Biostratigraphy and paleoenvironmental interpretation of Middle Eocene sequences from Darende-Balaban Basin (Eastern Anatolia, Turkey)

The Middle Eocene sequence in the Darende-Balaban Basin (Eastern Turkey) characterized by shallow and deep marine benthic and planktonic foraminiferal assemblages. Nummulites and other benthic foraminifers are common in its lower part (mainly in the conglomerates and sandstones) while the planktonic foraminiferal assemblages are abundant in middle and upper parts (generally fine-grained sediments). Acarinina bulbrooki Zone is identified within Middle Eocene strata in the study area. This biozone correlated with other Mediterranean, southern mid- to high-latitude successions where some similar species are recorded. Paleontological and sedimentological data presented in this study suggest that the Middle Eocene sequences are dominated by siliciclastic and carbonate sediments that were deposited in various environments ranging from very shallow (Korgantepe, Asartepe and Darende Formations) to deep marine (Yenice Formation) ones

Relationship between calcium metabolism and blood pressure

WCO, IOF, ESCE

Effects of zoledronic acid on healing of mandibular fractures: An experimental study in rabbits

PubMedID: 21256644Purpose: The purpose of the present study was to evaluate the effects of systemically administered zoledronic acid (ZA) on mandibular fracture healing in a rabbit model using radiodensitometric, biomechanical, histologic, and histomorphometric methods. Materials and Methods: A total of 36 skeletally mature male New Zealand white rabbits were used. The rabbits were randomly divided into 2 groups. A mandibular corpus fracture was created experimentally in all 36 rabbits. The experimental group was administered an intravenous, single dose of 0.1 mg/kg ZA, and the control group was administered only saline infusion during the procedure. All rabbits were sacrificed on the 21st postoperative day. Digital radiodensitometric analysis, a 3-point bending test, and histologic and histomorphometric examinations were performed on the harvested hemimandibles. The data were analyzed statistically. Results: Biomechanical testing data showed that ZA treatment resulted in a significant increase in the healed bone strength. This result was supported by the radiologic, histologic, and histomorphometric findings. Conclusions: The results of the present study have revealed that systemic administration of ZA accelerates and improves the bone healing of mandibular fractures. © 2011 American Association of Oral and Maxillofacial Surgeons