A correlation of breast cancer and calcium levels in hair analyzed by X-ray fluorescence.

Time variations of elemental concentrations and their abnormalities due to breast cancer have been observed along single hair strands by X-ray fluorescence excited by synchrotron radiation. The renal-controlled elements Ca, Sr, S, K, Cl, Br and P have upper and lower levels associated with gating and closing of ion channels in the hair-making cells. The Ca lower level is normal.

Concentration homeostasis and elements in hair and dried serum observed by X-ray fluorescence analysis using synchrotron radiation.

Elemental concentrations in hair and dried serum have been evaluated by X-ray fluorescence analysis using relative concentration independent of specimen thickness. Dried serum samples from 5 male and 5 female subjects given two-week Ca supplementation showed the same concentration for Ca, and for each of the other elements Cl, K, S and P under renal control by parathyroid hormone (PTH). Hair concentrations of these elements have been evaluated for 50 randomly-selected females aged between 30 and 80.

[A study to establish screening standards for determining cases for follow-up on health check-ups at 4 months, 18 months and 3 years of age from the viewpoint of child-rearing support].

Objective: For maternal and child health, in addition to assistance to children, support to guardians is needed with the change in the social environment due to child-rearing. In Kobe city, from 2002/ 04/01, interview sheets for health check-ups at 4 months, 18 months and 3 years of age were revised and questions about child-rearing were added. The purpose of the present study was to clarify revisions to interview sheets regarding childcare support.