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Plath M, Plath K. [Medical examination: Preparation for ENT specialisation : Part 71]. HNO 2024; 72:283-290. [PMID: 38448664 DOI: 10.1007/s00106-024-01439-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2023] [Indexed: 03/08/2024]
Affiliation(s)
- M Plath
- Kopfklinik, Hals‑, Nasen- und Ohrenklinik, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland.
| | - K Plath
- HNO-Praxis Bensheim, Bensheim, Deutschland
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2
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Plath M, Plinkert PK. [Medical examination: Preparation for ENT specialisation : Part 66]. HNO 2023:10.1007/s00106-023-01297-8. [PMID: 37072504 DOI: 10.1007/s00106-023-01297-8] [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] [Accepted: 02/21/2023] [Indexed: 04/20/2023]
Affiliation(s)
- M Plath
- Universitätsklinik für Hals‑, Nasen- und Ohrenheilkunde, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland.
| | - P K Plinkert
- Universitätsklinik für Hals‑, Nasen- und Ohrenheilkunde, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland
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3
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Santi F, Petry AC, Plath M, Riesch R. Phenotypic differentiation in a heterogeneous environment: morphological and life‐history responses to ecological gradients in a livebearing fish. J Zool (1987) 2019. [DOI: 10.1111/jzo.12720] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- F. Santi
- School of Biological Sciences Royal Holloway University of London Egham UK
| | - A. C. Petry
- Instituto de Biodiversidade e Sustentatibilidade – NUPEM Universidade Federal do Rio de Janeiro – UFRJ Macaé Brazil
| | - M. Plath
- College of Animal Science and Technology Northwest A&F University Yangling China
| | - R. Riesch
- School of Biological Sciences Royal Holloway University of London Egham UK
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4
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Zaoui K, Thielen HM, Plath M, Baumann I, Plinkert PK, Federspil PA. Quality of life after nasal cancer resection - surgical versus prosthetic rehabilitation. Rhinology 2019; 56:400-406. [PMID: 30052694 DOI: 10.4193/rhin18.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Nose reconstruction following resection of nasal carcinomas is controversial. The objective of this study is to investigate the effect of surgical reconstruction versus prosthetic rehabilitation on patient quality of life (QOL). DESIGN This was a monocentric prospective study of patients diagnosed with nasal carcinoma from 2003 to 2013. QOL was evaluated using two organ-specific questionnaires (Rhinoplasty Outcome Evaluation [ROE] and the Functional Rhinoplasty Outcome Inventory-17 [FROI-17]) and a generic questionnaire, the Short-Form 36 Health Survey (SF-36). MATERIAL AND METHODS Sixty-four patients were included. Patients completed the ROE, FROI-17, and SF-36 questionnaires after nasal reconstruction. Questionnaires were completed by 62.8% of the 51 alive patients. RESULTS Recurrence-free survival (RFS) was 89.9%, disease-specific survival was 94.5%, and overall survival was 75.5% after five years according to the Kaplan-Meier method. Considering initial tumor stage, early stage patients had a significantly higher self-confidence score in FROI-17 subgroup analysis. In contrast, advanced stage patients showed a significantly higher score for social functioning in SF-36. Prosthetically fitted patients scored highly on the ROE questionnaire showing a high degree of aesthetic satisfaction. Surgically reconstructed patients showed a high degree of self-confidence on the FROI-17 questionnaire. However, the organ-specific ROE and FROI-17 scores were not significantly different between patients who received surgical reconstruction and prosthetic rehabilitation after oncological resection. When comparing the rehabilitation method as a function of tumor stage, there was significantly better score for physical functioning in early stage surgically reconstructed patients in the SF-36, but no significant differences in organ-specific QOL. CONCLUSION Surgical reconstruction and prosthetic rehabilitation after nasal cancer resection have the same effect on organ- and non-organ-specific QOL.
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Affiliation(s)
- K Zaoui
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Germany
| | - H M Thielen
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Germany
| | - M Plath
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Germany
| | - I Baumann
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Germany
| | - P K Plinkert
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Germany
| | - P A Federspil
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Germany
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5
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Schulz‐Mirbach T, Eifert C, Riesch R, Farnworth MS, Zimmer C, Bierbach D, Klaus S, Tobler M, Streit B, Indy JR, Arias‐Rodriguez L, Plath M. Toxic hydrogen sulphide shapes brain anatomy: a comparative study of sulphide‐adapted ecotypes in the
Poecilia mexicana
complex. J Zool (1987) 2016. [DOI: 10.1111/jzo.12366] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- T. Schulz‐Mirbach
- Department Biology II Ludwig‐Maximilians‐University Munich Planegg‐Martinsried Germany
| | - C. Eifert
- Ecology and Evolution J. W. Goethe University Frankfurt Frankfurt am Main Germany
| | - R. Riesch
- School of Biological Sciences Royal Holloway University of London Egham UK
| | - M. S. Farnworth
- Göttingen Center for Molecular Biosciences Georg‐August‐University Göttingen Göttingen Germany
| | - C. Zimmer
- Ecology and Evolution J. W. Goethe University Frankfurt Frankfurt am Main Germany
| | - D. Bierbach
- Department of Biology and Ecology of Fishes Leibniz‐Institute of Freshwater Ecology and Inland Fisheries Berlin Germany
| | - S. Klaus
- Ecology and Evolution J. W. Goethe University Frankfurt Frankfurt am Main Germany
| | - M. Tobler
- Division of Biology Kansas State University Manhattan KS USA
| | - B. Streit
- Ecology and Evolution J. W. Goethe University Frankfurt Frankfurt am Main Germany
| | - J. R. Indy
- División Académica de Ciencias Biológicas Universidad Juárez Autónoma de Tabasco (UJAT) Villahermosa Tabasco México
| | - L. Arias‐Rodriguez
- División Académica de Ciencias Biológicas Universidad Juárez Autónoma de Tabasco (UJAT) Villahermosa Tabasco México
| | - M. Plath
- College of Animal Science and Technology Northwest A&F University Yangling China
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6
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Wang YH, Zhang CL, Plath M, Fang XT, Lan XY, Zhou Y, Chen H. Global transcriptional profiling of longissimus thoracis muscle tissue in fetal and juvenile domestic goat using RNA sequencing. Anim Genet 2015; 46:655-65. [PMID: 26364974 DOI: 10.1111/age.12338] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2015] [Indexed: 01/05/2023]
Abstract
Domestic goats are important meat production animals; however, data from transcriptional profiling of skeletal muscle tissue in goat have thus far been scarce. We used comparative transcriptional profiling based on RNA sequencing of longissimus thoracis muscle tissue obtained from fetal goat muscle tissue (27 512 850 clean cDNA reads) and 6-month-old goat muscle tissue (27 582 908 reads) to identify genes that are differentially expressed, novel transcript units and alternative splicing events. Gene annotation revealed that 15 960 and 14 981 genes were expressed in the fetal and juvenile libraries respectively. We detected 6432 differentially expressed genes and, when considering GO terms, found 34, 27 and 55 terms to be significantly enriched in molecular function, cellular component and biological process categories respectively. Pathway analysis revealed that larger numbers of differentially expressed genes were enriched in fetal myogenesis or cell proliferation and differentiation-related pathways (such as Wnt), genes involved in the cell cycle and the Notch signaling pathway, and most of the differentially expressed genes involved in these pathways were downregulated in the juvenile goat library. These genes may be involved in various regulation mechanisms during muscle tissue differentiation between the two development stages examined herein. The identified novel transcript units, including both non-coding and coding RNA, as well as alternative splicing events increase the level of complexity of regulation mechanisms during muscle tissue formation and differentiation. Our study provides a comparative transcriptome analysis on goat muscle tissue, which will provide a valuable genomic resource for future studies investigating the molecular basis of skeletal muscle development.
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Affiliation(s)
- Y H Wang
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, 712100, China.,Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - C L Zhang
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - M Plath
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, 712100, China
| | - X T Fang
- Institute of Cellular and Molecular Biology, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China
| | - X Y Lan
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, 712100, China
| | - Y Zhou
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, 712100, China
| | - H Chen
- College of Animal Science and Technology, Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture, Yangling, Shaanxi, 712100, China
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7
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Ziege M, Brix M, Schulze M, Seidemann A, Straskraba S, Wenninger S, Streit B, Wronski T, Plath M. From multifamily residences to studio apartments: shifts in burrow structures of
E
uropean rabbits along a rural‐to‐urban gradient. J Zool (1987) 2015. [DOI: 10.1111/jzo.12207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- M. Ziege
- Department of Ecology and Evolution University of Frankfurt Frankfurt am Main Germany
| | - M. Brix
- Department of Ecology and Evolution University of Frankfurt Frankfurt am Main Germany
| | - M. Schulze
- Department of Ecology and Evolution University of Frankfurt Frankfurt am Main Germany
| | - A. Seidemann
- Jagdschule Frankfurt Wildtiermanagement Bechtolsheim Germany
| | - S. Straskraba
- Department of Ecology and Evolution University of Frankfurt Frankfurt am Main Germany
| | - S. Wenninger
- Department of Ecology and Evolution University of Frankfurt Frankfurt am Main Germany
| | - B. Streit
- Department of Ecology and Evolution University of Frankfurt Frankfurt am Main Germany
| | - T. Wronski
- College of Animal Science and Technology Northwest A&F University Yangling China
| | - M. Plath
- College of Animal Science and Technology Northwest A&F University Yangling China
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8
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Wronski T, Bariyanga JD, Apio A, Plath M. Interactions between wildlife, humans and cattle: activity patterns of a remnant population of impala on the degraded Mutara Rangelands, Rwanda. Rangel J 2015. [DOI: 10.1071/rj15025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Large- to medium-sized African ungulates are often studied in conservation areas, ignoring the fact that most African landscapes are nowadays heavily impacted by agricultural and pastoralist practices. The present study emphasises the wealth of information obtained from studying a remnant population of a medium-sized ungulate, the impala (Aepyceros melampus), on degraded rangelands in Rwanda. Compared with impala occurring under similar climatic conditions in Serengeti National Park in Tanzania, the study population showed a marked reduction in daytime activity, absence of a mid-day resting phase, and a slight increase in activity towards the late afternoon. This pattern was not directly correlated with daily variation in human activity. It is argued that hunting/poaching leads impala to seek shelter to such a degree that any daytime rhythmicity in activity patterns is lost and that increased afternoon activity reflects a shifted cost-benefit ratio of hiding versus foraging, as hungry individuals are more likely to take risks. Indeed, impala were more likely to encounter cattle herds and their herdsmen towards the afternoon. The study augments understanding of behavioural flexibility, potential for habituation and adaptation to human-induced habitat alterations in impala and highlights a possible function of rangelands as dispersal corridors for African wildlife populations.
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9
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Eifert C, Farnworth M, Schulz-Mirbach T, Riesch R, Bierbach D, Klaus S, Wurster A, Tobler M, Streit B, Indy JR, Arias-Rodriguez L, Plath M. Brain size variation in extremophile fish: local adaptation versus phenotypic plasticity. J Zool (1987) 2014. [DOI: 10.1111/jzo.12190] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- C. Eifert
- Department of Ecology and Evolution; J.W. Goethe University Frankfurt; Frankfurt am Main Germany
| | - M. Farnworth
- Department of Ecology and Evolution; J.W. Goethe University Frankfurt; Frankfurt am Main Germany
| | - T. Schulz-Mirbach
- Department Biology II; Ludwig-Maximilians-University; Planegg Germany
| | - R. Riesch
- Department of Animal and Plant Sciences; University of Sheffield; Sheffield UK
- School of Biological Sciences; Centre for Ecology, Evolution and Behaviour; Royal Holloway University of London; Egham Surrey UK
| | - D. Bierbach
- Department of Ecology and Evolution; J.W. Goethe University Frankfurt; Frankfurt am Main Germany
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Berlin Germany
| | - S. Klaus
- Department of Ecology and Evolution; J.W. Goethe University Frankfurt; Frankfurt am Main Germany
| | - A. Wurster
- Department of Ecology and Evolution; J.W. Goethe University Frankfurt; Frankfurt am Main Germany
| | - M. Tobler
- Department of Zoology; Oklahoma State University; Stillwater OK USA
| | - B. Streit
- Department of Ecology and Evolution; J.W. Goethe University Frankfurt; Frankfurt am Main Germany
| | - J. R. Indy
- División Académica de Ciencias Biológicas; Universidad Juárez Autónoma de Tabasco (UJAT); Villahermosa Tabasco México
| | - L. Arias-Rodriguez
- División Académica de Ciencias Biológicas; Universidad Juárez Autónoma de Tabasco (UJAT); Villahermosa Tabasco México
| | - M. Plath
- College of Animal Science and Technology; Northwest A&F University; Yangling China
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10
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Tobler M, Plath M, Riesch R, Schlupp I, Grasse A, Munimanda GK, Setzer C, Penn DJ, Moodley Y. Selection from parasites favours immunogenetic diversity but not divergence among locally adapted host populations. J Evol Biol 2014; 27:960-74. [PMID: 24725091 DOI: 10.1111/jeb.12370] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [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: 10/24/2013] [Accepted: 03/09/2014] [Indexed: 11/26/2022]
Abstract
The unprecedented polymorphism in the major histocompatibility complex (MHC) genes is thought to be maintained by balancing selection from parasites. However, do parasites also drive divergence at MHC loci between host populations, or do the effects of balancing selection maintain similarities among populations? We examined MHC variation in populations of the livebearing fish Poecilia mexicana and characterized their parasite communities. Poecilia mexicana populations in the Cueva del Azufre system are locally adapted to darkness and the presence of toxic hydrogen sulphide, representing highly divergent ecotypes or incipient species. Parasite communities differed significantly across populations, and populations with higher parasite loads had higher levels of diversity at class II MHC genes. However, despite different parasite communities, marked divergence in adaptive traits and in neutral genetic markers, we found MHC alleles to be remarkably similar among host populations. Our findings indicate that balancing selection from parasites maintains immunogenetic diversity of hosts, but this process does not promote MHC divergence in this system. On the contrary, we suggest that balancing selection on immunogenetic loci may outweigh divergent selection causing divergence, thereby hindering host divergence and speciation. Our findings support the hypothesis that balancing selection maintains MHC similarities among lineages during and after speciation (trans-species evolution).
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Affiliation(s)
- M Tobler
- Department of Zoology, Oklahoma State University, Stillwater, OK, USA
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11
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Schulz-Mirbach T, Götz A, Griesshaber E, Plath M, Schmahl W. Texture and nano-scale internal microstructure of otoliths in the Atlantic molly, Poecilia mexicana: A high-resolution EBSD study. Micron 2013; 51:60-9. [DOI: 10.1016/j.micron.2013.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 06/18/2013] [Accepted: 07/02/2013] [Indexed: 11/15/2022]
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Abstract
The present study investigated the spatiotemporal patterns in trophic resource use in a system of a gynogenetic poeciliid fish, the Amazon molly Poecilia formosa, and its sexual congeners the sailfin molly Poecilia latipinna and the Atlantic molly Poecilia mexicana using gut contents analysis. No statistically significant differences in trophic resource use were found between sexual and gynogenetic species, but gut contents varied significantly across sites and over time. In addition, variation in trophic morphology (i.e. gut length) was significant across sites but not species, and laboratory experiments indicated that gut length is phenotypically plastic. Overall, trophic differentiation between coexisting asexual and sexual Poecilia appears to be minimal, and it is unlikely that niche differentiation contributes to a stable coexistence of the two reproductive forms.
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Affiliation(s)
- K Scharnweber
- Department of Biology and Ecology of Fishes, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany.
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13
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Tobler M, Culumber ZW, Plath M, Winemiller KO, Rosenthal GG. An indigenous religious ritual selects for resistance to a toxicant in a livebearing fish. Biol Lett 2011; 7:229-32. [PMID: 20826470 DOI: 10.1098/rsbl.2010.0663] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Human-induced environmental change can affect the evolutionary trajectory of populations. In Mexico, indigenous Zoque people annually introduce barbasco, a fish toxicant, into the Cueva del Azufre to harvest fish during a religious ceremony. Here, we investigated tolerance to barbasco in fish from sites exposed and unexposed to the ritual. We found that barbasco tolerance increases with body size and differs between the sexes. Furthermore, fish from sites exposed to the ceremony had a significantly higher tolerance. Consequently, the annual ceremony may not only affect population structure and gene flow among habitat types, but the increased tolerance in exposed fish may indicate adaptation to human cultural practices in a natural population on a very small spatial scale.
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Affiliation(s)
- M Tobler
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX 77843, USA.
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14
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Tobler M, Schlupp I, Plath M. Costly interactions between the sexes: combined effects of male sexual harassment and female choice? Behav Ecol 2011. [DOI: 10.1093/beheco/arr044] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Riesch R, Plath M, Schlupp I. Toxic hydrogen sulphide and dark caves: pronounced male life-history divergence among locally adapted Poecilia mexicana (Poeciliidae). J Evol Biol 2010; 24:596-606. [PMID: 21159007 DOI: 10.1111/j.1420-9101.2010.02194.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chronic environmental stress is known to induce evolutionary change. Here, we assessed male life-history trait divergence in the neotropical fish Poecilia mexicana from a system that has been described to undergo incipient ecological speciation in adjacent, but reproductively isolated toxic/nontoxic and surface/cave habitats. Examining both field-caught and common garden-reared specimens, we investigated the extent of differentiation and plasticity of life-history strategies employed by male P. mexicana. We found strong site-specific life-history divergence in traits such as fat content, standard length and gonadosomatic index. The majority of site-specific life-history differences were also expressed under common garden-rearing conditions. We propose that apparent conservatism of male life histories is the result of other (genetically based) changes in physiology and behaviour between populations. Together with the results from previous studies, this is strong evidence for local adaptation as a result of ecologically based divergent selection.
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Affiliation(s)
- R Riesch
- Department of Zoology, University of Oklahoma, Norman, OK, USA.
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16
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Makowicz A, Plath M, Schlupp I. Using video playback to study the effect of an audience on male mating behavior in the Sailfin molly (Poecilia latipinna). Behav Processes 2010; 85:36-41. [DOI: 10.1016/j.beproc.2010.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Revised: 05/13/2010] [Accepted: 06/03/2010] [Indexed: 10/19/2022]
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17
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Apio A, Kabasa JD, Ketmaier V, Schröder C, Plath M, Tiedemann R. Female philopatry and male dispersal in a cryptic, bush‐dwelling antelope: a combined molecular and behavioural approach. J Zool (1987) 2010. [DOI: 10.1111/j.1469-7998.2009.00654.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. Apio
- Institute of Biochemistry & Biology, Unit of Evolutionary Biology/Systematic Zoology, University of Potsdam, Potsdam, Germany
- Department of Veterinary Physiological Sciences, Faculty of Veterinary Medicine, Makerere University, Kampala, Uganda
| | - J. D. Kabasa
- Department of Veterinary Physiological Sciences, Faculty of Veterinary Medicine, Makerere University, Kampala, Uganda
| | - V. Ketmaier
- Institute of Biochemistry & Biology, Unit of Evolutionary Biology/Systematic Zoology, University of Potsdam, Potsdam, Germany
| | - C. Schröder
- Institute of Biochemistry & Biology, Unit of Evolutionary Biology/Systematic Zoology, University of Potsdam, Potsdam, Germany
| | - M. Plath
- Institute of Biochemistry & Biology, Unit of Evolutionary Biology/Systematic Zoology, University of Potsdam, Potsdam, Germany
| | - R. Tiedemann
- Institute of Biochemistry & Biology, Unit of Evolutionary Biology/Systematic Zoology, University of Potsdam, Potsdam, Germany
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18
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Wronski T, Plath M. Characterization of the spatial distribution of latrines in reintroduced mountain gazelles: do latrines demarcate female group home ranges? J Zool (1987) 2010. [DOI: 10.1111/j.1469-7998.2009.00643.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tobler M, Riesch R, Tobler CM, Schulz-Mirbach T, Plath M. Natural and sexual selection against immigrants maintains differentiation among micro-allopatric populations. J Evol Biol 2009; 22:2298-304. [PMID: 19807829 DOI: 10.1111/j.1420-9101.2009.01844.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Local adaptation to divergent environmental conditions can promote population genetic differentiation even in the absence of geographic barriers and hence lead to speciation. But what mechanisms contribute to reproductive isolation among diverging populations? We tested for natural and sexual selection against immigrants in a fish species inhabiting (and adapting to) nonsulphidic surface habitats, sulphidic surface habitats and a sulphidic cave. Gene flow is strong among sample sites situated within the same habitat type, but low among divergent habitat types. Our results indicate that females of both sulphidic populations discriminate against immigrant males during mate choice. Furthermore, using reciprocal translocation experiments, we document natural selection against migrants between nonsulphidic and sulphidic habitats, whereas migrants between sulphidic cave and surface habitats did not exhibit increased mortality within the same time period. Consequently, both natural and sexual selection may contribute to isolation among parapatric populations, and selection against immigrants may be a powerful mechanism facilitating speciation among locally adapted populations even over very small spatial distances.
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Affiliation(s)
- M Tobler
- Department of Biology and Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX 77843, USA
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20
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Plath M, Makowicz AM, Schlupp I, Tobler M. Sexual harassment in live-bearing fishes (Poeciliidae): comparing courting and noncourting species. Behav Ecol 2007. [DOI: 10.1093/beheco/arm030] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
Male mate choice is critical for understanding the evolution and maintenance of sexual/asexual mating complexes involving sperm-dependent, gynogenetic species. Amazon mollies (Poecilia formosa) require sperm to trigger embryogenesis, but the males (e.g. Poecilia mexicana) do not contribute genes. Males benefit from mating with Amazon mollies, because such matings make males more attractive to conspecific females, but they might control the cost of such matings by providing less sperm to Amazon mollies. We examined this at the behavioural and sperm levels. P. mexicana males preferred to mate with, and transferred more sperm to conspecific females. However, if males mated with P. formosa, sperm was readily transferred. This underscores the importance of male choice in this system.
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Affiliation(s)
- I Schlupp
- Biozentrum Grindel, Martin-Luther-King Platz 3, Universität Hamburg, Hamburg, Germany.
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Plath M, Hauswaldt JS, Moll K, Tobler M, García De León FJ, Schlupp I, Tiedemann R. Local adaptation and pronounced genetic differentiation in an extremophile fish, Poecilia mexicana, inhabiting a Mexican cave with toxic hydrogen sulphide. Mol Ecol 2006; 16:967-76. [PMID: 17305854 DOI: 10.1111/j.1365-294x.2006.03212.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We investigated genetic differentiation and migration patterns in a small livebearing fish, Poecilia mexicana, inhabiting a sulfidic Mexican limestone cave (Cueva del Azufre). We examined fish from three different cave chambers, the sulfidic surface creek draining the cave (El Azufre) and a nearby surface creek without the toxic hydrogen sulphide (Arroyo Cristal). Using microsatellite analysis of 10 unlinked loci, we found pronounced genetic differentiation among the three major habitats: Arroyo Cristal, El Azufre and the cave. Genetic differentiation was also found within the cave between different pools. An estimation of first-generation migrants suggests that (i) migration is unidirectional, out of the cave, and (ii) migration among different cave chambers occurs to some extent. We investigated if the pattern of genetic differentiation is also reflected in a morphological trait, eye size. Relatively large eyes were found in surface habitats, small eyes in the anterior cave chambers, and the smallest eyes were detected in the innermost cave chamber (XIII). This pattern shows some congruence with a previously proposed morphocline in eye size. However, our data do not support the proposed mechanism for this morphocline, namely that it would be maintained by migration from both directions into the middle cave chambers. This would have led to an increased variance in eye size in the middle cave chambers, which we did not find. Restricted gene flow between the cave and the surface can be explained by local adaptations to extreme environmental conditions, namely H2S and absence of light. Within the cave system, habitat properties are patchy, and genetic differentiation between cave chambers despite migration could indicate local adaptation at an even smaller scale.
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Affiliation(s)
- M Plath
- Unit of Evolutionary Biology/Systematic Zoology, Institute of Biochemistry and Biology, University of Potsdam, Germany.
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23
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Wronski T, Apio A, Plath M. Activity patterns of bushbuck (Tragelaphus scriptus) in Queen Elizabeth National Park. Behav Processes 2006; 73:333-41. [DOI: 10.1016/j.beproc.2006.08.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2006] [Revised: 06/05/2006] [Accepted: 08/08/2006] [Indexed: 11/15/2022]
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24
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Apio A, Plath M, Wronski T. Patterns of gastrointestinal parasitic infections in the bushbuck Tragelaphus scriptus from the Queen Elizabeth National Park, Uganda. J Helminthol 2006; 80:213-8. [PMID: 16923262] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Seasonal, host sex and age-related variations in helminth egg and coccidian oocyst counts were investigated in a naturally infected wild bushbuck (Tragelaphus scriptus) population in Queen Elizabeth National Park, western Uganda from April 2000 to February 2002. The prevalence and mean intensity quantified as the number of eggs and oocysts per gram of faeces were taken as a measure of parasite burdens. Host sex and age-related differences in prevalence values were not found but the overall prevalence of Eimeria sp. was significantly higher during the rainy season, and peak counts were recorded either during or soon after a peak rainfall. A similar trend was observed for Moniezia spp., although the results were marginally not significant. There were also no significant differences in mean intensity values, relative to host sex, age or season.
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Affiliation(s)
- A Apio
- Department of Zoology, University of Oklahoma, 730 Van Vleet Oval, Norman, OK 73019, USA.
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25
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Affiliation(s)
- T. Wronski
- Biozentrum Grindel und Zoologisches Museum, Universität Hamburg, Hamburg, Germany
| | - A. Apio
- Mbarara University of Science and Technology, Mbarara, Uganda
| | - J. Baranga
- Mbarara University of Science and Technology, Mbarara, Uganda
| | - M. Plath
- Unit of Evolutionary Biology and Systematic Zoology, Institute for Biochemistry and Biology, University of Potsdam, Potsdam, Germany
- Department of Zoology, University of Oklahoma, Norman, OK, USA
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26
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Ahlemeyer B, Bauerbach E, Plath M, Steuber M, Heers C, Tegtmeier F, Krieglstein J. Retinoic acid reduces apoptosis and oxidative stress by preservation of SOD protein level. Free Radic Biol Med 2001; 30:1067-77. [PMID: 11369496 DOI: 10.1016/s0891-5849(01)00495-6] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Retinoic acid (RA) has already been shown to exert antiapoptotic and antioxidative activity in various cells. In this study, we determined the effect of RA on the mRNA and protein levels of the Cu-,Zn-superoxide dismutase (SOD-1) and Mn-superoxide dismutase (SOD-2) during staurosporine-induced apoptosis in primary cultures from neonatal rat hippocampus. Exposure to staurosporine (300 nM, 24 h) increased the percentage of apoptotic neurons to 62% compared with 18% in controls. We determined an increase in the reactive oxygen species (ROS) content from 4 up to 48 h after the induction of the injury. Treatment with staurosporine did not significantly change the mRNA levels of SOD-1 and SOD-2. However, the SOD-1 and SOD-2 protein levels markedly decreased 24 and 48 h after the addition of staurosporine. Compared with staurosporine-exposed controls, RA (10 nM)-treated cultures showed a significant increase in neuronal survival, a reduced neuronal ROS content, and enhanced protein levels of SOD-1 and SOD-2 24 and 48 h after the start of the exposure to staurosporine. The results suggest that RA reduced staurosporine-induced oxidative stress and apoptosis by preventing the decrease in the protein levels of SOD-1 and SOD-2, and thus supported the antioxidant defense system.
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Affiliation(s)
- B Ahlemeyer
- Institut für Pharmakologie und Toxikologie, Fachbereich Pharmazie der Philipps-Universität Marburg, Marburg, Germany.
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27
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Renze J, Plath M, Ducho C, Balzarini J, De Clercq E, Meier C. Benzyl-functionalized cycloSal-d4T monophosphates. Nucleosides Nucleotides Nucleic Acids 2001; 20:931-4. [PMID: 11563147 DOI: 10.1081/ncn-100002461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Synthetic routes to benzyl-functionalized cycloSal-d4T monophosphates (7CH2X-cycloSal-d4TMP) have been developed. Their hydrolytic behavior in basic aqueous solution (pH = 7.3) was studied and their hydrolysis half-lives were determined. It turned out that two different degradation pathways are leading to different products: beside the formation of the expected d4TMP and a styrene type derivative, a phenyl-d4T-phosphodiester was obtained as well. The product distribution was specified.
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Affiliation(s)
- J Renze
- Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany
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28
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Eisinger M, Plath M, Jung K, Leitzmann C. Nutrient intake of endurance runners with ovo-lacto-vegetarian diet and regular western diet. Z Ernahrungswiss 1994; 33:217-29. [PMID: 7810180 DOI: 10.1007/bf01610787] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
During an endurance run (1,000 km in 20 days) it was investigated whether an ovo-lacto-vegetarian diet (OLVD) could cover the nutritional requirements of endurance athletes. A regular western diet (RWD) was used as reference. Both diets were offered with an energy content of 4,500 kcal per day and an energy percentage of carbohydrate:fat:protein of 60:30:10. The runners were divided into two dietary groups according to their usual dietary habits. The results of the 55 participants who completed the race show that runners from both groups had the same intake of energy, carbohydrate, fat and protein. Runners of the OLVD group consumed more dietary fiber and polyunsaturated fatty acids as well as less cholesterol. With the exception of sodium chloride and cobalamin, the intake of the calculated minerals and vitamins was higher in the OLVD and exceeded the official recommendations. This study shows that an OLVD with a high nutrient density is adequate to cover the nutritional requirements of endurance-athletes. The intake and absorption of iron should be monitored closely in all diet groups.
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Affiliation(s)
- M Eisinger
- Institute of Nutrition, University of Giessen
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29
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Raschka C, Plath M. [Body fat compartment and its relationship to food intake and clinical chemical parameters during extreme endurance performance]. Schweiz Z Sportmed 1992; 40:13-25. [PMID: 1561538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The purpose of this study was to examine the changes of the fat compartment and its relations to the corresponding blood chemistry and nutritional parameters of 55 participants of an ultra long distance run of 1000 km which consisted of 20 daily runs of 50 km. During the whole event the weight showed a falling tendency, significantly paralleling the cholesterol levels. In the middle of the run the values did not change any longer. The fat mass and all skinfolds and circumferences showed a continuously falling tendency. Only the thigh-skinfold initially grew and came down from the 4th day on. The serum blood concentrations of cholesterol and triglycerides of both sexes were decreased until the 6th and 8th day. Then a distinct increase was observed, but the initial values were not restored. The average daily energy intake of the men (women) was 4260 (3033) kcal/d, the average nutrient intake being 602.7 (431.5) g carbohydrates/d, 146.5 (103.3) g fat/d, 53.1 (38.4) g saturated fatty acids/d, 43.1 (31.3) g monounsaturated fatty acids/d, 25.3 (17.2) g polyunsaturated fatty acids/d and 382.8 (279.1) mg cholesterol/d. The correlations between the cumulative fat and food-supplies on one hand and the decrease of the anthropometric measurements of fatness on the other are negative, hence body fat mass followed closely total energy and fat intake.
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30
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Raschka C, Plath M, Cerull R, Bernhard W, Jung K, Leitzmann C. [The body muscle compartment and its relationship to food absorption and blood chemistry during an extreme endurance performance]. Z Ernahrungswiss 1991; 30:276-88. [PMID: 1788995 DOI: 10.1007/bf01651957] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The purpose of the study was to examine the changes of the muscle's fat-free compartment and its relation to the corresponding biochemical and nutritional parameters of 42 men and 13 women, the participants of an ultra long-distance run of 1000 km (20 days of daily running 50 km). The muscle-fractions initially increased, decreased in the middle phase, and remained stable for the rest of the run. Significant changes of the fat-free weight were registered from the 11th day on, the LBM decreasing until the middle of the distance; then the lean body mass enlarged. All the muscle-circumferences were reduced with the exception of the thigh, which grew, paralleling the CK/CKMB-concentrations, this phenomenon being due to the high mechanical stress of the lower extremities. The biochemical parameters exhibit a strain-related reaction of adaptation within the initial 6 days, the hormones and protein-concentration increasing in the beginning and falling from the third day on, uric acid and CK/CKMB-activity decreasing from the 6th day on. The consecutive parallel reduction of both uric acid, urea, and muscle measurements might be seen as a special endurance-related clearance-mechanism of potential toxicants. The negative relationship between the changes of muscle measurements and the cumulative protein intake and the catabolic constellation of the clinical-chemical values might suggest that the absolute protein intake of 1.7 g/kg body mass should be increased in order to diminish the loss of musculature during an ultra-long distance run.
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Affiliation(s)
- C Raschka
- Institut für Anthropologie, Universität Mainz
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31
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Uhlemann E, Plath M. Derivate von Salicylketonen. VI. Reaktionen von Metallchelaten der Schiffschen Basen aus o-Aminoarylketonen und 1,2-Diaminen. Z Anorg Allg Chem 1973. [DOI: 10.1002/zaac.19734020305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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