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Xin Fan, Fan Yang, Chuanxiong Nie, Ye Yang, Haifeng Ji, Chao He, Chong Cheng, Changsheng Zhao
Pathogenic bacterial infection has been becoming a global threat toward people's health, especially the massive usage of antibiotics due to the lack of antibacterial agents with less side effects. Developing new nanoagents to fight pathogenic bacteria has provided enormous new possibilities in the treatment of bacterial infections, such as graphene-based two-dimensional (2D) antibacterial nanoagents with different bacterial inhibition capabilities; however, mussel-inspired design of near-infrared (NIR)-responsive and biocompatible Ag-graphene nanoagents possessing efficient and versatile bacterial disinfection activities have rarely been reported...
January 10, 2018: ACS Applied Materials & Interfaces
Nagah Arafat, Ibrahim Abbas
A systematic study was undertaken to identify the species, characterize the pathogenicity, and assess the immunization of Eimeria bateri in Japanese quail ( Coturnix coturnix japonica). In total, 107 Japanese quail farms were examined. The samples were processed and oocyst shape indices of sporulated oocysts were determined. Out of 107 examined farms, 34 (31.78%) farms were positive. Four Eimeria spp. were morphologically identified. For characterization of the pathogenicity, Japanese quail were orally inoculated with various doses of sporulated oocysts of Eimeria bateri...
February 2018: Journal of Parasitology
H A Umar, I A Lawal, O O Okubanjo, A M Wakawa
The objective of the study was to identify the species, gross and histopathological lesions of Eimeria in Japanese quails in Zaria. A total of 400 fresh faecal samples were collected and 10 quail birds were purchased from a quail farm. The faecal samples were processed using simple floatation technique. Oocysts shape indices of sporulated oocysts were determined. The intestines were observed for gross lesions and segments were analyzed using Giemsa stain and Haematoxylin and Eosin stain and then observed microscopically for the developmental stages of the parasite...
2014: Journal of Veterinary Medicine
Tadla Vijeetha, Marrapu Balakrishna, Mallampalli Sri Lakshmi Karuna, Bhamidipati Venkata Surya Koppeswara Rao, Rachapudi Badari Narayana Prasad, Koochana Pranay Kumar, Upadyaula Surya Narayana Murthy
The study involved synthesis of five novel amino acid derivatives of phosphatidylethanolamine isolated from egg yolk lecithin employing a three step procedure i) N-protection of L-amino acids with BOC anhydride in alkaline medium ii) condensation of - CO2H group of N-protected amino acid with free -NH2 of PE by a peptide linkage and iii) deprotection of N-protected group of amino acids to obtain phosphatidylethanolamine-N-amino acid derivatives in 60-75% yield. The five L-amino acids used were L glycine, L-valine, L-leucine, L-isoleucine and L-phenylalanine...
2015: Journal of Oleo Science
Daniela Munteanu, Anca Negru, Mihaela Radulescu, Raluca Mihailescu, St S Arama, Victoria Arama
INTRODUCTION: The factors involved in the progression of liver disease towards decompensated cirrhosis are not completely elucidated. It seems that bacterial translocation (BT) from the gut to the systemic blood flow has an important role in the disease progression, but literature data are controversial. Our objectives were to evaluate the presence of BT in patients with chronic HCV infection and to assess the correlation between BT and liver fibrosis stages and inflammatory state. METHODS: We conducted a cross-sectional study on patients with chronic HCV infection in a tertiary care hospital between January and July 2013...
April 2014: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
R Sokół, M Gesek, M Raś-Noryńska, M Michalczyk
Coccidiosis is the most predominant parasitic disease affecting Japanese quails (Coturnix coturnix japonica) in commercial farms. Coccidiosis as a subclinical infection is difficult to diagnose without parasitological examinations. Oocysts of two Eimeria species, E. bateri and E. tsunodai, were determined in the analysed quail flock. Infected birds were administered Baycox 2.5% at the dose of: group I--7 mg toltrazuril/kg BW per day provided in drinking water (1.5 ml/0.5 1 H2O) that was available 24 h for 2 days, group II--14 mg/kg BW (3 ml/0...
2014: Polish Journal of Veterinary Sciences
Dou Li, You-Cai Zhao, Li-Yan Song, Ya-Jie Yin, Yang-Qing Wang, Zhong-Hui Xu
Cr(VI) has been causing serious environmental pollution due to its carcinogenicity, teratogenicity and strong migration. Reduction of Cr( VI) to Cr(III), a precipitation that is much less toxic, is an efficient strategy to control Cr pollution. Within the strategy, bacterial reduction of Cr(VI) to Cr(III) has been considered as one of the best bioremediation methods because of its efficiency, environment friendly, and low cost; however, the molecular mechanism remains large unknown. This review summarizes Cr(VI) reduction bacterial species and its application in pollution control, elaborates the pathways of Cr( VI) reduction and functional proteins involved, concludes the molecular mechanism of baterial reduction Cr(VI), and discusses the orientation of the future research...
April 2014: Huan Jing Ke Xue= Huanjing Kexue
Mei Yang, Zhuoya Wang, Wei Hao, Yanfang Wang, Li Huang, Jianpiao Cai, Lingxiao Jiang, Xiaoyan Che, Xiaozhu Zhong, Nan Yu
OBJECTIVE: To establish two double-antigen sandwich ELISA systems to detect anti-Afmp1cr and Afmp2cr antibodies of Aspergillus fumigatus. METHODS: Recombinant Afmp1cr and Afmp2cr proteins of A.fumigatus expressed in Pichia pastoris were obtained. Double-antigen sandwich ELISA systems for detecting specific anti-Afmp1cr and anti-Afmp2cr antibodies were developed after chessboard titrating to determine the appropriate concentrations of the recombinant proteins and HRP-labeled proteins...
May 2014: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Xiumei Sheng, Shungao Xu, Renyun Lu, Dadzie Isaac, Xueyi Zhang, Haifang Zhang, Huifang Wang, Zheng Qiao, Xinxiang Huang
Scientific experiments are indispensable parts of Biochemistry and Molecular Biology. In this study, a comprehensive Biochemistry and Molecular Biology experiment about Salmonella enterica serovar Typhi Flagellar phase variation has been designed. It consisted of three parts, namely, inducement of bacterial Flagellar phase variation, antibody agglutination test, and PCR analysis. Phase variation was observed by baterial motility assay and identified by antibody agglutination test and PCR analysis. This comprehensive experiment can be performed to help students improve their ability to use the knowledge acquired in Biochemistry and Molecular Biology...
May 2014: Biochemistry and Molecular Biology Education
Samuel K Kutty, Nicolas Barraud, Amy Pham, George Iskander, Scott A Rice, David StC Black, Naresh Kumar
Fimbrolides from marine algae have shown promising activity against quorum sensing (QS), a chief regulatory and communication system in bacteria controlling biofilm formation and virulence factor. Nitric oxide (NO) at sublethal concentration has also been reported to induce dispersal of bacterial biofilms and increase their susceptibility toward standard biocides and antibiotics. Therefore, the combination of QS inhibitors and NO donors has the potential to control the development of biofilm and promote their dispersion via a nonbactericidal mechanism...
December 12, 2013: Journal of Medicinal Chemistry
Gordana Nedić, Fran Borovecki, Natasa Klepac, Zdenko Mubrin, Sanja Hajnsek, Matea Nikolac, Dorotea Muck-Seler, Nela Pivac
A functional catechol-o-methyltransferase (COMT Val158/108Met) polymorphism, a valine (Val) to methionine (Met) substitution, has been associated with cognitive processing in the normal brain, older age, mild cognitive impairment and in various dementias. COMT is involved in the breakdown of dopamine and other catecholamines, especially in the frontal cortex; hence the carriers of Met allele, with the lower enzymatic activity, are expected to perform better on particular neuro-cognitive tests. The study included 46 patients with dementia and 65 healthy older subjects...
January 2011: Collegium Antropologicum
A Chantanao, H J Jensen
No abstract text is available yet for this article.
July 1969: Journal of Nematology
Bruno P Berto, Sergian V Cardozo, Walter L Teixeira Filho, Ana Maria R Ferreira, Carlos Wilson G Lopes
The purpose of this study was to characterize Eimeria bateri oocysts and to evaluate the aflatoxin effect in the morphometry of sporulated oocysts in Japanese quails infected naturally. Of a total of 50 quails naturally infected by E. bateri were randomly divided into two groups with 25 birds each. In one of them, quails were orally administered with aflatoxin in dose of 0.04 mg/kg body weight previously. Both experimental groups shed E. bateri oocysts. These oocysts were subspherical to ellipsoidal, 25.1 x 18...
October 2008: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
Guro Strandskog, Terje Ellingsen, Jorunn B Jørgensen
Oligodeoxynucleotides (ODNs) containing unmethylated CpG dinucleotides within specific sequence contexts (CpG motifs) are in humans divided into three distinct classes (A, B and C). The CpG ODNs, like baterial DNA, are recognized by the vertebrate immune system and are known to stimulate immune responses. The characterization of the different classes is based on their structure and biological activity. In this study, we report the effects of these classes of CpG ODNs as they are defined in humans on IFN alpha/beta production and cell proliferation in Atlantic salmon spleen, head kidney and blood leukocytes...
2007: Developmental and Comparative Immunology
Zeynel A. Karcioglu, Hassan Al-Ghamdi, Abdulkarim Al-Bateri, Assem Rostem
PURPOSE: To determine the radiation absorption properties (RAP) of three commonly used orbital implant materials, namely, methylmethacrylate (MM), hydroxyapatite (HA), and porous polyethylene (PP). METHODS: Eighteen (18)-mm spheres of MM, HA and PP were tested with 1.25 MV gamma-rays from cobalt-60, 6 MV X-rays, and 9 MeV, 12 MeV, and 16 MeV electron beams. The implants were immersed in a water phantom, and the measurements were obtained on X-omat V(R) film; the scanning was done with a computerized laser densitometer, CADSCAN(R)...
September 1998: Orbit
S M Lichtman
Bacterial translocation is a phenomenon in which live bacteria cross the intestinal barrier. The definition may be broadened to include transmural passage of bacterial cell wall components such as lipopolysaccharide and peptidoglycan polysaccharide. After translocation, bacteria or their products reach the mesenteric lymph nodes. From there, it is possible that enteric bacteria, their cell wall components, or both may disseminate throughout the body, causing sepsis, shock, multisystem organ dysfunction, or death of the host...
July 2001: Journal of Pediatric Gastroenterology and Nutrition
J P Verma, H Formanek
Mureins were isolated from two strains of Xanthomonas malvacearum, a phytopathogenic bacterium causing bacterial blight of cotton. The purity of murein was 70-95 % and the amino acid and amino sugar components (glutamic acid, alanina, meso-disminopimelic acid, muramic acid and glucosamine) were present at the molar ratio of 1:1.9:1:l.12.0.85. The bacterium secreted a copious amount of slime which masked itd surface structure. The slime was composed of densley interwoven network of filamentous material originating from the cell surface and extended into the medium without and discernable boundary...
1981: Folia Microbiologica
C C Norton, M A Peirce
No abstract text is available yet for this article.
February 1971: Journal of Protozoology
H L Shah, C A Johnson
No abstract text is available yet for this article.
May 1971: Journal of Protozoology
G F Mathis, L R McDougald
Experimental chicken/guinea fowl hybrids, guinea fowl, and chickens were orally inoculated with Eimeria acervulina or E. tenella, which are specific for chickens, or with E. grenieri, which is specific for guinea fowl. No intact oocysts were found in feces within 24 hr of inoculation, suggesting that excystation occurred in the normal and abnormal hosts. No oocysts were found in the feces of hybrids during a 9-day postinoculation period. The guinea fowl passed oocysts of guinea fowl coccidia (E. grenieri) but not those of chicken coccidia, and the chickens passed oocysts of chicken coccidia (E...
October 1987: Avian Diseases
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