1.Diagnostic Value of L-homocysteic Acid and Lysophosphatidylcholine as Markers of Ovarian Cancer
Lu ZHOU ; Jieqiang Lü ; Le WU
Journal of Medical Research 2015;44(4):114-116,119
Objective To study whether L-cysteine and lysolecithin (16:0) could be as a serum markers in the detection of OVC for overcoming the OVC defects of early detection .Methods Totally 142 cases of healthy check -up patients ( control group ) 100 cases from First Affiliated Hospital of Wenzhou Medical University in January 2012 to January 2014 were extracted patient specimens .These pa-tient specimens were used to detect by MALDI -TOF-MS mass spectrometer and obtain the peak m/z by the method of principal compo-nent analysis for screening expression difference between the two groups in the metabolites and the correlation between metabolites and pathological grade.Results The most difference substance between two groups were 184.05 and 496.30m/z which identified as LPC (16:0) and HCA;On HCA average level and detection rate , OVC group was significantly higher than control (P<0.01); On 184.05 and 496.30m/z peak area, control group was significantly higher than OVC group (P<0.01);HCA positively was correlated with patho-logic grade (P<0.05);184.05 and 496.30 m/z peak area were negative correlation with pathologic grade (P<0.05).Conclusion L-cysteine and lysolecithin (16:0) mechanism in the pathogenesis of OVC is unclear , but it can be used for the detection of serum OVC markers.
2.The adjunctive action of enantone in chocolate cyst after laparoscopic surgery
Jing HE ; Jieqiang LU ; Xiaohong HOU ;
Cancer Research and Clinic 2001;0(04):-
Objective To study the action of enantone in chocolate cyst after laparoscopic surgery. Methods To devide the 76 patients into two groups, study group(50 patients, additional enantone after laparoscopic surgery) and the control group (26 patients, only laparoscopic surgery), to analyse their recurrence rate and pregnancy rate. Results The recurrence rate of study group was obviously lower than control group. In the 48 patients with infertility, the pregnancy rate of study group was higher than control group. Conclusions In chocolate cyst after laparoscopic surgery, enantone can decrease the recurrence rate and increase pregnancy rate.
3.The effect of HPV coinfections on the risk of cervical cancer and precancerosis
Wei LI ; Jieqiang LYU ; Yi LU
Chinese Journal of Experimental and Clinical Virology 2015;29(1):41-43
Objective To study the effect of HPV coinfections on the risk of cervical cancer and precancerosis.Methods We randomly selected the female patients which did cervical pathology and not undergo any treatment in recent five years; PCR was used to detect HPV genotyping.Results A total of 755 patients (56.98%) were infected with HPV,154 in negative for intraepithelial lesion or malignancy (37.84%),152 in low-grade squamous intraepithelial lesion (47.64%),270 in high-grade squamous intraepithelial lesion (64.28%) and all of cervical cancer patients were infected (100%) ; HPV16 type is most common,followed by type 18,68 and 58.There were 423 patients with mixed infections,and HPV16 and HPV68 type mixed infections had a synergistic effect,can significantly improved the high-grade intraepithelial neoplasia and cervical cancer incidence.Conclusion HPV mixed infection is closely related to the cervical cancer,and HPV16 and HPV68 type mixed infections can significantly improved cervical cancer and precancerosis incidence.
4.CYP19 gene variant confers susceptibility to endometriosis-associated infertility in Chinese women.
Ledan WANG ; Xiaosheng LU ; Danhan WANG ; Wanglei QU ; Wenju LI ; Xiaowen XU ; Qiusui HUANG ; Xueying HAN ; Jieqiang LV
Experimental & Molecular Medicine 2014;46(6):e103-
An aromatase encoded by the CYP19 gene catalyzes the final step in the biosynthesis of estrogens, which is related to endometriosis development. To assess the association of CYP19 gene polymorphisms with the risks of endometriosis, chocolate cysts and endometriosis-related infertility, a case-control study was conducted in Chinese Han women by recruiting 225 healthy control females, 146 patients with endometriosis, 94 endometriosis women with chocolate cyst and 65 women with infertility resulting from endometriosis, as diagnosed by both pathological and laparoscopic findings. Individual genotypes at rs2236722:T>C, rs700518:A>G, rs10046:T>C and [TTTA]n polymorphisms were identified. Allelic and genotypic frequencies were compared between the control group and case groups by chi-square analysis. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were determined by logistic regression analysis to predict the association of CYP19 gene polymorphisms with the risk of endometriosis, the related chocolate cysts and infertility. The genotype distributions of the tested CYP19 gene polymorphisms were not significantly different between the healthy control group and the endometriosis/endometriosis with the chocolate cyst group. However, the CYP19 rs700518AA genotype was significantly associated with an increased risk of endometriosis-related infertility (55.4% in the infertility group vs 25.3% in the control group, P<0.001; OR (95% CI): 3.66 (2.06-6.50)) under the recessive form of the A allele. Therefore, we concluded that in Chinese Han females CYP19 gene polymorphisms are not associated with susceptibility to endometriosis or chocolate cysts, whereas CYP19 rs700518AA genotype confers genetic susceptibility to endometriosis-related infertility.
Adult
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Aromatase/*genetics
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Case-Control Studies
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China
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Endometriosis/complications/*genetics
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Female
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Genetic Predisposition to Disease
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Humans
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Infertility, Female/complications/*genetics
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Middle Aged
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*Polymorphism, Single Nucleotide
5.Pharmacokinetics,distribution,and excretion of sodium oligomannate,a recently approved anti-Alzheimer's disease drug in China
Jiaojiao LU ; Qiongqun PAN ; Jieqiang ZHOU ; Yan WENG ; Kaili CHEN ; Lv SHI ; Guanxiu ZHU ; Chunlin CHEN ; Liang LI ; Meiyu GENG ; Zhenqing ZHANG
Journal of Pharmaceutical Analysis 2022;12(1):145-155
The National Medical Products Administration has authorized sodium oligomannate for treating mild-to-moderate Alzheimer's disease.In this study,an LC-MS/MS method was developed and validated to quantitate sodium oligomannate in different biomatrices.The plasma pharmacokinetics,tissue distri-bution,and excretion of sodium oligomannate in Sprague-Dawley rats and beagle dogs were system-atically investigated.Despite its complicated structural composition,the absorption,distribution,metabolism,and excretion profiles of the oligosaccharides in sodium oligomannate of different sizes and terminal derivatives were indiscriminate.Sodium oligomannate mainly crossed the gastrointestinal epithelium through paracellular transport following oral administration,with very low oral bioavail-ability in rats(0.6%-1.6%)and dogs(4.5%-9.3%).Absorbed sodium oligomannate mainly resided in circulating body fluids in free form with minimal distribution into erythrocytes and major tissues.So-dium oligomannate could penetrate the blood-cerebrospinal fluid(CSF)barrier of rats,showing a con-stant area under the concentration-time curve ratio(CSF/plasma)of approximately 5%.The cumulative urinary excretion of sodium oligomannate was commensurate with its oral bioavailability,supporting that excretion was predominantly renal,whereas no obvious biliary secretion was observed following a single oral dose to bile duct-cannulated rats.Moreover,only 33.7%(male)and 26.3%(female)of the oral dose were recovered in the rat excreta within 96 h following a single oral administration,suggesting that the intestinal flora may have ingested a portion of unabsorbed sodium oligomannate as a nutrient.