1.Fatty acid metabolism and ovarian cancer
Tingting FAN ; Danni DING ; Zixue ZHAO ; Yang YU ; Fengjuan HAN
Practical Oncology Journal 2023;37(5):429-433
Ovarian cancer is a common malignant tumor in the female reproductive system,and its pathogenesis and regulato-ry mechanisms are extremely complex and still unclear.Fatty acid metabolism mainly involves the processes of fatty acid uptake,syn-thesis,and oxidation.Previous studies have shown that fatty acid metabolism plays a unique role in the occurrence and development of ovarian cancer.Therefore,this article reviews existing literature and delves into the correlation between fatty acid metabolism and ovarian cancer,aiming to provide new perspectives and reflections on the mechanism of fatty acid metabolism and targeted treatment of ovarian cancer.
2.Generation and epitope mapping of a monoclonal antibody against nucleoprotein of Ebola virus.
Xiaodu WANG ; Yang LIU ; Haoting WANG ; Zixue SHI ; Fanfan ZHAO ; Jianchao WEI ; Donghua SHAO ; Zhiyong MA
Chinese Journal of Biotechnology 2012;28(11):1317-1327
Ebola virus (EBOV) causes highly lethal hemorrhagic fever in humans and nonhuman primates and has a significant impact on public health. The nucleoprotein (NP) of EBOV (EBOV-NP) plays a central role in virus replication and has been used as a target molecule for disease diagnosis. In this study, we generated a monoclonal antibody (MAb) against EBOV-NP and mapped the epitope motif required for recognition by the MAb. The MAb generated via immunization of mice with prokaryotically expressed recombinant NP of the Zaire Ebola virus (ZEBOV-NP) was specific to ZEBOV-NP and able to recognize ZEBOV-NP expressed in prokaryotic and eukaryotic cells. The MAb cross-reacted with the NP of the Reston Ebola virus (REBOV), the Cote-d'Ivoire Ebola virus (CIEBOV) and the Bundibugyo Ebola virus (BEBOV) but not with the NP of the Sudan Ebola virus (SEBOV) or the Marburg virus (MARV). The minimal epitope sequence required for recognition by the MAb was the motif PPLESD, which is located between amino acid residues 583 and 588 at the C-terminus of ZEBOV-NP and well conserved among all 16 strains of ZEBOV, CIEBOV and BEBOV deposited in GenBank. The epitope motif is conserved in four out of five strains of REBOV.
Animals
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Antibodies, Monoclonal
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immunology
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Ebolavirus
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chemistry
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immunology
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Epitope Mapping
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methods
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Escherichia coli
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genetics
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metabolism
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Mice
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Mice, Inbred BALB C
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Nucleoproteins
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immunology
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Recombinant Proteins
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biosynthesis
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genetics
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immunology
3.Clinical Observation on Herb-partitioned Moxibustion on Navel Combined with Yishen Tongluo Prescription in Treatment of Infertility Induced by Idiopathic Asthenozoospermia with Kidney-Yang Deficiency and Collateral Obstruction Syndrome
Fang ZHANG ; Peipei ZHAO ; Zixue SUN ; Jianshe CHEN ; Xiang CHEN ; Pengchao LI
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(4):97-103
ObjectiveTo observe the clinical efficacy of herb-partitioned moxibustion on the navel combined with Yishen Tongluo prescription in the treatment of infertility induced by idiopathic asthenozoospermia (iAZS) with kidney-Yang deficiency and collateral obstruction syndrome and its effect on sperm DNA damage and superoxide dismutase (SOD) in the seminal plasma. MethodsA total of 112 eligible patients who met the inclusion criteria were randomly divided into an observation group (56 cases) and a control group (56 cases). The patients in the observation group were treated with herb-partitioned moxibustion on the navel combined with Yishen Tongluo prescription,while those in the control group received levocarnitine oral liquid. The primary observation indicators included spouse pregnancy rate,progressive motility (PR),and total sperm motility,and the secondary observation indicators included sperm DNA fragmentation index (DFI),SOD in the seminal plasma, and improvement of TCM syndromes. The treatment cycle was 12 weeks. Before and after treatment,the PR,total sperm motility,sperm DFI,SOD in the seminal plasma, and TCM syndrome scores were recorded. The patients were followed up for 12 weeks and the pregnancy status of spouses within 24 weeks (half a year) was recorded. The clinical efficacy of the two groups was evaluated. ResultThe pregnancy rate of spouses in the observation group was 15.69% (8/51), higher than 3.85% (2/52) in the control group (χ2=4.118,P<0.05). The total effective rate of the observation group was 88.24%(45/51), superior to 69.23% (36/52)in the control group (Z=-3.402,P<0.01). After treatment, PR, total sperm motility,sperm DFI, SOD in the seminal plasma, and TCM syndromes of the two groups were improved compared with those before treatment (P<0.05), and the observation group was superior to the control group (P<0.05). ConclusionHerb-partitioned moxibustion on the navel combined with Yishen Tongluo prescription in the treatment of iAZS-induced infertility patients with kidney-Yang deficiency and collateral obstruction syndrome can increase PR,total sperm motility, and SOD level in the seminal plasma, reduce sperm DFI,improve the TCM symptoms of patients, and improve the pregnancy rate of spouses. The mechanism may be attributed to the fact that this treatment can increase the SOD level in the seminal plasma of patients,enhance the body's antioxidant function,protect sperm from oxidative stress damage,and reduce sperm DFI.