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  • Author: Mădălina Nan x
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Olga Drăghici, Ionuţ Avram, Daniela Hîrîciu, Mădălina Nan and Alina Toader

Abstract

Myoglobin, meat pigment is an iron containing protein found in muscle consisting of heme connected to a single proteide chain. Color is the most important factor in meat products influencing the consumer purchase decision and affecting the perception of freshness. This research presents a spectophotometric method tested identify myoglobin in beef, readings being made at several wavelenghts. Oxidation of myoglobin pigment in metmyoglobin, was also analysed using peroxide hydrogene. A considerable decrease of myoglobin compared with the standard sample was observed (approximately 7 times).

Open access

Raluca Nan, Adrian Cursaru, Daniel Grigorie, Alina Şucaliuc, Ramona M. Drăguţ, Emilia Rusu, Mădălina D. Muşat and Gabriela Radulian

Abstract

Background and Aims: The aim of the present study was to evaluate the characteristics of bone turnover markers and 25-hydroxy vitamin D levels in women with type 2 diabetes and recently diagnosed postmenopausal osteoporosis.

Material and Methods: We performed a retrospective study that included 80 women with newly diagnosed postmenopausal osteoporosis: 40 women with type 2 diabetes (diabetic group) and 40 women without diabetes (non-diabetic group). For data collection we used the patients database of the National Institute of Endocrinology ”C.I. Parhon”, Bucharest, Romania.

Results: Women with type 2 diabetes had significantly reduced levels of osteocalcin and crosslaps than non-diabetic women. In the diabetic group, alkaline phosphatase and 25-hydroxy vitamin D were lower than in non-diabetic women but without statistical significance. There was not statistically significant difference of bone mineral density (BMD) between diabetic and non-diabetic groups. Magnesium was significantly lower in diabetic women compared with non-diabetic women.

Conclusions: Our results demonstrated a low bone turnover in type 2 diabetic women and it was shown an insufficiency of 25-hydroxy vitamin D in both studied groups. These findings should be taken into account when screening these patients for diabetes complications.