The genetic legacy of the Yaghnobis: A witness of an ancient Eurasian ancestry in the historically reshuffled central Asian gene pool.

OBJECTIVES: The Yaghnobis are an ethno-linguistic minority historically settled along the Yaghnob River in the Upper-Zarafshan Valley in Tajikistan. They speak a language of Old Sogdian origin, which is the only present-day witness of the Lingua Franca used along the Silk Road in Late Antiquity. The aim of this study was to reconstruct the genetic history of this community in order to shed light on its isolation and genetic ancestry within the Euro-Asiatic context. MATERIALS AND METHODS: A total of 100 DNA samples were collected in the Yaghnob and Matcha Valleys during several expeditions and their mitochondrial, Y-chromosome and autosomal genome-wide variation were compared with that from a large set of modern and ancient Euro-Asiatic samples. RESULTS: Findings from uniparental markers highlighted the long-term isolation of the Yaghnobis. Mitochondrial DNA ancestry traced an ancient link with Middle Eastern populations, whereas Y-chromosome legacy showed more tight relationships with Central Asians. Admixture, outgroup-f3, and D-statistics computed on autosomal variation corroborated Y-chromosome evidence, pointing respectively to low Anatolian Neolithic and high Steppe ancestry proportions in Yaghnobis, and to their closer affinity with Tajiks than to Iranians. DISCUSSION: Although the Yaghnobis do not show evident signs of recent admixture, they could be considered a modern proxy for the source of gene flow for many Central Asian and Middle Eastern groups. Accordingly, they seem to retain a peculiar genomic ancestry probably ascribable to an ancient gene pool originally wide spread across a vast area and subsequently reshuffled by distinct demographic events occurred in Middle East and Central Asia.

Investigation Into the Pharmacist's Role in Breastfeeding Support in the "Roma B" Local Health Authority in Rome.

Background: Breastfeeding is the biological norm for feeding infants and a public health strategy with such a significant impact on the health of the population in the short, medium, and long terms that it should be considered a priority. A pharmacy can be a place for breastfeeding support, since it is open 24 hours a day and is easily accessible. Objective: The main objective of our fact-finding investigation into the breastfeeding support role of pharmacists in the "Roma B" Local Health Authority was to understand how often pharmacists came into contact with nursing mothers, and if pharmacists felt the need to have a greater knowledge of issues regarding breastfeeding. Methods: This survey was done by administering 144 questionnaires (to 1 pharmacist per pharmacy) with items about the support and the protection of breastfeeding and lactation, the perceived need for specific training courses, and openness to establishing virtuous network mechanisms with stakeholders who work in breastfeeding in that geographical area. Results: Our survey shows that mothers come to pharmacies for advice about various health problems. Although pharmacists had little knowledge about breastfeeding, they were interested in participating in a training course. Ninety percent of them declared their interest in collaborating with local breastfeeding stakeholders. Conclusions: The role of the pharmacist in the protection, promotion, and support of breastfeeding has become increasingly important, along with the awareness of being competent and ethical on issues about breastfeeding.