Promoter engineering strategies for the overproduction of valuable metabolites in microbes.

Promoter engineering is an enabling technology in metabolic engineering and synthetic biology. As an indispensable part of synthetic biology, the promoter is a key factor in regulating genetic circuits and in coordinating multi-gene biosynthetic pathways. In this review, we summarized the recent progresses in promoter engineering in microbes.

Effect of total flavonoids from on dopaminergic neurons in the substantia nigra.

The aim of the present study was to investigate the effect of stem-leaf total flavonoid (SSTF) on the dopaminergic neurons in the substantia nigra in a mouse model of Parkinson's disease (PD). The mouse model was established by intravenous injection of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). SSTF (5 mg/kg) was administered to the mice before or after MPTP injection, and the effects of SSTF on the behavior of the mice and the dopaminergic neurons in the substantia nigra were assessed.

Clinical Outcomes of Wulingsan Subtraction Decoction Treatment of Postoperative Brain Edema and Fever as a Complication of Glioma Neurosurgery.

Objective. To evaluate the efficacy of Wulingsan subtraction ( WLSS) decoction in the treatment of postoperative brain edema and fever as a complication of glioma neurosurgery. Methods.

Protective Effect of Polysaccharides from Inonotus obliquus on Streptozotocin-Induced Diabetic Symptoms and Their Potential Mechanisms in Rats.

The present study aimed to evaluate the therapeutic effects of polysaccharides from Inonotus obliquus (PIO) on streptozotocin- (STZ-) induced diabetic symptoms and their potential mechanisms. The effect of PIO on body weight, blood glucose, damaged pancreatic β-cells, oxidative stresses, proinflammatory cytokines, and glucose metabolizing enzymes in liver was studied. The results show that administration of PIO can restore abnormal oxidative indices near normal levels.

Effects of acupuncture on the gene expression profile of lung tissue from normal rats.

Acupuncture has been demonstrated to be an effective treatment for various diseases. However, little attention has been paid to its physiological influences, especially on the changes in protein and mRNA levels following acupuncture treatment under normal conditions. In this study, we investigated the gene expression profile of lung tissue from acupuncture-treated normal rats and attempted to characterize the underlying mechanisms of the changes in expression.

[Characterization and secreted expression of dengue virus type I-IV envelope glycoprotein domain III in Pichia pastoris].

Objective: To achieve secretory and extracellular production of recombinant dengue virus serotypes I-IV envelope glycoprotein domain III (DENV-1-4 EDIII) in Pichia pastoris.

Methods: EDIII genes of DENVI-IV were amplified and cloned into vector pPIC9K, respectively. These recombinant plasmids were then linearized and transferred into Pichia pastoris strain GS115.

Use of serial analysis of gene expression to reveal the specific regulation of gene expression profile in asthmatic rats treated by acupuncture.

Background: Asthma has become an important public health issue and approximately 300 million people have suffered from the disease worldwide. Nowadays, the use of acupuncture in asthma is increasing. This study intended to systematically analyze and compare the gene expression profiles between the asthmatic and acupuncture-treated asthmatic rat lung, and tried to gain insight into the molecular mechanism underlying the early airway response (EAR) phase of asthma treated by acupuncture.

Serial analysis of gene expression in a rat lung model of asthma.

Background And Objective: The pathogenesis and molecular mechanism underlying asthma remain undetermined. The purpose of this study was to identify genes and pathways involved in the early airway response (EAR) phase of asthma by using serial analysis of gene expression (SAGE).

Methods: Two SAGE tag libraries of lung tissues derived from a rat model of asthma and controls were generated.

Integrated gene expression profile predicts prognosis of breast cancer patients.

Gene expression data has in recent years demonstrated the superior capacity to predict the prognosis of breast cancer patients unreceiving adjuvant chemotherapy comparing to the information available from traditional clinical and pathological sources. Meanwhile, adjuvant chemotherapy can significantly improve survival of breast cancer. It would be inappropriate to ignore its effect on prognosis.

[Sequencing and analysis of Vibrio cholerae typing phage VP3 genome].

DNA sequence and the genome of phage VP3 (a typing phage of V. cholera) were analyzed. A random library of VP3 DNA was constructed by shot-gun library method.

[Pharmacognostic studies on Desmodium gyrans].

Objective: To study the characteristic features of Desmodium gyrans in order to provide a basis for rational exploitation and utilization of the herb.

Method: Samples of the title plant were collected, the microscopic features of cross sections and powders were studied. TLC profiles and UV absorption of the plant extract were examined.