Orquiepididimitis por Haemophilus parainfluenzae: caso clínico y revisión de la literatura / Orchiepididymitis due to Haemophilus parainfluenzae: case report and review of the literature / Orquiepididimite por Haemophilus parainfluenzae: caso clínico e revisão da literatura

Resumen Haemophilus parainfluenzae forma parte de la microbiota normal de la cavidad oral y del tracto respiratorio superior. Es un reconocido agente causal de endocarditis y, con menor frecuencia, de enfermedades como neumonía, sepsis, osteomielitis, celulitis, meningitis y gastroenteritis aguda. Aquí se presenta un caso de orquiepididimitis en un joven adulto donde H. parainfluenzae, confirmado por espectrometría de masas (MALDI-TOF MS), fue el único patógeno detectado. Este caso contribuye a valorar el rol de H. parainfluenzae como patógeno humano, aislado a partir de sitios diferentes del torrente sanguíneo y las vías respiratorias.

Abstract Haemophilus parainfluenzae is part of the normal microbiota of the oral cavity and the upper respiratory tract. It is a recognised causal agent of endocarditis and, less frequently, of diseases such as pneumonia, sepsis, osteomyelitis, cellulitis, meningitis, and acute gastroenteritis. A case of orchiepididymitis in a young adult is reported, where H. parainfluenzae, confirmed by mass spectrometry (MALDI-TOF MS), was the only pathogen detected. This case contributes to assess the role of H. parainfluenzae as a human pathogen, isolated from sites other than the bloodstream and the respiratory tract.

Resumo Haemophilus parainfluenzae faz parte da microbiota normal da cavidade oral e do trato respiratório superior. É um reconhecido agente causal de endocardite e, menos frequentemente, de doenças como pneumonia, sepse, osteomielite, celulite, meningite e gastroenterite aguda. Aqui é relatado um caso de orquiepididimite em um adulto jovem onde H. parainfluenzae, confirmado por espectrometria de massa (MALDI-TOF MS), foi o único patógeno detectado. Este caso contribui para avaliar o papel do H. parainfluenzae como patógeno humano, isolado de outros locais que não sejam a corrente sanguínea e o trato respiratório.

Comparison of Epsilometer test and agar dilution method in detecting the sensitivity of Helicobacter pylori to metronidazole / 北京大学学报(医学版)

OBJECTIVE@#Agar dilution method (ADM) was used as the golden standard to evaluate the consistency of Epsilometer test (E-test) in detecting the sensitivity of Helicobacter pylori (H. pylori) to metronidazole.@*METHODS@#From August 2018 to July 2020, patients with H. pylori infection treated for the first time in Peking University Third Hospital for gastroscopy due to dyspepsia were included in this study. Gastric mucosas were taken from the patients with H. pylori infection. H. pylori culture was performed. Both the ADM and E-test were applied to the antibiotic susceptibility of H. pylori to metro-nidazole, and the consistency and correlation between the two methods were validated.@*RESULTS@#In the study, 105 clinical isolates of H. pylori were successfully cultured, and the minimum inhibitory concentration ≥ 8 mg/L was defined as drug resistance. Both ADM and the E-test showed high resistance rates to metronidazole, 64.8% and 62.9%, respectively. Among them, 66 drug-resistant strains were detected by ADM and E-test, and 37 were sensitive strains, so the consistency rate was 98.1%. Two strains were evaluated as drug resistance by ADM, but sensitive by the E-test, with a very major error rate of 1.9%. There was zero strain sensitive according to ADM but assessed as resistant by the E-test, so the major error rate was 0%. Taking ADM as the gold standard, the sensitivity of E-test in the detection of metronidazole susceptibility was 97.1% (95%CI: 0.888-0.995), and the specificity was 100% (95%CI: 0.883-1.000). Cohen's kappa analysis showed substantial agreement, and kappa coefficient was 0.959 (95%CI: 0.902-1.016, P < 0.001). Spearmans correlation analysis confirmed this correlation was significant (r=0.807, P < 0.001). The consistency evaluation of Bland-Altman method indicated that it was good, and there was no measured value outside the consistency interval. In this study, cost analysis, including materials and labor, showed a 32.2% higher cost per analyte for ADM as compared with the E-test (356.6 yuan vs. 269.8 yuan).@*CONCLUSION@#The susceptibility test of H. pylori to metronidazole by E-test presents better agreement with ADM. Because it is less expensive, less labor intensive, and more rapid, it is an easy and reliable method for H. pylori susceptibility testing.

Evaluation of antibacterial activity of vitamin C against human bacterial pathogens / Avaliação da atividade antibacteriana da vitamina C contra patógenos bacterianos humanos

Now a day’s multidrug resistance phenomenon has become the main cause for concern and there has been an inadequate achievement in the development of novel antibiotics to treat the bacterial infections. Therefore, there is an unmet need to search for novel adjuvant. Vitamin C is one such promising adjuvant. The present study was aimed to elucidate the antibacterial effect of vitamin C at various temperatures (4°C, 37°C and 50°C) and pH (3, 8, and 11), against Gram-positive and Gram-negative bacteria at various concentrations (5-20 mg/ml) through agar well diffusion method. Growth inhibition of all bacterial strains by vitamin C was concentration-dependent. Vitamin C significantly inhibited the growth of Gram-positive bacteria: Bacillus licheniformis (25.3 ± 0.9 mm), Staphylococcus aureus (22.0 ± 0.6 mm), Bacillus subtilis (19.3 ± 0.3 mm) and Gram-negative bacteria: Proteus mirabilis (27.67 ± 0.882 mm), Klebsiella pneumoniae (21.33±0.9 mm), Pseudomonas aeruginosa (18.0 ± 1.5 mm) and Escherichia coli (18.3 ± 0.3 mm). The stability of vitamin C was observed at various pH values and various temperatures. Vitamin C showed significant antibacterial activity at acidic pH against all bacterial strains. Vitamin C remained the stable at different temperatures. It was concluded that vitamin C is an effective and safe antibacterial agent that can be used in the future as an adjunct treatment option to combat infections in humans.

Agora, a resistência antimicrobiana de um dia em patógenos aos antibióticos tornou-se a principal causa de preocupação e houve uma realização inadequada no desenvolvimento de novos antibióticos para tratar infecções bacterianas. Portanto, há uma necessidade de pesquisar um novo adjuvante, e a vitamina C é um desses adjuvantes promissores. O objetivo do presente estudo foi elucidar o efeito antibacteriano da vitamina C em diferentes temperaturas (4 °C, 37 °C e 50 °C) e pH (3, 8 e 11), contra Gram-positivos e Gram-cepas bacterianas negativas em várias concentrações (5-20 mg / ml) através do método de difusão em ágar bem. A inibição do crescimento de todas as cepas bacterianas pela vitamina C era dependente da concentração. A vitamina C inibiu significativamente o crescimento de bactérias Gram-positivas: Bacillus licheniformis (25,3 ± 0,9 mm), Staphylococcus aureus (22,0 ± 0,6 mm), Bacillus subtilis (19,3 ± 0,3 mm) e bactérias Gram- negativas: Proteus mirabilis (27,7 ± 0,9 mm), Klebsiella pneumoniae (21,3 ± 0,9 mm), Pseudomonas aeruginosa (18,0 ± 1,5 mm) e Escherichia coli (18,3 ± 0,3 mm). A estabilidade da vitamina C foi observada em vários valores de pH e várias temperaturas. A vitamina C mostrou atividade antibacteriana significativa em pH ácido contra todas as cepas bacterianas. A estabilidade da vitamina C permaneceu nas mesmas diferentes temperaturas (4 °C, 37 °C e 50 °C). Concluímos que a vitamina C é um agente antibacteriano eficaz e seguro que pode ser usado no futuro como uma opção de tratamento auxiliar para combater infecções em humanos, pois pode apoiar o sistema imunológico diretamente.

Range of factors in the reduction of hyperhydricity associated with in vitro shoots of Salvia santolinifolia Bioss / Gama de fatores na redução da hiperidricidade associada a brotos in vitro de Salvia santolinifolia Bioss

Hyperhydricity is a serious physiological disorder and affects In vitro propagation of many plants and as well of Salvia santolinifolia. The donor material to initiate the in vitro culture was the callus taken from the in vitro shoots produced on Murashig and Skoogs (MS) medium at 4.0 mg/l BA. This callus formed numerous hyperhydric shoots on culturing upon the medium of the same composition. The aim was to systematically evaluate the effect of cytokinins (Benzyladnine (BA) and N6-(-2-isopentenyl) adenine (2iP), culture vessels magnitude, medium solidification, source of nitrogen and calcium chloride for the alleviation of hyperhydricity. In the tissue cultures of S. santolinifolia BA and 2iP induced severe hyperhydricity, when other factors i.e. culture vessels magnitude and a suitable concentration of agar, ammonium nitrate (NH4NO3), potassium nitrate (KNO3) & calcium chloride (CaCl2.2H2O) were not optimized. After 30 days' culture, we observed 83.82% hyperhydric shoots at increased level (1.5 mg/l 2iP) and 81.59% at decreased levels (1.0 mg/l 2iP). On the other hand, hyperhydricity percentage at decreased (0.4%) and at increased (0.8%) levels of agar were 72.37% and 39.08%, respectively. MS medium modification with NH4NO3 (412 mg/l), KNO3 (475 mg/l) and CaCl2.2H2O (880 mg/l) was found the best medium to reduced hyperhydricity (23.6%).

A hiperidricidade é um distúrbio fisiológico sério e afeta a propagação in vitro de muitas plantas e também da Salvia santolinifolia. O material doador para iniciar a cultura in vitro foi o calo retirado dos brotos in vitro produzidos em meio Murashig e Skoogs (MS) a 4,0 mg / l BA. Esse calo formou numerosos rebentos hiperídricos em cultura no meio da mesma composição. O objetivo foi avaliar sistematicamente o efeito das citocininas (Benziladnina (BA) e N6 - (- 2-isopentenil) adenina (2iP), magnitude dos vasos de cultura, solidificação do meio, fonte de nitrogênio e cloreto de cálcio para o alívio da hiperidricidade. culturas de tecidos de S. santolinifolia BA e 2iP induziram hiperidricidade severa, quando outros fatores, como magnitude dos vasos de cultura e uma concentração adequada de ágar, nitrato de amônio (NH4NO3), nitrato de potássio (KNO3) e cloreto de cálcio (CaCl2.2H2O), não foram otimizados. Após 30 dias de cultura, observamos 83,82% de brotos hiperídricos em níveis aumentados (1,5 mg / l 2iP) e 81,59% em níveis reduzidos (1,0 mg / l 2iP). Por outro lado, a porcentagem de hiperidricidade diminuiu (0,4%) e em níveis aumentados (0,8%) de ágar foram 72,37% e 39,08%, respectivamente. A modificação do meio MS com NH4NO3 (412 mg / l), KNO3 (475 mg / l) e CaCl2.2H2O (880 mg / l) foi encontrada melhor hiperidricidade média a reduzida (23,6%).

Evaluation of antibacterial activity of vitamin C against human bacterial pathogens

Abstract Now a days multidrug resistance phenomenon has become the main cause for concern and there has been an inadequate achievement in the development of novel antibiotics to treat the bacterial infections. Therefore, there is an unmet need to search for novel adjuvant. Vitamin C is one such promising adjuvant. The present study was aimed to elucidate the antibacterial effect of vitamin C at various temperatures (4°C, 37°C and 50°C) and pH (3, 8, and 11), against Gram-positive and Gram-negative bacteria at various concentrations (5-20 mg/ml) through agar well diffusion method. Growth inhibition of all bacterial strains by vitamin C was concentration-dependent. Vitamin C significantly inhibited the growth of Gram-positive bacteria: Bacillus licheniformis (25.3 ± 0.9 mm), Staphylococcus aureus (22.0 ± 0.6 mm), Bacillus subtilis (19.3 ± 0.3 mm) and Gram-negative bacteria: Proteus mirabilis (27.67 ± 0.882 mm), Klebsiella pneumoniae (21.33±0.9 mm), Pseudomonas aeruginosa (18.0 ± 1.5 mm) and Escherichia coli (18.3 ± 0.3 mm). The stability of vitamin C was observed at various pH values and various temperatures. Vitamin C showed significant antibacterial activity at acidic pH against all bacterial strains. Vitamin C remained the stable at different temperatures. It was concluded that vitamin C is an effective and safe antibacterial agent that can be used in the future as an adjunct treatment option to combat infections in humans.

Resumo Agora, a resistência antimicrobiana de um dia em patógenos aos antibióticos tornou-se a principal causa de preocupação e houve uma realização inadequada no desenvolvimento de novos antibióticos para tratar infecções bacterianas. Portanto, há uma necessidade de pesquisar um novo adjuvante, e a vitamina C é um desses adjuvantes promissores. O objetivo do presente estudo foi elucidar o efeito antibacteriano da vitamina C em diferentes temperaturas (4 °C, 37 °C e 50 °C) e pH (3, 8 e 11), contra Gram-positivos e Gram-cepas bacterianas negativas em várias concentrações (5-20 mg / ml) através do método de difusão em ágar bem. A inibição do crescimento de todas as cepas bacterianas pela vitamina C era dependente da concentração. A vitamina C inibiu significativamente o crescimento de bactérias Gram-positivas: Bacillus licheniformis (25,3 ± 0,9 mm), Staphylococcus aureus (22,0 ± 0,6 mm), Bacillus subtilis (19,3 ± 0,3 mm) e bactérias Gram- negativas: Proteus mirabilis (27,7 ± 0,9 mm), Klebsiella pneumoniae (21,3 ± 0,9 mm), Pseudomonas aeruginosa (18,0 ± 1,5 mm) e Escherichia coli (18,3 ± 0,3 mm). A estabilidade da vitamina C foi observada em vários valores de pH e várias temperaturas. A vitamina C mostrou atividade antibacteriana significativa em pH ácido contra todas as cepas bacterianas. A estabilidade da vitamina C permaneceu nas mesmas diferentes temperaturas (4 °C, 37 °C e 50 °C). Concluímos que a vitamina C é um agente antibacteriano eficaz e seguro que pode ser usado no futuro como uma opção de tratamento auxiliar para combater infecções em humanos, pois pode apoiar o sistema imunológico diretamente.

Range of factors in the reduction of hyperhydricity associated with in vitro shoots of Salvia santolinifolia Bioss

Abstract Hyperhydricity is a serious physiological disorder and affects In vitro propagation of many plants and as well of Salvia santolinifolia. The donor material to initiate the in vitro culture was the callus taken from the in vitro shoots produced on Murashig and Skoogs (MS) medium at 4.0 mg/l BA. This callus formed numerous hyperhydric shoots on culturing upon the medium of the same composition. The aim was to systematically evaluate the effect of cytokinins (Benzyladnine (BA) and N6-(-2-isopentenyl) adenine (2iP), culture vessels magnitude, medium solidification, source of nitrogen and calcium chloride for the alleviation of hyperhydricity. In the tissue cultures of S. santolinifolia BA and 2iP induced severe hyperhydricity, when other factors i.e. culture vessels magnitude and a suitable concentration of agar, ammonium nitrate (NH4NO3), potassium nitrate (KNO3) & calcium chloride (CaCl2.2H2O) were not optimized. After 30 days culture, we observed 83.82% hyperhydric shoots at increased level (1.5 mg/l 2iP) and 81.59% at decreased levels (1.0 mg/l 2iP). On the other hand, hyperhydricity percentage at decreased (0.4%) and at increased (0.8%) levels of agar were 72.37% and 39.08%, respectively. MS medium modification with NH4NO3 (412 mg/l), KNO3 (475 mg/l) and CaCl2.2H2O (880 mg/l) was found the best medium to reduced hyperhydricity (23.6%).

Resumo A hiperidricidade é um distúrbio fisiológico sério e afeta a propagação in vitro de muitas plantas e também da Salvia santolinifolia. O material doador para iniciar a cultura in vitro foi o calo retirado dos brotos in vitro produzidos em meio Murashig e Skoogs (MS) a 4,0 mg / l BA. Esse calo formou numerosos rebentos hiperídricos em cultura no meio da mesma composição. O objetivo foi avaliar sistematicamente o efeito das citocininas (Benziladnina (BA) e N6 - (- 2-isopentenil) adenina (2iP), magnitude dos vasos de cultura, solidificação do meio, fonte de nitrogênio e cloreto de cálcio para o alívio da hiperidricidade. culturas de tecidos de S. santolinifolia BA e 2iP induziram hiperidricidade severa, quando outros fatores, como magnitude dos vasos de cultura e uma concentração adequada de ágar, nitrato de amônio (NH4NO3), nitrato de potássio (KNO3) e cloreto de cálcio (CaCl2.2H2O), não foram otimizados. Após 30 dias de cultura, observamos 83,82% de brotos hiperídricos em níveis aumentados (1,5 mg / l 2iP) e 81,59% em níveis reduzidos (1,0 mg / l 2iP). Por outro lado, a porcentagem de hiperidricidade diminuiu (0,4%) e em níveis aumentados (0,8%) de ágar foram 72,37% e 39,08%, respectivamente. A modificação do meio MS com NH4NO3 (412 mg / l), KNO3 (475 mg / l) e CaCl2.2H2O (880 mg / l) foi encontrada melhor hiperidricidade média a reduzida (23,6%).

Range of factors in the reduction of hyperhydricity associated with in vitro shoots of Salvia santolinifolia Bioss / Gama de fatores na redução da hiperidricidade associada a brotos in vitro de Salvia santolinifolia Bioss

Abstract Hyperhydricity is a serious physiological disorder and affects In vitro propagation of many plants and as well of Salvia santolinifolia. The donor material to initiate the in vitro culture was the callus taken from the in vitro shoots produced on Murashig and Skoogs (MS) medium at 4.0 mg/l BA. This callus formed numerous hyperhydric shoots on culturing upon the medium of the same composition. The aim was to systematically evaluate the effect of cytokinins (Benzyladnine (BA) and N6-(-2-isopentenyl) adenine (2iP), culture vessels magnitude, medium solidification, source of nitrogen and calcium chloride for the alleviation of hyperhydricity. In the tissue cultures of S. santolinifolia BA and 2iP induced severe hyperhydricity, when other factors i.e. culture vessels magnitude and a suitable concentration of agar, ammonium nitrate (NH4NO3), potassium nitrate (KNO3) & calcium chloride (CaCl2.2H2O) were not optimized. After 30 days' culture, we observed 83.82% hyperhydric shoots at increased level (1.5 mg/l 2iP) and 81.59% at decreased levels (1.0 mg/l 2iP). On the other hand, hyperhydricity percentage at decreased (0.4%) and at increased (0.8%) levels of agar were 72.37% and 39.08%, respectively. MS medium modification with NH4NO3 (412 mg/l), KNO3 (475 mg/l) and CaCl2.2H2O (880 mg/l) was found the best medium to reduced hyperhydricity (23.6%).

Resumo A hiperidricidade é um distúrbio fisiológico sério e afeta a propagação in vitro de muitas plantas e também da Salvia santolinifolia. O material doador para iniciar a cultura in vitro foi o calo retirado dos brotos in vitro produzidos em meio Murashig e Skoogs (MS) a 4,0 mg / l BA. Esse calo formou numerosos rebentos hiperídricos em cultura no meio da mesma composição. O objetivo foi avaliar sistematicamente o efeito das citocininas (Benziladnina (BA) e N6 - (- 2-isopentenil) adenina (2iP), magnitude dos vasos de cultura, solidificação do meio, fonte de nitrogênio e cloreto de cálcio para o alívio da hiperidricidade. culturas de tecidos de S. santolinifolia BA e 2iP induziram hiperidricidade severa, quando outros fatores, como magnitude dos vasos de cultura e uma concentração adequada de ágar, nitrato de amônio (NH4NO3), nitrato de potássio (KNO3) e cloreto de cálcio (CaCl2.2H2O), não foram otimizados. Após 30 dias de cultura, observamos 83,82% de brotos hiperídricos em níveis aumentados (1,5 mg / l 2iP) e 81,59% em níveis reduzidos (1,0 mg / l 2iP). Por outro lado, a porcentagem de hiperidricidade diminuiu (0,4%) e em níveis aumentados (0,8%) de ágar foram 72,37% e 39,08%, respectivamente. A modificação do meio MS com NH4NO3 (412 mg / l), KNO3 (475 mg / l) e CaCl2.2H2O (880 mg / l) foi encontrada melhor hiperidricidade média a reduzida (23,6%).

AGAR / CHITOSAN BLENDS FOR THE PREPARATION OF NOVEL HYDROGELS FOR PH SENSING, UREA ADSORPTION AND DYE ADSORPTION

Hydrogel posses a degree of flexibility very similar to natural tissues, due to their significant water content. Thus they find potential biomedical applications owing to their excellent bio-compatibility, bio degradability and non toxicity. The main highlight of the work is that it is taking naturally occurring polymers such as agar and Chitosan for the synthesis of hydrogel. Different compositions of Chitosan/Agar hydrogels were formulated and optimised with respect to pH sensing, Urea absorption and dye adsorption. Chitosan/Agar hydrogels are found to be suitable and a potential candidate for several agricultural and bio medical applications

Isolation of Enterococcus spp. in various clinical sample and their antimicrobial resistant pattern with MIC of vancomycin in patient attending tertiary care centre, RIMS, Ranchi, Jharkhand

Introduction- Enterococci are part of normal intestinal flora of humans and animals but have also emerged as important pathogens responsible for serious infections in hospital and community acquired infections.it is second most common cause of nosocomial infections in gastrointestinal tract, wound and genitourinary tract. To process all the clinicalAim- samples from various department in our hospital, for isolation of Enterococci spp. To speciate the isolates & to have resistance pattern of the isolates of vancomycin total 926 sample were collected from both outMaterial & Methods- patients and in patient in all clinical departments and transported to microbiology laboratory. specimens were processed by inoculating on to blood agar, MacConkey Agar, nutrient agar, potassium tellurite agar and incubated at 37°C for24-48 hr. Enterococci were identified by their typical arrangement in and salt tolerance test Gram stain, bile esculin test and biochemical tests. Antimicrobial susceptibility patterns were determined by performing Kirby-Bauer disc diffusion method and Minimum inhibitory concentration (MIC) values were identified by tube dilution methods. Result- a total of 926 sample, 645 (69.72%) were culture positive and 281 (30.28%) were culture negative. Among 645 culture positive cases, 81(12.55%) were Enterococcus faecalis. Antimicrobial susceptibility & MIC done as per standard protocols. The E. Faecalis showed 99% sensitive to Vancomycin. the resistance to vancomycin was 1% & further confirmed by MIC via tube dilution methods. In which MIC was ?32 ?g/ml in one isolate. About 8 of Enterococcal strains showed MIC of 0.0125?g/ml. species level identification of Enterococcus is important forConclusions- epidemiological study and also for analysis of drug resistant pattern. Effective detection of vancomycin resistance helps in reducing the morbidity and mortality of VRE in hospitalized patients

Toxicity of Herbicide, Paraquat Dichloride and Insecticide, Lambda-cyhalothrin on Phosphate Solubilizing Bacteria, Pantoa dispersa in Aquatic Ecosystems

Aim: The study was aimed to determine the toxicity of paraquat dichloride and lambda-cyhalothrin on phosphate solubilizing bacteria, Pantoa dispersa in aquatic ecosystems.Study Design: This study employs randomized block design, statistical analysis of the data and interpretation.Place and Duration of the Study: Soil sample was collected from the root nodules of leguminous plants in a sterile polythene bag from the Elele, in Etche L.G.A, Rivers State. The fresh water sample was collected from Bane town in Khana L.G.A, brackish water sample was collected from Choba river in Obio/Akpor L.G.A while the marine water was collected from Bonny River of Bonny L.G.A., all of Rivers State, Nigeria. The samples were collected aseptically and transported in an ice-pack immediately to the Rivers State University, Microbiology laboratory for analysis. The study lasted for three months.Methodology: The bacterium, Pantoa dispersa was isolated and identified based on conventional and molecular characterization from water and soil samples. Different concentrations (3.13%, 6.25, 12.50, 25.00%, 50.00% and 75.00%) and the control (0%) of the herbicide (paraquat dichloride) and insecticide, Lambda-cyhalothrin were prepared using fresh, brackish and marine water samples and 10ml of the test organism, Pantoa dispersa was introduced and the survival count was determined at 0, 4hr, 8hr, 12hr and 24hr. The Mean Lethal Concentration (LC50) of the insecticide and herbicide on Pantoa dispersa in the three aquatic ecosystem was determined.Results: The LC50 of the herbicide (Paraquat dichloride) was recorded as 15.8% in brackish water, 17.37% in fresh water and 27.44% in marine water. While the LC50 of the insecticide, Lambda-cyhalothrin to Pantoa dispersa was 26.84% in fresh water, 27.26% in brackish water and 32.33% in marine water.Conclusion: From the study, the herbicide, Paraquat dichloride was more toxic in the three aquatic ecosystems compared to the insecticide, Lambda-cyhalothrin. The use of these agrochemicals should be monitored as they result in the mortality of beneficial soil bacteria like Pantoa dispersa which is phosphate solubilizing bacteria in aquatic ecosystems.

Differentiation of Oral Candida Species in Chronic Renal Failure Patients Undergoing Hemodialysis

Background: Oral candidiasis occur as an opportunistic infection. The transition of candida from commensal to pathogen is often associated with immune- compromised chronic renal patients receiving hemodialysis. Candida species identification and differentiation is important for treatment in these patients. Aim: To differentiate candida species present in the oral cavity of chronic renal failure patients undergoing hemodialysis. Material and Methods: A total of 120 individuals with study group (n=60) of chronic renal failure patients undergoing hemo- dialysis (CRF with HD) and control group (n=60) healthy individuals, were studied. Salivary samples were cultured for candida species using Sabouraud’s Dextrose Agar (SDA) and CHROM agar culture media, for the growth of candida species in 24, 48 to 72 hours at 37ºC. Colonies were counted and quantitatively expressed as colony forming units/milliliter (CFU). Results: Positive candidal growth was seen on SDA and CHROM agar medium among CRF with HD and Control Groups, can- dida species were present in 55 (91.6%) and absent in 5(8.3%) and 57(95%) and absent 3(5%) in individuals respectively. Can- dida species differentiation in CRF with HD and Control groups were C. albicans (green colonies), C. Kruzei (pink colonies) and C. Tropicalis (blue colonies) were 46(81.6%), 6(10.0%), 2(3.3%) in CRF with HD cases while 45(75%) 11(18.3%) and 0(0%) in control cases respectively. Conclusion: Isolation and differentiation of candida was highly significant (p<0.05) in chronic renal failure patients undergoing hemodialysis than healthy individuals.

First record of antibodies to the bluetongue virus in ewe (Ovis aries) in the state of Amazonas, Brazil / Primeiro registro de anticorpos para o vírus da língua azul em ovino (Ovis aries) no estado do Amazonas, Brasil

The objective of this work was to describe the first record of antibodies to the Bluetongue Virus (BTV) in ewe, in the state of Amazonas. The ewe, which was in twin pregnancy, gave birth on May 9, 2015, but a lamb died hours after delivery. Veterinary service was then requested by the owner, where emaciation, loss of wool, pyrexia, apathy, dyspnea, mucoid nasal secretion, facial, lingual and submandibular edema were observed. There was a visit by the Agricultural Defense Agency of the State of Amazonas to the property and blood samples were collected from the animal. The whole blood and serum were sent to the National Agricultural Laboratory, where it was possible to detect the presence of specific antibodies to BTV, through the Agar Gel Double Immunodiffusion. The ewe was submitted to a new blood collection, following the same protocols and the samples were sent to the Biological Institute of São Paulo, confirmed diagnosis. The animal in a serious clinical condition, could not resist and died in July 2015. The occurrence of an allochthonous case, in an area where vector insects occur, can trigger an endemic process in the Amazon region. With this, the epidemiological control of these occurrences is necessary, in order to avoid the spread of the disease in the country.

O objetivo do trabalho foi descrever o primeiro registro de anticorpos para o Vírus da Língua Azul (VLA) em ovino, no estado do Amazonas. A ovelha, que se encontrava em gestação gemelar, pariu no dia 9 de maio de 2015, porém um cordeiro faleceu horas após o parto. Foi então solicitado serviço veterinário por parte do proprietário, onde foi observado emaciação, perda de lã, pirexia, apatia, dispneia, secreção nasal mucoide, edema facial, lingual e submandibular. Houve visita da Agência de Defesa Agropecuária do Estado do Amazonas na propriedade e coletadas amostras de sangue do animal. O sangue total e soro foram enviados ao Laboratório Nacional Agropecuário, no qual foi possível detectar a presença de anticorpos específicos para VLA, através do teste de Imunodifusão Dupla em Gel de Ágar. A ovelha foi submetida a uma nova coleta de sangue, seguindo os mesmos protocolos e as amostras foram enviadas ao Instituto Biológico de São Paulo, confirmando diagnóstico. O animal em estado clínico grave, não resistiu e veio a óbito em julho de 2015. A ocorrência de um caso alóctone, em uma área de ocorrência de insetos vetores, pode desencadear um processo de endemia na região amazônica. Com isso, o controle epidemiológico destas ocorrências, se fazem necessários, afim de se evitar a disseminação da doença no país.

A Prospective Study on Mycology of Eye Infection in a Tertiary Care Teaching Hospital

Background: Objectives: Fungi are commonly found in the environment and most of them are either commensals or nonpathogenic. Eye infections are caused by bacteria, viruses and less commonly by fungi, therefore not given much attention by the practitioners and also by ophthalmolog ists. In the last one - decade incidence of fungal eye infections has increased due to increase in the number of patients with poor immunity. Common conditions which impair the immunity are prolonged use of steroids and antibacterial broad - spectrum antibioti cs, use of immunosuppressive drugs in cancer patients, in patients with organ transplant and some infections like AIDS. Candida, Fusarium and Aspergillus are the fungi frequently found to be associated with fungal eye infections. Trauma is the most signifi cant predisposing factor particularly when accompanied by contamination with vegetable matter. Methods: Samples such as corneal scrapings, Conjunctival swab, Vitreous & Aqueous aspirates were collected aseptically and sent to microbiology laboratory for KO H wet mount examination and fungal culture. KOH preparation was examined directly under microscope and culture were done on SDA, incubated at 25° c for three weeks. Results: Males were more commonly infected (66.5%) as compared to females (33.5%) The overall positivity in direct microscopy ( KOH preparation) was 32% while positivity in culture was 51%.The most frequently isolated fungus was Fusarium (16) followed by A. flavus ( 07), A. fumigatus (06), Candida sp.(06) and Curvalaria (03) Conclusion: If medical therapy fails to control the infection, surgery should be considered to save the eye visual function before the progression of disease.

Comparison of the Effectiveness of Leaf Extracts of Anredera cordifolia, Psidium guajava and Pogostemon cablin on Inhibitory Power Over Escherichia coliBacteria / Comparación de la eficacia de los extractos de hojas de Anredera cordifolia, Psidium guajava y Pogostemon cablinen su poder inhibidor sobre la bacteria Escherichia coli

Background: the current research studies why it is effective using Anrederacordifolia, Psidium guajava, and Pogostemon cablin by the local community as a traditional medicine for diarrhea treatment caused by Escherichiacoli bacteria. Objectives: We compared the inhibitor effectiveness of three leaf extracts against Escherichia coli; we also identified the anti-bacterial substances contained in leaf extracts. Methods: We determined the bacterial test activity using the "agar diffusion" method and the thin layer chromatography (TLC) as qualitative analysis for determining the anti-bacterial substances contained in the extract. Results: The Pogostemon cablin leaf extract contained terpenoids, phenolic, and flavonoids compound as bacterial inhibitors, and the comparison showed that Pogostemon cablin leaf extract had the greatest bacterial inhibition power. Conclusion: The antibiotic substances found in the leaf extracts of Anredera cordifolia, Psidium guajava, and Pogostemon cablin can be used as traditional medicine. The breakthrough was evidenced by the ability to inhibit Escherichia coli bacteria. This research shows that traditional medicine has ancient knowledge used by this paper

Antecedentes: la presente investigación estudia la eficacia del uso de Anredera cordifolia, Psidium guajava y Pogostemoncablin por la comunidad local como medicina tradicional para el tratamiento de la diarrea causada por la bacteria Escherichia coli. Objetivos: Comparamos la eficacia inhibidora de los extractos de tres hojas contra Escherichia coli; también identificamos las sustancias antibacterianas contenidas en los extractos de hojas. Métodos: Determinamos la actividad de la prueba bacteriana mediante el método de "difusión en agar" y la cromatografía en capa fina (TLC) como análisis cualitativo para determinar las sustancias antibacterianas contenidas en el extracto. Resultados: el extracto de hoja de Pogostemoncablin contenía compuestos terpenoides, fenólicos y flavonoides como inhibidores bacterianos, y la comparación mostró que el extracto de hoja de Pogostemon cablin tenía el mayor poder de inhibición bacteriana. Conclusión: El contenido de sustancias antibióticas que se encuentran en el extracto de hoja de Anredera cordifolia, Psidium guajava y Pogostemoncablin puede utilizarse como medicina tradicional. Esto se evidencia por la capacidad de inhibir la bacteria Escherichiacoli. Esta investigación muestra que la medicina tradicional tiene un conocimiento antiguo utilizado por este artículo

Efecto gelificante del agar de Gracilaria debilis en la elaboración de una compota de níspero (Manilkara zapota)

RESUMEN El agar se emplea en la industria alimenticia por su característica de estabilización y gelificación y el níspero es una fruta de sabor agradable, de fácil consumo y además tiene excelentes propiedades nutricionales. En este estudio se evaluó el efecto gelificante del agar extraído de Gracilaria debilis en la elaboración de una compota de níspero (Manilkara zapota). A las algas recolectadas se les extrajo agar mediante tratamiento alcalino con NaOH 0,04 M. Para la obtención de la compota se elaboraron tres fórmulas base, seleccionándose la que contenía 0,05% de ácido cítrico, 56,4% de agua, 6,0% de azúcar y 37,6% de puré de níspero; sirviendo de base para tres muestras (M1, M2, y M3) al 0,4%; 0,6% y 0,8% p/p de agar, respectivamente. El análisis sensorial indicó que la compota M2 fue la más aceptable, con valores de cenizas= 0,85±0,08%; cloruros= 0,085±0,014%; 18,0±0,4; y °Brix grasa= 0,50±0,01 g/100g; humedad= 64,0±3,0%; pH= 4,32±0,03; proteínas= 0,42±0,01 g/100g y sólidos totales= 35,9±3,0%. La viscosidad (-554±10 g·s) estuvo cercana al valor de una compota comercial (-430±4 g·s). M2 demostró estabilidad durante un mes ante aerobios mesófilos, con valores menores de 10 UFC/mL. Las concentraciones de agar influyeron únicamente en la viscosidad, ajustándose a una ecuación lineal con R²= 0,986. En alimentos que requieren en su preparación ser sometidos a altas temperaturas, como es el caso de las compotas, el agar presenta propiedades y comportamiento adecuado como gelificante.

ABSTRACT Agar is a used in the food industry for its stabilization and gelation characteristics and the medlar is a fruit with a pleasant taste, easy to consume where it provides excellent nutritional properties. In this study the effect of gelling extracted Gracilaria debilis agar was evaluated in the formulating a sapodilla (Manilkara zapota) compote. Agar was extracted from the collected algae by alkaline treatment with 0.04 M NaOH. To obtain compote, three base formulas were prepared, selected which containing 0.05% citric acid, 56.4% water, 6.0% sugar and 37.6% sapodilla puree; providing the basis for three samples (M1, M2 and M3) at the following concentrations: 0.4%; 0.6% and 0.8% w/w of agar, respectively. Sensory analysis indicated that the compote M2 had the most acceptable values, with ash content= 0.85±0.08%; chloride= 0.085±0.014%; 18.0±0,4 °Brix; fat= 0.50±0.01 g/100 g; humidity= 64.0±3.0%; pH= 4.32±0.03; protein= 0,42±0.01 g/100 g and total solids= 35.9±3.0%. The viscosity (-554±10 g·s) was close to the value of a commercial compote (-430±4 g·s). M2 showed stability for one month, against the aerobic mesophilic bacteria, with values less than 10 CFU/mL. It was observed that agar concentrations had influenced only in the viscosity by adjusting to a linear equation with R2= 0.986. In foods that require high temperatures in their preparation, such as compotes, agar has properties as well as the adequate behavior as a gelling agent.

Evaluation of rapid identification methods for foodborne diarrhea Campylobacter and detection of drug resistance / 中华检验医学杂志

Objective:To explore and evaluate a appropriate suitable method for detection of Campylobacter and antibiotic sensitivity test for foodborne diarrhea in clinical laboratories. Methods:Pre-experiment:a total number of 400 fecal samples of patients with foodborne diarrhea were prospectively collected from the intestinal disease clinic of Beijing Tongren Hospital from September 2017 to January 2018. Double-hole filtration culture method and modified cefoperazone charcoal deoxycholate (CCD) agar culture method were used for fecal culture in micro-aerobic environment for 48 hours, and then suspicious colonies were identified by matrix assisted laser desorption ionization-time of flight (MALDI-TOF) mass spectrometry. Meanwhile, C. jejuni and C. coli were detected by real-time quantitative polymerase chain reaction(qPCR). Large sample verification: 2 062 fecal samples of patients with foodborne diarrhea in three hospitals of different levels in different areas of Beijing were collected for qPCR detection and culture from April 2018 to March 2019. The antimicrobial sensitivity test (AST) of C. jejuni and C. coli was performed according to the disk diffusion method and agar dilution method recommended by Clinical and Laboratory Standards Institute and National Antimicrobial Resistance Monitoring System for Enteric Bacteria. The results of the three detection methods and the consistency of the two antibiotic sensitivity tests were compared. Results:In the pre-experiment, the positive rates of Campylobacter ( jejuni/coli) detected of qPCR, double-hole filtration culture and modified CCD agar culture were 9.0% (36/400), 5.0% (20/400)and 3.5% (14/400), and the difference was statistically significant ( P<0.01). The samples with negative result of qPCR were negative by both culture methods. The total positive rates of Campylobacter detected by qPCR was 8.1% (168/ 2 062)including 7.0% (144/2 062) for C. jejuni and 1.2% (24/2 062) for C. coli. The samples with positive qPCR results were cultured by double-hole filtration culture method and the positive rate was 61.9%(104/168), among which, the positive rate of C. jejuni and C. coli were 58.3%(84/144) and 83.3%(20/24) respectively, which was not significantly different from the detection rate and culture positive rate in the pre-test ( P>0.1). The resistance rates of C. jejuni and C. coli to ciprofloxacin were 94.0%(94/100) and 100.0%(24/24) and to erythromycin were 6.0%(6/100) and 33.3%(8/24). The results from two antibiotic sensitivity test methods were consistent (Kappa>0.75). Conclusions:qPCR is rapid, sensitive and easy to operate, so it is suitable for routine development in clinical laboratories. The double-hole filtration culture method is beneficial to the acquisition of strains and is essential for the further study of Campylobacter. There was no significant difference between agar dilution method and disk diffusion method in antibiotic sensitivity test. Campylobacter showed a very high resistance rate to quinolones, which was no longer suitable for the treatment of Campylobacter foodborne diarrhea in Beijing area. Macrocyclic lipid antibiotics should be preferred.

In Vitro Antimicrobial Activity and Aggregation Abilities of Probiotic Lactobacillus casei and Lactobacillus salivarius Against Oral Pathogens

ABSTRACT@#The antagonistic effect of probiotics against oral pathogens merits exploration because these bacteria are beneficial to the host’s health. The antimicrobial activity of two probiotic strains, Lactobacillus casei and Lactobacillus salivarius, as well as L. casei and L. salivarius combination (1:1), was investigated against Streptococcus mutans, Streptococcus sobrinus, Candida albicans, Candida glabrata and Candida tropicalis using agar-well diffusion, auto-aggregation and coaggregation assays. L. salivarius cell-free supernatant (CFS) alone exhibited greater inhibitory effect against Streptococci spp. compared to L. casei CFS alone and the combination. However, no inhibition was observed for Candida spp. L. salivarius alone exhibited significantly stronger auto-aggregation than L. casei alone (p ≤ 0.05) and L. casei and L. salivarius combination. L. salivarius exhibited strong coaggregation ability with Candida spp., followed by Streptococci spp. while L. casei exhibited coaggregation only with Streptococci spp. However, L. casei and L. salivarius combination did not display any coaggregation with all strains. L. salivarius alone exhibited a stronger antagonistic effect on the tested organisms than L. casei alone or in combination. Based on the results, both probiotic strains showed good antimicrobial activities against oral pathogens and should be further studied for their human health benefits.

Phytochemical Profiles Of Three Traditional Medicinal Plants And Its Antimicrobial Activities

Objective: The objective of the current study was to compare the phytochemical composition and to evaluate the antibacterial properties of Cissus qudrangularis, Cinnamomum zeylanicum and Trigonella foenum-graecum against the bacterial strains Escherichia coli and Bacillus circulans. Methods: Qualitative analysis and quantitative estimation of various phytochemical components were done using standard protocols. Antibacterial activity against gram-negative Escherichia coli and gram-positive Bacillus circulans was evaluated using standard protocol of agar well diffusion and disc diffusion assay. The zone of inhibition was calculated. Results: Preliminary phytochemical analysis showed the presence of alkaloids, saponins and tannins in all three plant extracts. In quantitative estimation, Cinnamomum zeylanicum showed high alkaloid content (22%), Cissus qudrangularis showed high saponin content (6%) Trigonella foenum-graecum showed a high concentration (4.65 mg/g) of tannin. All the three plants showed moderate antimicrobial activity. The water extract of Cinnamomum zeylanicum showed the highest zone of inhibition (13 mm) against Escherichia coli and the water extract of Trigonella foenum-graecum showed the highest zone of inhibition (11 mm) against Bacillus circulans. Conclusion: The result of this study supports the use of all the selected three medicinal plants as a source of antibacterial substance for the possible treatment of human pathogenic organisms. These plants can be further subjected to isolation of the therapeutic phytochemicals and further pharmacological evaluation.

Bacterial Profile of Urinary Tract Infection in Type 2 Diabetes Mellitus.

Diabetes mellitus is one of the most challenging heath problems of the 21st century and is leading cause of death in developed countries. Urinary tract infections are one of the most frequent bacterial infections encountered in diabetes mellitus. We wanted to determine the common pathogens causing urinary tract infection in diabetic patients and their antibiotic resistance pattern. METHODSA total of 550 mid-stream clean catched urine samples were subjected to macroscopic examination, wet film examination, Gram staining, and semi-quantitative culture methods. HiCrome agar was used for early identification of isolates. Samples were inoculated on 5% blood agar, CLED agar and MacConkey agar. Isolates were identified by standard laboratory procedures. RESULTSIn this study, 284 isolates were obtained, and the most common organisms isolated were E. coli. Klebsiella and Proteus species. Gram positive isolates were Enterococcus and MRSA. Patients with diabetes are more prone to have resistant pathogen. CONCLUSIONSThis study concluded that the prevalence of urinary tract infection is higher in females compared to males in diabetes. Gram stain was found to be the best screening test with high sesitivity and specificity. Wet film has comparatively low sesitivity and specificity. It is essential that culture should be done for all samples in diabetes to decrease the morbidity and prevent the occurrence of complications.

Detection of icaA, icaD, and bap genes and biofilm production in Staphylococcus aureus and non-aureus staphylococci isolated from subclinical and clinical bovine mastitis / Detecção dos genes icaA, icaD e bap e produção de biofilme por Staphylococcus aureus e estafilococos não-aureus isolados de mastite clínica e subclínica bovina

Algumas espécies de Staphylococcus causam infecções crônicas intramamárias e podem levar à formação de biofilme. No presente estudo, levantou-se a hipótese de que as espécies de Staphylococcus isolados da mastite bovina são capazes de formar biofilme in vitro associado à presença dos genes icaA, icaD ou bap. Um total de 200 isolados de Staphylococcus, sendo 100 Staphylococcus aureus de casos de mastite subclínica e 100 estafilococos não aureus (ENA) de casos de mastite subclínica e clínica, obtidos em duas fazendas leiteiras, no estado de São Paulo, foram avaliados quanto à capacidade de produzir biofilmes in vitro. A presença de icaA, icaD e bap foi confirmada por PCR, e a produção de biofilme em ágar vermelho congo (Congo Red Agar - CRA) e em teste de microplaca (Microtiter Plate - MtP) foi avaliada nos isolados de S. aureus e ENA. Os resultados mostraram a presença dos genes icaA, icaD e bap em S. aureus, mas não em ENA. A produção de biofilme pode estar associada à presença de outros fatores ou genes que estimulam a produção de biofilme in vitro. O ensaio de MtP serve como um modelo quantitativo para o estudo da aderência de espécies de estafilococos associados à mastite bovina.(AU)