Settlement dynamics, subsistence economies and climate change during the late Holocene at Nunura Bay (Sechura Desert, Peru): A multiproxy approach.

Long considered on the margins, far from the major cultural traditions, the Sechura Desert is situated at the crossroads between the cultures of southern Ecuador and those of the northern Peruvian coast and preserves a large number of varied archaeological sites. Despite this evidence, little is known about the societies that inhabited this region during the Holocene. Exposed to natural hazards, including El Niño events, and to major climatic changes, they were able to adapt and exploit the scarce resources that this extreme environment offered them. Because of this rich history, we have been conducting archaeological research in this region since 2012 in order to clarify the dynamics of human occupation and their links with climate oscillations and environmental changes. This paper present the results of a multidisciplinary study of Huaca Grande, a mound located on Nunura Bay, 300 m from the Pacific Ocean. The nature of the human occupations at Huaca Grande was varied, and several adjustments occurred over time. The subsistence economy was based mainly on local marine resources and a continual use of terrestrial vegetal resources. However, a major change occurred in the more recent occupations, with the apparition of non-local resources (maize and cotton) indicating that Huaca Grande was connected to trade networks. The results show two main phases of occupation separated by a long abandonment (mid-5th century CE to mid-7th century CE and mid-13th century to mid-15th century CE). The occupation of the site appears to have been influenced by changes in the local climate and by extreme El Niño events. Our results highlight the great adaptability of these human groups over the span of a millennium and their capacity to react to the climatic changes and hazards that characterise this region.

[Peutz-Jeghers syndrome and colon adenocarcinoma]. / Síndrome de Peutz-Jeghers y adenocarcinoma de colon.

The Peutz-Jeghers syndrome is an autosomal dominant disorder characterized by the presence of hamartomatous polyps and characteristic mucocutaneous pigmentations. It is a rare syndrome and its associated to high risk for both gastrointestinal and non-gastrointestinal malignancies. The case of a patient, 32 years old, with symptoms of abdominal pain and rectal bleeding is reported. The upper gastric endoscopy and colonoscopy showed hamartomatous polyps and a tumor in the colon. Reported as a tubular polyp with severe dysplasia, the patient underwent surgical treatment. The final anatomopathologic diagnosis was colon adenocarcinoma.

Síndrome de Peutz-Jeghers y adenocarcinoma de colon / Syndrome of Peutz-Jeghers and adenocarcinoma of colon

El síndrome de Peutz-Jeghers es un desorden autosómico dominante, caracterizado por la presencia de pólipos hamartomatosos intestinales y pigmentaciones mucocutáneas características. Es un síndrome raro y se halla asociado a un alto riesgo de malignidad gastrointestinal y no gastrointestinal. Presentamos el caso de una paciente de 32 años con historia de dolor abdominal y sangrado rectal. La endoscopia digestiva alta y colonoscopia revelaron pólipos hamartomatosos y una tumoración en el colon, informada como pólipo tubular con displasia severa, por lo que fue indicado el tratamiento quirúrgico. El diagnóstico anátomo-patológico final fue un adenocarcinoma de colon.

The Peutz-Jeghers syndrome is an autosomal dominant disorder characterized by the presence of hamartomatous polyps and characteristic mucocutaneous pigmentations. It is a rare syndromeand its associated to high risk for both gastrointestinal and non-gastrointestinal malignancies. The case of a patient, 32 years old, with symptoms of abdominal pain and rectal bleeding is reported.The upper gastric endoscopy and colonoscopy showed hamartomatous polyps and a tumor in the colon. Reported as a tubular polyp with severe dysplasia, the patient underwent surgical treatment. The final anatomopathologic diagnosis was colon adenocarcinoma.