Publications by authors named "Ai-Jun Mao"

Background: Hemorrhoids are one of the most common conditions that lead to surgery, and until now surgical hemorrhoidectomy has been the major effective treatment. Post-operative pain from hemorrhoidectomy has been experienced by thousands of patients and remains a major inconvenience of the operation.

Objective: This study evaluates the clinical efficacy of the pestle needle therapy, an acupoint stimulation method, for relief of post-hemorrhoidectomy pain.

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Article Synopsis
  • Aquaporins are crucial membrane channels that control water movement in living organisms, but their role in cucumber fruit development is not well understood.
  • The study identified and analyzed 12 cucumber genes encoding plasma membrane intrinsic proteins (PIPs), using homology with known PIPs from other plants.
  • The findings suggest that these CsPIPs are differentially expressed during fruit development and are important for cucumber's life cycle, providing insights into their specific functions.
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The ability to manage reactive oxygen species (ROS) effectively is crucial for the survival of gut bifidobacteria under conditions of oxidative stress. Alkyl hydroperoxide reductase catalytic subunit C (ahpC) of Bifidobacterium longum responds to various oxidative stresses. In this study, an ahpC-overexpressing transformant of B.

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Culture independent method was used to study the diversity of rumen bacteria. Molecular diversity of rumen bacteria was analyzed by PCR amplification and sequencing of 16S rDNA clone libraries prepared from the rumen content of Holstein cows. The total DNA directly extracted from rumen fluid was used as PCR template.

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Complete mannanase gene with two introns was cloned from Trichoderrna reesei by PCR. The two introns were then removed by overlap extension PCR. The gene encoding the mature mannanase protein was inserted into the expression vector pPIC9K, downstream of a alpha-factor signal peptide sequence.

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Article Synopsis
  • A beta-Glucosidase gene (BGL 1) was isolated from Sacchromycopsis fibuligera and integrated into the pPIC9K expression vector using PCR and restriction enzymes.
  • The recombinant plasmid pSHL9K was created and transformed into Pichia pastoris GS115 through electroporation, enabling the production of recombinant beta-Glucosidase.
  • The enzyme showed optimal activity at 50°C and pH 5.4, reaching a potency of 47 U/mL in the culture medium.
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The beta-glucosidase encoding gene bglA was cloned from Bacillus polymyxa 1.794. The bglA gene was inserted in expression vector pET28a(+) and transformed into Escherichia coli BL21 (DE3), finally the recombinant strain BL1979 was obtained.

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The cDNA sequence of beta-xylanase gene (xynB) was cloned from Aspergillus niger UV-11. It was inserted into the yeast expression vector and the recombinant plasmid pAX2 was obtained. The plasmid pAX2 was introduced into an industrial S.

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