Journal of microorganism control最新文献_第2页

External quality control survey on identification of microorganisms using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. 利用基质辅助激光解吸电离飞行时间质谱法鉴定微生物的外部质量控制调查。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.1_49

Kazuyuki Sogawa, Azumi Fujinaga, Hajime Okumura, Makiko Kiyosuke, Syota Murata, Koji Kusaba, Kohei Uechi, Kazuki Horiuchi, Kazunari Yasuda, Masami Murakami, Tomohiro Nakayama

引用次数: 0

Heparinoid enhances the efficacy of a bactericidal agent by preventing Cutibacterium acnes biofilm formation via quorum sensing inhibition. 肝磷脂通过抑制法定量感应阻止痤疮杆菌生物膜的形成，从而增强杀菌剂的功效。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.1_27

Shoko Hamada, Sayaka Minami, Mitsuhiro Gomi

{"title":"Heparinoid enhances the efficacy of a bactericidal agent by preventing Cutibacterium acnes biofilm formation via quorum sensing inhibition.","authors":"Shoko Hamada, Sayaka Minami, Mitsuhiro Gomi","doi":"10.4265/jmc.29.1_27","DOIUrl":"10.4265/jmc.29.1_27","url":null,"abstract":"Cutibacterium acnes is an opportunistic pathogen in acne vulgaris. C. acnes produces autoinducer-2 (AI-2）, a signaling molecule used for communication known as quorum sensing (QS）. In C. acnes, QS reportedly upregulates biofilm formation leading to resistance against bactericidal agents. In this study, we analyzed how heparinoid affected QS and biofilm formation of the opportunistic pathogen C. acnes. We also verified whether heparinoid would suppress biofilm formation and enhance the efficacy of the bactericidal agent 4-isopropyl-3-methylphenol (IPMP) against C. acnes biofilms. We ran an AI-2 bioassay using Vibrio harveyi ATCC BBA-1121. Heparinoid exhibited inhibitory activity against AI-2 at concentrations of 0.003-0.005%, suggesting an AI-2 analog-derived or C. acnes culture supernatant-derived inhibition of the AI-2 activity. To evaluate how heparinoid suppresses biofilm formation in C. acnes, we completed a biofilm assay in 96-well plates. We also evaluated the bactericidal activity of IPMP against the C. acnes biofilm prepared with or without heparinoid. Heparinoid inhibited C. acnes biofilm formation and IPMP bactericidal efficacy increased upon heparinoid-mediated suppression of biofilm formation. In this study, we clarified that heparinoid inhibits the AI-2-mediated QS of C. acnes, thereby suppressing biofilm formation and increasing IPMP bactericidal efficacy, potentially suppressing acne vulgaris.","PeriodicalId":73831,"journal":{"name":"Journal of microorganism control","volume":"29 1","pages":"27-31"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140178063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fungal infections and control strategies in cultured marine finfish: a minireview. 养殖的海洋鱼类中的真菌感染和控制策略：综述。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.4_127

Mohammad Tamrin Mohamad Lal, Leong Seng Lim, Lik-Ming Lau, Elden Sai Long Chang, Asyraf Abdul Momin, Muhd Sharil Izzan Hamid

引用次数: 0

Synergistic/antagonistic antimicrobial effects of cosmetic ingredients in combination with 1,2-hexanediol. 化妆品成分与 1,2-hexanediol 的协同/拮抗抗菌效果。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.4_133

Hyojin Gim, Sangah Hong, Hyungyung Park, Sunghyun Im, Jong Il Kim

{"title":"Synergistic/antagonistic antimicrobial effects of cosmetic ingredients in combination with 1,2-hexanediol.","authors":"Hyojin Gim, Sangah Hong, Hyungyung Park, Sunghyun Im, Jong Il Kim","doi":"10.4265/jmc.29.4_133","DOIUrl":"10.4265/jmc.29.4_133","url":null,"abstract":"With the rise of the clean beauty trend in the cosmetics and personal care industry, consumers' interest in cosmetic ingredients, especially preservatives, continues to grow. Paraben, previously the most used preservative in cosmetics, has been excluded from many products owing to its potential risks. Therefore, a movement to lower the content of various preservatives is ongoing. One approach to achieve a suitable level of preservation is to use multifunctional ingredients as preservative boosters. In this study, we aimed to confirm the synergistic antimicrobial interactions between various cosmetic ingredients and 1,2-hexanediol, a preservative introduced as a substitute for paraben, using the checkerboard assay. We also measured the antagonistic effect by measuring the fold changes in the minimum inhibitory concentration of 1,2-hexanediol. Niacinamide, a form of vitamin B3, showed synergistic antifungal activity with 1,2-hexanediol, which lowered the content of 1,2-hexanediol in the oil-solubilized toner formulation. Among the substances, 50000 ppm of methyl methacrylate crosspolymer elevated the minimum inhibitory concentration of 1,2-hexanediol against bacteria and fungi by 2‒8 times. Through this study, we suggest applying the synergistic effects of various cosmetic ingredients in the formulation as a method to effectively reduce the content of preservatives.","PeriodicalId":73831,"journal":{"name":"Journal of microorganism control","volume":"29 4","pages":"133-142"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142980926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MALDI-TOF MS analysis for detection of bovine coronavirus with tryptic peptides from viral proteins. 用MALDI-TOF质谱法检测牛冠状病毒蛋白的胰蛋白酶。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.4_143

Katsuhiko Hayashi, Kenji Ohya, Tomoya Yoshinari, Shouhei Hirose, Souta Shimizu, Yuji Morita, Takahiro Ohnishi, Maiko Watanabe, Satoshi Taharaguchi, Hirohisa Mekata, Takahide Taniguchi, Yukiko Hara-Kudo

{"title":"MALDI-TOF MS analysis for detection of bovine coronavirus with tryptic peptides from viral proteins.","authors":"Katsuhiko Hayashi, Kenji Ohya, Tomoya Yoshinari, Shouhei Hirose, Souta Shimizu, Yuji Morita, Takahiro Ohnishi, Maiko Watanabe, Satoshi Taharaguchi, Hirohisa Mekata, Takahide Taniguchi, Yukiko Hara-Kudo","doi":"10.4265/jmc.29.4_143","DOIUrl":"10.4265/jmc.29.4_143","url":null,"abstract":"Bovine coronavirus (BCoV）, a significant cattle pathogen causing enteric and respiratory diseases, is primarily detected using reverse transcription-polymerase chain reaction. Our objective was to develop a novel detection method for BCoV by matrix-assisted laser desorption/ionization‒time-of-flight mass spectrometry (MALDI-TOF MS）. Peptide mass fingerprint analysis revealed that nucleocapsid (N）, membrane (M）, and hemagglutinin-esterase (HE) were three main BCoV proteins. Their tryptic peptides were used as target molecules for BCoV detection. When the tryptic digest of 107.0 viral copies was analyzed by MALDI-TOF MS, five peptides with relatively strong peaks were detected. The detection limit was between 105.0 and 106.0 copies per test for BCoV alone. To detect BCoV in the swab eluate, ultrafiltration purification achieved a detection limit between 106.0 and 107.0 copies per test, sufficient to detect BCoV-infected calves. Our findings offer valuable insights for BCoV detection by MALDI-TOF MS.","PeriodicalId":73831,"journal":{"name":"Journal of microorganism control","volume":"29 4","pages":"143-151"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143056165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An experimental verification of fungal overgrowth in temporary houses at the site of the Great East Japan Earthquake. 东日本大地震遗址临时房屋真菌过度生长的实验验证。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.1_45

Maiko Watanabe, Rumi Konuma, Kenichi Hasegawa, Noritaka Kimura, Naoki Kobayashi, Yoichi Kamata, Hiroshi Yoshino, Kosuke Takatori, Yukiko Hara-Kudo

{"title":"An experimental verification of fungal overgrowth in temporary houses at the site of the Great East Japan Earthquake.","authors":"Maiko Watanabe, Rumi Konuma, Kenichi Hasegawa, Noritaka Kimura, Naoki Kobayashi, Yoichi Kamata, Hiroshi Yoshino, Kosuke Takatori, Yukiko Hara-Kudo","doi":"10.4265/jmc.29.1_45","DOIUrl":"10.4265/jmc.29.1_45","url":null,"abstract":"Fungal contamination in the indoor air of prefabricated temporary houses at the site of the Great East Japan Earthquake revealed extremely high levels compared to those found in conventional residences. We experimentally investigated fungal growth levels on different interior materials to support fungal overgrowth in prefabricated temporary houses. Three species each of allergenic fungi and invasive fungi observed in temporary housing were selected for inoculation tests with various interior materials. The experiments with fungal inoculation were conducted in conformance with standards for industrial products described in the Japanese\" JIS Z 2911:2018 Methods of test for fungus resistance\" with small modifications. After incubation, visual and stereomicroscopic assessments were performed to determine fungal growth levels. The viability of the fungi varied according to the interior material type. Our findings demonstrate the importance of antifungal measures in indoor environments and the need for additional research on the growth levels of fungal species on various interior materials.","PeriodicalId":73831,"journal":{"name":"Journal of microorganism control","volume":"29 1","pages":"45-48"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140178020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential biocontrol for bacterial and viral disease treatment in aquaculture: a minireview. 水产养殖中细菌和病毒疾病治疗的潜在生物控制：小视角。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.3_99

Zy Chee Wong, Nur Amirah Mohamad Alwie, Leong Seng Lim, Motohiko Sano, Mohammad Tamrin Mohamad Lal

{"title":"Potential biocontrol for bacterial and viral disease treatment in aquaculture: a minireview.","authors":"Zy Chee Wong, Nur Amirah Mohamad Alwie, Leong Seng Lim, Motohiko Sano, Mohammad Tamrin Mohamad Lal","doi":"10.4265/jmc.29.3_99","DOIUrl":"https://doi.org/10.4265/jmc.29.3_99","url":null,"abstract":"Aquaculture is part of the crucial industry that supplies food, especially for the global human population that is gradually increasing annually. Innovations of culture techniques have been improved throughout the years but aquaculture is regularly susceptible to bacterial and viral diseases. Numerous factors could contribute to occurrence of disease and usually they are from environmental or human stressors on the cultured animals. Synthetic chemicals in commercial treatments may yield fast results however, the side effects are usually unknown until it has taken effect. Therefore, biological control methods to treat diseases in aquaculture are preferred. This mini review provides an overview of different potential biocontrol practices for treatment of bacterial and viral diseases. Bacteriophage causes death of pathogenic bacteria by killing the cell and continue to multiply until all targeted pathogenic bacteria are eliminated. Probiotic, prebiotic, synbiotic, biofloc, and immunostimulants are beneficial products from the respective organisms that are effective in inhibiting pathogens. Vaccines introduce inactivated pathogen into the body to stimulate the immune system, while genetic modifications involve alteration and selection of disease resistant genetics.","PeriodicalId":73831,"journal":{"name":"Journal of microorganism control","volume":"29 3","pages":"99-103"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142333902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High qnrS retention of ESBL-producing and mcr-harbouring colistin-resistant Escherichia coli in Vietnamese food products. 越南食品中产ESBL大肠杆菌和耐大肠菌素大肠杆菌的qnrS保留率高。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.3_121

Tatsuya Nakayama, Michio Jinnai, Kairi Miyaji, Machika Saito, Natsuki Ohata, Takahiro Yamaguchi, Doan Tran Nguyen Minh, Oanh Nguyen Hoang, Hien LE Thi, Phong Ngo Thanh, Phuong Hoang Hoai, Phuc Nguyen DO, Chinh Dang VAN, Yuko Kumeda, Atsushi Hase

{"title":"High qnrS retention of ESBL-producing and mcr-harbouring colistin-resistant Escherichia coli in Vietnamese food products.","authors":"Tatsuya Nakayama, Michio Jinnai, Kairi Miyaji, Machika Saito, Natsuki Ohata, Takahiro Yamaguchi, Doan Tran Nguyen Minh, Oanh Nguyen Hoang, Hien LE Thi, Phong Ngo Thanh, Phuong Hoang Hoai, Phuc Nguyen DO, Chinh Dang VAN, Yuko Kumeda, Atsushi Hase","doi":"10.4265/jmc.29.3_121","DOIUrl":"10.4265/jmc.29.3_121","url":null,"abstract":"Plasmid-mediated antibiotic-resistant bacteria's transmission is fatal and a major threat to public health. This study aimed to clarify the presence of plasmid-mediated quinolone resistance（PMQR）genes in extended-spectrum β-lactamase（ESBL）-producing or/and mcr-harbouring colistin（COL）-resistant Escherichia coli（ESBL-COL-EC）isolates from Vietnamese and Japanese chicken meat. Resistance towards ciprofloxacin（CIP）was examined in 308 ESBL-COL-EC isolates; CIP-resistant ESBL-COL-EC isolates were examined for the PMQR gene. Approximately, 71.1% and 38.1% of ESBL-COL-EC and ESBLproducing E. coli isolates from Vietnamese and Japanese chicken meat were CIP-resistant, respectively. Multiplex PCR led PMQR detection showed that 35.2% of CIP-resistant ESBL-COL-EC isolates from Vietnamese food contained PMQR gene, whereas CIP-resistant ESBL-COL-EC isolates from Japanese chicken meat did not. Conjugation assays showed that the transmission of qnrS gene carried by E. coli to Salmonella. In conclusion, ESBL-COL-EC isolates from Vietnamese food are associated with a high frequency of fluoroquinolone resistance and a high distribution of the qnrS gene.","PeriodicalId":73831,"journal":{"name":"Journal of microorganism control","volume":"29 3","pages":"121-126"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142333901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antibacterial toner exhibits bactericidal effect against Cutibacterium acnes via keratin and sebum plug penetration. 抗菌爽肤水通过角蛋白和皮脂栓的渗透，对痤疮丙酸杆菌具有杀菌作用。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.2_63

Shoko Hamada, Yukio Nakamura, Mitsuhiro Gomi

{"title":"Antibacterial toner exhibits bactericidal effect against Cutibacterium acnes via keratin and sebum plug penetration.","authors":"Shoko Hamada, Yukio Nakamura, Mitsuhiro Gomi","doi":"10.4265/jmc.29.2_63","DOIUrl":"https://doi.org/10.4265/jmc.29.2_63","url":null,"abstract":"Cutibacterium acnes is an opportunistic pathogen recognized as a contributing factor to acne vulgaris. The accumulation of keratin and sebum plugs in hair follicles facilitates C. acnes proliferation, leading to inflammatory acne. Although numerous antimicrobial cosmetic products for acne-prone skin are available, their efficacy is commonly evaluated against planktonic cells of C. acnes. Limited research has assessed the antimicrobial effects on microorganisms within keratin and sebum plugs. This study investigates whether an antibacterial toner can penetrate keratin and sebum plugs, exhibiting bactericidal effects against C. acnes. Scanning electron microscopy and next-generation sequencing analysis of the keratin and sebum plug suggest that C. acnes proliferate within the plug, predominantly in a biofilm-like morphology. To clarify the potential bactericidal effect of the antibacterial toner against C. acnes inside keratin and sebum plugs, we immersed the plugs in the toner, stained them with LIVE/DEAD BacLight Bacterial Viability Kit to visualize microorganism viability, and observed them using confocal laser scanning microscopy. Results indicate that most microorganisms in the plugs were killed by the antibacterial toner. To quantitatively evaluate the bactericidal efficacy of the toner against C. acnes within keratin and sebum, we immersed an artificial plug with inoculated C. acnes type strain and an isolate collected from acne-prone skin into the toner and obtained viable cell counts. The number of the type strain and the isolate inside the artificial plug decreased by over 2.2 log and 1.2 log, respectively, showing that the antibacterial toner exhibits bactericidal effects against C. acnes via keratin and sebum plug penetration.","PeriodicalId":73831,"journal":{"name":"Journal of microorganism control","volume":"29 2","pages":"63-73"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141332654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Clinical and Microbiological Characteristics of Bacteremia Caused by Carbapenemase-producing Enterobacterales in Minami Ibaraki Area, Japan. 日本南茨城地区由产碳青霉烯酶肠杆菌引起的菌血症的临床和微生物学特征。

Journal of microorganism control Pub Date : 2024-01-01 DOI: 10.4265/jmc.29.2_81

Michie Uchida, Norihiko Terada, Kazuhito Saito, Hiroichi Ishikawa, Yasunori Funayama, Tsuyoshi Oishi, Hiroyuki Shinohara, Tsugio Ebihara, Yoko Kurihara, Shigemi Hitomi

{"title":"Clinical and Microbiological Characteristics of Bacteremia Caused by Carbapenemase-producing Enterobacterales in Minami Ibaraki Area, Japan.","authors":"Michie Uchida, Norihiko Terada, Kazuhito Saito, Hiroichi Ishikawa, Yasunori Funayama, Tsuyoshi Oishi, Hiroyuki Shinohara, Tsugio Ebihara, Yoko Kurihara, Shigemi Hitomi","doi":"10.4265/jmc.29.2_81","DOIUrl":"10.4265/jmc.29.2_81","url":null,"abstract":"Although recent propagation of carbapenemase-producing Enterobacterales (CPE) has become a problem worldwide, the picture of CPE infection in Japan has not fully been elucidated. In this study, we examined clinical and microbiological characteristics of invasive CPE infection occurring at 8 hospitals in Minami Ibaraki Area between July 2001 to June 2017. Of 7294 Enterobacterales strains isolated from independent cases of bacteremia and/or meningitis, 10 (0.14%) were CPE (8 Enterobacter cloacae-complex, 1 Escherichia coli, and 1 Edwardsiella tarda）, all of which had the blaIMP-1 gene and susceptible to gentamicin and trimethoprim/sulfamethoxazole. These strains were isolated from 7 adult and 2 infant bacteremia (1 infant patient developed CPE bacteremia twice) after 2007. The most common portal of entry was intravenous catheters. All of the adult patients were recovered, while the infant patients eventually died. Genomic analyses showed that the 8 E. cloacae-complex strains were classified into 5 groups, each of which was exclusively detected in specific facilities at intervals of up to 3 years, suggesting persistent colonization in the facilities. This study showed that invasive CPE infection in the area was rare, caused by IMP-1-type CPE having susceptibility to various antibiotics, and nonfatal among adult patients.","PeriodicalId":73831,"journal":{"name":"Journal of microorganism control","volume":"29 2","pages":"81-89"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141332655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0