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1.
ACS Appl Mater Interfaces ; 9(25): 21438-21446, 2017 Jun 28.
Article in English | MEDLINE | ID: mdl-28585814

ABSTRACT

A multifunctional carbazolic porous framework (Cz-TPM), with a tetrahedral core, has been synthesized by FeCl3 oxidative coupling polymerization. The Brunauer-Emmett-Teller surface area of the obtained polymers reaches 713.2 m2 g-1. Gas adsorption isotherms show that Cz-TPM exhibits large carbon dioxide (97.9 mg g-1, 9.8 wt %, 273 K, and 1 bar) and hydrogen uptake capacities (149.3 cm3 g-1, 1.34 wt %, 77 K, and 1 bar). Furthermore, Cz-TPM has been found to display tandem visual detection of iodide and mercury, respectively. The Cz-TPM dispersion turns to yellow in the presence of iodide salts and subsequently changes to nearly colorless on addition of Hg2+ salts that could be easily observed by the naked eye. Cz-TPM can detect I- via "turn off" fluorescence quenching, and then the in situ generated Cz-TPM@I complexes can recognize Hg2+ ions via "turn on" fluorescence recovery. More importantly, Cz-TPM is stable over common solvents and can be easily recovered by excessive water washing and centrifugation for further repeated use. As far as we know, carbazolic porous organic frameworks enabling detection of I- and Hg2+ have not been reported.

2.
National Journal of Andrology ; (12): 419-422, 2014.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-309696

ABSTRACT

<p><b>OBJECTIVE</b>To explore the influence of the DNA repair gene ERCC2 single nucleotide polymorphisms (SNPs) rs13181, rs1618536, and rs1799793 on male idiopathic infertility in Ningxia, China.</p><p><b>METHODS</b>Using MassArray, we conducted a case-control study and genotyped three ERCC2 SNPs rs13181, rs1618536, and rs1799793 for 351 males (aged 31.0 +/- 4.2 years) with idiopathic infertility and another 327 normal fertile men (aged 33.0 +/- 5.9 years) as controls.</p><p><b>RESULTS</b>The ERCC2 AnyG-anyA-anyA genotypes were significantly associated with an increased risk of idiopathic infertility (OR 0.414, 95% CI 0.176 - 0.970), while the three single ERCC2 SNPs rs13181, rs1618536, and rs1799793 showed no significant differences between the cases and controls (P > 0.05).</p><p><b>CONCLUSION</b>The ERCC2 SNPs rs13181, rs1618536, and rs1799793 play a role of interaction in male idiopathic infertility in Ningxia, contributing to the risk of the disease.</p>


Subject(s)
Adult , Humans , Male , Case-Control Studies , China , DNA Repair , Genotype , Infertility, Male , Genetics , Polymorphism, Single Nucleotide , Xeroderma Pigmentosum Group D Protein , Genetics
3.
National Journal of Andrology ; (12): 881-885, 2012.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-256990

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the association between the digit length ratio (DLR) and male fertility in Ningxia.</p><p><b>METHODS</b>Using an electronic sliding caliper, we measured the lengths of the index finger (D2), middle finger (D3), ring finger (D4) and little finger (D5) of both the right and left hand of 136 infertile males in Ningxia, 45 of them with normal and the other 91 with abnormal semen, including 28 cases of oligozoospermia, 10 cases of obstructive azoospermia (OA) and 53 cases of nonobstructive azoospermia (NOA). We calculated the DLRs of D2:D3, D2:D4, D2:D5, D3:D4, D3:D5 and D4:D5 and compared them among different groups.</p><p><b>RESULTS</b>The mean values of FLR presented a pattern of D2:D3 < D2:D4 < D3:D4 < D2:D5 < D4:D5 in the infertile males. DLRs of D2:D3, D2:D4, D2:D5, D3:D5 and D4:D5 of the right hand were significantly higher in the abnormal than in the normal semen group (t = 2.56, 2.48, 3.57, 2.85, 2.53; P < 0.05); those of D2:D3, D2:D4, D2:D5 and D4:D5 of the right hand presented a pattern of NOA > oligozoospermia > OA > normal semen group, while that of D3:D5 presented a pattern of NOA > OA > oligozoospermia > normal semen group. The NOA group showed a significantly higher DLR of the right hand than the normal semen group in D2:D3, D2:D4, D3:D5 and D4:D5, the oligozoospermia group in D2:D4, D3:D5 and D4:D5, and the OA group in D2:D3 (P < 0.05). The D4:D5 DLR of the right hand was remarkably higher in the Han than in the Hui ethnic group (t = 2.01, P < 0.05).</p><p><b>CONCLUSION</b>Higher DLRs of D2:D3, D2:D4, D2:D5, D3:D5 and D4:D5 of the right hand were associated with lower fertility in infertile males in Ningxia. And the D4:D5 FLRs of the right hand may be different between Hui and Han infertile men in Ningxia.</p>


Subject(s)
Adult , Humans , Male , Young Adult , China , Epidemiology , Fertility , Fingers , Hand , Infertility, Male , Epidemiology
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