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1.
PLoS One ; 17(7): e0268968, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35830447

RESUMEN

The present study deals with new material of carnivorans (Mustelidae, Mephitidae, Ailuridae, Potamotheriinae and Viverridae) from the basal Tortonian (Late Miocene, late Astaracian) hominid-bearing locality of Hammerschmiede (Bavaria, Germany). The small carnivoran fauna includes 20 species belonging to nine different subfamilies (Guloninae, Lutrinae, Mellivorinae, Potamotheriinae, Leptarctinae, Mephitinae, Simocyoninae, Genettinae and Viverrinae). The identified forms include: "Martes" sansaniensis, "Martes" cf. munki, "Martes" sp., Circamustela hartmanni n. sp., Laphyctis mustelinus, Guloninae indet., Eomellivora moralesi, Vishnuonyx neptuni, Paralutra jaegeri, Lartetictis cf. dubia, Trocharion albanense, Palaeomeles pachecoi, Proputorius sansaniensis, Proputorius pusillus, Alopecocyon goeriachensis, Simocyoninae indet., Potamotherium sp., Semigenetta sansaniensis, Semigenetta grandis and Viverrictis modica. The new species Circamustela hartmanni n. sp. is differentiated from the other members of the genus by its small size and the morphology of its dental cusps in the upper and lower carnassials. This is one of the highest reported taxonomic diversities for fossil small carnivorans in the Miocene of Europe, including also first and last occurrences for several genera and species. Additionally, the assemblage comprises some rare taxa such as Palaeomeles pachecoi and Eomellivora moralesi. An ecomorphological comparison of the discovered taxa reveals possible cases of competition and niche partitioning.


Asunto(s)
Biodiversidad , Carnívoros , Animales , Alemania
2.
PLoS One ; 15(5): e0232179, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32374733

RESUMEN

We report fossils of the darter Anhinga pannonica Lambrecht, 1916 from two late Miocene (Tortonian, 11.62 and 11.44 Ma) avifaunas in Southern Germany. The material from the hominid locality Hammerschmiede near Pforzen represents the most comprehensive record of this species and includes most major postcranial elements except for the tarsometatarsus. We furthermore show that the putative cormorant Phalacrocorax brunhuberi (von Ammon, 1918) from the middle Miocene of Regensburg-Dechbetten is another, previously misclassified, record of A. pannonica, and this may also be true for early Miocene fossils described as P. intermedius Milne-Edwards, 1867. A. pannonica was distinctly larger than extant darters and reached the size of A. grandis from the late Miocene of North America. We detail that only fossils from the Miocene of Europe and Africa can be referred to A. pannonica, whereas putative records from Asia fall within the size range of extant darters. A. pannonica appears to have been a long-living species (16 to 6 Ma) with an extensive distribution from the equator to the northern mid-latitudes. The extinction of large-sized darters in Europe is likely to have been due to climatic cooling in the late Neogene, but the reasons for their disappearance in Africa and South America remain elusive.


Asunto(s)
Aves/anatomía & histología , Tamaño Corporal , Fenómenos Geológicos , Animales , Evolución Biológica , Fósiles , Alemania
3.
Nature ; 575(7783): 489-493, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31695194

RESUMEN

Many ideas have been proposed to explain the origin of bipedalism in hominins and suspension in great apes (hominids); however, fossil evidence has been lacking. It has been suggested that bipedalism in hominins evolved from an ancestor that was a palmigrade quadruped (which would have moved similarly to living monkeys), or from a more suspensory quadruped (most similar to extant chimpanzees)1. Here we describe the fossil ape Danuvius guggenmosi (from the Allgäu region of Bavaria) for which complete limb bones are preserved, which provides evidence of a newly identified form of positional behaviour-extended limb clambering. The 11.62-million-year-old Danuvius is a great ape that is dentally most similar to Dryopithecus and other European late Miocene apes. With a broad thorax, long lumbar spine and extended hips and knees, as in bipeds, and elongated and fully extended forelimbs, as in all apes (hominoids), Danuvius combines the adaptations of bipeds and suspensory apes, and provides a model for the common ancestor of great apes and humans.


Asunto(s)
Fósiles , Hominidae/clasificación , Hominidae/fisiología , Locomoción , Filogenia , Posición de Pie , Animales , Extremidades/anatomía & histología , Femenino , Hominidae/anatomía & histología , Humanos , Masculino , Tibia/anatomía & histología , Cúbito/anatomía & histología
4.
Zootaxa ; 4243(1): 153-164, 2017 Mar 13.
Artículo en Inglés | MEDLINE | ID: mdl-28610176

RESUMEN

Two new species of fossil dragonflies from the Middle Miocene fossil site Schaßbach (Carinthia, Austria) are described. The presence of Gomphaeschna carinthiae sp. nov. and Ictinogomphus hassleri sp. nov. in the fossil record of Central Europe confirms the scenario of a more widespread distribution of the represented genera in the Miocene in contrast to their Recent distribution.


Asunto(s)
Fósiles , Odonata , Animales , Austria , Europa (Continente)
5.
Oncologist ; 16(5): 543-53, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21490127

RESUMEN

The multitargeted tyrosine-kinase inhibitor sunitinib has emerged as one of the standards of care for good- and intermediate-risk metastatic renal cell carcinoma. Although generally associated with acceptable toxicity, sunitinib exhibits a novel and distinct toxicity profile that requires monitoring and management. Fatigue, diarrhea, anorexia, oral changes, hand-foot syndrome and other skin toxicity, thyroid dysfunction, myelotoxicity, and hypertension seem to be the most common and clinically relevant toxicities of sunitinib. Drug dosing and treatment duration are correlated with response to treatment and survival. Treatment recommendations for hypertension have been published but, currently, no standard guidelines exist for the management of noncardiovascular side effects. To discuss the optimal management of noncardiovascular side effects, an international, interdisciplinary panel of experts gathered in November 2009. Existing literature on incidence, severity, and underlying mechanisms of side effects as well as on potential treatment options were carefully reviewed and discussed. On the basis of these proceedings and the thorough review of the existing literature, recommendations were made for the monitoring, prevention, and treatment of the most common noncardiovascular side effects and are summarized in this review. The proactive assessment and consistent and timely management of sunitinib-related side effects are critical to ensure optimal treatment benefit by allowing appropriate drug dosing and prolonged treatment periods.


Asunto(s)
Carcinoma de Células Renales/tratamiento farmacológico , Indoles/efectos adversos , Neoplasias Renales/tratamiento farmacológico , Guías de Práctica Clínica como Asunto , Inhibidores de Proteínas Quinasas/efectos adversos , Pirroles/efectos adversos , Astenia/inducido químicamente , Astenia/terapia , Carcinoma de Células Renales/secundario , Diarrea/inducido químicamente , Diarrea/terapia , Relación Dosis-Respuesta a Droga , Eritema/inducido químicamente , Eritema/terapia , Exantema/inducido químicamente , Exantema/terapia , Fatiga/inducido químicamente , Fatiga/terapia , Humanos , Hipotiroidismo/inducido químicamente , Hipotiroidismo/terapia , Indoles/administración & dosificación , Indoles/uso terapéutico , Neoplasias Renales/patología , Inhibidores de Proteínas Quinasas/administración & dosificación , Inhibidores de Proteínas Quinasas/uso terapéutico , Pirroles/administración & dosificación , Pirroles/uso terapéutico , Nivel de Atención , Sunitinib
6.
Cell Biol Int ; 26(9): 783-9, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-12377210

RESUMEN

The dynamic state of post-translational acetylation of eukaryotic histones is maintained by histone acetyltransferases (HATs) and histone deacetylases (HDACs). HATs and HDACs have been shown to be components of various regulatory protein complexes in the cell. Their enzymatic activities, intracellular localization and substrate specificities are regulated in a complex, cell cycle related manner. In the myxomycete Physarum polycephalum multiple HATs and HDACs can be distinguished in biochemical terms and they exhibit dynamic activity patterns depending on the cell cycle stage. Here we report on the cloning of the first P. polycephalum HDAC (PpHDAC1) related to the S. cerevisiae Rpd3 protein. The expression pattern of PpHDAC1 mRNA was analysed at different time points of the cell cycle and found to be largely constant. Treatment of macroplasmodia with the HDAC inhibitor trichostatin A at several cell cycle stages resulted in a significant delay in entry into mitosis of treated versus untreated plasmodia. No effect of TSA treatment could be observed on PpHDAC1 expression itself.


Asunto(s)
Histona Desacetilasas/genética , Physarum polycephalum/enzimología , Proteínas Protozoarias/genética , Animales , Ciclo Celular/fisiología , Regulación Enzimológica de la Expresión Génica , Regulación Fúngica de la Expresión Génica , Histonas/genética , Datos de Secuencia Molecular , Physarum polycephalum/citología , Homología de Secuencia de Aminoácido
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