Hypocalcemia is one of the most frequent complications after total extracapsular thyroidectomy (TET). In most of cases it is a transient phenomenon. The aim of this study is to evaluate if and how the oral administration of calcium or calcium combined with D-vitamin could effectively prevent post-thyroidectomy hypocalcemia. A randomized prospective study was performed, recruiting 120 patients w...

Dr. Troels Ring, MD, Medical Department C, Aalborg Hospital, Aalborg (Denmark) Dear Sir, Two recent papers comparing calcium carbonate with calcium acetate both conclude that calcium acetate is the better phosphorus binder. In the paper by Caravaca et al. [1], the serum phosphate concentration was 1.80 ± 0.50 (SD) mmol/l while on calcium acetate, and 1.93 ± 0.48 on calcium carbonate in a parall...

Dr. Troels Ring, MD, Medical Department C, Aalborg Hospital, Aalborg (Denmark) Dear Sir, Two recent papers comparing calcium carbonate with calcium acetate both conclude that calcium acetate is the better phosphorus binder. In the paper by Caravaca et al. [1], the serum phosphate concentration was 1.80 ± 0.50 (SD) mmol/l while on calcium acetate, and 1.93 ± 0.48 on calcium carbonate in a parall...

Red meat intake is associated with increased risk of colorectal cancer. We have previously shown that haemin, haemoglobin and red meat promote carcinogen-induced preneoplastic lesions, aberrant crypt foci, in the colon of rats. We have also shown that dietary calcium phosphate inhibits haemin-induced promotion, and normalizes faecal lipoperoxides and cytotoxicity. Unexpectedly, high-calcium pho...

[1] During the Paleocene‐Eocene thermal maximum (PETM ∼55 Myr ago), prominent climatic and biogeochemical changes took place in the atmosphere, ocean, and on land. For example, deep‐sea temperatures rose by 5°C to 6°C, while sea surface temperatures at high latitudes increased by up to 9°C. In the sedimentary record, the onset of the PETM is marked by widespread dissolution of calcium carbonate...

Dr. Troels Ring, MD, Medical Department C, Aalborg Hospital, Aalborg (Denmark) Dear Sir, Two recent papers comparing calcium carbonate with calcium acetate both conclude that calcium acetate is the better phosphorus binder. In the paper by Caravaca et al. [1], the serum phosphate concentration was 1.80 ± 0.50 (SD) mmol/l while on calcium acetate, and 1.93 ± 0.48 on calcium carbonate in a parall...

Moonmilk is a karstic speleothem mainly composed of fine calcium carbonate crystals (CaCO3) with different textures ranging from pasty to hard, in which the contribution of biotic rock-building processes is presumed to involve indigenous microorganisms. The real microbial input in the genesis of moonmilk is difficult to assess leading to controversial hypotheses explaining the origins and the m...

Microbially induced calcium carbonate precipitation is one of the biomineralization types closely dependent on the parameters of the microenvironment. Minerals are precipitated as a product of environmental and bacterial cell interactions, however, this system has very little control via microorganisms. The aim of research was to determine the influence of abiotic factors (pH, temperature, agit...