Dental Pulp Diseases ; diagnostic imaging ; Diagnosis, Differential ; Humans ; Periapical Diseases ; diagnostic imaging ; Problem Solving ; Radiography ; X-Rays

Chronic Disease ; Humans ; Tooth Diseases ; etiology ; pathology ; prevention & control

The study of peptide drugs has been an important direction in research and development of new drugs. However, lots of natural macromolecular peptides are limited in clinical use by their metabolic instability and low bioavailability. In recent years, the active small peptidomimetics open up a new hotspot of peptide drug development with the characteristics of low molecular weight, high bioactivity and structural modification. Many peptidomimetics are on the market or on the clinical study. This paper elaborated the small peptidomimetics approved by American Food and Drug Administration (FDA) from 2005 to 2014, and reviewed their researching status with source, synthetic method, chemical structure, marketing time, indication, clinical efficacy and safety. Research prospects in this field were discussed.
Biomedical Research ; trends ; Peptidomimetics ; United States ; United States Food and Drug Administration

Chronic Disease ; Humans ; Tooth Diseases ; Tooth Injuries

Dose-Response Relationship, Radiation ; Humans ; Radiation, Ionizing ; Radiation, Nonionizing ; adverse effects

Humans ; Root Canal Filling Materials ; Root Canal Obturation ; methods ; Tooth Root ; physiopathology

Humans ; Root Canal Preparation ; adverse effects ; methods

Humans ; Root Canal Therapy ; adverse effects ; methods

Humans ; Root Canal Filling Materials ; Root Canal Therapy ; methods ; Tooth Root ; physiopathology

HPLC fingerprint of Congrong Zonggan capsule was established in order to provide basis for quality evaluation. With acteoside as the reference, HPLC was adopted for fingerprint analysis on Congrong Zonggan capsule. The chromatographic conditions wereas follows. Waters C18 column (4.6 mm x 150 mm, 5 μm) was used, with methylalcohol-0.1% formic acid as the mobile phase for gradient elution at the flow rate of 1.0 mL x min(-1). The detection wavelength was 330 nm, and the column temperature was 30 °C. This method was highly accurate and reproducible. All of the 13 components in tested samples reached the baseline resolved peak, and 15 batches of finished products showed the similarity of above 0.95. The method was accurate and feasible and could be used as a simple and effective method to evaluate the quality of the traditional Chinese medicines.
Capsules ; analysis ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; Plants, Medicinal ; chemistry ; Quality Control