Xiang-chen Meng

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In an effort to discover novel genes differentially expressed in human pancreatic cancer, we have identified a gene named PCD1 (pancreatic cancer derived) that is up-regulated in pancreatic dysplasia and cancer relative to normal pancreatic ductal epithelium. We cloned the full length (4572 bp) of this gene, which encodes a novel protein of 1064 amino acids(More)
Pain has both sensory-discriminative and emotional-affective dimensions. Previous studies demonstrate that electroacupuncture (EA) alleviates the sensory dimension but do not address the affective. An inflammatory pain rat model, produced by a complete Freund adjuvant (CFA) injection into the hind paw, was combined with a conditioned place avoidance (CPA)(More)
The active constituents of Herba Epimedii can raise the hypothalamic monoamine neurotransmitters levels in aging male rats and improve the learning and memory in aging rats and mice. It can also inhibit the activities of AchE both in brain tissues and whole blood in mice.
Eggs of Trichuris trichiura were prepared for scanning electron microscopy (SEM) by the dimethylsulfoxide freeze-cracking method. The egg-shell and oocyte were examined by SEM. The egg has a chitinous shell which consists of more than 10 layers of dense lamellae. The shell is bordered by a limiting membrane. An operculum and a collar made of chitinous shell(More)
Two essential requirements for probiotic bifidobacteria are that they be “live” and have “colonization” ability, following FAO/WHO guideline recommendations. The amount of research on the adhesion ability of bifidobacteria compares poorly with that of other probiotic bacteria, such as lactobacilli. The aim of the present study was to determine how(More)
The fine-structure of the egg shell and the oocyte of A. lumbricoides were examined with SEM. DMSO freeze fracture was used to obtain images of the eggs. Numerous filamentary fibers occur on the outer surface of the protein layer. These fibers are arranged in a network-like structure between the external projections of adjacent eggs. Twelve to 16(More)
The images of C. cellulosae detected by freeze-itch technique were exactly similar to those observed in the thin section. The scolex microtriches might be divided into two parts, a thick proximal portion and a thinner spinal distal end, the former measuring about 0.2-0.4 micron in length, the latter measuring about 1-2 microns in length. On the(More)
Purpose Previous studies demonstrated that electroacupuncture (EA) alleviates hyperalgesia, but the mechanisms remained unclear. Because it is well known that inter-leukin-17 (IL-17) is associated with autoimmune disorders , the present study was designed to determine whether spinal IL-17 plays a role in inflammatory pain and, if so, whether EA inhibits(More)
OBJECTIVE Bifidobacteria are one of the predominant bacterial species in the human gastrointestinal tract (GIT) and play a vital role in the host's health by acting as probiotics. However, how they regulate themselves to adapt to GIT of their host remains unknown. METHODS Eighteen bifidobacterial strains were used to analyze their adaptive capacities(More)