Terapeutic options used to repair tendon and ligament injury consist of autografis,allografts and synthetic prostheses.Tendon and ligament of tissue engineering have their unique advantages as alternative therapy.Choosing the proper scaffold materials is important for successfully constructing tissue engineering tendon and ligament,so in this review we focus on natural and artificial scaffold materials used in tissue engineering of tendon and ligament in recent years.

Objective To explore the clinical value of testing LDH and IL-2 in the serum of the patients with the acute leukemia. Methods The LDH and IL-2 in the serum of 15 patients with the acute leukemia were tested,who consist of the patients with first treatment,recurrence and remission,compared with these of the normal people in control group.Results The LDH of the patients with first treatment and recurrence was obvious higher than tllat of the patients with remission;the IL-2 of the patients with first treatment and recurrence was obvious lower than that of the patients with remission.The LDH descent and IL-2 ascent were found in the patients with remission.Conclusion The cell load of the patients with the acute leukemia can depress the expression of IL-2 in the patients with the acute leukemia.

The initiation and development of gastric cancer is due to the effects from both external and internal factors.Recent researches show that external environment factors regulate and control the key genes expression during the process of cell's growth and development through epigenetic modification such as DNA methylation or demethylation,histone modification and small RNA,thus playing an important role in gastric cancer's occurrence and development.

Because of their physiological and anatomical immaturity, premature infants are prone to disorders of glucose metabolism. In the ifrst week after birth, infants have the greater risk of abnormal glucose metabolism. Compared with term infants, the glucose/insulin homeostasis of preterm infants is very different. This article reviewed the characteristics of glycometabolism in premature infant and the methods of glucose test.

Objective To investigate the relationship between concurrent mental disorders and original respiratory diseases.Methods 35 cases diagnosed as severe respiratory diseases accompanied by various mental disorders from July 2005 to December 2008 were analyzed with the clinical presentation,examination,diagnosis and treatment.Results After the treatments of the original respiratory diseases and the necessary psychiatric drugs,the original respiratory diseases relieved and the symptoms of mental disorders disappeared.Conclusion Much more attention should be paid to concurrent mental disorders of respiratory diseases,and the timely treatments of symptoms of mental disorders will be of benefit to the therapy of original diseases.

The present study was undertaken to identify some afferent connections of the ventral and dorsal parts of pontine tegmentum in guinea pigs by using horseradish peroxidase retrograde microelectrophoretic technique.After introducing HRP into the ventral part of pontine tegmentum, numerous labeled cells were observed in the mesencephalic central gray and related reticular formation, which is equivalent to the MSR (Mesencephalic Stepping Region) ventral to the surface of the superior colliculus. Labeled cells could also be identified at the following sites: nucleus cuneiformis ventral to the surface of inferior colliculus, nucleus tractus spinalis nervi trigemini, nucleus reticularis gigantocellularis, nucleus medialis vestibulares, nucleus lateralis vestibulares, nucleus loci coerulei and its ventral part, gray matter of the cervical enlargement of spinal cord.Following injection of HRP into the dorsal part of pontine tegmentum, substantial amount of labeled cells were observed in the nucleus reticularis pontis caudalis and nucleus reticularis gigantocellularis Labeled cells gould also be identi- fied in the nucleus medialis vestibulares, nucleus lateralis vestibulares and nucleus cuneatus. Only a few HRP cells appeared around the nucleus tuber in the midbrain and no labeled cells have been seen in the nucleus loci coerulei, as well as the gray matter of cervical spinal cord.

The role of myeloid-derived suppressor cells (MDSCs)in promoting inflammatory response and immune escape of tumor cells and the mechanism by which MDSCs promote the development and progression of tumors are reviewed.This could provide a new way for the investigation of immunological mechanism of liver fibrosis and liver cancer.Besides,MDSCs may be an effective therapeutic target for liver cirrhosis and liver cancer.

Hypopharyngeal cancer is considered to be one of the head and neck tumor with poor progno -sis.The clinical curative effect of different treatments for hypopharyngeal cancer is also different .Surgery and ra-diotherapy of comprehensive treatment are the main treatments of hypopharyngeal cancer .Chemotherapy and bio-logical therapy also plays an important role on hypopharyngeal cancer .In this paper,we summarize the clinical curative effect of different treatments for hypopharyngeal cancer .

Objective: To examine the effect of group mental intervention on implicit and explicit aggression of violent juvenile criminals. Methods: A survey investigation and IAT test on implicit aggression were employed to evaluate the aggression of violent juvenile criminals. And the effect of ten times of group intervention on aggression of juvenile criminals was analyzed. Results: After group mental intervention, the implicit aggression was not reduced significantly, but the intervention effect on explicit aggression was significant. Physical aggression and verbal aggression of explicit aggression reduced significantly, but there was no significant difference in rage and hostility. Conclusion: Group mental intervention is an effective method for reducing explicit aggression of violent juvenile criminals.