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Warmling PG, Zanandrea JSA, Goulart TS, Garcia LFR, de Almeida J. Tetracycline staining of the dentition: a review of the literature and report of a clinical case. Gen Dent 2024; 72:42-48. [PMID: 38640005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The present article reviews the literature regarding tetracycline staining of the dentition and its esthetic management. A total of 49 articles were identified in the initial search, and 22 articles met the eligibility criteria of this narrative literature review. Tetracycline staining results from its use in children between the ages of 6 months and 6 years, when tooth crowns are formed; the effects are dependent on the dosage, duration of treatment, stage of tooth mineralization, and activity of the mineralization process. Tooth bleaching is always the first treatment option for low-grade cases of tetracycline staining. Restorative procedures are indicated for severe staining. The article also describes the treatment of severe staining affecting the maxillary anterior dentition of a 48-year-old man who reported the systemic administration of tetracycline during childhood. Direct composite resin laminate veneers were proposed to achieve immediate, highly esthetic restorations. A combination of different resinous materials in different shades was applied to meet the needs of the patient. The use of direct composite resin laminate veneers satisfied the functional and esthetic demands of the patient at a lower cost than ceramic materials.
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Song Y, Chen R, Li S, Yu S, Ni X, Fang M, Xie H. Enhancement of Peroxydisulfate Activation for Complete Degradation of Refractory Tetracycline by 3D Self-Supported MoS 2/MXene Nanocomplex. Nanomaterials (Basel) 2024; 14:786. [PMID: 38727380 PMCID: PMC11085324 DOI: 10.3390/nano14090786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/12/2024]
Abstract
Antibiotic abuse, particularly the excessive use of tetracycline (TC), a drug with significant environmental risk, has gravely harmed natural water bodies and even posed danger to human health. In this study, a three-dimensional self-supported MoS2/MXene nanohybrid with an expanded layer spacing was synthesized via a facile one-step hydrothermal method and used to activate peroxydisulfate (PDS) for the complete degradation of TC. The results showed that a stronger •OH signal was detected in the aqueous solution containing MoS2/MXene, demonstrating a superior PDS activation effect compared to MoS2 or Ti3C2TX MXene alone. Under the conditions of a catalyst dosage of 0.4 g/L, a PDS concentration of 0.4 mM, and pH = 5.0, the MoS2/MXene/PDS system was able to fully eliminate TC within one hour, which was probably due to the presence of several reactive oxygen species (ROS) (•OH, SO4•-, and O2•-) in the system. The high TC degradation efficiency could be maintained under the influence of various interfering ions and after five cycles, indicating that MoS2/MXene has good anti-interference and reusability performance. Furthermore, the possible degradation pathways were proposed by combining liquid chromatography-mass spectrometry (LC-MS) data and other findings, and the mechanism of the MoS2/MXene/PDS system on the degradation process of TC was elucidated by deducing the possible mechanism of ROS generation in the reaction process. All of these findings suggest that the MoS2/MXene composite catalyst has strong antibiotic removal capabilities with a wide range of application prospects.
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Affiliation(s)
| | - Runhua Chen
- College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha 410004, China; (Y.S.)
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Calcagno A, Tutone M, Del Re S, Delmonte S, Agosta D, Ghisetti V, Lucchini A. Doxycycline Post-exposure Prophylaxis and Sexually Transmitted Infections in Italy, 2023. Clin Infect Dis 2024:ciae219. [PMID: 38655679 DOI: 10.1093/cid/ciae219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/02/2024] [Accepted: 04/18/2024] [Indexed: 04/26/2024] Open
Affiliation(s)
- Andrea Calcagno
- Unit of Infectious Diseases, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Marco Tutone
- Multidisciplinary Center for Sexual Health (Ce.Mu.S.S.), Ospedale Oftalmico "Casimiro Sperino", ASL "Città di Torino", Turin, Italy
| | - Simonetta Del Re
- Laboratory of Virology and Microbiology, Ospedale "Amedeo di Savoia", ASL "Città di Torino", Turin, Italy
| | - Sergio Delmonte
- Multidisciplinary Center for Sexual Health (Ce.Mu.S.S.), Ospedale Oftalmico "Casimiro Sperino", ASL "Città di Torino", Turin, Italy
| | - Daniele Agosta
- Multidisciplinary Center for Sexual Health (Ce.Mu.S.S.), Ospedale Oftalmico "Casimiro Sperino", ASL "Città di Torino", Turin, Italy
| | - Valeria Ghisetti
- Laboratory of Virology and Microbiology, Ospedale "Amedeo di Savoia", ASL "Città di Torino", Turin, Italy
| | - Anna Lucchini
- Multidisciplinary Center for Sexual Health (Ce.Mu.S.S.), Ospedale Oftalmico "Casimiro Sperino", ASL "Città di Torino", Turin, Italy
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Azqandi M, Ramavandi B, Nasseh N, Zaarei D, Fanaei F. Green synthesis of manganese ferrite magnetic nanoparticle and its modification with metallic-organic frameworks for the tetracycline adsorption from aqueous solutions: A mathematical study of kinetics, isotherms, and thermodynamics. Environ Res 2024:118957. [PMID: 38636645 DOI: 10.1016/j.envres.2024.118957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 04/04/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
In the current investigation, MnFe2O4/ZIF-8 nanocomposite was generated as a magnetic nanoadsorber using the extract of Dracocephalum plant and characterized by XRD, FTIR, VSM, BET, FESEM, EDS-mapping, TEM, XPS, TPD-NH3, and TGA analyses. Also, to determine its efficiency in the adsorption process of tetracycline, the effect of pH (3-9), nanocomposite dose (0.025-2 g/L), initial pollutant concentration (5-100 mg/L), contact time (5-200 min), and temperature (5-50 °C) were studied. The results of the morphological properties of the magnetic nanocomposite confirmed the spherical shape of this nanoadsorber with an average size of 54±31 nm. BET analysis showed that modification of MnFe2O4 material with ZIF-8 as a new nanoadsorber leads to excellent modification of SBET (143.8 m2/g) and VTotal (0.44 cm3/g). The highest removal efficiency of tetracycline in optimal conditions (pH=7, contact time=120 min, nanocomposite dose=1.5 g/L, and temperature=20 °C for a tetracycline concentration of 20 mg/L) was 90.11%. As the temperature increased, the removal efficiency increased from 40.46% to 95.06% during 120 min, which indicates that the adsorption reaction is endothermic. In addition, the data obtained from the isotherms of Langmuir (R2=0.958), Freundlich (R2=0.534), and Temkin (R2=0.747) showed that the tetracycline adsorption is monolayer and on the homogeneous surface of the synthesized magnetic nanoadsorber. The elimination process of tetracycline by nanoadsorber followed the pseudo-second order model (R2=0.998). Investigating the effect of interfering ions also confirmed the decrease in the adsorption efficiency. Also, the investigation of the reusability of the synthesized magnetic nanoadsorber in tetracycline adsorption indicates that after eight cycles, the efficiency decreases by %16.51. According to the results, the magnetic nanocomposite synthesized in this work can be a suitable and economical adsorber for the removal of tetracycline from aqueous environments.
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Affiliation(s)
- Moslem Azqandi
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | - Bahman Ramavandi
- Environmental Health Engineering Department, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Negin Nasseh
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran; Department of Health Promotion and Education, School of Health, Birjand University of Medical Sciences, Birjand, Iran.
| | - Davood Zaarei
- Department of Polymer Engineering, Faculty of Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Farzaneh Fanaei
- Department of Environmental Health Engineering, Ferdows Faculty of Medical Sciences, Birjand University of Medical Sciences, Birjand, Iran
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Zheng Z, Shi R, Zhang X, Ni Y, Zhang H. Preparation of Activated Carbon-Reinforced Composite Beads Based on MnO 2/MCM-41@Fe 3O 4 and Calcium Alginate for Efficient Removal of Tetracycline in Aqueous Solutions. Polymers (Basel) 2024; 16:1115. [PMID: 38675034 PMCID: PMC11055116 DOI: 10.3390/polym16081115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/07/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Tetracycline (TC) is a common antibiotic; when untreated TC enters the environment, it will cause a negative impact on the human body through the food chain. In the present study, MnO2/MCM-41@Fe3O4 (FeMnMCM) prepared using a hydrothermal and redox method and Camellia oleifera shell-activated carbon (COFAC) prepared through alkali activation were encapsulated using alginate (ALG) and calcium chloride as a cross-linking matrix to give the composite beads COFAC-FeMnMCM-ALG. The resultant COFAC-FeMnMCM-ALG composite beads were then carefully characterized, showing a high immobilization of MnO2/MCM-41@Fe3O4, with porous COFAC as an effective bioadsorbent for enriching the pollutants in the treated samples. These bead catalysts were subsequently applied to the oxidative degradation of TC in a Fenton oxidation system. Several parameters affecting the degradation were investigated, including the H2O2 concentration, catalyst dosage, initial TC concentration, and temperature. A very high catalytic activity towards the degradation of TC was demonstrated. The electron paramagnetic resonance (EPR) and quenching results showed that ·OH and ·O2- were generated in the system, with ·OH as the main radical species. In addition, the COFAC-FeMnMCM-ALG catalyst exhibited excellent recyclability/reusability. We conclude that the as-prepared COFAC-FeMnMCM-ALG composite beads, which integrate MnO2 and Fe3O4 with bioadsorbents, provide a new idea for the design of catalysts for advanced oxidation processes (AOPs) and have great potential in the Fenton oxidation system to degrade toxic pollutants.
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Affiliation(s)
- Zhigong Zheng
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
- School of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350118, China; (R.S.); (X.Z.)
| | - Ronghui Shi
- School of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350118, China; (R.S.); (X.Z.)
| | - Xiaoping Zhang
- School of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350118, China; (R.S.); (X.Z.)
| | - Yonghao Ni
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Hui Zhang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
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Arp AP, Williamson ME, Vasquez M, Quintero G, Vargas Lowman A, Sagel A, Scott MJ. Doxycycline is a viable alternative to tetracycline for use in insect Tet-Off transgenic sexing systems, as assessed in the blowflies Cochliomyia hominivorax and Lucilia cuprina (Diptera: Calliphoridae). J Econ Entomol 2024; 117:650-659. [PMID: 38401129 DOI: 10.1093/jee/toae023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/26/2024]
Abstract
Transgenic insect strains with tetracycline repressible (Tet-Off) female-lethal genes provide significant advantages over traditional sterile insect techniques for insect population control, such as reduced diet and labor costs and more efficient population suppression. Tet-Off systems are suppressed by tetracycline-class antibiotics, most commonly tetracycline (Tc) or doxycycline (Dox), allowing for equal sex ratio colonies of transgenic insects when reared with Tc or Dox and male-only generations in their absence. Dox is a more stable molecule and has increased uptake than Tc, which could be advantageous in some insect mass-rearing systems. Here, we evaluated the suitability of Dox for rearing Tet-Off female-lethal strains of Australian sheep blowfly, Lucilia cuprina (Wiedemann, 1830) (Diptera: Calliphoridae), and New World screwworm, Cochliomyia hominivorax (Coquerel, 1858) (Diptera: Calliphoridae), and the effects of dosage on strain performance. For both species, colonies were able to be maintained with mixed-sex ratios at much lower dosages of Dox than Tc. Biological yields of C. hominivorax on either antibiotic were not significantly different. Reduction of Dox dosages in C. hominivorax diet did not affect biological performance, though rearing with 10 or 25 μg/mL was more productive than 50 μg/mL. Additionally, C. hominivorax mating performance and longevity were equal on all Dox dosages. Overall, Dox was a suitable antibiotic for mass-rearing Tet-Off female-lethal L. cuprina and C. hominivorax and was functional at much lower dosages than Tc.
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Affiliation(s)
- Alex P Arp
- USDA-ARS, Knipling-Bushland U.S. Livestock Insects Research Laboratory, Screwworm Research Site, Pacora, Panama
| | - Megan E Williamson
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Mario Vasquez
- USDA-ARS, Knipling-Bushland U.S. Livestock Insects Research Laboratory, Screwworm Research Site, Pacora, Panama
| | - Gladys Quintero
- USDA-ARS, Knipling-Bushland U.S. Livestock Insects Research Laboratory, Screwworm Research Site, Pacora, Panama
| | - Aidamalia Vargas Lowman
- Department of Genetics and Molecular Biology, University of Panama, Panama City, Panama
- Panama-USA Program for the Eradicationand Control of Screwworm (COPEG), Pacora, Panama
| | - Agustin Sagel
- USDA-ARS, Knipling-Bushland U.S. Livestock Insects Research Laboratory, Screwworm Research Site, Pacora, Panama
| | - Maxwell J Scott
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
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Safir M, Waizer I, Safir A, Hartstein ME, Artzi O. Percutaneous delivery of liquid tetracycline using a thermal resurfacing drug delivery system for the treatment of festoons. Lasers Surg Med 2024. [PMID: 38605495 DOI: 10.1002/lsm.23786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/08/2024] [Accepted: 03/29/2024] [Indexed: 04/13/2024]
Abstract
OBJECTIVES To examine the effects of percutaneous tetracycline delivery to the malar area using a thermomechanical device (Tixel) in patients suffering from festoons. METHODS This retrospective study included patients who underwent combination treatment with a thermomechanical device (Tixel) followed by application of topical tetracycline 1% at two private clinics between 2019 and 2023. Demographic and medical data, treatment parameters along with before and after treatment photographs were retrieved retrospectively. All patients were asked to answer a questionnaire, assessing self-reported pre and posttreatment disturbance, patient global impression of change (PGIC) score, overall satisfaction with treatment, and the onset and duration of treatment effect. Finally, three masked reviewers evaluated and graded the severity of before and after treatment photographs. RESULTS Twenty healthy patients received the combination treatment. The mean age was 59.4 ± 8.2 years (range: 45-72 years), and 90.0% (n = 18) were female. The number of treatment sessions per patient ranged from 2 to 8, mean of 5.0 ± 1.9, performed at 5.4 ± 1.2-week intervals. The masked reviewers' grading scores demonstrated a significant improvement (2.81 ± 1.3 before vs. 1.6 ± 1.1 after, p < 0.001). The self-reported disturbance caused by the festoons improved significantly as well (4.7 ± 0.98 vs. 1.7 ± 1.1, p < 0.001). On the PGIC score, 85% (17/20) reported moderate (grade 5) to significant (grade 7) improvement of symptoms and life quality after treatment. Improvement onset was reported to occur 11.2 ± 6.6 days after the first treatment (range 2-30 days), and 90% (18/20) of the patients reported improvement lasting at least 4 months after completion of the second treatment. CONCLUSIONS Topical tetracycline application following Tixel treatment induced significant improvement in patient with festoons.
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Affiliation(s)
- Margarita Safir
- Ophthalmology Department, Shamir Medical Center, The Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Inbar Waizer
- Department of Military Medicine, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ari Safir
- Division of Dermatology, Tel Aviv Sourasky Medical Center, The Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Morris E Hartstein
- Ophthalmology Department, Shamir Medical Center, The Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ofir Artzi
- Division of Dermatology, Tel Aviv Sourasky Medical Center, The Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Han Q, Shi X, Kang K, Cao Y, Cong L, Wang J. Silver Nanoparticles In Situ Enhanced Electrochemiluminescence of the Porphyrin Organic Matrix for Highly Sensitive and Rapid Monitoring of Tetracycline Residues. J Agric Food Chem 2024. [PMID: 38602881 DOI: 10.1021/acs.jafc.4c01525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Accurate monitoring of tetracycline (TC) residues in the environment is crucial for avoiding contaminant risk. Herein, a novel TC biosensor was facilely designed by integrating silver nanoparticles (Ag NPs) into the porphyrin metal-organic matrix (Ag@AgPOM) as a bifunctional electrochemiluminescence (ECL) probe. Different from the step-by-step synthesis of the co-reaction accelerator and ECL emitter, the co-reaction accelerators Ag NPs were in situ-grown on the surface of 5,10,15,20-tetrakis (4-carboxyphenyl) porphyrin (TCPP) via a simple one-pot approach. Symbiotic Ag NPs on Ag@AgPOM formed an intimate interface and increased the collision efficiency of the ECL reaction, achieving the ECL enhancement of TCPP. Under the optimized conditions, the ternary ECL biosensor showed a wide linear detection range toward TC with a low detection limit of 0.14 fmol L-1. Compared with the traditional HPLC and ELISA methods, satisfied analytical adaptability made this sensing strategy feasible to monitor TC in complex environmental samples.
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Affiliation(s)
- Qian Han
- School of Pharmacy, Key Laboratory of Innovative Drug Development and Evaluation, Hebei Medical University, Shijiazhuang, Hebei 050017, China
| | - Xueran Shi
- School of Pharmacy, Key Laboratory of Innovative Drug Development and Evaluation, Hebei Medical University, Shijiazhuang, Hebei 050017, China
| | - Kai Kang
- School of Pharmacy, Key Laboratory of Innovative Drug Development and Evaluation, Hebei Medical University, Shijiazhuang, Hebei 050017, China
| | - Yingbo Cao
- School of Pharmacy, Key Laboratory of Innovative Drug Development and Evaluation, Hebei Medical University, Shijiazhuang, Hebei 050017, China
| | - Lin Cong
- School of Pharmacy, Key Laboratory of Innovative Drug Development and Evaluation, Hebei Medical University, Shijiazhuang, Hebei 050017, China
| | - Jing Wang
- School of Pharmacy, Key Laboratory of Innovative Drug Development and Evaluation, Hebei Medical University, Shijiazhuang, Hebei 050017, China
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Depenbrock S, Schlesener C, Aly S, Williams D, ElAshmawy W, McArthur G, Clothier K, Wenz J, Fritz H, Chigerwe M, Weimer B. Antimicrobial Resistance Genes in Respiratory Bacteria from Weaned Dairy Heifers. Pathogens 2024; 13:300. [PMID: 38668255 PMCID: PMC11053459 DOI: 10.3390/pathogens13040300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/29/2024] Open
Abstract
Bovine respiratory disease (BRD) is the leading cause of mortality and antimicrobial drug (AMD) use in weaned dairy heifers. Limited information is available regarding antimicrobial resistance (AMR) in respiratory bacteria in this population. This study determined AMR gene presence in 326 respiratory isolates (Pasteurella multocida, Mannheimia haemolytica, and Histophilus somni) from weaned dairy heifers using whole genome sequencing. Concordance between AMR genotype and phenotype was determined. Twenty-six AMR genes for 8 broad classes of AMD were identified. The most prevalent, medically important AMD classes used in calf rearing, to which these genes predict AMR among study isolates were tetracycline (95%), aminoglycoside (94%), sulfonamide (94%), beta-lactam (77%), phenicol (50%), and macrolide (44%). The co-occurrence of AMR genes within an isolate was common; the largest cluster of gene co-occurrence encodes AMR to phenicol, macrolide, elfamycin, β-lactam (cephalosporin, penam cephamycin), aminoglycoside, tetracycline, and sulfonamide class AMD. Concordance between genotype and phenotype varied (Matthew's Correlation Coefficient ranged from -0.57 to 1) by bacterial species, gene, and AMD tested, and was particularly poor for fluoroquinolones (no AMR genes detected) and ceftiofur (no phenotypic AMR classified while AMR genes present). These findings suggest a high genetic potential for AMR in weaned dairy heifers; preventing BRD and decreasing AMD reliance may be important in this population.
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Affiliation(s)
- Sarah Depenbrock
- Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA
| | - Cory Schlesener
- Department of Population Health and Reproduction, 100K Pathogen Genome Project, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA;
| | - Sharif Aly
- Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California Davis, Tulare, CA 93274, USA
| | - Deniece Williams
- Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California Davis, Tulare, CA 93274, USA
| | - Wagdy ElAshmawy
- Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California Davis, Tulare, CA 93274, USA
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 12613, Egypt
| | - Gary McArthur
- Swinging Udders Veterinarian Services, Galt, CA 95632, USA
| | - Kristin Clothier
- California Animal Health and Food Safety Laboratory, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA
| | - John Wenz
- Field Disease Investigation Unit, Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99163, USA
| | - Heather Fritz
- California Animal Health and Food Safety Laboratory, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA
| | - Munashe Chigerwe
- Department of Veterinary Medicine and Epidemiology, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA
| | - Bart Weimer
- Department of Population Health and Reproduction, 100K Pathogen Genome Project, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA;
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Zhang L, Zhang Q, Chen T, Wang C, Xiao C, Guo J, Pang X, Liu S. Magnetic MoS 2/Fe 3O 4 composite as an effective activator of persulfate for the degradation of tetracycline: performance, activation mechanisms and degradation pathways. Water Sci Technol 2024; 89:1860-1878. [PMID: 38619908 DOI: 10.2166/wst.2024.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 02/18/2024] [Indexed: 04/17/2024]
Abstract
The activated persulfate (PS) process could produce sulfate radical (SO4·-) and rapidly degrade organic pollutants. The application of Fe3O4 as a promising PS activator was limited due to the rapid conversion of Fe2+ to Fe3+ on its surface. Mo4+ on MoS2 surface could be used as a reducing site to convert Fe3+ to Fe2+, but the separation and recovery of MoS2 was complex. In this study, MoS2/Fe3O4 was prepared to accelerate the Fe3+/Fe2+ cycle on Fe3O4 surface and achieved efficient separation of MoS2. The results showed that MoS2/Fe3O4 was more effective for PS activation compared to Fe3O4 or MoS2, with a removal efficiency of 91.8% for 20 mg·L-1 tetracycline (TC) solution under the optimal conditions. Fe2+ and Mo4+ on MoS2/Fe3O4 surface acted as active sites for PS activation with the generation of SO4•-, •OH, •O2-, and 1O2. Mo4+ acted as an electron donor to promote the Fe3+/Fe2+ cycling and thus improved the PS activation capability of MoS2/Fe3O4. The degradation pathways of TC were inferred as hydroxylation, ketylation of dimethylamino group and C-N bond breaking. This study provided a promising activated persulfate-based advanced oxidation process for the efficient degradation of TC by employing MoS2/Fe3O4 as an effective activator.
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Affiliation(s)
- Lanhe Zhang
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China; Lanhe Zhang and Qi Zhang are co-first authors
| | - Qi Zhang
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China; Lanhe Zhang and Qi Zhang are co-first authors
| | - Tengyue Chen
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Changyao Wang
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Chuan Xiao
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Jingbo Guo
- School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China E-mail:
| | - Xiangrui Pang
- School of Environment, Liaoning University, Shenyang 110036, China
| | - Shuhua Liu
- Jilin Power Supply Company, State Grid Jilin Electric Power Co., Ltd, Jilin 132000, China
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11
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Priyadarshi K, Panda S, Ranjan A, Yadav D, Nafe Z. Doxycycline-Associated Ulcerative Esophagitis: A Report of a Rare Case. Cureus 2024; 16:e58079. [PMID: 38741794 PMCID: PMC11088970 DOI: 10.7759/cureus.58079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2024] [Indexed: 05/16/2024] Open
Abstract
This study addresses the risks of medication-induced esophageal injury through a case presentation of a 30-year-old patient treated with doxycycline. The case highlights the importance of proper medication administration and the role of endoscopic evaluation in diagnosis and management. The broader discussion emphasizes the prevalence of such injuries, especially with antibiotics, and factors influencing their occurrence. A clinical study illustrates the corrosive effect of tetracycline, highlighting the role of pH and hyperosmolar properties. The study concludes with a reminder of the critical role of healthcare professionals in recognizing and managing medication-induced esophagitis, with endoscopy as a key diagnostic tool.
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Affiliation(s)
- Kunal Priyadarshi
- Internal Medicine, Manipal Tata Medical College, Jamshedpur, IND
- General Medicine, Tata Main Hospital, Jamshedpur, IND
| | - Suman Panda
- Internal Medicine and General Medicine, Tata Main Hospital, Jamshedpur, IND
| | - Amiya Ranjan
- Gastroenterology, Tata Main Hospital, Jamshedpur, IND
| | - Dheeraj Yadav
- General Medicine, Tata Main Hospital, Jamshedpur, IND
| | - Zaid Nafe
- Gastroenterology, Tata Main Hospital, Jamshedpur, IND
- Community Medicine, Dr. Vaishampayan Memorial Government Medical College (VMGMC), Solapur, IND
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12
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Lin CY, Yao CA. Antibiotics used to treat acne may be associated with inflammatory bowel disease: Response to Kridin et al "Isotretinoin and the risk of inflammatory bowel disease and irritable bowel syndrome: A large-scale global study". J Am Acad Dermatol 2024; 90:e135-e136. [PMID: 37951244 DOI: 10.1016/j.jaad.2023.09.088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 11/13/2023]
Affiliation(s)
- Chih-Yin Lin
- Department of Neurology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Chun-An Yao
- Department of Dermatology, Cathay General Hospital, Taipei, Taiwan.
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13
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Merle S, Bland S, Bénéjat L, Ducournau A, Jehanne Q, Bessède E, Jauvain M, Heluwaert F, Lehours P. Description of a Case of Helicobacter pylori Infection with In Vitro Resistance to Tetracycline: An Exceptional Event with No Consequences? Microb Drug Resist 2024; 30:164-167. [PMID: 38060816 DOI: 10.1089/mdr.2023.0247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024] Open
Abstract
Resistance in Helicobacter pylori to tetracycline is rare. We describe the case of an H. pylori strain with a high level of resistance to tetracycline (minimum inhibitory concentration = 12 mg/L). However, despite tetracycline resistance, bismuth quadritherapy was effective. Analysis of the patient's antibiotic treatment history over the previous 25 years revealed repeated 3-month courses of tetracycline for the treatment of acne, suggesting in vivo selection pressure responsible for the emergence of the triple mutation (AGA→TTC) in 16S rDNA associated with tetracycline resistance. This is a rare event but one worth monitoring, especially in view of the widespread use of bismuth quadritherapy for probabilistic treatment in countries where it is available.
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Affiliation(s)
- Sylvain Merle
- Service Hépatogastro-entérologie-Centre Hospitalier Annecy Genevois, Annecy, France
| | - Stéphane Bland
- Service de Bactériologie-Centre Hospitalier Annecy Genevois, Annecy, France
| | - Lucie Bénéjat
- Bacteriology Department, National Reference Center for Campylobacters and Helicobacters, CHU de Bordeaux, Bordeaux, France
| | - Astrid Ducournau
- Bacteriology Department, National Reference Center for Campylobacters and Helicobacters, CHU de Bordeaux, Bordeaux, France
| | - Quentin Jehanne
- Bacteriology Department, National Reference Center for Campylobacters and Helicobacters, CHU de Bordeaux, Bordeaux, France
| | - Emilie Bessède
- Bacteriology Department, National Reference Center for Campylobacters and Helicobacters, CHU de Bordeaux, Bordeaux, France
- Bordeaux Institute of Oncology, BRIC U1312, INSERM, Université de Bordeaux, CHU de Bordeaux, Bordeaux, France
| | - Marine Jauvain
- Bacteriology Department, National Reference Center for Campylobacters and Helicobacters, CHU de Bordeaux, Bordeaux, France
- Bordeaux Institute of Oncology, BRIC U1312, INSERM, Université de Bordeaux, CHU de Bordeaux, Bordeaux, France
| | - Fréderic Heluwaert
- Service Hépatogastro-entérologie-Centre Hospitalier Annecy Genevois, Annecy, France
| | - Philippe Lehours
- Bacteriology Department, National Reference Center for Campylobacters and Helicobacters, CHU de Bordeaux, Bordeaux, France
- Bordeaux Institute of Oncology, BRIC U1312, INSERM, Université de Bordeaux, CHU de Bordeaux, Bordeaux, France
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14
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Muhidinov ZK, Bobokalonov JT, Kimatov RS, Rahmonov ER, Komilova GI, Sherova ZU, Liu L. A new approach to the treatment of acute infection diseases with antibiotic-pectin formulae. J Infect Dev Ctries 2024; 18:407-419. [PMID: 38635613 DOI: 10.3855/jidc.18473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/30/2023] [Indexed: 04/20/2024] Open
Abstract
INTRODUCTION Intestinal infections are a significant health issue; antibiotics are essential in treating acute intestinal infections. However, evidence in the literature shows that the excessive use of antibiotics has created many threats to human health. This work aimed to study the impact of apple pectin in combination with antibiotics on treating patients with amebiasis and dysentery. METHODOLOGY Patients suffering from acute intestinal diseases (amebiasis and dysentery) were treated with traditional antibiotic therapy and a new formula containing antibiotics with low and high methoxylated apple pectin in a randomized block design. Four clinical trials were performed at the Infection Disease Hospital from 1998 until 2013. RESULTS The study demonstrated that the antibiotic-pectin formulae (APF) significantly reduced the severity of acute intestinal infection diseases and allowed patients to recover faster than conventional treatment. APF reduced the patient's stay in the hospital by 3.0 ± 1.0 days. The clinical trial findings demonstrated that applying APF in intestinal infection diseases helped maintain a constant concentration of the antibiotic in the blood and accelerated the clinical recovery of the patients. CONCLUSIONS It was concluded that using pectin with antibiotics could improve clinical outcomes in patients with acute infectious diseases. Research on elucidating the mechanisms of pectin digestion in the colon, polyphenol content, and its role in dysbiosis recovery, etc., is also considered.
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Affiliation(s)
- Zayniddin K Muhidinov
- Chemistry Institute of the National Academy of Sciences of Tajikistan, Dushanbe, Tajikistan
| | - Jamshed T Bobokalonov
- Chemistry Institute of the National Academy of Sciences of Tajikistan, Dushanbe, Tajikistan
| | | | | | | | - Zamira U Sherova
- Chemistry Institute of the National Academy of Sciences of Tajikistan, Dushanbe, Tajikistan
| | - LinShu Liu
- Eastern Regional Research Center, ARS, USDA, Wyndmoor, PA 19038, United States
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15
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Rose C, Tomas-Grau RH, Zabala B, Michel PP, Brunel JM, Chehín R, Raisman-Vozari R, Ferrié L, Figadère B. C9-Functionalized Doxycycline Analogs as Drug Candidates to Prevent Pathological α-Synuclein Aggregation and Neuroinflammation in Parkinson's Disease Degeneration. ChemMedChem 2024:e202300597. [PMID: 38526011 DOI: 10.1002/cmdc.202300597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/05/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Doxycycline, a semi-synthetic tetracycline, is a widely used antibiotic for treating mild-to-moderate infections, including skin problems. However, its anti-inflammatory and antioxidant properties, combined with its ability to interfere with α-synuclein aggregation, make it an attractive candidate for repositioning in Parkinson's disease. Nevertheless, the antibiotic activity of doxycycline restricts its potential use for long-term treatment of Parkinsonian patients. In the search for non-antibiotic tetracyclines that could operate against Parkinson's disease pathomechanisms, eighteen novel doxycycline derivatives were designed. Specifically, the dimethyl-amino group at C4 was reduced, resulting in limited antimicrobial activity, and several coupling reactions were performed at position C9 of the aromatic D ring, this position being one of the most reactive for introducing substituents. Using the Thioflavin-T assay, we found seven compounds were more effective than doxycycline in inhibiting α-synuclein aggregation. Furthermore, two of these derivatives exhibited better anti-inflammatory effects than doxycycline in a culture system of microglial cells used to model Parkinson's disease neuroinflammatory processes. Overall, through structure-activity relationship studies, we identified two newly designed tetracyclines as promising drug candidates for Parkinson's disease treatment.
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Affiliation(s)
- Clémence Rose
- BioCIS, CNRS, Université Paris-Saclay, 91400, Orsay, France
| | | | - Brenda Zabala
- Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Hôpital Pitié Salpêtrière, 75013, Paris, France
| | - Patrick Pierre Michel
- Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Hôpital Pitié Salpêtrière, 75013, Paris, France
| | - Jean-Michel Brunel
- UMR_MD1 Membranes et Cibles Thérapeutiques, U1261 INSERM, Aix-Marseille Université, 13385, Marseille, France
| | - Rosana Chehín
- IMMCA, CONICET-UNT-SIPROSA, Tucumán, 4000, Argentina
| | - Rita Raisman-Vozari
- Paris Brain Institute-ICM, Inserm, Sorbonne Université, CNRS, Hôpital Pitié Salpêtrière, 75013, Paris, France
| | - Laurent Ferrié
- BioCIS, CNRS, Université Paris-Saclay, 91400, Orsay, France
| | - Bruno Figadère
- BioCIS, CNRS, Université Paris-Saclay, 91400, Orsay, France
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16
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Li Y, Feng K, Li M, Li H, Zhang W, Yang X, Chen Y, Zheng L, Hsieh S, Yan B. A dual-mode ratiometric probe using europium-doped cyclen-functional carbon dots for fluorescent and point-of-care detection of tetracycline. Environ Technol 2024:1-9. [PMID: 38522072 DOI: 10.1080/09593330.2024.2323027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/18/2024] [Indexed: 03/26/2024]
Abstract
The overuse of tetracycline (TC) has led to the accumulation of antibiotic residues in drinking water and animal products, which can consequently lead to bacteria resistance and chronic disease in humans. Urgently addressing the need for a rapid, user-friendly, and point-of-care test for TC detection. In this work, we use cyclen and citric acid to synthesise carbon dots (CDs) with a unique ring-shaped structure on their surface and combine them with europium (Eu3+) to form an Eu-CDs fluorescent probe. In the presence of TC in aqueous systems, the Eu-CDs probe emits two distinctive fluorescent signals: the stable blue emission from cyclen-modified CDs and the red emission from Eu3+,showing a proportional increase with TC concentration. The developed Eu-CDs probe demonstrates accurate and selective detection capabilities for TC class antibiotics among various interfering factors. The Eu-CDs probe exhibits excellent linearity within the concentration range of 0.04-2.4 µM and achieves an impressive detection limit of 2.7 nM. Moreover, point-of-care Eu-CDs test strips are designed, allowing convenient on-site TC analysis through the detection of a colour change from blue to red under a portable UV light. The results highlight the effectiveness of the proposed dual-mode ratiometric fluorescent Eu-CDs probe and test strips, offering a practical point-of-care testing strategy for real-world TC detection applications.
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Affiliation(s)
- Yuanhua Li
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou, People's Republic of China
| | - Kejun Feng
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Mingzhu Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Material of Guangdong Province, Shantou University, Guangdong, People's Republic of China
| | - Huiling Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, People's Republic of China
| | - Weiluo Zhang
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Xiaofang Yang
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Yuan Chen
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Lei Zheng
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - ShihHuan Hsieh
- School of Chemistry and Materials Engineering, Huizhou University, Huizhou, People's Republic of China
| | - Binghua Yan
- College of Resources and Environment, Hunan Agricultural University, Changsha, People's Republic of China
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17
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Feng T, Yan S, Huang Y. Novel Enzyme-Assisted Recycle Amplification Strategy for Tetracycline Detection Based on Oxidized Single-Walled Carbon Nanohorns. Molecules 2024; 29:1444. [PMID: 38611724 PMCID: PMC11013240 DOI: 10.3390/molecules29071444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/20/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
In this study, oxidized single-walled carbon nanohorns (oxSWCNHs) were prepared using nitric acid oxidation and subsequently combined with 3'6-carboxyfluorescein through charge transfer to prepare fluorescent probes. These oxSWCNHs were used to quench fluorogen signals at short distances and dissociate ssDNA using cryonase enzymes. We established a method for rapidly detecting tetracycline (TC) in complex samples based on the amplification of cryonase enzyme signals. After optimizing the experimental conditions, our method showed a detection limit of 5.05 ng/mL, with good specificity. This method was used to determine the TC content in complex samples, yielding a recovery rate of 90.0-103.3%. This result validated the efficacy of our method in detecting TC content within complex samples.
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Affiliation(s)
- Tingting Feng
- College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Jinzhong 030619, China; (S.Y.); (Y.H.)
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18
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Kilusungu ZH, Kassam D, Kimera ZI, Mgaya FX, Nandolo W, Kunambi PP, Ulomi W, Matee MIN. Tetracycline and sulphonamide residues in farmed fish in Dar es Salaam, Tanzania and human health risk implications. Food Addit Contam Part B Surveill 2024:1-10. [PMID: 38516743 DOI: 10.1080/19393210.2024.2331106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/12/2024] [Indexed: 03/23/2024]
Abstract
In Africa, antibiotic residue investigations in animal food have primarily been focused on meat, neglecting farmed fish. This cross-sectional study conducted in Dar es Salaam, Tanzania, aimed to assess sulphonamide and tetracycline residues in farmed fish, comparing levels with Codex Alimentarius Commission's acceptable daily intake (ADI) and maximum residue limits (MRLs). A total of 84 farmed fish were sampled and analysed in the presence of tetracycline and sulphonamide residues. All samples were positive for sulphonamide residues (100%; n = 84), and 2.4% (n = 2) were positive for tetracycline and consequently also positive for both compounds. Tetracycline levels were below ADI and MRL, 28.5% (n = 24) surpassed the ADI, and 6% (n = 5) of the samples exceeded the MRL for sulphonamide. Regular monitoring of antibiotic residues in aquaculture products is crucial to mitigate health risks and expanding assessments to include other commonly used compounds is warranted.
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Affiliation(s)
- Zainabu H Kilusungu
- Department of Aquaculture and Fisheries Science, Africa Centre of Excellence in Aquaculture and Fisheries (AquaFish), Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
| | - Daud Kassam
- Department of Aquaculture and Fisheries Science, Africa Centre of Excellence in Aquaculture and Fisheries (AquaFish), Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
| | - Zuhura Idd Kimera
- Department of Environmental and Occupational Health, School of Public Health and Social Sciences, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Fauster X Mgaya
- Department of Microbiology and Immunology, School of Diagnostic Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Wilson Nandolo
- Department of Animal Science, Lilongwe University of Agriculture and Natural Resources(LUANAR), Lilongwe, Malawi
| | - Peter P Kunambi
- Department of Microbiology and Immunology, School of Diagnostic Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Winstone Ulomi
- Testing Department, Directorate of Testing and Calibration, Tanzania Bureau of Standards, Dar es Salaam, Tanzania
| | - Mecky I N Matee
- Department of Microbiology and Immunology, School of Diagnostic Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
- SACIDS Foundation for One Health (SACIDS), Sokoine University of Agriculture (SUA), Morogoro, Tanzania
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19
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Link DT, Viana GGF, Siqueira LP, Ferraz CM, Rodrigues RA, Mathias LA, Cardozo MV, Rossi GAM. Assessing the Microbial Quality of Shrimp ( Xiphonaeus kroyeri) and Mussels ( Perna perna) Illegally Sold in the Vitória Region, Brazil, and Investigating the Antimicrobial Resistance of Escherichia coli Isolates. Antibiotics (Basel) 2024; 13:242. [PMID: 38534677 DOI: 10.3390/antibiotics13030242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 03/28/2024] Open
Abstract
The consumption of seafood is crucial for food security, but poor hygiene along the food production chain can result in low microbiological quality, posing significant risks for public health and seafood quality. Thus, this study aimed to assess the microbiological quality and antimicrobial sensitivity of E. coli from 69 samples of illegally marketed shrimp and mussels in the Vitória Region, Brazil. These foods exhibited poor microbiological quality due to high counts of mesophilic, psychrotrophic, and enterobacteria microorganisms. While this issue is widespread in this area, shrimp samples displayed higher microbial counts compared to mussels, and fresh mussels had elevated counts of enterobacteria compared to frozen ones. Among the 10 E. coli isolates, none carried the genes blaCTX-M-1, blaCTX-M-2, blaCTX-M-3, blaCTX-M-15, mcr-1, mcr-2, mcr-3, mcr-4, and tet, associated with antibiotic resistance. Phenotypical resistance to tetracycline and fosfomycin was not observed in any isolate, while only 20% demonstrated resistance to ciprofloxacin. Regarding ampicillin and amoxicillin with clavulanic acid, 60% of isolates were resistant, 10% showed intermediate susceptibility, and 30% were sensitive. One isolate was considered simultaneously resistant to β-lactams and quinolones, and none were conserved as ESBL producers. These findings highlight the inherent risks to local public health that arise from consuming improperly prepared seafood in this area.
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Affiliation(s)
- Daniella Tosta Link
- Department of Veterinary Medicine, University of Vila Velha (UVV), Vila Velha 29102-920, ES, Brazil
| | | | - Lívia Pasolini Siqueira
- Department of Veterinary Medicine, University of Vila Velha (UVV), Vila Velha 29102-920, ES, Brazil
| | - Carolina Magri Ferraz
- Department of Veterinary Medicine, University of Vila Velha (UVV), Vila Velha 29102-920, ES, Brazil
| | - Romário Alves Rodrigues
- Department of Pathology, Reproduction and One Health, São Paulo State University (UNESP), Jaboticabal 14884-900, SP, Brazil
| | - Luis Antonio Mathias
- Department of Pathology, Reproduction and One Health, São Paulo State University (UNESP), Jaboticabal 14884-900, SP, Brazil
| | - Marita Vedovelli Cardozo
- Microorganism Physiology Laboratory, Department of Biomedical Science and Health, Universidade do Estado de Minas Gerais (UEMG), Passos 37900-004, MG, Brazil
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20
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Li Y, Zhang H, Zhang D, Yao S, Dong S, Chen Q, Fan F, Jia H, Dong M. Construction of Bi 2WO 6/g-C 3N 4 Z-Scheme Heterojunction and Its Enhanced Photocatalytic Degradation of Tetracycline with Persulfate under Solar Light. Molecules 2024; 29:1169. [PMID: 38474681 DOI: 10.3390/molecules29051169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/19/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Z-scheme heterojunction Bi2WO6/g-C3N4 was obtained by a novel hydrothermal process; its photocatalysis-persulfate (PDS) activation for tetracycline (TC) removal was explored under solar light (SL). The structure and photoelectrochemistry behavior of fabricated samples were well characterized by FT-IR, XRD, XPS, SEM-EDS, UV-vis DRS, Mott-Schottky, PL, photocurrent response, EIS and BET. The critical experimental factors in TC decomposition were investigated, including the Bi2WO6 doping ratio, catalyst dosage, TC concentration, PDS dose, pH, co-existing ion and humic acid (HA). The optimum test conditions were as follows: 0.4 g/L Bi2WO6/g-C3N4 (BC-3), 20 mg/L TC, 20 mg/L PDS and pH = 6.49, and the maximum removal efficiency of TC was 98.0% in 60 min. The decomposition rate in BC-3/SL/PDS system (0.0446 min-1) was 3.05 times higher than that of the g-C3N4/SL/PDS system (0.0146 min-1), which might be caused by the high-efficiency electron transfer inside the Z-scheme Bi2WO6/g-C3N4 heterojunction. Furthermore, the photogenerated hole (h+), superoxide (O2•-), sulfate radical (SO4•-) and singlet oxygen (1O2) were confirmed as the key oxidation factors in the BC-3/SL/PDS system for TC degradation by a free radical quenching experiment. Particularly, BC-3 possessed a wide application potential in actual antibiotic wastewater treatment for its superior catalytic performance that emerged in the experiment of co-existing components.
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Affiliation(s)
- Yukun Li
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Haiyang Zhang
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Dan Zhang
- Science and Technology Innovation Coordination Service Center of Laiwu District, Jinan 271100, China
| | - Sen Yao
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Shuying Dong
- MOE Key Laboratory of Yellow River and Huai River Water Environmental and Pollution Control, Henan Key Laboratory for Environmental Pollution Control, School of Environment, Henan Normal University, Xinxiang 453007, China
| | - Qishi Chen
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Fengjuan Fan
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Hongyuan Jia
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Mingjia Dong
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
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21
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Zhang X, Zhang Y, Zhao L. Yb-TCPP metal-organic framework as fluorescence sensor for detecting tetracycline in milk. LUMINESCENCE 2024; 39:e4720. [PMID: 38523056 DOI: 10.1002/bio.4720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/09/2024] [Accepted: 02/22/2024] [Indexed: 03/26/2024]
Abstract
Developing effective means for detecting contamination in milk during production, processing, and storage is both important and challenging. Tetracycline (TC), due to its use in treating animal infections, is among the most prevalent organic pollutants in milk, posing potential and significant threats to human health. However, efficient and in situ monitoring of TC remains lacking. Nevertheless, we have successfully developed a highly sensitive and selective fluorescence method for detecting TC in milk using a metal-organic framework material made from Yb-TCPP (ytterbium-tetra(4-carboxyphenyl)porphyrin). The calculated Stern-Volmer constant (KSV) was 12,310.88 M-1, and the detection limit was 2.44 × 10-6 M, surpassing previous reports. Crucially, Yb-TCPP fluoresces in the near-infrared region, promising its development into a specific fluorescence detection product for practical TC detection in milk, offering potential application value.
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Affiliation(s)
- Ximan Zhang
- School of Food Engineering, East University of Heilongjiang, Harbin, China
| | - Yun Zhang
- School of Food Engineering, East University of Heilongjiang, Harbin, China
| | - Lina Zhao
- School of Civil Engineering, Heilongjiang University, Harbin, China
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22
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Sodagari HR, Agrawal I, Sohail MN, Yudhanto S, Varga C. Monitoring antimicrobial resistance in Campylobacter isolates of chickens and turkeys at the slaughter establishment level across the United States, 2013-2021. Epidemiol Infect 2024; 152:e41. [PMID: 38403893 PMCID: PMC10945939 DOI: 10.1017/s0950268824000359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/27/2024] Open
Abstract
Foodborne infections with antimicrobial-resistant Campylobacter spp. remain an important public health concern. Publicly available data collected by the National Antimicrobial Resistance Monitoring System for Enteric Bacteria related to antimicrobial resistance (AMR) in Campylobacter spp. isolated from broiler chickens and turkeys at the slaughterhouse level across the United States between 2013 and 2021 were analysed. A total of 1,899 chicken-origin (1,031 Campylobacter coli (C. coli) and 868 Campylobacter jejuni (C. jejuni)) and 798 turkey-origin (673 C. coli and 123 C. jejuni) isolates were assessed. Chicken isolates exhibited high resistance to tetracycline (43.65%), moderate resistance to ciprofloxacin (19.5%), and low resistance to clindamycin (4.32%) and azithromycin (3.84%). Turkey isolates exhibited very high resistance to tetracycline (69%) and high resistance to ciprofloxacin (39%). The probability of resistance to all tested antimicrobials, except for tetracycline, significantly decreased during the latter part of the study period. Turkey-origin Campylobacter isolates had higher odds of resistance to all antimicrobials than isolates from chickens. Compared to C. jejuni isolates, C. coli isolates had higher odds of resistance to all antimicrobials, except for ciprofloxacin. The study findings emphasize the need for poultry-type-specific strategies to address differences in AMR among Campylobacter isolates.
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Affiliation(s)
- Hamid R. Sodagari
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Isha Agrawal
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Mohammad N. Sohail
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Setyo Yudhanto
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
| | - Csaba Varga
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, IL, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL, USA
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23
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Louly Nathan A, O'Broin C, Lally A. Increasing awareness of the risk of drug-induced intracranial hypertension in patients with acne requiring treatment for bacterial STI. Sex Transm Infect 2024; 100:121. [PMID: 38050136 DOI: 10.1136/sextrans-2023-055936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023] Open
Affiliation(s)
- Anusha Louly Nathan
- The Charles Centre Department of Dermatology, St Vincent's University Hospital, Dublin, Ireland
| | - Cathal O'Broin
- Department of Infectious Diseases, St Vincent's University Hospital, Dublin, Ireland
| | - Aoife Lally
- The Charles Centre Department of Dermatology, St Vincent's University Hospital, Dublin, Ireland
- Charles Institute of Dermatology, University College Dublin, Dublin, Ireland
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24
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Mena Navarro MP, Espinosa Bernal MA, Alvarado Osuna C, Ramos López MÁ, Amaro Reyes A, Arvizu Gómez JL, Pacheco Aguilar JR, Saldaña Gutiérrez C, Pérez Moreno V, Rodríguez Morales JA, García Gutiérrez MC, Álvarez Hidalgo E, Nuñez Ramírez J, Hernández Flores JL, Campos Guillén J. A Study of Resistome in Mexican Chili Powder as a Public Health Risk Factor. Antibiotics (Basel) 2024; 13:182. [PMID: 38391568 PMCID: PMC10886038 DOI: 10.3390/antibiotics13020182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/02/2024] [Accepted: 02/10/2024] [Indexed: 02/24/2024] Open
Abstract
Chili powder is an important condiment around the world. However, according to various reports, the presence of pathogenic microorganisms could present a public health risk factor during its consumption. Therefore, microbiological quality assessment is required to understand key microbial functional traits, such as antibiotic resistance genes (ARGs). In this study, metagenomic next-generation sequencing (mNGS) and bioinformatics analysis were used to characterize the comprehensive profiles of the bacterial community and antibiotic resistance genes (ARGs) in 15 chili powder samples from different regions of Mexico. The initial bacterial load showed aerobic mesophilic bacteria (AMB) ranging between 6 × 103 and 7 × 108 CFU/g, sporulated mesophilic bacteria (SMB) from 4.3 × 103 to 2 × 109 CFU/g, and enterobacteria (En) from <100 to 2.3 × 106 CFU/g. The most representative families in the samples were Bacillaceae and Enterobacteriaceae, in which 18 potential pathogen-associated species were detected. In total, the resistome profile in the chili powder contained 68 unique genes, which conferred antibiotic resistance distributed in 13 different classes. Among the main classes of antibiotic resistance genes with a high abundance in almost all the samples were those related to multidrug, tetracycline, beta-lactam, aminoglycoside, and phenicol resistance. Our findings reveal the utility of mNGS in elucidating microbiological quality in chili powder to reduce the public health risks and the spread of potential pathogens with antibiotic resistance mechanisms.
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Affiliation(s)
- Mayra Paola Mena Navarro
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Mexico
| | | | - Claudia Alvarado Osuna
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Guadalajara 44270, Mexico
| | - Miguel Ángel Ramos López
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Mexico
| | - Aldo Amaro Reyes
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Mexico
| | - Jackeline Lizzeta Arvizu Gómez
- Secretaría de Investigación y Posgrado, Centro Nayarita de Innovación y Transferencia de Tecnología (CENITT), Universidad Autónoma de Nayarit, Tepic 63173, Mexico
| | | | - Carlos Saldaña Gutiérrez
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. De las Ciencias S/N, Querétaro 76220, Mexico
| | - Victor Pérez Moreno
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Mexico
| | | | | | - Erika Álvarez Hidalgo
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Mexico
| | - Jorge Nuñez Ramírez
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Mexico
| | | | - Juan Campos Guillén
- Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas S/N, Querétaro 76010, Mexico
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25
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Zou Z, Xu L, Qiao W, Tang MS, Jin PK. [Efficacy and Mechanism of Tetracycline Adsorption by Boron-doped Mesoporous Carbon]. Huan Jing Ke Xue 2024; 45:885-897. [PMID: 38471927 DOI: 10.13227/j.hjkx.202303143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Using coconut shell and boric acid as raw materials, a new boron-doped coconut shell mesoporous carbon material (B-CSC) was prepared using a simple one-step pyrolysis method for efficient adsorption and removal of tetracycline pollutants in water. The effects of pyrolysis temperature and boron-carbon mass ratio on the adsorption performance under key preparation conditions were systematically studied, and their microstructure and physicochemical properties were characterized using a specific surface area and pore size analyzer (BET), field emission scanning electron microscopy (SEM), X-ray photon spectroscopy (XPS), Raman spectrometer (Raman), and Zeta potentiometer (Zeta). The effects of initial pH, different metal cations, and different background water quality conditions on the adsorption effect were systematically investigated. Combined with material characterization and correlation analysis, the enhanced adsorption mechanism was discussed and analyzed in depth. The results showed that one-step pyrolysis could incorporate boron into the surface and crystal lattice of coconut shell charcoal, resulting in a larger specific surface area and pore volume, and the main forms of boron introduced were H3BO3, B2O3, B, and B4C. The adsorption capacity of B-CSC to tetracycline reached 297.65 mg·g-1, which was 8.9 times that of the original coconut shell mesoporous carbon (CSC). At the same time, the adsorption capacity of B-CSC for rhodamine B (RhB), bisphenol A(BPA), and methylene blue (MB), common pollutants in aquatic environments, was as high as 372.65, 255.24, and 147.82 mg·g-1, respectively. The adsorption process of B-CSC to tetracycline was dominated by physicochemical interaction, mainly involving liquid film diffusion, surface adsorption, mesoporous and microporous diffusion, and active site adsorption, and H3BO3 was the main adsorption site. The adsorption strengthening mechanism mainly reduced the chemical inertness of the carbon network and enhanced its π-π interaction and hydrogen bonding with tetracycline molecules.
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Affiliation(s)
- Zhen Zou
- School of Environmental and Municipal Engineering, Xi ' an University of Architecture and Technology, Xi ' an 710055, China
| | - Lu Xu
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Wei Qiao
- School of Environmental and Municipal Engineering, Xi ' an University of Architecture and Technology, Xi ' an 710055, China
| | - Mao-Sen Tang
- School of Environmental and Municipal Engineering, Xi ' an University of Architecture and Technology, Xi ' an 710055, China
| | - Peng-Kang Jin
- School of Environmental and Municipal Engineering, Xi ' an University of Architecture and Technology, Xi ' an 710055, China
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China
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26
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Singh S, Gumbo T, Boorgula GD, Thomas TA, Philley JV, Srivastava S. Omadacycline pharmacokinetics/pharmacodynamics and efficacy against multidrug-resistant Mycobacterium tuberculosis in the hollow fiber system model. Antimicrob Agents Chemother 2024; 68:e0108023. [PMID: 38131673 PMCID: PMC10848755 DOI: 10.1128/aac.01080-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 11/03/2023] [Indexed: 12/23/2023] Open
Abstract
Seventy-five years ago, first-generation tetracyclines demonstrated limited efficacy in the treatment of tuberculosis but were more toxic than efficacious. We performed a series of pharmacokinetic/pharmacodynamic (PK/PD) experiments with a potentially safer third-generation tetracycline, omadacycline, for the treatment of multidrug-resistant tuberculosis (MDR-TB). Mycobacterium tuberculosis (Mtb) H37Rv and an MDR-TB clinical strain (16D) were used in the minimum inhibitory concentration (MIC) and static concentration-response studies in test tubes, followed by a PK/PD study using the hollow fiber system model of TB (HFS-TB) that examined six human-like omadacycline doses. The inhibitory sigmoid maximal effect (Emax) model and Monte Carlo experiments (MCEs) were used for data analysis and clinical dose-finding, respectively. The omadacycline MIC for both Mtb H37Rv and MDR-TB clinical strain was 16 mg/L but dropped to 4 mg/L with daily drug supplementation to account for omadacycline degradation. The Mycobacteria Growth Indicator Tube MIC was 2 mg/L. In the test tubes, omadacycline killed 4.39 log10 CFU/mL in 7 days. On Day 28 of the HFS-TB study, the Emax was 4.64 log10 CFU/mL, while exposure mediating 50% of Emax (EC50) was an area under the concentration-time curve to MIC (AUC0-24/MIC) ratio of 22.86. This translates to PK/PD optimal exposure or EC80 as AUC0-24/MIC of 26.93. The target attainment probability of the 300-mg daily oral dose was 90% but fell at MIC ≧4 mg/L. Omadacycline demonstrated efficacy and potency against both drug-susceptible and MDR-TB. Further studies are needed to identify the omadacycline effect in combination therapy for the treatment of both drug-susceptible and MDR-TB.
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Affiliation(s)
- Sanjay Singh
- Department of Medicine, School of Medicine, University of Texas at Tyler, Tyler, Texas, USA
| | - Tawanda Gumbo
- Quantitative Preclinical and Clinical Sciences Department, Praedicare Inc., Dallas, Texas, USA
- Hollow Fiber System and Experimental Therapeutics Laboratories, Praedicare Inc., Dallas, Texas, USA
| | - Gunavanthi D. Boorgula
- Department of Medicine, School of Medicine, University of Texas at Tyler, Tyler, Texas, USA
| | - Tania A. Thomas
- Division of Infectious Diseases and International Health, University of Virginia, Charlottesville, Virginia, USA
| | - Julie V. Philley
- Section of Pulmonary and Critical Care, School of Medicine, University of Texas at Tyler, Tyler, Texas, USA
| | - Shashikant Srivastava
- Department of Medicine, School of Medicine, University of Texas at Tyler, Tyler, Texas, USA
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas, USA
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27
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Zhao Y, Gao B, Liu J. Characterization of the Binding Properties of Ten Aptamers Using the Intrinsic Fluorescence of Oxy tetracycline. ChemistryOpen 2024:e202300250. [PMID: 38315075 DOI: 10.1002/open.202300250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/22/2024] [Indexed: 02/07/2024] Open
Abstract
Tetracyclines are a class of commonly used four-ringed antibiotics. A series of DNA aptamers were recently obtained using the capture-SELEX (systematic evolution of ligands by exponential enrichment) method to bind to oxytetracycline, and one of the aptamers can bind to a few other tetracycline antibiotics as well. Upon binding to the aptamers, the intrinsic fluorescence of tetracycline antibiotics can be enhanced. At least 10 different DNA aptamers were isolated from the previous selection experiment. In this work, a systematic characterization of these ten aptamers was performed. Each of these aptamers shows a different degree of fluorescence enhancement ranging from around 1-fold to over 20-fold. Fluorescence enhancement was boosted in the presence of Mg2+ . Isothermal titration calorimetry (ITC) studies were done and showed a great variety in dissociation constant (Kd ) from 62 nM to 1.6 μM. Steady-state fluorescence spectroscopy and fluorescence lifetime studies showed a correlation between fluorescence lifetime and degree of fluorescence enhancement. A few aptamers showed slow binding kinetics, although no correlation was found between the kinetics of fluorescence change and degree of fluorescence enhancement. This is the first study of ten different aptamers for the same target, providing fundamental insights into aptamer binding and bioanalytical applications.
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Affiliation(s)
- Yichen Zhao
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Biwen Gao
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Juewen Liu
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
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28
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Zhang YK, Li SS, Yang C, Zhang YF, Zhang XY, Liu JZ. Tetracycline inhibits tick host reproduction by modulating bacterial microbiota, gene expression and metabolism levels. Pest Manag Sci 2024; 80:366-375. [PMID: 37694307 DOI: 10.1002/ps.7766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/12/2023]
Abstract
BACKGROUND Ticks are disease vectors that are a matter of worldwide concern. Antibiotic treatments have been used to explore the interactions between ticks and their symbiotic microorganisms. In addition to altering the host microbial community, antibiotics can have toxic effects on the host. RESULTS In the tick Haemaphysalis longicornis, engorged females showed reproductive disruption after microinjection of tetracycline. Multi-omics approaches were implemented to unravel the mechanisms of tick reproductive inhibition in this study. There were no significant changes in bacterial density in the whole ticks on Day (D)2 or D4 after tetracycline treatment, whereas the bacterial microbial community was significantly altered, especially on D4. The relative abundances of the bacteria Staphylococcus, Bacillus and Pseudomonas decreased after tetracycline treatment, whereas the relative abundances of Coxiella and Rhodococcus increased. Ovarian transcriptional analysis revealed a cumulative effect of tetracycline treatment, as there was a significant increase in the number of differentially expressed genes with treatment time and a higher number of downregulated genes. The tick physiological pathways including lysosome, extracellular matrix (ECM)-receptor interaction, biosynthesis of ubiquinone and other terpenoids-quinones, insect hormone biosynthesis, and focal adhesion were significantly inhibited after 4 days of tetracycline treatment. Metabolite levels were altered after tetracycline treatment and the differences increased with treatment time. The differential metabolites were involved in a variety of physiological pathways; the downregulated metabolites were significantly enriched in the nicotinate and nicotinamide metabolism, galactose metabolism, and ether lipid metabolism pathways. CONCLUSIONS These findings indicate that tetracycline inhibits tick reproduction through the regulation of tick bacterial communities, gene expression and metabolic levels. The results may provide new strategies for tick control. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yan-Kai Zhang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Si-Si Li
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
- Hebei Key Laboratory of Wetland Ecology and Conservation, Hengshui University, Hengshui, China
| | - Chen Yang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Yu-Fan Zhang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Xiao-Yu Zhang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Jing-Ze Liu
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
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29
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Pabón-Carrasco M, Keco-Huerga A, Castro-Fernández M, Saracino IM, Fiorini G, Vaira D, Pérez-Aísa Á, Tepes B, Jonaitis L, Voynovan I, Lucendo AJ, Lanas Á, Martínez-Domínguez SJ, Almajano EA, Rodrigo L, Vologzanina L, Brglez Jurecic N, Denkovski M, Bujanda L, Abdulkhakov RA, Huguet JM, Fernández-Salazar L, Alcaide N, Velayos B, Silkanovna Sarsenbaeva A, Zaytsev O, Ilchishina T, Barrio J, Bakulin I, Perona M, Alekseenko S, Romano M, Gravina AG, Núñez Ó, Gómez Rodríguez BJ, Ledro-Cano D, Pellicano R, Bogomolov P, Domínguez-Cajal M, Almela P, Gomez-Camarero J, Bordin DS, Gasbarrini A, Kupčinskas J, Cano-Català A, Moreira L, Nyssen OP, Mégraud F, O'Morain C, Gisbert JP. Role of proton pump inhibitors dosage and duration in Helicobacter pylori eradication treatment: Results from the European Registry on H. pylori management. United European Gastroenterol J 2024; 12:122-138. [PMID: 38050339 PMCID: PMC10859719 DOI: 10.1002/ueg2.12476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 08/15/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND Management of Helicobacter pylori (H. pylori) infection requires co-treatment with proton pump inhibitors (PPIs) and the use of antibiotics to achieve successful eradication. AIM To evaluate the role of dosage of PPIs and the duration of therapy in the effectiveness of H. pylori eradication treatments based on the 'European Registry on Helicobacter pylori management' (Hp-EuReg). METHODS Hp-EuReg is a multicentre, prospective, non-interventionist, international registry on the routine clinical practice of H. pylori management by European gastroenterologists. All infected adult patients were systematically registered from 2013 to 2022. RESULTS Overall, 36,579 patients from five countries with more than 1000 patients were analysed. Optimal (≥90%) first-line-modified intention-to-treat effectiveness was achieved with the following treatments: (1) 14-day therapies with clarithromycin-amoxicillin-bismuth and metronidazole-tetracycline-bismuth, both independently of the PPI dose prescribed; (2) All 10-day (except 10-day standard triple therapy) and 14-day therapies with high-dose PPIs; and (3) 10-day quadruple therapies with clarithromycin-amoxicillin-bismuth, metronidazole-tetracycline-bismuth, and clarithromycin-amoxicillin-metronidazole (sequential), all with standard-dose PPIs. In first-line treatment, optimal effectiveness was obtained with high-dose PPIs in all 14-day treatments, in 10- and 14-day bismuth quadruple therapies and in 10-day sequential with standard-dose PPIs. Optimal second-line effectiveness was achieved with (1) metronidazole-tetracycline-bismuth quadruple therapy for 14- and 10 days with standard and high-dose PPIs, respectively; and (2) levofloxacin-amoxicillin triple therapy for 14 days with high-dose PPIs. None of the 7-day therapies in both treatment lines achieved optimal effectiveness. CONCLUSIONS We recommend, in first-line treatment, the use of high-dose PPIs in 14-day triple therapy and in 10-or 14-day quadruple concomitant therapy in first-line treatment, while standard-dose PPIs would be sufficient in 10-day bismuth quadruple therapies. On the other hand, in second-line treatment, high-dose PPIs would be more beneficial in 14-day triple therapy with levofloxacin and amoxicillin or in 10-day bismuth quadruple therapy either as a three-in-one single capsule or in the traditional scheme.
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Affiliation(s)
| | - Alma Keco-Huerga
- Department of Gastroenterology, Hospital de Valme, Sevilla, Spain
| | | | | | | | | | - Ángeles Pérez-Aísa
- Agencia Sanitaria Costa del Sol, Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC), Marbella, Spain
| | - Bojan Tepes
- Department of Gastroenterology, AM DC Rogaska, Rogaska Slatina, Slovenia
| | - Laimas Jonaitis
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Irina Voynovan
- Department of Gastroenterology, A.S. Loginov Moscow Clinical Scientific Center, Moscow, Russia
| | - Alfredo J Lucendo
- Department of Gastroenterology, Hospital General de Tomelloso, Tomelloso, Spain
| | - Ángel Lanas
- Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | | | | | - Luis Rodrigo
- Gastroenterology Unit, Hospital Universitario Central de Asturias, Oviedo, Spain
| | | | | | - Maja Denkovski
- Department of Gastroenterology, Interni Oddelek, Diagnostic Centre, Bled, Slovenia
| | - Luis Bujanda
- Hospital Donostia, Instituto Biodonostia, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad del País Vasco (UPV/EHU), San Sebastián, Spain
| | - Rustam A Abdulkhakov
- Department of Hospital Medicine, Kazan State Medical University, Kazan, Tatarstan, Russia
| | - Jose M Huguet
- Patología Digestiva, Hospital General Universitario de Valencia, Valencia, Spain
| | - Luis Fernández-Salazar
- Gastroenterology Department, Hospital Clínico Universitario de Valladolid (SACYL), Valladolid, Spain
| | - Noelia Alcaide
- Gastroenterology Department, Hospital Clínico Universitario de Valladolid (SACYL), Valladolid, Spain
| | - Benito Velayos
- Gastroenterology Department, Hospital Clínico Universitario de Valladolid (SACYL), Valladolid, Spain
| | | | - Oleg Zaytsev
- Gastroenterology Unit, First Clinical Medical Center Kovrov, Kovrov, Russia
| | | | - Jesús Barrio
- Unidad de Gastroenterología, Hospital Universitario Río Hortega, Gerencia Regional de Salud de Castilla y León (SACYL), Valladolid, Spain
| | - Igor Bakulin
- I.I. Mechnikov North-Western State Medical University, Saint Petersburg, Russia
| | - Monica Perona
- Gastroenterology Unit, Hospital Quiron Marbella, Marbella, Spain
| | | | - Marco Romano
- Gastroenterology and Endoscopy Unit, Dipartimento di Medicina di Precisione, Università Vanvitelli, Napoli, Italy
| | - Antonietta G Gravina
- Gastroenterology and Endoscopy Unit, Dipartimento di Medicina di Precisione, Università Vanvitelli, Napoli, Italy
| | - Óscar Núñez
- Gastroenterology Unit, Hospital Universitario La Moraleja, Madrid, Spain
| | | | - Diego Ledro-Cano
- Gastroenterology Department, Hospital Virgen de la Macarena, Sevilla, Spain
| | | | | | - Manuel Domínguez-Cajal
- Unidad de Gastroenterología y Hepatología, Hospital Universitario San Jorge, Huesca, Spain
| | - Pedro Almela
- Servicio de Medicina Digestiva, Hospital General Universitario de Castellón, Castellón, Spain
- Ciencias de la Salud (Medicina), Universidad CEU Cardenal Herrera, Castellón, Spain
| | | | - Dmitry S Bordin
- Department of Pancreatic, Biliary and Upper Digestive Tract Disorders, A. S. Loginov Moscow Clinical Scientific Center, Moscow, Russia
- Department of Propaedeutic of Internal Diseases and Gastroenterology, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, Moscow, Russia
- Department of Outpatient Therapy and Family Medicine, Tver State Medical University, Tver, Russia
| | - Antonio Gasbarrini
- Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Italy
| | - Juozas Kupčinskas
- Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Anna Cano-Català
- GOES Research Group, Althaia Xarxa Assistencial Universitària de Manresa, Manresa, Spain
| | - Leticia Moreira
- Department of Gastroenterology, Hospital Clínic Barcelona, Centro de Investigación Biomédica en Red en Enfermedades Hepáticas y Digestivas (CIBEREHD), IDIBAPS (Institut d'Investigacions Biomèdiques August Pi i Sunyer), University of Barcelona, Barcelona, Spain
| | - Olga P Nyssen
- Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
| | | | - Colm O'Morain
- Faculty of Health Sciences, Trinity College Dublin, Dublin, Ireland
| | - Javier P Gisbert
- Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
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30
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Zou Y, Li X, Mao Y, Song W, Liu Q. Enhanced Biofilm Formation by Tetracycline in a Staphylococcus aureus Naturally Lacking ica Operon and atl. Microb Drug Resist 2024; 30:82-90. [PMID: 38252794 DOI: 10.1089/mdr.2023.0186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024] Open
Abstract
Staphylococcus aureus is a major, widespread pathogen, and its biofilm-forming characteristics make it even more difficult to eliminate by biocides. Tetracycline (TCY) is a major broad-spectrum antibiotic, the residues of which can cause deleterious health impacts, and subinhibitory concentrations of TCY have the potential to increase biofilm formation in S. aureus. In this study, we showed how the biofilm formation of S. aureus 123786 is enhanced in the presence of TCY at specific subinhibitory concentrations. S. aureus 123786 used in this study was identified as Staphylococcal Cassette Chromosome mec III, sequence type239 and naturally lacking ica operon and atl gene. Two assays were performed to quantify the formation of S. aureus biofilm. In the crystal violet (CV) assay, the absorbance values of biofilm stained with CV at optical density (OD)540 nm increased after 8 and 16 hr of incubation when the concentration of TCY was 1/2 minimum inhibitory concentration (MIC), whereas at the concentration of 1/16 MIC, the absorbance values increased after 16 and 24 hr of incubation. In tetrazolium salt reduction assay, the absorbance value at OD490 nm of S. aureus 123786 biofilms mixed with 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium solution increased after 8 hr when the concentration of TCY was 1/4 MIC, which may be correlated with the higher proliferation and maturation of biofilm. In conclusion, the biofilm formation of S. aureus 123786 could be enhanced in the presence of TCY at specific subinhibitory concentrations.
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Affiliation(s)
- Yimin Zou
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xuejie Li
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Yanxiong Mao
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Wenjuan Song
- Department of Economics, School of Economics and Management, Zhejiang Sci-Tech University, Hangzhou, China
| | - Qing Liu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
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Zainuddin SLA, Latib N, Taib H, Ahmad B, Sabarudin MA, Wan Mohamad WM. Effectiveness of Conventional Periodontal Treatment With Tetracycline Fiber Versus Minocycline Gel Application Subgingivally in Periodontitis Patients. Cureus 2024; 16:e55167. [PMID: 38558744 PMCID: PMC10980540 DOI: 10.7759/cureus.55167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Locally delivered antibiotics are adjunctive therapies for the selective removal or inhibition of pathogenic microbes in combination with scaling and root planing (SRP) for the management of periodontitis. OBJECTIVE The primary objective of this study was to evaluate the effectiveness of tetracycline fibers against minocycline gel when used as local drug delivery in conjunction with SRP for treating periodontitis. METHODS AND MATERIALS This is a pilot randomized open single, blinded trial study comparing three treatment modalities: SRP with topical tetracycline fibers (SRP+T), SRP with topical minocycline HCL 2% gel (SRP+M), and SRP only as a control group. Probing pocket depth (PPD), clinical attachment loss (CAL), and bleeding on probing (BOP) percentages were recorded at baseline, one month, and at the end of three months. The data were subjected to analysis using IBM Corp. Released 2019. IBM SPSS Statistics for Windows, Version 26.0. Armonk, NY: IBM Corp. Repeated measures ANOVA was used to compare the clinical outcomes between the three treatment groups, accounting for the repeated measurements at baseline, one month, and three months. A p-value less than 0.05 at a 95% confidence interval was deemed statistically significant. RESULTS There were statistically significant changes within the groups in all the clinical parameters, including pocket depth, clinical attachment loss, and bleeding on probing score, at different time intervals, with the greatest mean pocket depth changes seen in the tetracycline group after one month (mean changes = 1.4 mm, P < 0.001) and over three months (mean changes = 1.79 mm, p < 0.001). For clinical attachment loss, after one month, the highest improvement in clinical level was seen in the minocycline group (mean changes = 0.7mm, p < 0.05), and the overall improvement was seen in the control group (mean changes = 1.1mm, p < 0.05). The minocycline group showed greater mean changes in bleeding on probing percentage, with the greatest changes after one month (mean changes = 19.34%, p < 0.001) and over three months (mean changes = 26.42%, p <0.001). However, there was no significant difference between the groups. CONCLUSION Locally delivered tetracycline and minocycline gel are effective as adjuncts to SRP and may improve the healing outcome in the management of periodontitis.
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Affiliation(s)
| | - Norjehan Latib
- School of Dental Sciences, Universiti Sains Malaysia, Kelantan, MYS
| | - Haslina Taib
- Unit of Periodontics, School of Dental Sciences, Universiti Sains Malaysia, Kelantan, MYS
| | - Basaruddin Ahmad
- Dental Public Health, School of Dental Sciences, Universiti Sains Malaysia, Kelantan, MYS
| | | | - Wan Majdiah Wan Mohamad
- School of Dental Sciences, Universiti Sains Malaysia, Kelantan, MYS
- School of Dental Sciences, Universiti Sains Malaysia, Kelantan, MYS
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Haberl Meglič S, Slokar D, Miklavčič D. Inactivation of antibiotic-resistant bacteria Escherichia coli by electroporation. Front Microbiol 2024; 15:1347000. [PMID: 38333581 PMCID: PMC10850576 DOI: 10.3389/fmicb.2024.1347000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/17/2024] [Indexed: 02/10/2024] Open
Abstract
Introduction In modern times, bacterial infections have become a growing problem in the medical community due to the emergence of antibiotic-resistant bacteria. In fact, the overuse and improper disposal of antibiotics have led to bacterial resistance and the presence of such bacteria in wastewater. Therefore, it is critical to develop effective strategies for dealing with antibiotic-resistant bacteria in wastewater. Electroporation has been found to be one of the most promising complementary techniques for bacterial inactivation because it is effective against a wide range of bacteria, is non-chemical and is highly optimizable. Many studies have demonstrated electroporation-assisted inactivation of bacteria, but rarely have clinical antibiotics or bacteria resistant to these antibiotics been used in the study. Therefore, the motivation for our study was to use a treatment regimen that combines antibiotics and electroporation to inactivate antibiotic-resistant bacteria. Methods We separately combined two antibiotics (tetracycline and chloramphenicol) to which the bacteria are resistant (with a different resistance mode) and electric pulses. We used three different concentrations of antibiotics (40, 80 and 150 µg/ml for tetracycline and 100, 500 and 2000 µg/ml for chloramphenicol, respectively) and four different electric field strengths (5, 10, 15 and 20 kV/cm) for electroporation. Results and discussion Our results show that electroporation effectively enhances the effect of antibiotics and inactivates antibiotic-resistant bacteria. The inactivation rate for tetracycline or chloramphenicol was found to be different and to increase with the strength of the pulsed electric field and/or the concentration of the antibiotic. In addition, we show that electroporation has a longer lasting effect (up to 24 hours), making bacteria vulnerable for a considerable time. The present work provides new insights into the use of electroporation to inactivate antibiotic-resistant bacteria in the aquatic environment.
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Affiliation(s)
- Saša Haberl Meglič
- Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
| | - Dejan Slokar
- Centre of Excellence for Biosensors, Instrumentation and Process Control, Ajdovščina, Slovenia
| | - Damijan Miklavčič
- Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
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Bogri A, Jensen EEB, Borchert AV, Brinch C, Otani S, Aarestrup FM. Transmission of antimicrobial resistance in the gut microbiome of gregarious cockroaches: the importance of interaction between antibiotic exposed and non-exposed populations. mSystems 2024; 9:e0101823. [PMID: 38095429 PMCID: PMC10805027 DOI: 10.1128/msystems.01018-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/17/2023] [Indexed: 01/24/2024] Open
Abstract
Antimicrobial resistance (AMR) is a major global health concern, further complicated by its spread via the microbiome bacterial members. While mathematical models discuss AMR transmission through the symbiotic microbiome, experimental studies are scarce. Herein, we used a gregarious cockroach, Pycnoscelus surinamensis, as an in vivo animal model for AMR transmission investigations. We explored whether the effect of antimicrobial treatment is detectable with metagenomic sequencing, and whether AMR genes can be spread and established in unchallenged (not treated with antibiotics) individuals following contact with treated donors, and under various frequencies of interaction. Gut and soil substrate microbiomes were investigated by metagenomic sequencing for bacterial community composition and resistome profiling. We found that tetracycline treatment altered the treated gut microbiome by decreasing bacterial diversity and increasing the abundance of tetracycline resistance genes. Untreated cockroaches that interacted with treated donors also had elevated tetracycline resistance. The levels of resistance differed depending on the magnitude and frequency of donor transfer. Additionally, treated donors showed signs of microbiome recovery due to their interaction with the untreated ones. Similar patterns were also recorded in the soil substrate microbiomes. Our results shed light on how interacting microbiomes facilitate AMR gene transmission to previously unchallenged hosts, a dynamic influenced by the interaction frequencies, using an in vivo model to validate theoretical AMR transmission models.IMPORTANCEAntimicrobial resistance is a rising threat to human and animal health. The spread of resistance through the transmission of the symbiotic gut microbiome is of concern and has been explored in theoretical modeling studies. In this study, we employ gregarious insect populations to examine the emergence and transmission of antimicrobial resistance in vivo and validate modeling hypotheses. We find that antimicrobial treatment increases the levels of resistance in treated populations. Most importantly, we show that resistance increased in untreated populations after interacting with the treated ones. The level of resistance transmission was affected by the magnitude and frequency of population mixing. Our results highlight the importance of microbial transmission in the spread of antimicrobial resistance.
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Affiliation(s)
- Amalia Bogri
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kgs., Lyngby, Denmark
| | | | - Asbjørn Vedel Borchert
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kgs., Lyngby, Denmark
| | - Christian Brinch
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kgs., Lyngby, Denmark
| | - Saria Otani
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kgs., Lyngby, Denmark
| | - Frank M. Aarestrup
- Research Group for Genomic Epidemiology, Technical University of Denmark, Kgs., Lyngby, Denmark
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Mohammadzadeh Kakhki R, Koohkan M. Promising photocatalytic activity of Ag 2SO 4-modified BiOCl/BFO heterostructures under visible light. Environ Technol 2024:1-11. [PMID: 38234136 DOI: 10.1080/09593330.2024.2304658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/23/2023] [Indexed: 01/19/2024]
Abstract
In this work, a simple co-precipitation method for the preparation of Ag2SO4@BiOCl@Bi25FeO40 (BFO) was developed. Ultraviolet-visible spectrophotometric analysis, X-ray diffraction patterns, Fourier transform infrared spectroscopy (FT-IR), and scanning field emission electron microscopy (FESEM) were performed to characterize the newly synthesized nanocomposite. In addition, the EDX method was used to determine the actual material quantities. The synthesized samples of Bi25FeO40 and Ag2SO4 Bi25FeO40 showed high absorption in the visible region. Furthermore, the photocatalytic activity was significantly improved by the addition of Ag2SO4. The results showed photcatalytic efficiency was reached to about 99% with 0.01 g of Ag2SO4@BiOCl@Bi25FeO40 in pH 4 under visible light. The isoelectric pH of the photocatalayst was obtained 5. Also, kinetic study showed a first order mechanism for photodegradation. Moreover, a mechanistic study was proposed for the newly synthesized heterostructures.
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Affiliation(s)
| | - Mahdieh Koohkan
- Department of Chemistry, Faculty of Sciences, University of Gonabad, Gonabad, Iran
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Rox K, Jansen R, Lukežič T, Greweling-Pils M, Herrmann J, Miethke M, Hüttel S, Hennessen F, Abou Fayad A, Holzhausen C, Lundberg CV, Teague J, Sudarman E, Bülter L, Hesterkamp T, Stadler M, Brönstrup M, Müller R. Pharmacokinetic and pharmacodynamic evaluation of the atypical tetracyclines chelocardin and amidochelocardin in murine infection models. Microbiol Spectr 2024; 12:e0128923. [PMID: 38047701 PMCID: PMC10783034 DOI: 10.1128/spectrum.01289-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 11/02/2023] [Indexed: 12/05/2023] Open
Abstract
IMPORTANCE There is a strong need to find novel treatment options against urinary tract infections associated with antimicrobial resistance. This study evaluates two atypical tetracyclines, namely chelocardin (CHD) and amidochelocardin (CDCHD), with respect to their pharmacokinetics and pharmacodynamics. We show CHD and CDCHD are cleared at high concentrations in mouse urine. Especially, CDCHD is highly effective in an ascending urinary tract infection model, suggesting further preclinical evaluation.
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Affiliation(s)
- Katharina Rox
- Department of Chemical Biology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
| | - Rolf Jansen
- Department of Microbial Drugs, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Tadeja Lukežič
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) and Department of Pharmacy, Saarland University Campus, Saarbrücken, Germany
| | - Marina Greweling-Pils
- Mouse Pathology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Jennifer Herrmann
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) and Department of Pharmacy, Saarland University Campus, Saarbrücken, Germany
| | - Marcus Miethke
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) and Department of Pharmacy, Saarland University Campus, Saarbrücken, Germany
| | - Stephan Hüttel
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Department of Microbial Drugs, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Fabienne Hennessen
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) and Department of Pharmacy, Saarland University Campus, Saarbrücken, Germany
| | - Antoine Abou Fayad
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) and Department of Pharmacy, Saarland University Campus, Saarbrücken, Germany
| | - Cornelia Holzhausen
- Mouse Pathology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | | | | | - Enge Sudarman
- Department of Microbial Drugs, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Lisa Bülter
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Translational Product Development Office, German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
| | - Thomas Hesterkamp
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Translational Product Development Office, German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
| | - Marc Stadler
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Department of Microbial Drugs, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Mark Brönstrup
- Department of Chemical Biology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
| | - Rolf Müller
- German Centre for Infection Research (DZIF), Partner Site Braunschweig-Hannover, Braunschweig, Germany
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) and Department of Pharmacy, Saarland University Campus, Saarbrücken, Germany
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Sebastian S, Huang J, Liu Y, Tandberg F, Collin M, Puthia M, Raina DB. Hydroxyapatite: An antibiotic recruiting moiety for local treatment and prevention of bone infections. J Orthop Res 2024; 42:212-222. [PMID: 37334776 DOI: 10.1002/jor.25650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/15/2023] [Accepted: 05/30/2023] [Indexed: 06/20/2023]
Abstract
Treatment of chronic osteomyelitis by radical debridement and filling of the dead space with antibiotic containing calcium sulfate/hydroxyapatite (CaS/HA) bone substitute has shown excellent long-term outcomes. However, in extensive infections, sessile bacteria may remain in bone cells or soft tissues protected by biofilm leading to recurrences. The primary aim of this study was to evaluate if systemically administrated tetracycline (TET) could bind to pre-implanted HA particles and impart an antibacterial effect locally. In vitro studies indicated that the binding of TET to nano- and micro-sized HA particles was rapid and plateaued already at 1 h. Since protein passivation of HA after in-vivo implantation could affect HA-TET interaction, we investigated the effect of serum exposure on HA-TET binding in an antibacterial assay. Although, serum exposure reduced the zone of inhibition (ZOI) of Staphylococcus aureus, a significant ZOI could still be observed after pre-incubation of HA with serum. We could in addition show that zoledronic acid (ZA) competes for the same binding sites as TET and that exposure to high doses of ZA led to reduced TET-HA binding. In an in-vivo setting, we then confirmed that systemically administered TET seeks HA particles that were pre-implanted in muscle and subcutaneous pouches in rats and mice respectively, preventing HA particles from being colonized by S. aureus. Clinical Significance: This study describes a new drug delivery method that could prevent bacterial colonization of a HA biomaterial and reduce recurrences in bone infection.
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Affiliation(s)
- Sujeesh Sebastian
- Department of Clinical Sciences, Orthopedics, Faculty of Medicine, Lund University, Lund, Sweden
| | - Jintian Huang
- Department of Clinical Sciences, Orthopedics, Faculty of Medicine, Lund University, Lund, Sweden
| | - Yang Liu
- Department of Clinical Sciences, Orthopedics, Faculty of Medicine, Lund University, Lund, Sweden
| | - Felix Tandberg
- Department of Clinical Sciences, Orthopedics, Faculty of Medicine, Lund University, Lund, Sweden
| | - Mattias Collin
- Division of Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Manoj Puthia
- Department of Clinical Sciences Lund, Dermatology, Faculty of Medicine, Lund University, Lund, Sweden
| | - Deepak Bushan Raina
- Department of Clinical Sciences, Orthopedics, Faculty of Medicine, Lund University, Lund, Sweden
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Tong P, Hang Z, Zhu W, Li Z. Simultaneous removal of tetracycline and copper ions from wastewater by flow-electrode capacitive deionization. Environ Technol 2023:1-8. [PMID: 38158763 DOI: 10.1080/09593330.2023.2298665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 12/14/2023] [Indexed: 01/03/2024]
Abstract
ABSTRACTTo effectively solve the problem of tetracycline (TC) and Cu2+ contamination in wastewater, this study innovatively proposed a low-energy flow-electrode capacitive deionization (FCDI) technology to simultaneously remove TC and Cu2+ from wastewater. The removal efficiencies of TC and Cu2+ using FCDI was investigated under various voltages, electrode flow rates, influent flow rates, and electrode liquid concentrations. The results showed that the removal efficiency of TC and Cu2+ was 60.78% and 84.43%, respectively. The energy consumption for TC and Cu2+ removal was only 1.76 and 1.10 kWh kg-1, which was lower than other electrochemical systems. The ion removal performance of the FCDI system remained stable after six cycles of continuous operation. These findings demonstrated the promising potential of FCDI as an innovative technology for the simultaneous removal of TC and Cu2+, presenting a significant prospects for application in the water treatment field.
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Affiliation(s)
- Peipei Tong
- Key Laboratory of Northwest Water Resource, Environment, and Ecology, MOE, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
- Xi'an Key Laboratory of Intelligent Equipment Technology for Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
| | - Zhenyu Hang
- Key Laboratory of Northwest Water Resource, Environment, and Ecology, MOE, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
- Xi'an Key Laboratory of Intelligent Equipment Technology for Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
| | - Weihuang Zhu
- Key Laboratory of Northwest Water Resource, Environment, and Ecology, MOE, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
- Xi'an Key Laboratory of Intelligent Equipment Technology for Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
| | - Zhihua Li
- Key Laboratory of Northwest Water Resource, Environment, and Ecology, MOE, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
- Xi'an Key Laboratory of Intelligent Equipment Technology for Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
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Rovira E, Moreno B, Razquin N, Blázquez L, Hernández-Alcoceba R, Fortes P, Pastor F. Engineering U1-Based Tetracycline-Inducible Riboswitches to Control Gene Expression in Mammals. ACS Nano 2023; 17:23331-23346. [PMID: 37971502 DOI: 10.1021/acsnano.3c01994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Synthetic riboswitches are promising regulatory devices due to their small size, lack of immunogenicity, and ability to fine-tune gene expression in the absence of exogenous trans-acting factors. Based on a gene inhibitory system developed at our lab, termed U1snRNP interference (U1i), we developed tetracycline (TC)-inducible riboswitches that modulate mRNA polyadenylation through selective U1 snRNP recruitment. First, we engineered different TC-U1i riboswitches, which repress gene expression unless TC is added, leading to inductions of gene expression of 3-to-4-fold. Second, we developed a technique called Systematic Evolution of Riboswitches by Exponential Enrichment (SEREX), to isolate riboswitches with enhanced U1 snRNP binding capacity and activity, achieving inducibilities of up to 8-fold. Interestingly, by multiplexing riboswitches we increased inductions up to 37-fold. Finally, we demonstrated that U1i-based riboswitches are dose-dependent and reversible and can regulate the expression of reporter and endogenous genes in culture cells and mouse models, resulting in attractive systems for gene therapy applications. Our work probes SEREX as a much-needed technology for the in vitro identification of riboswitches capable of regulating gene expression in vivo.
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Affiliation(s)
- Eric Rovira
- Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research (CIMA), University of Navarra (UNAV), Pamplona 31008, Spain
| | - Beatriz Moreno
- Department of Molecular Therapy, Aptamer Unit, Center for Applied Medical Research (CIMA), University of Navarra (UNAV), Pamplona 31008, Spain
| | - Nerea Razquin
- Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research (CIMA), University of Navarra (UNAV), Pamplona 31008, Spain
| | - Lorea Blázquez
- Department of Neurosciences, Biodonostia Health Research Institute, 20014 San Sebastián, Spain
- CIBERNED, ISCIII (CIBER, Carlos III Institute, Spanish Ministry of Sciences and Innovation), 28031 Madrid, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Ruben Hernández-Alcoceba
- Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research (CIMA), University of Navarra (UNAV), Pamplona 31008, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona 31008, Spain
- Spanish Network for Advanced Therapies (TERAV ISCIII), Madrid 28029, Spain
| | - Puri Fortes
- Department of Gene Therapy and Regulation of Gene Expression, Center for Applied Medical Research (CIMA), University of Navarra (UNAV), Pamplona 31008, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona 31008, Spain
- Spanish Network for Advanced Therapies (TERAV ISCIII), Madrid 28029, Spain
- Liver and Digestive Diseases Networking Biomedical Research Centre (CIBERehd), Madrid 28029, Spain
| | - Fernando Pastor
- Department of Molecular Therapy, Aptamer Unit, Center for Applied Medical Research (CIMA), University of Navarra (UNAV), Pamplona 31008, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona 31008, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid 28029, Spain
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Abadie RB, Keller CL, Jones NT, Mayeux EL, Klapper RJ, Anderson L, Kaye AM, Ahmadzadeh S, Varrassi G, Shekoohi S, Kaye AD. Review of Teratogenic Effects of Leflunomide, Accutane, Thalidomide, Warfarin, Tetracycline, and Angiotensin-Converting Enzyme Inhibitors. Cureus 2023; 15:e50465. [PMID: 38222129 PMCID: PMC10786328 DOI: 10.7759/cureus.50465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 12/13/2023] [Indexed: 01/16/2024] Open
Abstract
Teratogenic agents have been shown to have drastic and detrimental effects on fetuses if exposed to the agent during uterine life. The most sensitive time for a developing fetus is during the first trimester, and teratogenic exposure during this time can lead to severe deformities in the fetus. The Food and Drug Administration has categorized teratogenic agents based on the severity of their effect on the fetus; these categories include A, B, C, D, and X. Category A is the safest, with the most dangerous, and highly contraindicated in pregnant patients being Category X. This review article will discuss the teratogenic agents leflunomide, isotretinoin, thalidomide, warfarin, tetracycline, and angiotensinogen-converting enzyme inhibitors. Leflunomide can cause cranioschisis, exencephaly, and vertebral, head, and limb malformations. Isotretinoin's main teratogenic effects include central nervous system malformations, hydrocephalus, eye abnormalities, cardiac septal defects, thymus abnormalities, spontaneous abortions, and external ear abnormalities. Thalidomide has been shown to cause limb deformities, bowel atresia, and heart defects when the embryo is exposed to the agent during development. Warfarin can lead to spontaneous abortion and intrauterine death, as well as nasal hypoplasia, hypoplasia of extremities, cardiac defects, scoliosis, and mental retardation when exposed in utero. Tetracycline's teratogenic effects include gastrointestinal distress, esophageal ulceration and strictures, teeth discoloration, hepatotoxicity, and calcifications. Angiotensinogen-converting enzyme inhibitors can cause skull hyperplasia, anuria, hypotension, renal failure, lung hypoplasia, skeletal deformation, oligohydramnios, and fetal death. Teratogenic effects can be avoided if the pregnant patient is educated on the teratogenic effects of these agents.
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Affiliation(s)
- Raegan B Abadie
- School of Medicine, Louisiana State University Health Sciences Center, Shreveport, USA
| | - Camryn L Keller
- School of Medicine, Louisiana State University Health Sciences Center, Shreveport, USA
| | - Nicholas T Jones
- School of Medicine, Louisiana State University Health Sciences Center, Shreveport, USA
| | - Erin L Mayeux
- School of Medicine, Louisiana State University Health Sciences Center, Shreveport, USA
| | - Rachel J Klapper
- Department of Radiology, Louisiana State University Health Sciences Center, Shreveport, USA
| | - Lillian Anderson
- Department of Anesthesiology, Louisiana State University Health Sciences Center, Shreveport, USA
| | - Adam M Kaye
- Department of Pharmacy Practice, Thomas J. Long School of Pharmacy and Health Sciences University of the Pacific, Stockton, USA
| | - Shahab Ahmadzadeh
- Department of Anesthesiology, Louisiana State University Health Sciences Center, Shreveport, USA
| | | | - Sahar Shekoohi
- Department of Anesthesiology, Louisiana State University Health Sciences Center, Shreveport, USA
| | - Alan D Kaye
- Department of Anesthesiology, Louisiana State University Health Sciences Center, Shreveport, USA
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Ali NS, Long BD, Manzoor NF, Sismanis A, Coelho DH. Doxycycline-Induced Intracranial Hypertension Presenting as Unilateral Pulsatile Tinnitus. Otol Neurotol Open 2023; 3:e043. [PMID: 38516546 PMCID: PMC10950181 DOI: 10.1097/ono.0000000000000043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 10/09/2023] [Indexed: 03/23/2024]
Abstract
Background Pulsatile tinnitus (PT) is increasingly recognized as a cardinal symptom of idiopathic intracranial hypertension (IIH). However, clinicians should remain aware of other causes of nonidiopathic or secondary intracranial hypertension manifesting as PT. We present 2 patients with isolated PT (without accompanying headache, blurred vision, and papilledema) thought to be secondary to tetracycline-induced intracranial hypertension. To our knowledge, these are the first cases of PT as the presenting symptom of this condition. Cases A 41-year-old female (body mass index [BMI] 29 kg/m2) with ocular rosacea was initially treated with minocycline. Shortly after transitioning to oral doxycycline and erythromycin eye ointment, she noted left-sided PT. Her PT resolved after discontinuing doxycycline. In a second case, a 39-year-old female (BMI 19 kg/m2) with acne presented with a three-year history of left-sided PT while on long-term oral doxycycline for many years. She denied visual or auditory changes and atypical headaches. MRI findings were concerning for intracranial hypertension. Three months later, the patient was seen by neuro-ophthalmology, with findings suggesting prior papilledema. The patient reported PT improvement after discontinuing doxycycline. Conclusions This case series highlights 2 cases of isolated PT as the sole symptom of intracranial hypertension that resolved with tetracycline cessation. The presentation and unexpected improvement following tetracycline discontinuation are atypical compared with previous reports of tetracycline-induced intracranial hypertension. Clinicians should maintain a high index of suspicion for all types of intracranial hypertension (idiopathic and secondary), even in patients with a lower BMI. Current and prior medications should be reviewed when considering the etiology of intracranial hypertension.
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Affiliation(s)
- Naushin Shabnam Ali
- Department of Otolaryngology—Head and Neck Surgery, Virginia Commonwealth University, Richmond, Virginia
| | - Barry Daniel Long
- Department of Otolaryngology—Head and Neck Surgery, Virginia Commonwealth University, Richmond, Virginia
| | - Nauman F. Manzoor
- Department of Otolaryngology—Head and Neck Surgery, Virginia Commonwealth University, Richmond, Virginia
| | - Aristides Sismanis
- Department of Otolaryngology—Head and Neck Surgery, Virginia Commonwealth University, Richmond, Virginia
| | - Daniel H. Coelho
- Department of Otolaryngology—Head and Neck Surgery, Virginia Commonwealth University, Richmond, Virginia
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Naumkina VN, Lyamina VM, Zhinzhilo VA, Uflyand IE. Determination of Tetracycline Antibiotics in Milk by Solid-Phase Extraction Using a Coordination Polymer Based on Cobalt Trimesinate as a Sorbent. Polymers (Basel) 2023; 15:4539. [PMID: 38231966 PMCID: PMC10708372 DOI: 10.3390/polym15234539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/18/2023] [Accepted: 11/24/2023] [Indexed: 01/19/2024] Open
Abstract
The coordination polymer was obtained based on cobalt trimesinate. It was characterized by elemental analysis, IR spectroscopy, X-ray diffraction analysis and scanning electron microscopy. The polymer was studied as a sorbent for solid-phase extraction of tetracycline antibiotics. Cobalt trimesinate had a high adsorption capacity (400 mg/g). Antibiotic adsorption followed the pseudo-second-order kinetic model and the Freundlich isotherm model. The process proceeded spontaneously, as indicated by the calculated thermodynamic parameters. The resulting coordination polymer has good stability and recyclability. The possibility of using cobalt trimesinate for the determination of tetracycline in various milk samples was investigated. This work holds great promise for the development and application of a cobalt trimesinate-based coordination polymer for use in sample preparation to replace the time-consuming vacuum evaporation procedure with a relatively simple solid-phase extraction procedure.
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Affiliation(s)
| | | | | | - Igor E. Uflyand
- Department of Chemistry, Southern Federal University, Rostov-on-Don 344090, Russia (V.A.Z.)
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Zhu T, Chen J, Zeng S, Chen J, Qi C. Highly Stable Fluorescent-Traffic-Light Sensor for Point-of-Care Detection of Tetracycline. ACS Sens 2023; 8:4272-4280. [PMID: 37862265 DOI: 10.1021/acssensors.3c01620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
Fluorescent point-of-care (POC) sensors have found great utility in fields like clinical diagnosis, food testing, and environmental monitoring. Herein, we developed a highly stable POC sensor that enabled the visual detection of tetracycline (TC) in a distinct fluorescent-traffic-light manner. In the sensor, a composite material of copper nanoclusters and metal-organic framework (CuNCs@MOF-5) prepared with a facile one-pot synthetic strategy was employed as the core element for target recognition and signal transduction. As evidenced by experiments, the as-prepared CuNCs@MOF-5 exhibited significantly improved fluorescence properties in terms of emission enhancement (about 28-fold) and stability improvement (over 110 days) compared to the CuNCs without confining and protection by MOF-5. More importantly, it was found that TC could uniquely interact with Zn(II) to trigger the disassembly of CuNCs@MOF-5, resulting in green fluorescence emission from the TC-Zn(II) complex and red fluorescence weakening of CuNCs. On the basis of this finding, a simple and stable sensor was proposed for POC detection of TC, which demonstrated high sensitivity, selectivity, and reproducibility. In addition to homogeneous visual detection in a 96-well plate, a CuNCs@MOF-5-contained agarose gel array was easily fabricated to achieve direct detection of TC in milk without any pretreatment, thanks to the size-sieving effect of the gel. Moreover, a test paper array was also put forward for low-cost TC detection, which indicates the extensibility and practicability of this sensing strategy.
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Affiliation(s)
- Ting Zhu
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering of Hubei Normal University, Huangshi, Hubei 435002, China
| | - Jinyang Chen
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering of Hubei Normal University, Huangshi, Hubei 435002, China
| | - Shasha Zeng
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering of Hubei Normal University, Huangshi, Hubei 435002, China
| | - Jintao Chen
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering of Hubei Normal University, Huangshi, Hubei 435002, China
| | - Chunjiao Qi
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering of Hubei Normal University, Huangshi, Hubei 435002, China
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Lobiuc A, Pavăl NE, Dimian M, Covașă M. Nanopore Sequencing Assessment of Bacterial Pathogens and Associated Antibiotic Resistance Genes in Environmental Samples. Microorganisms 2023; 11:2834. [PMID: 38137978 PMCID: PMC10745997 DOI: 10.3390/microorganisms11122834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/07/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023] Open
Abstract
As seen in earlier and present pandemics, monitoring pathogens in the environment can offer multiple insights on their spread, evolution, and even future outbreaks. The present paper assesses the opportunity to detect microbial pathogens and associated antibiotic resistance genes, in relation to specific pathogen sources, by using nanopore sequencing in municipal waters and wastewaters in Romania. The main results indicated that waters collecting effluents from a meat processing facility exhibit altered communities' diversity and abundance, with reduced values (101-108 and 0.86-0.91) of Chao1 and, respectively, Simpson diversity indices and Campylobacterales as main order, compared with other types of municipal waters where the same diversity index had much higher values of 172-214 and 0.97-0.98, and Burkholderiaceae and Pseudomonadaceae were the most abundant families. Moreover, the incidence and type of antibiotic resistance genes were significantly influenced by the proximity of antibiotic sources, with either tetracycline (up to 45% of total reads) or neomycin, streptomycin and tobramycin (up to 3.8% total reads) resistance incidence being shaped by the sampling site. As such, nanopore sequencing proves to be an easy-to-use, accessible molecular technique for environmental pathogen surveillance and associated antibiotic resistance genes.
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Affiliation(s)
- Andrei Lobiuc
- Department of Biomedical Sciences, Faculty of Medicine and Biological Sciences, “Ştefan cel Mare” University, 720229 Suceava, Romania; (N.-E.P.); (M.C.)
| | - Naomi-Eunicia Pavăl
- Department of Biomedical Sciences, Faculty of Medicine and Biological Sciences, “Ştefan cel Mare” University, 720229 Suceava, Romania; (N.-E.P.); (M.C.)
| | - Mihai Dimian
- Department of Computers, Electronics and Automation, Stefan cel Mare University of Suceava, 720229 Suceava, Romania;
| | - Mihai Covașă
- Department of Biomedical Sciences, Faculty of Medicine and Biological Sciences, “Ştefan cel Mare” University, 720229 Suceava, Romania; (N.-E.P.); (M.C.)
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Mendoza-Gomora GJ, Gutierrez-Segura E, Solache-Rios M, López-Téllez G, Garcia-Fabila MM. Removal of tetracycline by natural and iron-modified orange peel from aqueous solutions: processes in batch, column, and mechanism. Environ Technol 2023:1-14. [PMID: 37970827 DOI: 10.1080/09593330.2023.2283785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 10/08/2023] [Indexed: 11/19/2023]
Abstract
Natural (OP) and iron modified orange peel (Fe-OP) were used for the removal of tetracycline from aqueous solutions in batch and fixed bed column systems. The adsorbents were characterized by infrared spectroscopy (IR) and the morphologies of the surfaces before and after tetracycline removal were determined by scanning electron microscope and the elemental analysis was performed by X-ray dispersive spectroscopy (EDS). The kinetic behaviour showed that the equilibrium was reached in 24 and 10 h for OP and Fe-OP respectively, the data were adjusted to both the pseudo second order and intraparticle diffusion models which indicate a chemisorption mechanism and the adsorption process is controlled by the intraparticle diffusion process. The isotherms showed that the adsorption capacity was eight times higher for Fe-OP than OP and the data were best fitted to the Freundlich model indicating that the materials are heterogeneous. The effect of flow rate, influent concentration and adsorbent mass were determined in the column system. The data were adjusted to the Thomas, Adams-Bohart and Yoon-Nelson models, and the best adjustment of data was with the first one. The adsorption capacities in the column system were about half of those obtained in the batch system. These adsorbents show good properties for the removal of tetracycline from water.
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Affiliation(s)
- G J Mendoza-Gomora
- Facultad de Química, Universidad Autónoma del Estado de México,Toluca Estado de México, México
| | - E Gutierrez-Segura
- Facultad de Química, Universidad Autónoma del Estado de México,Toluca Estado de México, México
| | - M Solache-Rios
- Departamento de Química, Instituto Nacional de Investigaciones Nucleares, Estado de México México
| | - G López-Téllez
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM (CCIQS), Toluca Estado de México, México
| | - M M Garcia-Fabila
- Facultad de Química, Universidad Autónoma del Estado de México,Toluca Estado de México, México
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de Sousa T, Silva C, Alves O, Costa E, Igrejas G, Poeta P, Hébraud M. Determination of Antimicrobial Resistance and the Impact of Imipenem + Cilastatin Synergy with Tetracycline in Pseudomonas aeruginosa Isolates from Sepsis. Microorganisms 2023; 11:2687. [PMID: 38004699 PMCID: PMC10673103 DOI: 10.3390/microorganisms11112687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/24/2023] [Accepted: 11/01/2023] [Indexed: 11/26/2023] Open
Abstract
Pseudomonas aeruginosa is among the most ubiquitous bacteria in the natural world, exhibiting metabolic and physiological versatility, which makes it highly adaptable. Imipenem + cilastatin and tetracycline are antibiotic combinations commonly used to treat infections caused by P. aeruginosa, including serious infections such as sepsis. In the context of bacterial infections, biofilm, formed by bacterial cells surrounded by extracellular substances forming a matrix, plays a pivotal role in the resistance of P. aeruginosa to antibiotics. This study aimed to characterize a representative panel of P. aeruginosa isolates from septicemias, assessing their susceptibility to various antibiotics, specifically, imipenem + cilastatin and tetracycline, and the impact of these treatments on biofilm formation. Results from antibiotic susceptibility tests revealed sensitivity in most isolates to six antibiotics, with four showing near or equal to 100% sensitivity. However, resistance was observed in some antibiotics, albeit at minimal levels. Notably, tetracycline showed a 100% resistance phenotype, while imipenem + cilastatin predominantly displayed an intermediate phenotype (85.72%), with some resistance (38.1%). Microdilution susceptibility testing identified effective combinations against different isolates. Regarding biofilm formation, P. aeruginosa demonstrated the ability to produce biofilms. The staining of microtiter plates confirmed that specific concentrations of imipenem + cilastatin and tetracycline could inhibit biofilm production. A significant proportion of isolates exhibited resistance to aminoglycoside antibiotics because of the presence of modifying genes (aac(3)-II and aac(3)-III), reducing their effectiveness. This study also explored various resistance genes, unveiling diverse resistance mechanisms among P. aeruginosa isolates. Several virulence genes were detected, including the las quorum-sensing system genes (lasI and lasR) in a significant proportion of isolates, contributing to virulence factor activation. However, genes related to the type IV pili (T4P) system (pilB and pilA) were found in limited isolates. In conclusion, this comprehensive study sheds light on the intricate dynamics of P. aeruginosa, a remarkably adaptable bacterium with a widespread presence in the natural world. Our findings provide valuable insights into the ongoing battle against P. aeruginosa infections, highlighting the need for tailored antibiotic therapies and innovative approaches to combat biofilm-related resistance.
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Affiliation(s)
- Telma de Sousa
- MicroART-Antibiotic Resistance Team, Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (T.d.S.); (C.S.); (P.P.)
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Associated Laboratory for Green Chemistry, University NOVA of Lisbon, 1099-085 Caparica, Portugal
| | - Catarina Silva
- MicroART-Antibiotic Resistance Team, Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (T.d.S.); (C.S.); (P.P.)
| | - Olimpia Alves
- Hospital Centre of Trás-os-Montes and Alto Douro, Clinical Pathology Department, 5000-801 Vila Real, Portugal; (O.A.); (E.C.)
| | - Eliana Costa
- Hospital Centre of Trás-os-Montes and Alto Douro, Clinical Pathology Department, 5000-801 Vila Real, Portugal; (O.A.); (E.C.)
| | - Gilberto Igrejas
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Associated Laboratory for Green Chemistry, University NOVA of Lisbon, 1099-085 Caparica, Portugal
| | - Patricia Poeta
- MicroART-Antibiotic Resistance Team, Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal; (T.d.S.); (C.S.); (P.P.)
- Associated Laboratory for Green Chemistry, University NOVA of Lisbon, 1099-085 Caparica, Portugal
- CECAV—Veterinary and Animal Research Centre, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Veterinary and Animal Research Centre, Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), 5000-801 Vila Real, Portugal
| | - Michel Hébraud
- INRAE, Université Clermont Auvergne, UMR Microbiologie Environnement Digestif Santé (MEDiS), 63122 Saint-Genès-Champanelle, France
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Widiastuti R, Martindah E, Anastasia Y. Tetracycline residues in fresh dairy milk from three districts in Indonesia: Occurrence and dietary exposure assessment. Vet World 2023; 16:2230-2235. [PMID: 38152253 PMCID: PMC10750746 DOI: 10.14202/vetworld.2023.2230-2235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/05/2023] [Indexed: 12/29/2023] Open
Abstract
Background and Aim Milk can introduce antibiotics into the human diet which poses a public health risk. Therefore, a study to determine the tetracycline residue in dairy milk and its health risk assessment is needed. A cross-sectional study was performed to detect tetracycline residues in fresh dairy milk samples collected from the districts of Malang, Boyolali, and Padang Panjang, Indonesia, and to evaluate dietary exposure to tetracycline residues through milk consumption in 10-12-year-old children and adults. Materials and Methods A total of 203 fresh dairy milk samples were collected from local and smallholder dairy cows in Malang, Boyolali, and Padang Panjang in April and August 2018. High-performance liquid chromatography equipped with a photodiode array at 355 and 368 nm was used to detect tetracycline residues. Data were evaluated for dietary exposure assessment. Results The results showed that the most common residue found was chlortetracycline (8.37%), followed by tetracycline (7.88%) and oxytetracycline (5.91%) in the concentration range of 14.8-498.4, 11.7-49.4, and 11.6-85.6 ng/g, respectively. Seven (3.45%) samples exceeded the maximum residue limit (MRL) for chlortetracycline. However, neither oxytetracycline nor tetracycline residues exceeded the MRL. The mean concentration of the tetracycline residues was 21.76-137.05 ng/g, resulting in an estimated daily intake of 16.46-172.83 ng/kg body weight/day. Conclusion Tetracycline residues were found in almost all milk sampling locations. The highest prevalence and residue concentration were obtained from chlortetracycline. Estimated daily intake of tetracycline through milk by 10-12-year-old children and adult consumers was low and the risk to consumers was negligible.
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Affiliation(s)
- Raphaella Widiastuti
- Research Center for Veterinary Science, The National Research and Innovation Agency, Cibinong Science Center, Jl. Raya Jakarta-Bogor KM. 46, Cibinong, Kab. Bogor 16911, Indonesia
- Indonesian Research Center for Veterinary Science, Ministry of Agriculture, Jl. RE Martadinata 30, Bogor 16114, Indonesia
| | - Eny Martindah
- Research Center for Veterinary Science, The National Research and Innovation Agency, Cibinong Science Center, Jl. Raya Jakarta-Bogor KM. 46, Cibinong, Kab. Bogor 16911, Indonesia
- Indonesian Research Center for Veterinary Science, Ministry of Agriculture, Jl. RE Martadinata 30, Bogor 16114, Indonesia
| | - Yessy Anastasia
- Research Center for Veterinary Science, The National Research and Innovation Agency, Cibinong Science Center, Jl. Raya Jakarta-Bogor KM. 46, Cibinong, Kab. Bogor 16911, Indonesia
- Indonesian Research Center for Veterinary Science, Ministry of Agriculture, Jl. RE Martadinata 30, Bogor 16114, Indonesia
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Canè C, Casciaro B, Di Somma A, Loffredo MR, Puglisi E, Battaglia G, Mellini M, Cappiello F, Rampioni G, Leoni L, Amoresano A, Duilio A, Mangoni ML. The antimicrobial peptide Esc(1-21)-1c increases susceptibility of Pseudomonas aeruginosa to conventional antibiotics by decreasing the expression of the MexAB-OprM efflux pump. Front Chem 2023; 11:1271153. [PMID: 37942400 PMCID: PMC10628714 DOI: 10.3389/fchem.2023.1271153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/09/2023] [Indexed: 11/10/2023] Open
Abstract
Introduction: The increase in bacterial strains resistant to conventional antibiotics is an alarming problem for human health and could lead to pandemics in the future. Among bacterial pathogens responsible for a large variety of severe infections there is Pseudomonas aeruginosa. Therefore, there is an urgent need for new molecules with antimicrobial activity or that can act as adjuvants of antibiotics already in use. In this scenario, antimicrobial peptides (AMPs) hold great promise. Recently, we characterized a frog-skin AMP derived from esculentin-1a, namely Esc(1-21)-1c, endowed with antipseudomonal activity without being cytotoxic to human cells. Methods: The combinatorial effect of the peptide and antibiotics was investigated through the checkerboard assay, differential proteomic and transcriptional analysis. Results: Here, we found that Esc(1-21)-1c can synergistically inhibit the growth of P. aeruginosa cells with three different antibiotics, including tetracycline. We therefore investigated the underlying mechanism implemented by the peptide using a differential proteomic approach. The data revealed a significant decrease in the production of three proteins belonging to the MexAB-OprM efflux pump upon treatment with sub-inhibitory concentration of Esc(1-21)-1c. Down-regulation of these proteins was confirmed by transcriptional analysis and direct measurement of their relative levels in bacterial cells by tandem mass spectrometry analysis in multiple reaction monitoring scan mode. Conclusion: These evidences suggest that treatment with Esc(1-21)-1c in combination with antibiotics would increase the intracellular drug content making bacteria more susceptible to the antibiotic. Overall, these results highlight the importance of characterizing new molecules able to synergize with conventional antibiotics, paving the way for the development of alternative therapeutic strategies based on AMP/antibiotic formulations to counteract the emergence of resistant bacterial strains and increase the use of "old" antibiotics in medical practice.
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Affiliation(s)
- Carolina Canè
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
| | - Bruno Casciaro
- Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, Rome, Italy
| | - Angela Di Somma
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
- CEINGE Biotecnologie Avanzate, Naples, Italy
| | - Maria Rosa Loffredo
- Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, Rome, Italy
| | - Elena Puglisi
- Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, Rome, Italy
| | - Gennaro Battaglia
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
| | - Marta Mellini
- Department of Science, University “Roma Tre”, Rome, Italy
| | - Floriana Cappiello
- Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, Rome, Italy
| | - Giordano Rampioni
- Department of Science, University “Roma Tre”, Rome, Italy
- IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Livia Leoni
- Department of Science, University “Roma Tre”, Rome, Italy
| | - Angela Amoresano
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
- National Institute of Biostructure and Biosystems (INBB), Rome, Italy
| | - Angela Duilio
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
- National Institute of Biostructure and Biosystems (INBB), Rome, Italy
| | - Maria Luisa Mangoni
- Laboratory Affiliated to Pasteur Italia-Fondazione Cenci Bolognetti, Department of Biochemical Sciences, Sapienza University of Rome, Rome, Italy
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Nguyen TH, Vu AT. Investigation of enhanced degradation of the antibiotic under visible in novel B/ZnO/TiO 2nanocomposite and its electrical energy consumption. Nanotechnology 2023; 35:015709. [PMID: 37793362 DOI: 10.1088/1361-6528/acffce] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 10/04/2023] [Indexed: 10/06/2023]
Abstract
Both ZnO and TiO2are common semiconducting metal oxides with high mechanical and chemical durability. However, they only have good photocatalytic ability in the UV region, besides the rapid recombination between electrons and holes reduces the efficiency of the decomposition of organic substances. To improve their catalytic efficiency, in this study, ZnO and TiO2were doped with B to produce the novel B/ZnO/TiO2nanocomposites for degrading tetracycline hydrochloride (TCH) in the aqueous solution. The characteristics of samples were analyzed by the diffuse reflectance ultraviolet-visible (DR/UV-vis), scanning electron microscope (SEM), energy-dispersive (EDS), Fourier transform infrared spectroscopy (FT-IR), and x-ray diffraction (XRD) techniques. The 3B/ZnO/TiO2sample had a band gap energy (Eg) of 3.21 eV. Although the B/ZnO/TiO2sample had a tightly aggregated morphology composed of many nanoparticles in 33-137 nm, it still exhibited a higher uniformly and photocatalytic efficiency than ZnO and ZnO/TiO2. At the optimal doped B of 3 wt%, the degradation efficiency (DE) was achieved at 96.33% with a rate constant of 0.067 min-1. The factors that affect the photocatalytic process such as the initial TCH concentration, the catalyst content, and the pH solution were comprehensively investigated. In addition, the stability of 3B/ZnO/TiO2nanocomposite was evaluated via three consecutive cycles and the DE was 69.75% in 3rd cycle. The Z-scheme mechanism was proposed for the photocatalytic mechanism of TCH in the B/ZnO/TiO2catalyst. In addition, electrical energy consumption was estimated that the electrical energy per order only was 29.05 kW.h.l-1.
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Affiliation(s)
- Thu Huong Nguyen
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Anh-Tuan Vu
- School of Chemical Engineering, Hanoi University of Science and Technology, Hanoi, Vietnam
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Gagné-Thivierge C, Vincent AT, Paquet VE, Gauthier ML, Denicourt M, Lambert MÈ, Charette SJ. Draft genome sequences of four Staphylococcus hyicus strains, SC302, SC304, SC306, and SC310, isolated from swine from Eastern Canada. Microbiol Resour Announc 2023; 12:e0062623. [PMID: 37772837 PMCID: PMC10586159 DOI: 10.1128/mra.00626-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 08/25/2023] [Indexed: 09/30/2023] Open
Abstract
The bacterium Staphylococcus hyicus causes porcine exudative epidermitis in piglets, which represents both health and welfare concerns. Few genome sequences of this pathogen are published. We provide four additional ones to help future genomic analysis of S. hyicus. These are genomes of strains isolated from Canadian swine.
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Affiliation(s)
- Cynthia Gagné-Thivierge
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Quebec City, Quebec, Canada
- Département de Biologie, Faculté des Sciences et de Génie, Université Laval, Quebec City, Quebec, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Quebec City, Quebec, Canada
| | - Antony T. Vincent
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Quebec City, Quebec, Canada
- Département Des Sciences Animales, Faculté Des Sciences de L'agriculture et de L'alimentation, Université Laval, Quebec City, Quebec, Canada
- Centre de recherche en infectiologie porcine et avicole (CRIPA) - Fonds de recherche du Québec - Nature et technologies, Saint-Hyacinthe, Quebec, Canada
| | - Valérie E. Paquet
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Quebec City, Quebec, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Quebec City, Quebec, Canada
| | - Marie-Lou Gauthier
- Laboratoire de santé animale, Ministère de l’Agriculture, des Pêcheries et de l’Alimentation du Québec (MAPAQ), Saint-Hyacinthe, Quebec, Canada
| | - Martine Denicourt
- Centre de recherche en infectiologie porcine et avicole (CRIPA) - Fonds de recherche du Québec - Nature et technologies, Saint-Hyacinthe, Quebec, Canada
- Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréa, Saint-Hyacinthe, Quebec, Canada
| | - Marie-Ève Lambert
- Centre de recherche en infectiologie porcine et avicole (CRIPA) - Fonds de recherche du Québec - Nature et technologies, Saint-Hyacinthe, Quebec, Canada
- Département de sciences cliniques, Faculté de médecine vétérinaire, Université de Montréa, Saint-Hyacinthe, Quebec, Canada
| | - Steve J. Charette
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Quebec City, Quebec, Canada
- Département de Biologie, Faculté des Sciences et de Génie, Université Laval, Quebec City, Quebec, Canada
- Département de Biochimie, de Microbiologie et de Bio-informatique, Faculté des Sciences et de Génie, Université Laval, Quebec City, Quebec, Canada
- Centre de recherche en infectiologie porcine et avicole (CRIPA) - Fonds de recherche du Québec - Nature et technologies, Saint-Hyacinthe, Quebec, Canada
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Suo S, Ma W, Zhang S, Han Z, Wang Y, Li Y, Xiong Y, Liu Y, He C, Fang P. MOF-Derived Spindle-Shaped Z-Scheme ZnO/ZnFe 2O 4 Heterojunction: A Magnetic Recovery Catalyst for Efficient Photothermal Degradation of Tetracycline Hydrochloride. Materials (Basel) 2023; 16:6639. [PMID: 37895621 PMCID: PMC10608245 DOI: 10.3390/ma16206639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023]
Abstract
The development of photocatalysts with a wide spectral response and effective carrier separation capability is essential for the green degradation of tetracycline hydrochloride. In this study, a magnetic recyclable Z-scheme ZnO/ZnFe2O4 heterojunction (ZZF) was successfully constructed via the solid phase method, using MIL-88A(Fe)@Zn as the precursor. An appropriate band gap width and Z-scheme charge transfer mechanism provide ZZF with excellent visible light absorption performance, efficient charge separation, and a strong redox ability. Under visible light irradiation, the degradation efficiency of tetracycline hydrochloride for the optimal sample can reach 86.3% within 75 min in deionized water and 92.9% within 60 min in tap water, exhibiting superior stability and reusability after five cycles. Moreover, the catalyst in the water can be conveniently recovered by magnetic force. After visible light irradiation for 70 min, the temperature of the reaction system increased by 21.9 °C. Its degradation constant (35.53 × 10-3 min-1) increased to 5.1 times that at room temperature (6.95 × 10-3 min-1). Using thermal energy enhances the kinetic driving force of the reactants and facilitates carrier migration, meaning that more charge is available for the production of •O2- and •OH. This study provides a potential candidate for the efficient degradation of tetracycline hydrochloride by combining thermal catalysis with a photocatalytic heterojunction.
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Affiliation(s)
- Shilong Suo
- Key Laboratory of Nuclear Solid State Physics Hubei Province, School of Physics and Technology, Wuhan University, Wuhan 430072, China; (S.S.)
| | - Wenmei Ma
- Key Laboratory of Nuclear Solid State Physics Hubei Province, School of Physics and Technology, Wuhan University, Wuhan 430072, China; (S.S.)
| | - Siyi Zhang
- Key Laboratory of Nuclear Solid State Physics Hubei Province, School of Physics and Technology, Wuhan University, Wuhan 430072, China; (S.S.)
| | - Ziwu Han
- Key Laboratory of Nuclear Solid State Physics Hubei Province, School of Physics and Technology, Wuhan University, Wuhan 430072, China; (S.S.)
| | - Yumin Wang
- Key Laboratory of Nuclear Solid State Physics Hubei Province, School of Physics and Technology, Wuhan University, Wuhan 430072, China; (S.S.)
| | - Yuanyuan Li
- Key Laboratory of Nuclear Solid State Physics Hubei Province, School of Physics and Technology, Wuhan University, Wuhan 430072, China; (S.S.)
| | - Yi Xiong
- Department of Microelectronics, School of Mathematical & Physical Sciences, Wuhan Textile University, Wuhan 430073, China
| | - Yong Liu
- Key Laboratory of Nuclear Solid State Physics Hubei Province, School of Physics and Technology, Wuhan University, Wuhan 430072, China; (S.S.)
| | - Chunqing He
- Key Laboratory of Nuclear Solid State Physics Hubei Province, School of Physics and Technology, Wuhan University, Wuhan 430072, China; (S.S.)
| | - Pengfei Fang
- Key Laboratory of Nuclear Solid State Physics Hubei Province, School of Physics and Technology, Wuhan University, Wuhan 430072, China; (S.S.)
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