An experimental study addressing the promotion of mandibular defect repair through the intermittent subcutaneous injection of parathyroid hormone.

Purpose: Parathyroid hormone (PTH) is a major regulator of bone metabolism. Various animal studies and clinical trials have addressed the treatment of osteoporosis and fracture healing with the intermittent administration of PTH, whereas few studies have investigated the effects of PTH on mandibular defect repair. This study sought to examine the feasibility of using recombinant human PTH (rhPTH) to promote the repair of mandibular defects and to provide a preliminary investigation of the underlying mechanisms of this phenomenon.

[An epidemiological survey of the prevalence of thyroid diseases in mild iodine deficiency city after salt iodization].

Objective: To investigate the current status of iodine nutrition and the prevalence of thyroid diseases in Guiyang, a mild iodine deficiency city practiced salt iodization for 25 years.

Methods: A representative sample of 1509 adults aged 20 years old or above in Guiyang, selected by a multistage stratified sampling method, participated in the study. After an overnight fasting, serum thyroid hormones, serum thyroid autoantibodies, and urine iodine were measured.

[Survey of vitamin D status in 700 healthy adult males in Guiyang, China].

Objective: To evaluate the vitamin D status of healthy adult males living in Guiyang.

Methods: A total of 700 healthy volunteers aged 20 - 79 years were selected randomly from a community in Guiyang by stratified sampling method. Questionnaires for living habits and fasting blood samples were collected in the morning from November 2009 to January 2010.