
#3
Muhammad Miftahussurur, Ari Fahrial Syam, Iswan Abbas Nusi, Dadang Makmun, Langgeng Agung Waskito, Lukman Hakim Zein, Fardah Akil, Willy Brodus Uwan, David Simanjuntak, I Dewa Nyoman Wibawa, Jimmy Bradley Waleleng, Alexander Michael Joseph Saudale, Fauzi Yusuf, Syifa Mustika, Pangestu Adi, Ummi Maimunah, Hasan Maulahela, Yudith Annisa Ayu Rezkitha, Phawinee Subsomwong, Nasronudin, Dadik Rahardjo, Rumiko Suzuki, Junko Akada, Yoshio Yamaoka
Information regarding Helicobacter pylori antibiotic resistance in Indonesia was previously inadequate. We assessed antibiotic susceptibility for H. pylori in Indonesia, and determined the association between virulence genes or genetic mutations and antibiotic resistance. We recruited 849 dyspeptic patients who underwent endoscopy in 11 cities in Indonesia. E-test was used to determine the minimum inhibitory concentration of five antibiotics. PCR-based sequencing assessed mutations in 23S rRNA, rdxA, gyrA, gyrB, and virulence genes...
2016: PloS One
https://www.readbyqxmd.com/read/27904124/mycotic-aneurysm-caused-by-bacteroides-fragilis-in-an-elderly-immunosuppressed-patient
#4
Takahiko Fukuchi, Sadao Kawasaki, Hiroki Hayashi, Daisuke Koreeda, Takahiro Ashikawa
An 82-year-old Japanese man, who presented with a fever and abdominal pain, was admitted to our hospital. According to enhanced computed tomography images, the probable diagnosis was abdominal aortic mycotic aneurysm. Eight sets of blood cultures obtained from the patient were negative. Despite administering treatment with vancomycin and ceftriaxone, the aneurysm progressively enlarged. He underwent open debridement surgery and in situ replacement because of an aneurysmal rupture. Bacteroides fragilis was isolated from the tissue culture of the aortic wall...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27902906/generalized-tetanus-in-a-gyrfalcon-falco-rusticolus-with-pododermatitis
#5
Hugues Beaufrère, Delphine Laniesse, Paul Stickings, Robert Tierney, Thea Sesardic, Durda Slavic, Nicole Compo, Dale A Smith
A 2-yr-old male gyrfalcon ( Falco rusticolus ) was presented for severe and generalized muscle spasticity and pododermatitis. The falcon had been treated for pododermatitis over the previous 4 mo. Muscle rigidity and spasms involved the entire bird but were more severe on the right leg. The bird was also tachypneic and hyperthermic at 45 C. While the plantar pododermatitis lesions had healed, there was still a small abscess on the lateral aspect of the right foot. Clinical signs were consistent with tetanus...
December 2016: Avian Diseases
https://www.readbyqxmd.com/read/27899252/the-effects-of-metronidazole-on-cytochrome-p450-activity-and-expression-in-rats-after-acute-exposure-to-high-altitude-of-4300m
#6
Rong Wang, Yuhuan Sun, Qiang Yin, Hua Xie, Wenbin Li, Chang Wang, Jiankui Guo, Ying Hao, Rui Tao, Zhengping Jia
BACKGROUND: The purpose is to observe the changes of CYP450 enzyme activity expression as well as the physiological and pathological states of Wistar rats given metronidazole drug intervention after acute exposure to high altitude of 4300m. METHODS AND RESULTS: Thirty healthy adult male Wistar rats of average weight 200 ± 20 g were randomly assigned into three groups of 10 rats per group as follows: Group A (55m), Group B (4300m) and Group C (metronidazole intervention, 4300m)...
November 26, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27898571/single-dose-compared-with-multidose-metronidazole-for-the-treatment-of-trichomoniasis-in-women-a-meta-analysis
#7
Katharine Howe, Patricia J Kissinger
BACKGROUND: Trichomonas vaginalis is the most common curable sexually transmitted infection worldwide. Although the Centers for Disease Control and Prevention and the World Health Organization recommend a single 2-g dose of metronidazole for the first line of treatment for T. vaginalis among human immunodeficiency virus (HIV) negative women, high rates of repeat infections are found. The purpose of this meta-analysis was to compare treatment failure between single versus multidose metronidazole for the treatment of T...
November 28, 2016: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27898166/neither-10-nor-14-day-sequential-treatment-is-better-than-standard-triple-therapy-for-helicobacter-pylori-eradication
#8
Emanuel Warrington, Orlando López-Román, Rafael Tirado Montijo, Rafael Urbina, Marcia Cruz-Correa, Doris H Toro
OBJECTIVE: Helicobacter pylori is a bacterial pathogen associated with chronic gastritis, peptic ulcer disease, gastric adenocarcinoma, and gastric mucosa associated lymphoid tissue lymphoma. Current treatment guidelines support a 7- to 14-day, triple-drug protocol consisting of a proton-pump inhibitor (PPI), clarithromycin, and either amoxicillin or an imidazole. The initial eradication rates for this regimen were 80 to 90%. Nevertheless its effectiveness has declined as the antibiotic resistance to clarithromycin and metronidazole has emerged...
December 2016: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/27897206/the-incidence-and-drug-resistance-of-clostridium-difficile-infection-in-mainland-china-a-systematic-review-and-meta-analysis
#9
Chenjie Tang, Lunbiao Cui, Yuqiao Xu, Le Xie, Pengfei Sun, Chengcheng Liu, Wenying Xia, Genyan Liu
It has been widely reported that the incidence and severity of Clostridium difficile infection (CDI) have increased dramatically in North America and Europe. However, little is known about CDI in Mainland China. In this study, we aimed to investigate the incidence of CDI and the main epidemic and drug-resistant strains of C. difficile in Mainland China through meta-analysis of related studies published after the year 2010. A total of 51 eligible studies were included. The pooled incidence of toxigenic C. difficile among patients with diarrhoea was 14% (95% CI = 12-16%)...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27893543/changes-in-intestinal-microbiota-following-combination-therapy-with-fecal-microbial-transplantation-and-antibiotics-for-ulcerative-colitis
#10
Dai Ishikawa, Takashi Sasaki, Taro Osada, Kyoko Kuwahara-Arai, Keiichi Haga, Tomoyoshi Shibuya, Keiichi Hiramatsu, Sumio Watanabe
BACKGROUND: Fecal microbiota transplantation (FMT) is a potential therapeutic approach to restore normal intestinal microbiota in patients with ulcerative colitis (UC), which is associated with dysbiosis; however, treatment efficacy remains unclear. Hence, we studied the impact of antibiotic pretreatment with amoxicillin, fosfomycin, and metronidazole (AFM therapy) and FMT versus AFM alone. METHODS: AFM therapy was administered to patients for 2 weeks until 2 days before FMT...
November 22, 2016: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/27890958/nonhealing-genital-ulcer-in-aids-a-diagnostic-dilemma
#11
Yogesh S Marfatia, Devi Sathianadha Menon, Sheethal Jose, Brijesh Kumar Patel
HIV/AIDS-related immune alteration poses many diagnostic and therapeutic challenges. HIV-positive 44-year-old male, on second-line antiretroviral therapy (ART) presented with asymptomatic non healing, well-defined, erythematous ulcer over penis since 8 months with serosanguinous discharge. Inguinal lymph nodes were not palpable. Tzanck smear was negative. Biopsy was not done as the patient was not willing for the same. Acyclovir was given considering herpes infection to which there was no response, and hence azithromycin and metronidazole were given, without improvement...
July 2016: Indian Journal of Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27890724/clinical-characteristics-and-antimicrobial-susceptibilities-of-anaerobic-bacteremia-in-an-acute-care-hospital
#12
Thean Yen Tan, Lily Siew Yong Ng, Lee Ling Kwang, Suma Rao, Li Ching Eng
: This study investigated the clinical features of anaerobic bacteraemia in an acute-care hospital, and evaluated the antimicrobial susceptibility of these isolates to commonly available antibiotics. MATERIALS & METHODS: Microbiological and epidemiological data from 2009-2011were extracted from the laboratory information system and electronic medical records. One hundred and eleven unique patient episodes consisting of 116 anaerobic isolates were selected for clinical review and antibiotic susceptibility testing...
November 24, 2016: Anaerobe
https://www.readbyqxmd.com/read/27890510/in-situ-forming-pluronic%C3%A2-f127-chitosan-hydrogel-limits-metronidazole-transmucosal-absorption
#13
Sophia Malli, Christian Bories, Bénédicte Pradines, Philippe M Loiseau, Gilles Ponchel, Kawthar Bouchemal
The objective of this work is to design topically-applied thermosensitive and mucoadhesive hydrogel containing metronidazole (MTZ) for the treatment of Trichomonas vaginalis infections. Hydrogel composed of pluronic® F127 (20wt%), chitosan (1wt%) and metronidazole MTZ (0.7wt%) mixture showed its ability to decrease by a factor 4 MTZ flux and apparent permeability absorption through vaginal mucosa. The impact of hydrogel on transmucosal penetration of MTZ was evaluated ex vivo on excised porcine vaginal mucosa mounted on Franz diffusion cell...
November 24, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27888863/helicobacter-pylori-related-diseases
#14
Javier P Gisbert
This article describes the main conclusions drawn from the presentations on Helicobacter pylori infection in Digestive Diseases Week, 2016. Despite the undeniable widespread reduction in the prevalence of this infection, infection rates continue to be high in developing countries. The prevalence of clarithromycin, metronidazole and quinolone resistance is markedly high in most countries and continues to rise. The management of H. pylori infection in patients with peptic ulcers still leaves much to be desired...
September 2016: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/27888222/asymptomatic-colitis-induced-by-low-dose-methotrexate
#15
Toshikazu Ozeki, Yoshiro Fujita
A woman aged 77 years with a history of rheumatoid arthritis (RA) presented with inflammatory colitis confined to her rectum, which was incidentally found by a screening colonoscopy. Histopathological examination of colonic biopsies showed non-specific inflammatory infiltrates of lymphocytes, the cause of which was unknown. She had been diagnosed with RA 5 years before, and she was receiving methotrexate 6 mg weekly, to which tocilizumab had been added 4 years earlier, which achieved stable control of her disease...
November 25, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27886546/biology-oriented-drug-synthesis-biods-in%C3%A2-vitro-%C3%AE-glucuronidase-inhibitory-and-in-silico-studies-on-2-2-methyl-5-nitro-1h-imidazol-1-yl-ethyl-aryl-carboxylate-derivatives
#16
Uzma Salar, Khalid Mohammed Khan, Muhammad Taha, Nor Hadiani Ismail, Basharat Ali, Qurat-Ul-Ain, Shahnaz Perveen, Mehreen Ghufran, Abdul Wadood
Current study is based on the biology-oriented drug synthesis (BIODS) of 2-(2-methyl-5-nitro-1H-imidazol-1-yl)ethyl aryl carboxylate derivatives 1-26, by treating metronidazole with different aryl and hetero-aryl carboxylic acids in the presence of 1,1'-carbonyl diimidazole (CDI) as a coupling agent. Structures of all synthetic derivatives were confirmed with the help of various spectroscopic techniques such as EI-MS, (1)H -NMR and (13)C NMR. CHN elemental analyses were also found in agreement with the calculated values...
November 14, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27879042/high-antibiotic-resistance-of-helicobacter-pylori-and-its-effect-on-tailored-and-empiric-eradication-of-the-organism-in-lower-silesia-poland
#17
Stanisław Ferenc, Jan Gnus, Magdalena Kościelna, Małgorzata Kinda, Andriy Yarka, Luke Stewart, Wojciech Witkiewicz
BACKGROUND: At present, the resistance to antibiotics is considered the most important reason for Helicobacter pylori (HP) eradication failure. The aim of this study was to estimate the prevalence of antimicrobial resistance of HP strains and to evaluate tailored and empiric therapeutic regimens in patients with peptic ulcer disease associated with infection of this microorganism. MATERIALS AND METHODS: Between May 2011 and February 2013, 185 consecutive Polish patients with at least one positive Helicobacter pylori test (urease test, histopathologic examination, and/or culture) underwent eradication therapy...
November 23, 2016: Helicobacter
https://www.readbyqxmd.com/read/27878620/the-role-of-single-shot-metronidazole-in-the-prevention-of-clostridium-difficile-infection-following-ileostomy-reversal-surgery
#18
Roland Fernandes, Paul Robinson, Karan Rangarajan, Sophie Scott, Laura Angco
PURPOSE: Symptomatic infection with Clostridium difficile is strongly linked to antibiotic use and rates are higher for colorectal surgery. In February 2015, trust policy for antibiotic prophylaxis of ileostomy reversal surgery was changed from three doses of metronidazole plus cefuroxime to single-dose metronidazole, in a bid to reduce rates of Clostridium difficile infection. METHODS: A retrospective cohort study was conducted at a single, large hospital trust between February 2014 and February 2016, before and after change in antimicrobial policy...
November 23, 2016: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/27876993/a-unique-case-of-babesia-gibsoni-infected-dog-with-paraplegia
#19
Suresh Gonde, S Chhabra, S K Uppal, L D Singla, S S Randhawa
A 4 year old male Rottweiler was presented to Teaching Veterinary Clinics of GADVASU with a primary complaint of paraplegia, fever and inappetence. The dog was found to be dull with elevated rectal temperature (105 °F), heart rate (158 per minute) and respiration rate (57 per minute). Blood smear examination and PCR assay revealed that dog was positive for Babesia gibsoni. Elevated bilirubin, alanine aminotransferase, alkaline phosphatase, creatinine, total leucocyte count, neutrophils and hypoglycaemia were haemato-biochemical alterations...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27876915/effect-of-olive-leaf-satureja-khuzestanica-and-allium-sativum-extracts-on-giardia-lamblia-cysts-compared-with-metronidazole-in-vitro
#20
Sh Fallahi, A Rostami, B Delfan, Y Pournia, M Rashidipour
Giardia lamblia is one of the common causes of worldwide diarrhea in children. Appropriate medicinal treatment for giardiasis is available but there are some evidences of drug resistance, insufficient efficacy, and unpleasant side effects. In order to reach a more natural drug with suitable efficacy and the lowest side effects, the effects of the hydroalcoholic extracts of olive leaf, Satureja khuzestanica, and Allium sativum on G. lamblia cysts were evaluated in vitro, as well as antigiardial effect of the extracts was compared with metronidazole as the drug of choice...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
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