A historical and palaeopathological perspective on cancer.

Cancer is often wrongly considered to be a modern disease in many popular medical venues. Cancers have been known to humanity since ancient times. In fact, its antiquity can be identified through the application of palaeopathological methodologies. The present perspective demonstrates by means of a historical and palaeopathological analysis how oncological manifestations were present long before the emergence of anatomically modern humans and addresses the epidemiological transition from ancient times to the contemporary world. The final section of the article examines breast cancer and its identification in ancient human remains.

Two surgical instruments.

The only instruments for opening the cranium considered in this chapter are drills, and in some cases facilitated with a special chisel called a lenticular. There were two kinds of trepan. The modiolus was the Latin name for a crown trepan which had a circular base with teeth which sawed a hole. Then there were the non-penetrating trepans which had a bit shaped to prevent unwanted penetration. They made small openings which could be joined by chisels to remove altogether larger areas of bone than were accessible to modioli. They were the favored instrument from the ancient world up to the Renaissance. At the beginning of the Renaissance, there was a move toward greater use of crown trepans and various methods were applied to stop them sinking too far inward. These included wings in the outer wall and changing the shape of the bit from cylindrical to conic. In time preferences returned to the cylindrical shape and larger diameters. There was also two instruments called lenticulars, the illustrations of which have been confused in the literature. It is now clear that the Roman instrument was shaped to cut the cranium and minimize the need for trepanation. The Renaissance instrument had a different shape and was used to smooth rough bone edges and excise spicules penetrating the meninges. They were simply two different instruments to which the same name was applied.

Renaissance-Europe-17th Century.

The authors of the texts described in this chapter will have had access to the anatomy of Vesalius; a marked step forward. However, there was no equivalent advance in physiology. Harvey's book on the circulation of the blood was published in 1628 but it took many years for its contents to be accepted as standard teaching. The century saw the development of instruments some of which look more like instruments a modern surgeon would recognize. The two major technical advances were the acceptance of a single-handed trephine and the design of crown trepans with a conical shape and blades extending up the sides. Moreover, the crown trepan had once again become the favored instrument for gaining access to the interior of the cranium. In terms of technique there was a worrying trend that surgeons could feel when they had penetrated the inner table of the skull without the need to probe. All the way back to Hippocrates, it had been customary to use probes to assess depth while trepanning. Thus, the abandonment of this safety measure if it was real, is cause for concern. However, it is not impossible that probing was continued and simply not mentioned as it was so obviously necessary as not to require comment. The lenticular illustrated remains of the triangular shape first illustrated by Vidius. It is important to note that it was not used to incise the skull but to smooth of rough edges and spicules.

Renaissance-Europe-16th century.

Realistic images became available for the first time. The first major figure was Berengario da Carpi (1460-1530). He made contributions to knowledge. He stated the dura was attached all over the interior of the cranium not just at the sutures. He also noted that deterioration following traumatic hematomas was speedier the deeper within the brain the bleed had occurred and he noticed that post-traumatic neurological deficits were contralateral. Moreover, he introduced new instruments of a practical design. Specifically, he launched trepanation using a brace and bit handle. This instrument required two hands and rotated the trepan in the same direction all the time. In addition, he illustrated a crown trepan in which the bits could be interchanged. He also developed an improved elevator. He also provided the first drawing of a lenticular. The next illustrations came from Vidus Vidius (1509-1569). The illustrations in his text were elegant and realistic but some of them were impractical or unusable. Ambroise Paré (1510-1590) was a major surgeon. He designed an improved brace and bit trepan with a collar to control penetration. He also introduced instruments for expanding a cranial opening by biting up the bone and for depressing the dura to enable material to escape more easily.

The meninges.

The dura was first described in ancient Egypt. Hippocrates insisted that it should be protected and not penetrated. Celsus proposed an association between clinical findings and meningeal damage. Galen proposed that the dura was attached only at the sutures, and he was the first to describe the pia in humans. In the Middle Ages, new interest in the management of meningeal injuries arose, with renewed interest in relating clinical changes to intracranial injuries. These associations were neither consistent nor accurate. The Renaissance brought little change. It was in the 18th century that it became clear that the indication for opening the cranium following trauma was to relieve pressure from hematomas. Moreover, the important clinical findings on which to base an indication for intervention were changes in the level of consciousness.

The pericranium.

The purpose of this chapter is to present how past surgeons have viewed the pericranium and how they have reacted to its appearances. In ancient times, the membrane was considered formed by the dura through the sutures and it retained a relationship with the dura via vessels in the sutures. It was considered advisable to strip it totally from any area to be examined for fissure fractures and also for any area to be trepanned, as pericranial injury was thought to lead to fever and inflammation. In the 18th century, a new idea arose that posttraumatic spontaneous separation of the pericranium from the bone was a reliable indicator of the development of intracranial suppuration. This idea was subsequently refuted. For over two millennia, the pericranium was considered to be an important membrane requiring the close attention of the surgeon. It is no longer required to receive more than minimal attention.

Renaissance-Europe-16th Century continued.

This chapter is limited to the text of Della Cruce, which contains the most comprehensive account of the instruments used in cranial surgery at the time. Of particular importance is Della Cruce's attitude to what he called non-perforating straight trepans, which in general he disliked. It may be noted that his text was the last to describe this sort of instrument. In the succeeding centuries, changes to penetrating instruments were all variations on the shape of different kinds of crown trepan. Like Berengario, Della Cruce described brace and bit trepans with interchangeable bits. Various methods were employed to prevent them penetrating too deeply.

Evolution of understanding.

From the time of Hippocrates to the early 19th century, knowledge advanced but that was an uneven process. Anatomy was basically defined by Galen and remained cast in stone until the early 16th century. Neuroanatomy was described by Galen but had little practical value, as brain surgery was not possible. The anatomy of the cranium was known and was largely correct. Care was taken to avoid the frontal air sinuses and the venous sinuses and the temporal region. The role of the brain in consciousness was not understood. It was considered the seat of the soul but there was a lack of understanding that damage to it could induce clinical symptoms such as stupor or paralysis. These were variously attributed to injuries to the meninges or the bone. This error was finally corrected in the 18th century when the brain was identified as responsible for much of the clinical disturbance following cranial trauma. All awareness that post traumatic neurological deficit was contralateral was ignored until the late 18th century, although several authors noted it. Likewise, the presence of CSF had to wait until the 18th century until it was recognized. Fissures were treated with trepanation, because of a perceived risk of infection developing between the bone and the dura. Depressed fracture fragments were elevated, replaced, or removed according to the details of the injury. Finally, for centuries surgeons blocked patients ears to reduce the sound of drilling, despite the fact that such a blocking would amplify the noise.

La alimentación de los enfermos en los hospitales de la edad moderna, el caso de Vitoria (Álava, España) / A alimentação dos doentes nos hospitais na era moderna, o caso de Vitoria (Álava, Espanha) / Feeding the sick in hospitals in the modern age, the case of Vitoria (Álava, Spain)

El conocimiento sobre alimentación en los hospitales de laedad moderna en España está sustentado en documentaciónde muy pocos centros, mayoritariamente de grandes urbes,siendo necesarias nuevas aportaciones para ampliar la evidenciaexistente. A tal objeto se ha analizado la documentación delhospital Santiago de Vitoria, un hospital y una ciudad másrepresentativos de la mediana peninsular.Se ha hallado un inequívoco enfoque económico de ladocumentación sobre alimentos y la consignación de suadquisición solo recoge gastos extraordinarios, mayoritariamentealimentos destinados a la botica (80% de los asientos). Ladieta basal solo nos es conocida por su descripción teórica,anotándose su gasto por número de raciones o su fracción.Se evidencia una supervisión triple en su preparación yadministración, así como una cuidada prescripción médicade los alimentos en las dietas individualizadas.En conclusión, los gastos no evidencian el consumo efectivo nitampoco representan la dieta real, pues la inmensa mayoría delos alimentos consignados estuvieron destinados a la botica yno a la alimentación de los enfermos. Debe preguntarse si losestudios precedentes, que utilizan también datos de gastos,no han hecho una mala interpretación de estos extrapolandoerróneamente una dieta magnífica cuando, en el caso vitoriano,tuvo una composición de clases populares.

Knowledge of hospital food in modern-age hospitals in Spainis based on documentation from very few centers, mostlyin large cities, and new contributions are needed to expandthe existing evidence. To this end, the documentation of theSantiago de Vitoria hospital has been analysed, a hospital nd a city more representative of the peninsular median.An unequivocal economic focus has been found in thedocumentation on foodstuffs, and the record of their acquisitiononly includes extraordinary expenses, mainly foodstuffsdestined for the apothecary's shop (80% of the entries). Thebasal diet is only known to us by its theoretical description,and its expenditure is recorded by number of portions ortheir fraction. There is evidence of triple supervision in itspreparation and administration, as well as careful medicalprescription of the food in the individualised diets.In conclusion, the expenditures do not show the actualconsumption, nor do they represent the real diet, since thevast majority of the food items recorded were destined for thepharmacy and not for the feeding of the sick. It must be askedwhether previous studies, which also use expenditure data,have not misinterpreted these data by wrongly extrapolatinga magnificent diet when, in the case of Vitoria, it was madeup of the working classes.(AU)

O conhecimento da alimentação hospitalar nos hospitais daIdade Moderna em Espanha baseia-se na documentação deum número muito reduzido de centros, principalmente nasgrandes cidades, e são necessárias novas contribuições paraampliar a evidência existente. Para o efeito, analisámos adocumentação do hospital de Santiago de Vitoria, um hospitale uma cidade mais representativos da mediana peninsular.Na documentação relativa aos géneros alimentícios, encontramosum enfoque económico inequívoco, sendo que o registoda sua aquisição apenas inclui despesas extraordinárias,sobretudo géneros destinados à botica (80% das entradas).A dieta basal só nos é conhecida pela sua descrição teórica,e a sua despesa é registada pelo número de porções oupela sua fração. Há indícios de uma tripla vigilância na suapreparação e administração, bem como de uma cuidadosaprescrição médica dos alimentos nas dietas individualizadas.Em conclusão, as despesas não mostram o consumo real nemrepresentam a dieta real, uma vez que a grande maioria dosalimentos registados se destinava à farmácia e não à alimentaçãodos doentes. É de perguntar se estudos anteriores, que tambémutilizam dados de despesas, não terão interpretado mal estesdados, extrapolando erradamente uma dieta magnífica quando,no caso de Vitória, era constituída pelas classes populares.(AU)

Elevated genetic risk for multiple sclerosis emerged in steppe pastoralist populations.

Multiple sclerosis (MS) is a neuro-inflammatory and neurodegenerative disease that is most prevalent in Northern Europe. Although it is known that inherited risk for MS is located within or in close proximity to immune-related genes, it is unknown when, where and how this genetic risk originated1. Here, by using a large ancient genome dataset from the Mesolithic period to the Bronze Age2, along with new Medieval and post-Medieval genomes, we show that the genetic risk for MS rose among pastoralists from the Pontic steppe and was brought into Europe by the Yamnaya-related migration approximately 5,000 years ago. We further show that these MS-associated immunogenetic variants underwent positive selection both within the steppe population and later in Europe, probably driven by pathogenic challenges coinciding with changes in diet, lifestyle and population density. This study highlights the critical importance of the Neolithic period and Bronze Age as determinants of modern immune responses and their subsequent effect on the risk of developing MS in a changing environment.

Redefining the treponemal history through pre-Columbian genomes from Brazil.

The origins of treponemal diseases have long remained unknown, especially considering the sudden onset of the first syphilis epidemic in the late 15th century in Europe and its hypothesized arrival from the Americas with Columbus' expeditions1,2. Recently, ancient DNA evidence has revealed various treponemal infections circulating in early modern Europe and colonial-era Mexico3-6. However, there has been to our knowledge no genomic evidence of treponematosis recovered from either the Americas or the Old World that can be reliably dated to the time before the first trans-Atlantic contacts. Here, we present treponemal genomes from nearly 2,000-year-old human remains from Brazil. We reconstruct four ancient genomes of a prehistoric treponemal pathogen, most closely related to the bejel-causing agent Treponema pallidum endemicum. Contradicting the modern day geographical niche of bejel in the arid regions of the world, the results call into question the previous palaeopathological characterization of treponeme subspecies and showcase their adaptive potential. A high-coverage genome is used to improve molecular clock date estimations, placing the divergence of modern T. pallidum subspecies firmly in pre-Columbian times. Overall, our study demonstrates the opportunities within archaeogenetics to uncover key events in pathogen evolution and emergence, paving the way to new hypotheses on the origin and spread of treponematoses.

Genetic continuity and change among the Indigenous peoples of California.

Before the colonial period, California harboured more language variation than all of Europe, and linguistic and archaeological analyses have led to many hypotheses to explain this diversity1. We report genome-wide data from 79 ancient individuals from California and 40 ancient individuals from Northern Mexico dating to 7,400-200 years before present (BP). Our analyses document long-term genetic continuity between people living on the Northern Channel Islands of California and the adjacent Santa Barbara mainland coast from 7,400 years BP to modern Chumash groups represented by individuals who lived around 200 years BP. The distinctive genetic lineages that characterize present-day and ancient people from Northwest Mexico increased in frequency in Southern and Central California by 5,200 years BP, providing evidence for northward migrations that are candidates for spreading Uto-Aztecan languages before the dispersal of maize agriculture from Mexico2-4. Individuals from Baja California share more alleles with the earliest individual from Central California in the dataset than with later individuals from Central California, potentially reflecting an earlier linguistic substrate, whose impact on local ancestry was diluted by later migrations from inland regions1,5. After 1,600 years BP, ancient individuals from the Channel Islands lived in communities with effective sizes similar to those in pre-agricultural Caribbean and Patagonia, and smaller than those on the California mainland and in sampled regions of Mexico.

Alimentos sin finalidad nutricional en la terapéutica médica hospitalaria de la edad moderna en el Hospital de Santiago de Vitoria (Álava, España) / Food without nutritional purpose in the medical therapeutics in the modern age at Hospital de Santiago in Vitoria (Alava, Spain)

Introducción: con ser importante, la alimentación en los hospitales medievales y modernos distó de la excelencia y abundancia que sugierenalgunos historiadores, probablemente por una incorrecta valoración de la documentación hospitalaria al considerar como destinado a la alimentación todo gasto en alimentos, cuando buena parte tuvo como destino la botica.Objetivo/método: identificar los alimentos utilizados para una finalidad terapéutica no nutricional durante la edad moderna en el Hospital deSantiago Apóstol de Vitoria (Álava, España), describir su sistema de consignación y revisar la bibliografía del periodo para facilitar estrategias devaloración documental a los investigadores.Resultados: entre 1592 y 1813 se identifican 42 grupos de alimentos adquiridos para finalidades terapéuticas no nutritivas. El sistema deanotación en los libros de gastos no es sistemático ni homogéneo sino muy variable y dependiente de quien efectuara el asiento. Se identifican27 términos para el reconocimiento de que un determinado alimento tuviera por destino la botica y no la cocina. Se escogen 14 textos sanitariosdel periodo como bibliografía clarificadora, encontrándose de mayor utilidad para los fines propuestos los manuales enfermeros del siglo XVII.Conclusiones: la variedad y cantidad de alimentos destinados a la botica evidencia el riesgo de confusión en los investigadores no familiarizadosal analizar las dietas hospitalarias desde los libros de contabilidad. La propuesta de términos y estrategias de discriminación del uso nutricionalo no nutricional de los alimentos adquiridos, junto a la recomendación bibliográfica, resulta indispensable para una adecuada valoración de lasdietas hospitalarias históricas. (AU)

Introduction: although important, food in medieval and modern hospitals was far from the excellence and abundance suggested by somehistorians, probably due to an incorrect assessment of hospital documentation, considering all food expenditure to be for food when much of itwas destined for the apothecary’s shop.Aim/method: to identify the foodstuffs used for non-nutritional therapeutic purposes during the modern age at Hospital de Santiago in Vitoria(Alava, Spain), to describe the system of consignment, and to review the bibliography of the period in order to facilitate documentary assessmentstrategies for researchers.Results: between 1592 and 1813, 42 groups of foodstuffs acquired for non-nutritional therapeutic purposes were identified. The system of annotation in the expenditure books is neither systematic nor homogeneous, but highly variable and dependent on who made the entry. Twenty-seventerms were identified for the recognition that a given foodstuff was intended for the apothecary’s shop and not the kitchen. Fourteen sanitarytexts of the period were chosen as clarifying bibliography, finding the 17th century nursing manuals most useful for the proposed purposes.Conclusions: the variety and quantity of foodstuffs destined for the apothecary’s shop shows the risk of confusion in unfamiliar researcherswhen analysing hospital diets from account books. A proposal of terms and strategies for discriminating the nutritional or non-nutritional use ofthe food acquired, together with bibliographical recommendations, is essential for an adequate assessment of historical hospital diets. (AU)

The Emergence and Effects of the First Anatomy Theatres in Western Europe / El Surgimiento y los Efectos de las Primeras Salas de Anatomía en Europa Occidental

SUMMARY: The spread of the idea that the human body should be learned from cadavers, especially under the leadership of Vesalius, and the strong support of this idea among surgeons and medical students of that period, led to the emergence of anatomy theatres, particularly in the rich centres of Western Europe. Anatomy theatres have become prestigious places that make contributions to financial income for the cities they are located in. They have contributed to the importance of universities with the students they attract. Anatomy has become a more visual and international science because of the spread of anatomical drawings in scientific medical books, the newly invented printing press making it easier to print more books and the increasing interest of the people of the period. Learning medicine has become easier with the spread of visual anatomy books and cadaver studies. Cadaver studies and anatomy theatres, which started to become widespread under the leadership of brave science warriors such as Vesalius, who lived in the Renaissance period, became the subject of the paintings of painters of the period such as Rembrandt under the name anatomy activities. It is beneficial and necessary for society to keep in memory what this period brought to the world of anatomy and the present with its historical processes.

La difusión de la idea de que el cuerpo humano se debe aprender a partir de cadáveres, especialmente bajo el liderazgo de Vesalius, y el fuerte apoyo de esta idea entre los cirujanos y estudiantes de medicina de ese período, condujo al surgimiento de las salas de anatomía, particularmente en los ricos centros de Europa Occidental. Las salas de anatomía se han convertido en lugares de prestigio que contribuyen a los ingresos económicos de las ciudades en las que están ubicados y han contribuido a la importancia de las universidades con los estudiantes que atraen. La anatomía se ha convertido en una ciencia más visual e internacional debido a la difusión de los dibujos anatómicos en los libros médicos científicos, la imprenta recién inventada que facilita la impresión de libros y el creciente interés de la gente de la época. Aprender medicina se ha vuelto más fácil con la difusión de libros de anatomía visual y estudios de cadáveres. Los estudios de cadáveres y las salas de anatomía, que comenzaron a generalizarse bajo el liderazgo de valientes guerreros de la ciencia como Vesalius, que vivió en el Renacimiento, se convirtieron en el tema de las pinturas de artistas de la época como Rembrandt bajo el nombre de actividades de anatomía. Es beneficioso y necesario que la sociedad guarde en la memoria lo que este período trajo al mundo de la anatomía y el presente con sus procesos históricos.

Skull Anatomy in "Saint Jerome in the Wilderness" by Leonardo da Vinci.

As a result of a detailed study of "Saint Jerome in the Wilderness", we found that Leonardo described the skull in this work in an original way. A portion of the skull's face is visible in St Jerome's chest and abdomen projection. This image shows the orbit, the frontal bone, the nasal aperture and the zygomatic process. In our opinion, Leonardo described the skull in the painting with his usual originality.

Entwined African and Asian genetic roots of medieval peoples of the Swahili coast.

The urban peoples of the Swahili coast traded across eastern Africa and the Indian Ocean and were among the first practitioners of Islam among sub-Saharan people1,2. The extent to which these early interactions between Africans and non-Africans were accompanied by genetic exchange remains unknown. Here we report ancient DNA data for 80 individuals from 6 medieval and early modern (AD 1250-1800) coastal towns and an inland town after AD 1650. More than half of the DNA of many of the individuals from coastal towns originates from primarily female ancestors from Africa, with a large proportion-and occasionally more than half-of the DNA coming from Asian ancestors. The Asian ancestry includes components associated with Persia and India, with 80-90% of the Asian DNA originating from Persian men. Peoples of African and Asian origins began to mix by about AD 1000, coinciding with the large-scale adoption of Islam. Before about AD 1500, the Southwest Asian ancestry was mainly Persian-related, consistent with the narrative of the Kilwa Chronicle, the oldest history told by people of the Swahili coast3. After this time, the sources of DNA became increasingly Arabian, consistent with evidence of growing interactions with southern Arabia4. Subsequent interactions with Asian and African people further changed the ancestry of present-day people of the Swahili coast in relation to the medieval individuals whose DNA we sequenced.