Dual promoter strategy enhances co-expression of α-L-rhamnosidase and enhanced fluorescent protein for whole-cell catalysis and bioresource valorization.

Developing circular economy is the only way to improve the efficiency of resource utilization. Whole-cell catalysis is an effective method to recycle enzymes, improve catalytic efficiency, and reduce production costs. The enzyme, α-L-rhamnosidase has considerable application prospects in the field of biocatalysis as it can hydrolyze a variety of α-L rhamnoses.

Salvage surgery for neck residue or recurrence of nasopharyngeal carcinoma after primary radiotherapy: options of surgical methods and regions.

Background: Salvage surgery has been recommended as the approach of choice for neck residue or recurrence of nasopharyngeal carcinoma (NPC) after primary radiotherapy (RT). This study aimed to assess the outcome and prognostic factors, options for different surgical methods, and the extent of neck dissection (ND) for patients.

Methods: NPC patients who had undergone RT and received salvage surgery for neck residue or recurrence from January 2001 to December 2011 were retrospectively analyzed.

Up-regulation of BRAF activated non-coding RNA is associated with radiation therapy for lung cancer.

Radiation therapy has become more effective in treating primary tumors, such as lung cancer. Recent evidence suggested that BRAF activated non-coding RNAs (BANCR) play a critical role in cellular processes and are found to be dysregulated in a variety of cancers. The clinical significance of BANCR in radiation therapy, and its molecular mechanisms controlling tumor growth are unclear.

Regeneration of magnetic biochar derived from eucalyptus leaf residue for lead(II) removal.

Regeneration of Pb-loaded magnetic biochar prepared with eucalypts leaf residue was studied by using EDTA-2Na as a regenerant. The desorption efficiency was found to be 84.1% in 120 min with iron leaching amount of 1.

Combined performance of biochar sorption and magnetic separation processes for treatment of chromium-contained electroplating wastewater.

Magnetic biochar was prepared with eucalyptus leaf residue remained after essential oil being extracted. Batch experiments were conducted to examine the capacity of the magnetic biochar to remove Cr (VI) from electroplating wastewater and to be separated by an external magnetic field. The results show that the initial solution pH plays an important role on both sorption and separation.

[Squamous cell carcinoma of cervical lymph nodes from an unknown primary site: a retrospective analysis of treatment strategies and prognosis].

Objective: To analyze the treatment strategies and prognosis of squamous cell carcinoma of cervical lymph nodes from an unknown primary site (SCCUP).

Methods: A total of 125 cases with SCCUP was retrospectively analyzed from January 2001 to December 2011. Ninety-seven of the cases were treated with neck dissection (ND), including 24 with classic radical ND, 62 with modified ND and 11 with extended radical ND.

[Primary oncocytic carcinoma of the salivary glands: a clinical and pathologic study of 12 cases].

Purpose: To investigate the clinicopathological feature of oncocytic carcinoma of the salivary gland, and discuss diagnosis, treatment and prognosis.

Methods: From March 2001 to September 2010, the clinical data and pathological features of 12 cases of oncocytic carcinoma of the salivary gland in Zhejiang Cancer Hospital were reviewed and analyzed retrospectively. All cases are followed up.

The 2002 AJCC TNM classification is a better predictor of primary small cell esophageal carcinoma outcome than the VALSG staging system.

Small cell carcinoma of the esophagus (SCCE) is a rare and aggressive malignant tumor with a poor prognosis. The optimal disease staging system and treatment approaches have not yet been defined. This study aimed to evaluate the prediction of different staging systems for prognosis and treatment options of SCCE.