Interchromosomal Colocalization with Parental Genes Is Linked to the Function and Evolution of Mammalian Retrocopies.

Retrocopies are gene duplicates arising from reverse transcription of mature mRNA transcripts and their insertion back into the genome. While long being regarded as processed pseudogenes, more and more functional retrocopies have been discovered. How the stripped-down retrocopies recover expression capability and become functional paralogs continually intrigues evolutionary biologists.

Sucking lollipop after awakening from sevoflurane anesthesia reduces the degree of emergence agitation in children undergoing ambulatory surgery: A prospective randomized controlled trial.

Background: Emergence agitation (EA) is a common complication in pediatric anesthesia, especially in preschool children maintained by sevoflurane, with incidence ranging up to 80%. The purpose of the study was to determine whether sucking lollipop after awakening from sevoflurane anesthesia reduced the degree of EA in children undergoing ambulatory surgery.

Methods: In this prospective study, 40 children aged 2 to 6 years scheduled for ambulatory surgery with sevoflurane were enrolled.

[The surgical management of parapharyngeal space neoplasms with skull base involved].

Objective: To describe the most appropriate treatment to parapharyngeal space tumors with skull base involved.

Method: From March 2000 to July 2004, a retrospective review of 36 patients with tumors of parapharyngeal space with skull base involved and treated surgically procedure was performed. Analyze the clinical characteristics of different tumors of parapharyngeal space with skull base involved.

[Using PCR method to study the EB virus DNA in NPC].

Objective: To study the EB virus DNA distribution in paraffin-embedded tissue, peripheral blood leukocyte and serum in nasopharyngeal carcinoma patients (NPC).

Method: PCR method, in paraffin-embedded tissue of 39 patients with NPC (NPC group-1) and 20 patients with chronic nasopharyngitis (control group-1), in peripheral blood leukocyte and serum of 24 patients with NPC (NPC group-2) and 10 patients with other head and neck carcinoma (control group-2) and 10 patients with chronic nasopharyngitis (control group-3) were used to test the presence of Epstein-Barr virus DNA. At the same time, we also measured serum EB virus VCA-IgA antibodies with enzyme-immunoassay in NPC group-2, control group-2 and control group-3.

[Anatomical landmarks of skull base and safety of the skull base surgery].

Objective: In order to improve the safety of skull base surgery and to completely resect the skull base tumors, the anatomical landmarks of skull base were studied.

Methods: 29 cases of skull base surgery were performed between 1992 and 2002, and their clinical data were retrospectively analysed. The anatomical landmarks of cranial base, such as comb, pterygoid process, spine of temporal bone, styloid process, and internal caroid artery, were analysed in preoperative diagnosis and operative treatment of various kinds of skull base tumors.

[Pearson technique in the treatment of advanced laryngeal cancer].

Objective: To seek for a better method of treating the advanced laryngeal cancer.

Method: Twenty-eight cases of advanced laryngeal cancer were treated with near-total laryngectomy(Pearson technique), including 11 glottic cancers(III stage, 8 cases: IV stage, 3 cases), 17 supraglottic cancers (III stage, 13 cases; IV stage, 4 cases). In the same time 26 patients had neck node dissections.

[A clinical study on improving phonation function of larynx after partial laryngectomy].

Objective: To analyse the clinical results of reconstruction of vocal cord using sternohyoid muscle flap after partial laryngectomy and research a new repairing method to improve laryngeal function and living quality of patient.

Method: The pronunciation of larynx is on the basic of the vibration of the vocal cord by air current. The laryngeal appearance and the function of opposite side vocal cord is very important for improving the quality of pronunciation.