Publications by authors named "Jie-Han Hu"

Objective: To evaluate the effect of myofascial manipulation by observing the changes in pelvic floor myofascial scores and electromyography (EMG) data before and after treatment.

Methods: A total of 106 patients with myofascial pelvic pain (MFPP) were enrolled in a treatment group, and 50 healthy women were enrolled in a control group. The changes in the pelvic floor EMG data in the two groups were monitored by using Myo Trac before and after treatment.

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This paper reports two methods of synthesis for 1,2,4-trimethoxy-5-(1-methyl-2-phenyl-vinyl)-benzene, which was a key intermediate to synthesize the various Lamellarins. One method is by using the Wittig-Horner reaction and another is by the Grignard reaction. By conducting contrast experiments, we got the optimal reaction parameters for high yields.

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The binding reaction of colchicine with human serum albumin (HSA) was studied by UV-Vis absorption, fluorescence and circular dichroism spectrometry. The results indicated that colchicine led to the increase in UV absorption and the quenching of intrinsic fluorescence of HSA. As the temperature increased, the quenching constant Ksv decreased.

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The rule of infrared spectroscopic characteristics of the five alpha, alpha'-dioxoketene cyclic s, s-acetals was studied, and the influence of the molecular structure on the IR was indicated. All 1H and 13C NMR chemical shifts of the five compounds were assigned, and the effects of structures on the chemical shifts of 1H and 13C NMR were discussed. The rule of change is the same as that of IR.

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A highly unsaturated new amide, (2E,4Z,8Z,10Z)-N-isobutyl-2,4,8,10-dodecatetraenamide (1), was isolated in very small quantities from the whole plant of Asarum forbesii Maxim. together with four known compounds, (2E,4E,8Z,10E)-N-isobutyl-2,4,8,10-dodecatetraenamide (2), (-)-sesamin (3), (-)-asarinin (4) and (E)-asarone (5). The Z/E isomers, 1 and 2, were separated successfully by developed silver-ion medium-pressure liquid chromatography (SIMPLC).

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The characteristics of ultraviolet spectra of five alpha,alpha'-dioxoketene cyclis,s,s-acetals (N,N-acetals) have been studied in different solvent, on the basis of last paper. And the character of ultraviolet spectra of sulfur-containing compounds and nitrogen-containing compound was compared in the same solvent, the changing rules with the change of chemical structure have been indicated. It is specially important that the character of such as this conjugated system was studied, however it almost did not do before.

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In the past, the method of reconstitution was used to investigate the interaction between metalloenzymes (containing Zn(II)) and metal ions. In this paper, electron paramagnetic resonance (EPR) has been employed to firstly study the direct interactions between Bacillus subtilis neutral proteinase (BSNP), nuclease P1 and Cu(II) ions added in aqueous solution, respectively. These results show that a dynamic equilibrium exists between the Zn(II) in the active site of native enzymes and the added Cu(II), the added Cu(II) partly replaces the Zn(II), forming Cu(II)-enzyme derivatives.

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