Neolithic dental calculi provide evidence for environmental proxies and consumption of wild edible fruits and herbs in central Apennines.

Looking for a biological fingerprint relative to new aspects of the relationship between humans and natural environment during prehistoric times is challenging. Although many issues still need to be addressed in terms of authentication and identification, microparticles hidden in ancient dental calculus can provide interesting information for bridging this gap of knowledge. Here, we show evidence about the role of edible plants for the early Neolithic individuals in the central Apennines of the Italian peninsula and relative cultural landscape. Dental calculi from human and animal specimens exhumed at Grotta Mora Cavorso (Lazio), one of the largest prehistoric burial deposits, have returned an archaeobotanical record made up of several types of palaeoecological proxies. The organic fraction of this matrix was investigated by a multidisciplinary approach, whose novelty consisted in the application of next generation sequencing to ancient plant DNA fragments, specifically codifying for maturase K barcode gene. Panicoideae and Triticeae starches, together with genetic indicators of Rosaceae fruits, figs, and Lamiaceae herbs, suggested subsistence practices most likely still based on wild plant resources. On the other hand, pollen, and non-pollen palynomorphs allowed us to outline a general vegetational framework dominated by woodland patches alternated with meadows, where semi-permanent settlements could have been established.

Ropivacaine versus levobupivacaine for minor breast surgery in outpatients: inversion of postoperative pain relief efficacy.

The number of ambulatory surgical procedures is growing and local anesthesia represents the technique of choice for outpatients undergoing minor surgery. The aim of this study was to verify whether differences exist in postoperative pain relief using equipotent doses of two long-acting local anesthetics, ropivacaine and levobupivacaine, in patients who underwent minor breast surgery. A series of 86 consecutive women (median age=55, range=39-75 years) with small (<2 cm in size) breast masses requiring surgical excision were prospectively enrolled in the study. Patients were randomly selected to receive 7.5 mg/ml ropivacaine (group A, 42 patients) or 5 mg/ml levobupivacaine (group B, 44 patient). For post-surgical measurement of pain intensity a visual analog scale (VAS) was used. The age of the patients (56.4±9.6 vs. 56.7±9.5 years; p=0.88) and operative time (38.4±4.3 vs. 39.8±5.0 min; p=0.16), did not differ significantly between the groups (A vs. B). Transient adverse effects were observed in 5 (11.9%) and 4 (9.1%) patients (p=0.49) of groups A and B, respectively. The pain VAS four (t4) and 24 (t24) hours from the end of surgery was significantly (p<0.05) different between the groups, but an inversion of pain relief efficacy and a crossing point of the two pain-time lines at the sixth hour was observed. In conclusion, ropivacaine results in more effective pain relief at time t4, while levobupivacaine should be the drug of choice when long-term postoperative analgesia is required.