Causes of recurrence of paediatric inguinal hernia after single-port laparoscopic closure.

Purpose: This paper explores the causes of paediatric inguinal hernia (PIH) recurrence after single-port laparoscopic percutaneous extraperitoneal closure (SPLPEC).

Method: From January 2015 to December 2020, the clinical data of 3480 children with PIHs who underwent SPLPEC were retrospectively reviewed, including 644 children who underwent SPLPEC with a homemade single-hook hernia needle from January 2015 to December 2016 and 2836 children who underwent the SPLPEC with a double-hook hernia needle and hydrodissection from January 2017 to December 2020. There were 39 recurrences (including communicating hydrocele) during the 2-5 years of follow-up.

[Biosorption and Biomineralization of Uranium(VI) from Aqueous Solutions by Landoltia Punctata].

The biosorption and biomineralization characteristics of uranium by the duckweed Landoltia punctata was investigated in aqueous solutions enriched with 1 to 250 mg · L(-1) of U(VI) supplied as uranyl nitrate [UO2(NO3)2 · 6H2O]. The maximum uranium removal for the plant cultivar occurred at pH 4~5 of solution and their uranium removal efficiencies exceeded 90% after 24 h. In kinetics studies, the dried powder of duckweed can finished nearly 80% adsorption within 5 min, the batch adsorption equilibrium can be reached within 24 h for the living and dried powder of duckweed, Both for the living and dried powder of duckweed, the experimental data were well fitted by the pseudo-second-order rate model with the degree of fitting (r) higher than 0.

[Biosorption of Radionuclide Uranium by Deinococcus radiodurans].

As a biological adsorbent, Living Deinococcus radiodurans was used for removing radionuclide uranium in the aqueous solution. The effect factors on biosorption of radionuclide uranium were researched in the present paper, including solution pH values and initial uranium concentration. Meanwhile, the biosorption mechanism was researched by the method of FTIR and SEM/EDS.

[Characteristics of U (VI) biosorption by biological adsorbent of platanus leaves].

The platanus leaves were used as adsorbent to study uranium removal efficiency from aqueous solution on the basis of adsorption kinetics and isotherm equations. Static adsorption affected by initial pH values and contact time was analyzed, and surface characteristics of platanus leaves and uranium removal mechanism were investigated with the help of SEM, FTIR, XRD and XRF. The adsorption process fits pseudo-second-order kinetic model and Freundlich isotherm equation, and the maximum adsorption capacity for uranium was 19.

[Comparative study on therapeutic effects of acupuncture, Chinese herbs and Western medicine on nervous tinnitus].

Objective: To compare the clinical therapeutic effects of acupuncture at Jiaji (EX-B 2), Chinese herbs and western medicine on nervous tinnitus.

Methods: Ninety cases were randomly divided into 3 groups, 30 cases in each group. The acupuncture group were treated with acupuncture at cervical Jiaji (EX-B 2), 20 min each session, once a day, 10 sessions constituting one course; the Chinese herbs group with modified Buzhong Yiqi Decoction (decocted in water), one dose each day, 10 doses constituting one course; the western medicine group with bandazol, Dextran 40, Danshen tablet, and vitamin B12, 10 days constituting one course.

[Cloning and expression in Escherichia coli of secondary lymphoid-tissue chemokine (SLC) gene].

Secondary lymphoid-tissue chemokine (SLC) is a type of CC chemokine identified by searching the Expressed Sequence Tag (EST) database. The full-length SLC gene was synthesized based on human SLC sequence using SOE-PCR. The sequenced SLC gene was cloned into expression vector pTMF and pALM, which used to transform Escherichia coli.

Soluble expression of recombinant human secondary lymphoid chemokine (SLC) in E. coli and research on its in vitro and in vivo bioactivity.

Secondary lymphoid tissue chemokine (SLC) is a CC chemokine that plays an important role in leukocytes homing to lymphoid tissues. The ability of SLC to co-localize both T cells and dendritic cells formed the rationale to evaluate its utility in cancer immunotherapy. The in vivo antitumor effect of murine SLC (mSLC) has been well documented, but little is known about that of human SLC (hSLC).