Blind review is one of the most important milestones in clinical trials, which connects data management process to statistical analysis. During blind review, data quality should be reviewed and assessed on both data management and statistical aspects. The primary work of data managers in blind review is to ensure the accuracy of data before it is handed over to biostatistics group. Database auditing, listing data reviewing and reconciliation should become a good clinical data management practice. Statisticians, on the other hand, will focus on quality findings related to protocol deviations or protocol violations. To investigate the protocol deviations and/or violations and relevant impacts on data outcomes, it is important to provide the essential basis of data quality through the blind review, and to assess the reliability of study outcomes.
Biostatistics ; Clinical Trials as Topic ; Data Accuracy ; Databases, Factual ; Reproducibility of Results

Alzheimer's disease (AD) and other aging-related diseases have become an important public health issue in China. However, current clinical drugs have failed to reverse the pathological process of AD. The holistic approach of traditional Chinese medicine offers advantages in improving cognitive function in AD through multiple molecular pathways, and may have potential for preventing AD. This paper summarizes the effects of classical traditional Chinese medicine and its active components in the improvement of AD-related cognitive dysfunction and describes the functional targets and related molecular mechanisms. This may have significance for the prevention and treatment of AD through multi-target intervention.

The conformity between bone implant and bone tissue plays an important role in osseointegration.Protein molecules such as extracellular matrix proteins,cytoskeletal proteins,and attachment proteins,which produced by osteoblasts,promote the attachment of osteoblasts to bone implant and the surrounding ceils.In vitro studies show that nano-plated implant material bears excellent biocompatibility and superior physical and chemical features.Nano-scale material has the advantage of high surface roughness,wettability and electrochemistry features which erdaance the adherence and interaction of extracellular matrix proteins and promotes the attachmerit,proliferation and differentiation of osteoblasts.The expression of cytokines,such as prostaglandin E2(PGE2)and transforming growth factor-β(TGF-β)are also increased in nano-structured bone implants which in turn promote the new bone formation.Further studies need to be done to explain the mechanism of the effect of nano-tructured bone implant on osteoblasts.

Objective: To investigate the effect of Qihuang herbal warm bag on primary dysmenorrhea. Methods: Thirty-two patients with primary dysmenorrhea were selected as subjects and treated by compression with the herbal warm bag for two months. The curative effect was evaluated, and prostaglandin F2a(PGF2a) and β-endorphin(β-EP) were measured before and after treatment. Results: The herbal warm bag had positive effects on dysmenorrhea at different degrees and could decrease the contents of blood PGF2a and β-EP. Conclusion: The herbal warm bag is quite effective for primary dysmenorrhea possibly by decreasing serum PGF2a and increasing serum β-EP.

Objective To study the cytopathogenic effect of epidemic hemorrhagic fever with renal syndrome virus (HFRSV) on renal tubular cells(RTC). Methods Human fetal renal tubular cells (HFRTC) were cultured in vitro. HFRTC infected or not infected by HFRSV were observed by using trypan-blue stain and transmission electron microscopy(TEM). Viral-mRNA was detected by in situ molecular hybridization. Results (1) HFRSV could directly infected HFRTC: (2)The death rate of HFRTC in the infection group was significantly higher than that in the control grou 1 to 4 weeks after infection; (3) Injuries of cell membrane and cell organs after infection with HFRSV were significantly earlier and more severe as compared to control by means of TEM. Conclusion HFRSV can directly damage renal tubular cells (RTC ), which contributes to the pathogenesis of hemorrhagic fever with renal syndrome (HFRS).

Acupuncture Therapy ; instrumentation ; Adolescent ; Adult ; Child ; Child, Preschool ; Female ; Hot Temperature ; Humans ; Male ; Mumps ; therapy ; Sulfur ; chemistry ; Young Adult

Objective: To identify Rehmanniae Radiuxand its closely related species using the ITS2 barcode and to guarantee the quality and clinical curative effect of this medical material. Method: The sequences has been ana-lyzed and assembled using corresponding software. The Kimura 2-Parameter (K2P) distances were calculated and NJ (neighbor-joining) tree was established based on the K2P methods to identify the Rehmanniae Radix. Results:The length of the ITS2 sequence of Rehmanniae Radix was 231 bp. The average intra-specific genetic distances of Rehmanniae Radix were 0.0004. The average inter-specific genetic distances between Rehmanniae Radix and its closely related species were 0.0312. The minimum inter-specific divergence is larger than the maximum intra-specific divergence. The Rehmanniae Radix can be identified using the NJ trees method. Conclusions: The ITS2 sequence can be used as DNA barcode to identify Rehmanniae Radix and its closely related species, which will lay the foundation for the clinical medication safety of Rehmanniae Radix.

Cardiac toxicity is found in frequently used chemotherapeutic agents.There are many factors related to the cardiac toxicity caused by chemotherapeutic agents.The common cardiovascular complications include heart failure,ischemia,hypertension,hypotension,edema,QT prolongation,pleural effusion,pericardial effusion,bradyarrhythmia and thromboembolism.It is necessary to monitor the left ventricular function before and after chemotherapy and take effective measures to protect myocardium.

Objective To explore medium-term,long-term efficacy of collagenase injected to target site by CT-guided in treatment for lumbar disc herniation. Methods 50 patients with lumbar disc protrusion were treated with CT-guided percutaneous injection of collagenase accurately reaching prominence(target site). Results All patients were followed up 36 to 60 months. The total effective rate was 82.97% (more than 36 months)and82.23%(more than 60 months). Conclusion Grasping indications well, CT-guided percutaneous injection of collagenase target site in treatment of lumbar disc herniation was accurate, safe, simple, effective, and was the preferred treatment for such patients.

This paper reviewed the research developments of identification and classification ofDendrobium species based on DNA sequences from nuclear genome, mitochondrial genome and chloroplast genome. The existing documents revealed that DNA sequences used in identification ofDendrobium mainly include ITS/ITS2,LEAFY, chloroplastrbcL, matK, trnH-psbA, rpoB, rpoC1, trnL-F, rbl16, trnl intron, and mtDNA, nad1 intron2. These DNA sequences had the reference meanings in the identification ofDendrobium species. This article discussed the feasibility of complete chloroplast genome as the“super-barcode”, which provided the references for identification of medicinal plants inDendrobium.