Trace elements concentrations association with schizophrenia symptoms; A cross-sectional study in Croatia.

Background: Significant inconsistencies exist in findings on association of bio-elements (BE) concentrations and schizophrenia. Hypothesis of this research was that different concentrations of BE are associated with different psychopathological schizophrenia symptoms.

Subjects And Methods: This cross-sectional study was performed from 2014 to 2016 at Psychiatric Hospital "Sveti Ivan" and University Psychiatric Hospital "Vrapče", Zagreb, Croatia, on the consecutive sample of 67 patients diagnosed with schizophrenia.

In search of decoding the syntax of the bioelements in human hair - A critical overview.

The principles and practice of assessing the human body nutritional status or its environmental exposure through hair bioelement analysis are presented; herein the term "bioelements" is used as a common denominator for the major elements, trace elements and ultra-trace elements that are found in the human body. The accumulation of bioelements in the hair followed the statistical Power Law and the resulting sigmoid curve can be zoned into five regions in the ascending order of abundance (Low, Marginal, Adequate, High, and Excessive). The Adequate linear region of the bioassay sigmoid curve may be further subdivided into Low adequate, Recommended, and Ample adequate sub regions in a 60:30:10 ratio.

Assessing the boron nutritional status by analyzing its cummulative frequency distribution in the hair and whole blood.

Boron is a non-essential ubiquitous trace element in the human body. The aim of this study was to assess boron nutritional status by analyzing boron frequency distribution in the long-term biological indicator tissue of hair and the short-term biological indicator of whole blood. Hair samples were analyzed in 727 apparently healthy subjects (263 ♂ and 464 ♀) and the whole blood boron was analyzed in the random subsample of them (80 ♂ and 152 ♀).

Hair for a long-term biological indicator tissue for assessing the strontium nutritional status of men and women.

Strontium (Sr) is a trace element that closely resembles calcium metabolism. At the present time there is no available long-term biological indicator tissue for assessing the human Sr nutritional status. Here we have presented a novel concept on how to assess the Sr nutritional status by studying the frequency distribution properties of hair Sr (H) concentration.