scholarly journals Situação da tuberculose em ovinos consorciados com bovinos leiteiros na região sudoeste maranhense

2017 ◽  
Vol 84 (0) ◽  
Author(s):  
Rosiane de Jesus Barros ◽  
Roberto Soares de Castro ◽  
Nancyleni Pinto Chaves ◽  
Adriano Mendes Moura ◽  
Michelle Lemos Vargens ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Bacillus Sp ◽  
Actinomyces Pyogenes

RESUMO: Objetivando conhecer a situação da tuberculose ovina no Maranhão, avaliaram-se 343 ovinos da região sudoeste do estado, 247 fêmeas e 96 machos, com idade acima de 6 meses, por meio do teste cervical comparativo (TCC), com inoculação de tuberculinas na região cervical direita. Cranialmente, injetou-se derivado proteico purificado (PPD) aviário; e caudalmente, PPD bovino, em doses individuais de 0,1 mL. Todos os animais apresentaram resultado negativo para tuberculose, entretanto, 65 ovinos apresentaram reação à tuberculina bovina superior à aviária. Para investigar a possibilidade de baixa sensibilização ou anergia em animais com tuberculose avançada, foi necropsiado um ovino caquético, idade acima de quatro anos, com resultado negativo ao TCC, porém, com reação à tuberculina aviária e linfonodos aumentados com consistência endurecida. Os resultados indicaram infecções por C. pseudotuberculosis, Actinomyces pyogenes, Staphylococcus aureus e Mycobacterium sp. A cultura e o isolamento resultaram em Pseudomonas aeruginosas e Bacillus sp. Não foram visualizadas estruturas bacterianas compatíveis com bacilo álcool ácido resistente (BAAR). Os resultados confirmam ausência de animais reagentes ao M. bovis, pressupondo inexistência da tuberculose em ovinos na região estudada.

Efecto proapoptótico y antimetastásico en líneas tumorales humanas colorrectales de una proteína secretada por la bacteria Rizosférica Antártica Bacillus sp. K2I17

2019 ◽  
Author(s):  
Alequis Tomás Pavón Oro
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Staphylococcus Aureus ◽  
Candida Albicans ◽  
Deschampsia Antarctica ◽  
Bacillus Sp ◽  
E Coli ◽  
Cáncer Colorrectal

El cáncer es la segunda causa de muerte en el mundo, y específicamente en Chile el cáncer colorrectal es el único que presenta un aumento sostenido de la mortalidad en la última década. La búsqueda de nuevos agentes quimioterapeúticos anticancerígenos ha propuesto a los microorganismos extremófilos como una fuente potencial para obtener moléculas citotóxicas, que induzcan apoptosis en las células tumorales. Las condiciones extremas del continente antártico y las presiones selectivas por el espacio y los nutrientes que se producen entre los microorganismos del rizobioma de la planta Deschampsia antarctica Desv sugirieron como hipótesis que las bacterias rizosféricas aisladas en la Antártica secretan al sobrenadante de cultivo moléculas bioactivas que inhiben la invasión y proliferación de líneas tumorales humanas de origen colorrectal mediante un mecanismo apoptótico. En este sentido, el objetivo general del trabajo fue identificar y caracterizar a moléculas bioactivas con acción antinvasiva y antiproliferativa, además, determinar el mecanismo inhibitorio de la proliferación en líneas tumorales humanas de origen colorrectal. Los resultados del primer objetivo específico demostraron que los sobrenadantes de cultivo de los aislados rizosféricos antárticos K2 y MI disminuyeron la viabilidad de la línea celular de adenocarcinoma colorrectal LoVo en el ensayo de reducción metabólica del MTT. Además, como los sobrenadantes no tuvieron efecto en la viabilidad de las bacterias E. coli y Staphylococcus aureus, y tampoco en los hongos unicelulares Candida albicans y Saccharomyces cerevisiae, el resultado indicó que la actividad antiproliferativa fue selectiva hacia la línea celular LoVo.

scholarly journals ISOLASI BAKTERI DARI TANAH SEBAGAI PENGHASIL SENYAWA ANTIMIKROB

Biospecies ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 46-51
Author(s):  
Sukmawati Sukmawati ◽  
FEBRIANTI ROSALINA
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Bacillus Sp ◽  
E Coli

Antibiotik adalah bahan obat yang sangat memegang peranan penting dalam menanggulangi penyakit infeksi. Senyawa antimikroba dapat diperoleh dari tumbuh-tumbuhan, dan mikroba. Senyawa antimikrob yang dihasilkan oleh mikroba memiliki keunggulan dibandingkan dengan antibiotik sintetik karena memiliki sifat yang lebih efektif, sebab targetnya spesifik serta toksisitasnya rendah. Tujuan dari penelitian yang telah dilakukan ialah untuk mengisolasi bakteri dari tanah yang mampu menghasilkan senyawa antimikrob, serta untuk menguji aktivitas penghambtannya terhadap  pertumbuhan Escherichia coli dan Staphylococcus aureus. Metode yang telah digunakan dalam penelitian ini ialah isolasi, purifikasi, dan seleksi bakteri dari sampel tanah dengan metode uji penghambatan sedangkan bakteri Bacillus sp. Merupakan bakteri pembanding. Berdasarkan hasil penelitian yang diperoleh terdapat 2 isolat yang berpotensi memiliki aktivitas antimikroba yaitu isolat 1 dan isolate 4. Isolat 1 lebih berpotensi menghambat E. coli dengan indeks hambat 4.0 mm dibandingkan dengan penghambatan S. aureus dengan indeks hambat 3.1 mm. Sedangkan isolat 4 lebih berpotensi menghambat S. aureus dengan indeks hambat 2.8 mm dibandingkan dengan penghambatan terhadap E. coli dengan indeks hambat 1.4 mm.

scholarly journals Comparative study of the chemical composition and biological activities of the essential oils of Senecio gallicus from Tunisia.

2014 ◽  
Vol 10 (8) ◽  
pp. 3012-3021
Author(s):  
Mohamed Mihoubi ◽  
Wafa Mihoubi ◽  
Ali Gargouri ◽  
Raoudha Jarraya
Keyword(s):  
Mass Spectrometry ◽  
Staphylococcus Aureus ◽  
Gas Chromatography ◽  
Essential Oils ◽  
Biological Activities ◽  
Chemical Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Bacillus Sp ◽  
Moderate Effect ◽  
And Staphylococcus Aureus

The essential oils of flowers and remaining parts of the plant Senecio gallicus (Asteraceae), growing wild in Sfax (Tunisia), were obtained by hydrodistillation over a period of two years (2012 and 2013). Their analysis by Gas Chromatography-Mass Spectrometry (GC-MS), led to a total number of 36 components, belonging to different classes of chemical compounds. Oils compositions were characterized by the abundance of monoterpenes hydrocarbons, the major compounds present in flowers for the two years of study were  respectively the sabinene (49.45% and 28.86%), the α-pinene (9.67% and 9.1%), and the β-myrcene (9.88% and 10.97%). These compounds were also dominant in the essential oils of the plant without flowers where they represent (65.34% and 55%) for the sabinene, (4.14% and 7.3%) for α-pinene, and (6.86% and 0%) for β-myrcene. Obtained essential oils were tested for many biological activities and showed a moderate effect against the fungus Trichoderma reesei and bacteria such as Bacillus sp and Staphylococcus aureus. This study of the Senecio gallicus essential oils represents the first one in Tunisia.

scholarly journals POLA KEPEKAAN ISOLAT BAKTERI AEROB PADA RHINOSINUSITIS KRONIS

2017 ◽  
Vol 13 (1) ◽  
pp. 105
Author(s):  
Alvin Saputra ◽  
Nur Qamariah ◽  
Noor Muthmainah
Keyword(s):  
Staphylococcus Aureus ◽  
General Hospital ◽  
Chronic Rhinosinusitis ◽  
Staphylococcus Epidermidis ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Bacillus Sp ◽  
Cross Sectional ◽  
Staphylococcus Epidermis ◽  
Amoxicillin Clavulanate

Abstract: Chronic rhinosinusitis is an inflammation of the sinus mucosa caused by viruses or bacteria. Needed research on antibiotic susceptibility of the bacteria that cause chronic rhinosinusitis targeted antibiotics. The purpose of this study was to determine the sensitivity of some selected antibiotics against bacteria of different causes of chronic rhinosinusitis at the Department of Otolaryngology Ulin General Hospital Banjarmasin. This is a descriptive study with cross-sectional approach using diffusion method of Kirby-Bauer zone of inhibition was then compared with standard antibiotics against bacterial antibiotic inhibition zone according to CLSI 2016. The sample in this study were all patients with chronic rhinosinusitis who come for treatment to the Department of Otolaryngology Ulin General Hospital and Moch. Ansari Saleh General Hospital Banjarmasin in the period from June to August 2016. Obtained from 12 samples, 6 samples of Staphylococcus aureus, Staphylococcus epidermis 10 samples, 1 sample Eschirechia coli and 1 sample Bacillus sp. Staphylococcus aureus showed the highest sensitivity to antibiotics cefixime, cefuroxime, ciprofloxacin and clindamycin 66,6%, and the lowest amoxicillin clavulanate 50%. Staphylococcus epidermis showed the highest sensitivity to the antibiotic cefuroxime and clindamycin 100%, cefixime 50% and the lowest amoxicillin-clavulanate and cefuroxime 25%. Escherichia coli showed the highest sensitivity to the antibiotic amoxicillin-clavulanate and cefixime 100%, and the lowest cefuroxime, ciprofloxacin, and clindamycin 0%. Bacillus sp showed the highest sensitivity to the antibiotic cefuroxime, ciprofloxacin, and clindamycin 100% in the lowest 0% for amoxicillin and cefixime. Keywords : chronic rhinosinusitis, sensitivity test, antibiotics Abstrak: Rhinosinusitis kronis adalah peradangan pada mukosa sinus yang disebabkan oleh virus atau bakteri. Perlu adanya penelitian tentang kepekaan antibiotik terhadap kuman penyebab rhinosinusitis kronis agar pemberian antibiotik tepat sasaran. Dengan demikian, tujuan penelitian ini untuk mengetahui kepekaan beberapa antibiotik terpilih terhadap kuman penyabab rhinosinusitis kronis di Bagian THT RSUD Ulin dan RSUD Moch. Ansari Saleh Banjarmasin. Penelitian ini bersifat observasional dengan pendekatan cross sectional menggunakan metode difusi Kirby-Bauer kemudian dibandingkan zona hambat antibiotik terhadap bakteri dengan standar zona hambat antibiotik menurut CLSI 2016. Sampel dalam penelitian ini adalah semua pasien rhinosinusitis kronis yang datang berobat ke Bagian THT RSUD Ulin dan RSUD Moch. Ansari Saleh Banjarmasin pada periode Juni - Agustus 2016. Dari 12 sampel didapatkan, 6 sampel Staphylococcus aureus, 4 sampel Staphylococcus epidermidis, 1 sampel Eschirechia coli dan 1 sampel Bacillus sp. Staphylococcus aureus menujukkan kepekaan tertinggi terhadap antibiotik sefiksim, sefuroksim, siprofloksasim, dan klindamisin sebesar 66,6% serta yang terendah yakni amoksisilin klavulanat sebesar 50%. Staphylococcus epidermidis menujukkan kepekaan tertinggi terhadap antibiotik sefuroksim dan klindamisin sebesar 100%, sefiksim 50% serta yang terendah amoksisilin klavulanat dan sefuroksim sebesar 25%. Eschirechia coli menunjukkan kepekaan tertinggi terhadap antibiotik amoksisilin klavulanat dan sefiksim 100% serta terendah sefuroksim, siprofloksasim dan klindamisin 0%. Bacillus sp menunjukkan kepekaan tertinggi terhadap antibiotik sefuroksim, siprofloksasim, dan klindamisin sebesar 100% serta terendah amoksisilin klavulanat dan sefiksim 0%. Kata-kata kunci : rhinosinusitis kronis, uji kepekaan, antibiotic

scholarly journals Synthesis and antimicrobial activity of new adamantane derivatives I.

2000 ◽  
Vol 47 (1) ◽  
pp. 87-94 ◽  
Author(s):  
A Orzeszko ◽  
R Gralewska ◽  
B J Starościak ◽  
Z Kazimierczuk
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Minimal Inhibitory Concentration ◽  
Enterococcus Faecium ◽  
Inhibitory Concentration ◽  
Adamantane Derivatives ◽  
Bacillus Sp ◽  
Trimellitic Anhydride ◽  
Derivatives Of

A series of fourteen derivatives of adamantane was synthesised. The new compound 4-(adamant-1-ylmethoxycarbonyl)phthalanhydride obtained from 1-adamantane-methanol and trimellitic anhydride chloride appeared very useful for preparation of a number of N-substituted phthalimides. Antimicrobial activity of the newly obtained derivatives such as, for example, 4-(adamant-1-ylmethoxycarbonyl)-N-(5-carboxypentamethylene)p hthalimide or 4-(adamant-1-ylmethoxycarbonyl)-N-(L-alanyl)phthalimide was tested against Staphylococcus aureus, Bacillus sp., Micrococcus flavus and Enterococcus faecium. The minimal inhibitory concentration (MIC) for these compounds against S. aureus were 0.022 and 0.05 microg/ml, respectively.

scholarly journals Antimicrobial activity of cobalst(II) complexes with 2-aminobenzimidazole derivatives

2004 ◽  
pp. 231-238 ◽  
Author(s):  
Sanja Podunavac-Kuzmanovic ◽  
Dragoljub Cvetkovic ◽  
Gordana Cetkovic
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antimicrobial Activity ◽  
Complex Structure ◽  
Gram Negative Bacteria ◽  
Bacillus Sp ◽  
Yeast Saccharomyces Cerevisiae ◽  
Mic Value

Cobalt(II) chloride reacts with 2-aminobenzimidazole derivatives to give complexes of the formula [CoL2Cl2], where L=2-aminobenzimidazole 1-benzyl-2-aminobenzimidazole and 1-(4-methylbenzyl)-2-aminobenzimidazole. All the ligands and their cobalt(II) complexes were evaluated for their in vitro antimicrobial activity against Pseudomonas aeruginosa, Bacillus sp. Staphylococcus aureus, Sarcina lutea and Saccharomyces cerevisiae. The minimum inhibitory concentration (MIC) was determined for all ligands and their complexes. It was found that tested compounds were more active against gram-positive than gram-negative bacteria. None of the compounds were significantly effective against yeast Saccharomyces cerevisiae, except 2-aminobenzimidazole complex, which moderately inhibited the growth of yeast. 1-(4-methylbenzil)-2-aminobenzimidazole was found to be slightly active against Saccharomyces cerevisiae. The same ligand showed the lowest MIC value of 60 (g/ml against Pseudomonas aeruginosa, as well as 125 (g/ml, against Bacillus sp. and Sarcina lutea. The MIC value of its cobalt(II) complex was 60 (g/ml against Pseudomonas aeruginosa. Cobalt(II) complex with 1-benzyl-2-aminobenzimidazole showed the lowest MIC value of 60 (g/ml against Staphylococcus aureus. The effect of ligand and complex structure on the antimicrobial activity was discussed.

Detection of the Active Compounds of the Hot Aqueous Extract of Cinnamomum cassia using FTIR Technology and Testing as Anti-bacterial and Antioxidant

2021 ◽  
Vol 8 (6) ◽  
pp. 95-101
Author(s):  
Afnan I. Abdulwahab
Keyword(s):  
Staphylococcus Aureus ◽  
Aqueous Extract ◽  
Inhibitory Activity ◽  
Bacillus Sp ◽  
Ftir Analysis ◽  
Bacterial Strains ◽  
Active Compounds ◽  
Cinnamon Bark ◽  
Cinnamomum Cassia ◽  
Inhibitory Ability

The results of the FTIR analysis of the hot aqueous extract of bark indicated that it contains many groups and active compounds, and the results of the bacterial tests conducted by digging and spreading method showed a high inhibitory activity of the hot aqueous extract of cinnamon against all pathogenic bacterial strains and at different concentrations. It was observed that the highest efficacy of the extract was against bacteria an inhibition diameter of 35 mm at concentration 800 mg/mL in Bacillus sp. while the bacterial strains were resistant to most of the antibiotics, in the study (Amoxicillin, Gentamycin, Ampicillin, Erythromycin, Tetracycline) except for gentamicin, which showed inhibition of bacteria Staphylococcus aureus with a diameter 19mm and Serratia sp. in diameter17mm. We conclude from the study that the cinnamon plant contains many active compounds and that the hot aqueous extract of Cinnamomum cassia (cinnamon) bark has a high inhibitory ability for different bacterial strains, which exceeded the inhibitory ability of antibiotics.

scholarly journals Biodegradation of textile dyes by bacteria isolated from textile industry effluents

2020 ◽  
Vol 9 (1) ◽  
pp. 5-8
Author(s):  
Khusbu Akter ◽  
Tamanna Zerin ◽  
Avijit Banik
Keyword(s):  
Staphylococcus Aureus ◽  
Textile Industry ◽  
Biochemical Analysis ◽  
Synthetic Dyes ◽  
Bacillus Sp ◽  
Pollution Problem ◽  
Agar Media ◽  
Textile Industries ◽  
Living Organisms ◽  
And Staphylococcus Aureus

A country like Bangladesh where textile industries are the main source of developing economy, pollution problem from such industries creates a huge risk for the environment. Textile industries discharge a huge amount of effluent containing various harmful chemicals including synthetic dyes that are very stable and threat to the living organisms. This study deals with the potential decolorization and biodegradation of Bemacron Yellow HP-2R (BY), Bemacron Red RS (BR) and Bemacron blue RS 01 (BB) dyes using bacteria isolated from textile effluent. The effluent and soil samples were collected from different locations of discharge point. Only two isolates were screened out after primary screening using dye supplemented nutrient agar media. Following colony morphology, physiology and biochemical analysis, they were presumptively identified as Bacillus sp. and Staphylococcus aureus. They were subjected to decolorization of 0.002 g/l BY, BR and BB dyes. Bacillus sp. showed superior decolorization potential of BR (71%) and BB (83%) dyes after 5 days of incubation. Whereas, Staphylococcus aureus showed 79% decolorization of BY dye after 5 days incubation. Decolorization efficacy can be further improved by optimizing environmental conditions and process parameters. Stamford Journal of Microbiology, Vol.9(1) 2019: 5-8

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