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Rochlin I, Chu D, Gmelin M, Le J, Furie MB, Thanassi DG, Kim HK. Optimization of artificial membrane feeding system for lone star ticks, Amblyomma americanum (Acari: Ixodidae), and experimental infection with Rickettsia amblyommatis (Rickettsiales: Rickettsiaceae). J Med Entomol 2024; 61:442-453. [PMID: 38104248 PMCID: PMC10936164 DOI: 10.1093/jme/tjad158] [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: 08/30/2023] [Revised: 11/02/2023] [Accepted: 12/05/2023] [Indexed: 12/19/2023]
Abstract
With the introduction of siliconized artificial membranes, various artificial feeding systems (AFS) for hard ticks (Ixodidae) have been developed over the last decades. Most AFS utilize similar core components but employ diverse approaches, materials, and experimental conditions. Published work describes different combinations of the core components without experimental optimizations for the artificial feeding of different tick species. Amblyomma americanum L., (Acari: Ixodidae) (lone star tick) is a known vector and reservoir for diverse tick-borne pathogens, such as Rickettsia amblyommatis and Ehrlichia chaffeensis. Ongoing environmental changes have supported the expansion of A. americanum into new habitats, contributing to increased tick-borne diseases in endemic areas. However, a significant knowledge gap exists in understanding the underlying mechanisms involved in A. americanum interactions with tick-borne pathogens. Here, we performed a systematic analysis and developed an optimized AFS for nymphal lone star ticks. Our results demonstrate that Goldbeater's membranes, rabbit hair, hair extract, and adult lone star ticks significantly improved the attachment rate of nymphal ticks, whereas tick frass and frass extract did not. With the optimized conditions, we achieved an attachment rate of 46 ± 3% and a success rate of 100% (i.e., one or more attached ticks) in each feeding experiment for nymphal lone star ticks. When fed on sheep blood spiked with R. amblyommatis, both nymphal and adult lone star ticks acquired and maintained R. amblyommatis, demonstrating the feasibility of studying A. americanum-pathogen interactions using AFS. Our study can serve as a roadmap to optimize and improve AFS for other medically relevant tick species.
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Affiliation(s)
- Ilia Rochlin
- Center for Infectious Diseases, Stony Brook University, Stony Brook, NY, USA
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, NY, USA
| | - Dennis Chu
- Center for Infectious Diseases, Stony Brook University, Stony Brook, NY, USA
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, NY, USA
| | - Matthew Gmelin
- Center for Infectious Diseases, Stony Brook University, Stony Brook, NY, USA
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, NY, USA
| | - Justin Le
- Center for Infectious Diseases, Stony Brook University, Stony Brook, NY, USA
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, NY, USA
| | - Martha B Furie
- Center for Infectious Diseases, Stony Brook University, Stony Brook, NY, USA
- Department of Pathology, Stony Brook University, Stony Brook, NY, USA
| | - David G Thanassi
- Center for Infectious Diseases, Stony Brook University, Stony Brook, NY, USA
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, NY, USA
| | - Hwan Keun Kim
- Center for Infectious Diseases, Stony Brook University, Stony Brook, NY, USA
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, NY, USA
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Hofmann B, Gmelin M, Metz D, Raspé C, Wienke A, Treede H, Simm A. Cardiac Surgery Score (CASUS) for Outcome Prediction in Patients Treated with Extra Corporal Life Support (ECLS). Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- B. Hofmann
- Department of Cardiac Surgery, University Hospital Halle (Saale), Halle (Saale), Germany
| | - M. Gmelin
- Department of Urology, St. Barbara Hospital, Gladbeck, Germany
| | - D. Metz
- Department of Cardiac Surgery, University Hospital Halle (Saale), Halle (Saale), Germany
| | - C. Raspé
- Department of Anesthesiology and Critical Care Medicine, University Hospital Halle (Saale), Halle (Saale), Germany
| | - A. Wienke
- Institute of Medical Epidemiology, Biostatistics and Informatics, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - H. Treede
- Department of Cardiac Surgery, University Hospital Halle (Saale), Halle (Saale), Germany
| | - A. Simm
- Department of Cardiac Surgery, University Hospital Halle (Saale), Halle (Saale), Germany
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Bolz A, Braecklein M, Moor C, Gmelin M. [The technical possibilities in telemonitoring of physiological parameters]. Herzschrittmacherther Elektrophysiol 2005; 16:134-42. [PMID: 16177939 DOI: 10.1007/s00399-005-0477-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2005] [Accepted: 07/26/2005] [Indexed: 05/04/2023]
Abstract
For decades, telemonitoring of vital parameters has been a recurring topic among experts. Because of its lack of economical advantages it has not established itself as a standard up to now. Thanks to novel wireless communication technologies such as Bluetooth or Zigbee, the enormous technological progress in mobile communication via GSM, GPRS, as well as UMTS and various radical medical changes within disease management programs, currently very promising new potentials for telemonitoring are appearing. This article summarizes the current technological developments, discusses their advantages and drawbacks, and deduces scenarios and technical requirements for future system architectures.
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MESH Headings
- Blood Pressure Determination/instrumentation
- Blood Pressure Determination/methods
- Blood Pressure Determination/trends
- Body Weight
- Diagnosis, Computer-Assisted/instrumentation
- Diagnosis, Computer-Assisted/methods
- Diagnosis, Computer-Assisted/trends
- Electrocardiography, Ambulatory/instrumentation
- Electrocardiography, Ambulatory/methods
- Electrocardiography, Ambulatory/trends
- Humans
- Internet
- Monitoring, Ambulatory/instrumentation
- Monitoring, Ambulatory/methods
- Monitoring, Ambulatory/trends
- Oximetry/instrumentation
- Oximetry/methods
- Oximetry/trends
- Technology Assessment, Biomedical
- Telecommunications/instrumentation
- Telemedicine/instrumentation
- Telemedicine/methods
- Telemedicine/trends
- Telemetry/instrumentation
- Telemetry/methods
- Telemetry/trends
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Affiliation(s)
- A Bolz
- Institut für Biomedizinische Technik, Universität Karlsruhe (TH), Kaiserstr. 12, 76135 Karlsruhe, Germany.
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Abstract
Electronic Patient Records are already widely accepted and used in hospitals for Data-Management and simplification of Data-Archivation. Using them in Preventive Medicine, where the Patient is directly involved in all processes seems to be even more useful. Therefore avetana has joined a project where the establishment of a Personal Health Record for a Preventive Medical Care Center has to be realized to improve the Flow of Information before and after the actual examination. Especially aspects of Patient-Monitoring and Tele-Home-Care will be covered in this Paper.
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Affiliation(s)
- M Gmelin
- Avetana GmbH, Brändströmstr. 8, 76275 Ettlingen.
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Abstract
The goal of this project is to develop a mobile device for transmitting images for the aftercare of surgical patients within the framework of the competence center TELTRA. After designing and evaluating different platforms and cameras, it was decided to develop for a compact flash camera card and an HSCSD modem which is based on and can be plugged into a pocket PC. The recorded images are sent with the help of a Java program from the pocket PC over an IrDA interface to the HSCSD mobile telephone, and then to the web server, where it is saved in a digital patient record.
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Affiliation(s)
- S Sani-Kick
- FZI Forschungszentrum Informatik Karlsruhe, Germany.
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Abstract
Today, mobile computing provides enough resources to be used in medical applications. Patient treatment is a process that involves multiple partners. All those partners need access to common patient-data and need to make changes to the patients' health record. Therefore, data that the partners collect and change with mobile devices has to be synchronized on a central server to form the master patient record. Data conflicts resulting from the synchronization have to be solved automatically. Our project describes a solution for XML-based data replication and synchronization for mobile health applications.
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Affiliation(s)
- J Campana
- FZI Forschungszentrum Informatik Karlsruhe, Germany
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Bolz A, Clasbrummel B, Schmitz J, Sani S, Gmelin M, Wagner G, Schöchlin J. TELTRA- GESELLSCHAFT FÜR TELEMATISCHE TRAUMATOLOGIE. BIOMED ENG-BIOMED TE 2001. [DOI: 10.1515/bmte.2001.46.s1.538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sturm G, Susenbeth A, Ehrensvärd U, Gmelin M, Loeffler K. [The adaptation of the morphometric parameters of fat cell size for the purposes of animal science research. 2. Cellularity of subcutaneous adipose tissue of different swine breeds influenced by graduated feed levels and in relation to metabolic data and parameters of body fat degeneration]. Berl Munch Tierarztl Wochenschr 1990; 103:112-7. [PMID: 2331245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Measurements of morphological and biochemical parameters in subcutaneous adipose tissue as well as investigations of energy metabolism and fat deposition of 89 male castrated pigs were performed. Breeding lines of swine (German Landrace) had been selected through 8 generations for high ("E(+)-Line") and low ("E(-)-Line") levels of NADPH-generating dehydrogenases. A control group ("K.") without selection was closely paralleled. For 21 days the animals were kept under feeding experiments within 2 sectors of growing period (67 kg, 85 kg body mass), and biopsies of backfat were examined subsequently. The inner layer of subcutaneous adipose tissue showed constantly bigger fat cells than the outer layer. The fat cell size increased generally with fattening and body mass respectively. The cellularity of adipose tissue was dependent significantly on the percentage of the very small fat cells measured up to 30 microns diameter (= "PKF30"). The breeding lines differed slightly with respect to their cellularity: The inner layer showed the gradation E+ greater than K. greater than E- concerning fat cell volumes and fat cell surfaces respectively. The PKF30 correlated significantly with food energy level as well as with the respirationally examined protein retention, particularly in inner layers of younger animals. Relations to the fat deposition (examined respirationally or with the D2O-Method and after slaughter respectively) were recognized, not showing validity for all cases. The parameters of lipogenic activity tested by tissue slice preparations and homogenates respectively correlated negatively with average fat cell size.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- G Sturm
- Institut für Tiermedizin und Tierhygiene mit Tierklinik der Universität Hohenheim
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