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Wang L, Li T, Cao WX, Zhao JY, Xu XH, Chai JP, Zhang JX, Liu J, Wang FC. Acupoint application therapy alleviates pain by regulating immune function through inhibiting TLR4/MyD88/NF-κB p65 signaling in a primary dysmenorrhea rat model. Zhen Ci Yan Jiu 2024; 49:37-46. [PMID: 38239137 DOI: 10.13702/j.1000-0607.20230709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
OBJECTIVES To investigate the effects of graphene-based warm uterus acupoint paste on uterine Toll-like receptor 4 (TLR4)/myeloid differentiation factor 88 (MyD88)/nuclear transcription factor-kappa B p65 (NF-κB p65) signaling pathway and Th1/Th2 immune balance in primary dysmenorrhea ( PD ) model rats, so as to reveal its immunological mechanisms of relieving dysmenorrhea. METHODS Thirty SD female rats were randomly divided into 3 groups:normal group, model group and acupoint paste group, with 10 rats in each group. PD rat model was established by subcutaneous injection of estradiol benzoate for 10 consecutive days. At the same time of modeling, graphene-based warm uterus acupoint paste was applied to the acupoints of "Guanyuan" (CV4), bilateral "Zigong" (EX-CA1) and "Sanyinjiao" (SP6) of rats in the acupoint paste group. The application was continuously applied once daily for 10 d, 5 h each time. On the 11th day, oxytocin was injected intraperitoneally to observe the writhing latency, writhing times within 30 min and writhing score of rats in each group. The spleen and thymus indexes were calculated. The pathological changes of spleen and thymus tissue were observed after HE staining. The contents of serum immunoglobulin (Ig) A, IgG, tumor necrosis factor-α (TNF-α), interleukin (IL)-2, interferon-γ (IFN-γ), IL-4 and IL-10 were detected by ELISA . The protein and mRNA expression levels of TLR4, MyD88 and NF-κB p65 in rat uterine tissue were detected by Western blot and real-time quantitative PCR, respectively. RESULTS Compared with the normal group, the writhing times and writhing scores within 30 min of rats in the model group were significantly increased(P<0.001), and the rats showed writhing reaction (P<0.01). The spleen index and thymus index were significantly decreased(P<0.01, P<0.05). The spleen and thymus had obvious pathological changes. The contents of IgA, IgG, TNF-α, IL-2 and IFN-γ in serum were significantly increased, while the contents of serum IL-4 and IL-10 were significantly decreased(P<0.001, P<0.01). The expression levels of TLR4, MyD88, NF-κB p65 protein and corresponding mRNA in uterine tissue were significantly increased(P<0.001). Following intervention, compared with the model group, the writhing latency time of rats in the acupoint paste group was prolonged, and the writhing times and writhing scores within 30 min were significantly decreased (P<0.001). The spleen index and thymus index were significantly increased(P<0.01, P<0.05). The pathological changes of spleen and thymus were improved. The contents of serum IgA, IgG, TNF-α, IL-2 and IFN-γ were significantly decreased, while the contents of IL-4 and IL-10 were significantly increased(P<0.001, P<0.05, P<0.01). The expression of TLR4, MyD88, NF-κB p65 protein and the corresponding mRNA levels in uterine tissue were decreased(P<0.001, P<0.01). CONCLUSIONS Graphene-based warm uterus acupoint paste can regulate the immune balance of Th1/ Th2 by regulating TLR4/ MyD88/ NF-κB p65 signaling pathway, repair the pathological damage of immune tissue, improve immune function, and effectively relieve the pain symptoms of PD rats.
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Affiliation(s)
- Lin Wang
- College of Acupuncture-moribustion and Tuina, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Tie Li
- College of Acupuncture-moribustion and Tuina, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Wen-Xuan Cao
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117
| | - Jin-Ying Zhao
- College of Acupuncture-moribustion and Tuina, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Xiao-Hong Xu
- College of Acupuncture-moribustion and Tuina, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Jia-Peng Chai
- College of Acupuncture-moribustion and Tuina, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Jia-Xun Zhang
- College of Acupuncture-moribustion and Tuina, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Jia Liu
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117
| | - Fu-Chun Wang
- College of Acupuncture-moribustion and Tuina, Changchun University of Chinese Medicine, Changchun 130117, China.
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Cao WX, Zhu L, He Y, Wang R, Liu M, Ouyang Q, Xiao Q. Copper-Catalyzed Aryne Insertion into the Carbon-Iodine Bond of Heteroaryl Iodides. Angew Chem Int Ed Engl 2023; 62:e202305146. [PMID: 37571857 DOI: 10.1002/anie.202305146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 08/13/2023]
Abstract
Aryne insertions into the carbon-iodine bond of heteroaryl iodides has been achieved for the first time. This novel reaction provides an efficient pathway for the synthesis of valuable building blocks 2-iodoheterobiaryls from heteroaryl iodides and o-silylaryl triflates in excellent regioselectivity. The copper(I) catalyst, which bears a N-heterocyclic carbene (NHC) ligand, is essential to accomplish the reaction. Control reactions and DFT calculations indicate that the coordination of copper, as a Lewis acid, with nitrogen atoms of heteroaryl iodides mediates the insertion of arynes into heteroaryl carbon-iodine bonds.
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Affiliation(s)
- Wen-Xuan Cao
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Lei Zhu
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Yiyi He
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Run Wang
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Ming Liu
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Qin Ouyang
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
| | - Qing Xiao
- School of Pharmacy, Third Military Medical University, Gao Tanyan Avenue, Chongqing, 400038, China
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Zhai DD, Li WJ, Liu HZ, Cao WX, Gao X. Genetic diversity and temporal changes of an endemic cyprinid fish species, Ancherythroculter nigrocauda, from the upper reaches of Yangtze River. Zool Res 2019; 40:427-438. [PMID: 31111694 PMCID: PMC6755114 DOI: 10.24272/j.issn.2095-8137.2019.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 04/16/2019] [Indexed: 11/07/2022] Open
Abstract
Small populations with low genetic diversity are prone to extinction. Knowledge on the genetic diversity and structure of small populations and their genetic response to anthropogenic effects are of critical importance for conservation management. In this study, samples of Ancherythroculter nigrocauda, an endemic cyprinid fish from the upper reaches of Yangtze River, were collected from five sites to analyze their genetic diversity and population structure using mitochondrial cytochrome b gene and 14 microsatellite loci. Haplotype diversity, nucleotide diversity, and expected heterozygosity indicated that the A. nigrocauda populations had low genetic diversity, and decreased heavily from 2001 to 2016. Significant genetic differentiation was found among different populations in the cyt b gene and SSR markers based on the genetic differentiation index (F ST), whereas no differentiation was found in 2001. Haplotype genealogy showed that eight out of 15 haplotypes were private to one population. The SSR STRUCTURE analysis showed that there were four genetic clusters in the A. nigrocauda samples, with each population forming a single cluster, except for the Chishui River (CSR) and Mudong River (MDR) populations, which formed a common cluster. Therefore, loss of genetic diversity and increased genetic differentiation were found in the A. nigrocauda populations, which could be attributed to dam construction, overfishing, and water pollution in the upper Yangtze River. It is therefore recommended that the government should ban fishing, control water pollution, increase river connectivity, and establish artificial breeding and stocking.
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Affiliation(s)
- Dong-Dong Zhai
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan Hubei 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wen-Jing Li
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan Hubei 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huan-Zhang Liu
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan Hubei 430072, China
| | - Wen-Xuan Cao
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan Hubei 430072, China
| | - Xin Gao
- Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan Hubei 430072, China; E-mail:
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Zhang MJ, Zhou J, Cao W, Feng ZQ, Guo JW, Han QJ, Cao WX, Guan X, Li YY, Qin J, Wang Y, Zhang HJ, Li B. Synthesis, Anti-inflammatory Activities and Mechanisms of 3,5- dihydroxycinnamic Acid Derivatives. Antiinflamm Antiallergy Agents Med Chem 2016; 14:183-98. [PMID: 26712249 DOI: 10.2174/1871523015666151229101438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 12/20/2015] [Accepted: 12/28/2015] [Indexed: 11/22/2022]
Abstract
BACKGROUND 3,4-dihydroxycinnamic acid and its derivatives exhibit numerous biologic activities. Such activities have not previously been reported for 3,5-dihydroxycinnamic acid derivatives. In this study, ten derivatives of 3,5- dihydroxycinnamic acid were synthesized and their anti-inflammatory activities were tested in 12-O-tetradecanoylphorbol 13-acetate-induced mouse ear edema. Molecular biological studies have shed lights on their anti-inflammatory mechanism. METHODS Anti-inflammatory activities of ten new synthesized derivatives of 3,5-dihydroxycinnamic acid were tested in 12-O-tetradecanoylphorbol 13-acetate-induced mouse ear edema, and their anti-inflammatory mechanism was studied by ELISA, real-time RT-PCR, MPO assay and AA-induced mouse ear edema. RESULTS Compound 7 showed a pronounced anti-inflammatory effect and the inhibition rate was 65.6% at a dose of 1.6mg/ear. This compound acted by reducing mRNA and protein synthesis of tumor necrosis factor-α, interleukins 1β and 6, and also by decreasing the levels of activated neutrophil infiltrates. Furthermore, compound 7 significantly suppressed arachidonic acid-induced edema as well. Cell-based assays showed that compound 7 inhibited the production of cyclooxygenase- 2-catalyzed prostaglandin E2 from lipopolysaccharide-treated RAW 264.7 cells, and also inhibited 5-lipoxygenase production from A23187-treated RBL-1 cells, and consequently reduced leukotriene B4 production. CONCLUSION This investigation revealed that some of the derivatives of 3,5-dihydroxycinnamic acid exhibit a more pronounced anti-inflammatory effect than 3,4-dihydroxycinnamic acid. Therefore, 3,5-dihydroxycinnamic acid derivatives, especially compound 7, represent potential value for antiinflammatory drug development.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Hui-Jing Zhang
- Department of Pharmaceutical Analysis and Analytical Chemistry, College of Pharmacy, Third Military Medical University, Chongqing 400038, China.
| | - Bin Li
- Chongqing Academy of Science & Technology, Chongqing 400038, China.
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Ji Y, Jin HH, Wang MD, Cao WX, Bao JL. Retraction RETRACTION of "Methylation of the RASSFIA promoter in breast cancer" by Y. Ji, H.H. Jin, M.D. Wang, W.X. Cao, J.L. Bao - Genet. Mol. Res. 15 (2): gmr.15028261 (2016) - DOI: 10.4238/gmr.15028261. Genet Mol Res 2016; 15:gmr82611_retraction. [PMID: 27808395 DOI: 10.4238/gmr.150482611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The retracted article is: Ji Y, Jin HH, Wang MD, Cao WX, et al. (2016). Methylation of the RASSFIA promoter in breast cancer. Genet. Mol. Res. 15: gmr.15028261. There are significant parts of this article (particularly, in the discussion section) that are copied from "Methylation of HIN-1, RASSF1A, RIL and CDH13 in breast cancer is associated with clinical characteristics, but only RASSF1A methylation is associated with outcome", by Jia Xu, Priya B Shetty, Weiwei Feng, Carol Chenault, Robert C Bast Jr, Jean-Pierre J Issa, Susan G Hilsenbeck and Yinhua Yu, published in BMC Cancer 2012; 12: 243. DOI: 10.1186/1471-2407-12-243. The first paragraphs of both discussions are identical. This is concerning. The abstract and introduction sections have much of their text plagiarized. Overall, there is high plagiarism detected. The GMR editorial staff was alerted and after a thorough investigation, we have strong reason to believe that the peer review process was failure and, after review and contacting the authors, the editors of Genetics and Molecular Research decided to retract the article in accordance with the recommendations of the Committee on Publication Ethics (COPE). The authors and their institutions were advised of this serious breach of ethics.
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Affiliation(s)
- Y Ji
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
| | - H H Jin
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
| | - M D Wang
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
| | - W X Cao
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
| | - J L Bao
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
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Abstract
Tumor suppressor genes are the key targets of hypermethylation in breast cancer and may therefore lead to malignancy by deregulation of cell growth and division. Our previous pilot study with pairs of malignant and normal breast tissues identified a correlation between RASSFIA gene methylation and breast cancer. To determine the relationship between RASSFIA methylation and breast cancer, we conducted a larger study. We took samples from 108 patients with breast cancer, 28 patients with benign breast tumors, and 33 subjects with normal breast tissues at the Second Affiliated Hospital of Nanjing Medical University at Wuxi between July 2013 and September 2015. We used the samples to investigate methylation levels of the RASSF1A gene for associations with breast cancer. Quantitative real-time polymerase chain reaction (PCR) and methylation-specific PCR were used to investigate the levels of RASSF1A mRNA expression and RASSF1A methylation, respectively. RASSFIA was not expressed in 22 of the 108 breast cancer tissue samples (20.37%), and there was no statistically significant difference (P > 0.05); however, RASSFIA expression was significantly lower than that in the normal breast tissue samples (P < 0.05). Moreover, the methylation rate of the RASSFIA gene promoter was significantly higher in the breast cancer tissues (64.81%) than in the normal breast tissues (18.18%) and benign breast tumors (17.86%) (P < 0.05). High methylation of the RASSF1A gene promoter was an important reason for its downregulation, and the gene played a critical regulated role in the incidence and development of breast cancer.
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Affiliation(s)
- Y Ji
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
| | - H H Jin
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
| | - M D Wang
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
| | - W X Cao
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
| | - J L Bao
- Nanjing Medical University Affiliated to Wuxi Second Hospital, Wuxi, Jiangsu, China
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Affiliation(s)
- Wei Jiang
- Key Laboratory of Biodiversity and Conservation of Aquatic Organisms, Institute of Hydrobiology, Chinese Academy of Sciences, 7th Southern Road of East Lake, Wuhan, Hubei 430072, China
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Ye SW, Li ZJ, Cao WX. [Species composition, diversity and density of small fishes in two different habitats in Niushan Lake]. Ying Yong Sheng Tai Xue Bao 2007; 18:1589-95. [PMID: 17886656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
This paper studied the spatial distribution of small fishes in a shallow macrophytic lake, Niushan Lake in spring 2003, and its relations with habitat heterogeneity. Based on the macrophyte cover condition, distance from lake shore and water depth, two representative habitat types in the lake were selected. Habitat A was near the shore with dense submersed macrophyte, while habitat B was far from the shore with sparse submersed macrophyte. Small fishes were sampled quantitatively by block net (180 m2), and their densities within the net area were estimated by multiple mark-recapture or Zippin's removal method. The results showed that there were some differences in species composition, biodiversity measurement, and estimated density of small fishes between the two habitats: 1) the catches in habitat A consisted of 14 small fish species from 5 families, among which, benthopelagic species Rhodeus ocellatus, Paracheilognathus imberbis and Pseudorasbora parva were considered as dominant species, while those in habitat B consisted of 9 small fish species from 3 families, among which, bottom species Rhinogobius giurinus and Micropercops swinhonis were dominant; 2) the Bray-Curtis index between the two small fish communities was 0.222, reflecting their low structure similarity, and no significant difference was observed between their rank/ abundance distributions, both of which belonged to log series distribution; 3) the total density of 9 major species in habitat A was 8.71 ind x m(-2), while that of 5 major species in habitat B was only 3.54 ind x m(-2). The fact that the spatial distribution of the small fishes differed with habitats might be related to their habitat need for escaping predators, feeding, and breeding, and thus, aquatic macrophyte habitat should be of significance in the rational exploitation of small fish resources as well as the conservation of fish resource diversity.
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Affiliation(s)
- Shao-Wen Ye
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
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Pan Y, Cao WX, Xu LP, Yin SR, Bai L. [Process, mechanism, and research method of fish invasion]. Ying Yong Sheng Tai Xue Bao 2007; 18:687-92. [PMID: 17552214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Fish invasion has become a serious environmental and economic damage, and obtained a priority concern by the conservation ichthyologists and land managers. A better understanding of the invasive mechanisms is of significance in developing ecological theories and in controlling exotic pests. In this paper, the progress in studying the mechanisms of fish invasion was reviewed, involving the biological characteristics of exotic fish, their adaptive evolution, interactions among exotic and indigenous fish, and relationships between species diversity and community resistance to invasion, etc. The study of invasive process and the progress of research methods were discussed.
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Affiliation(s)
- Yong Pan
- Institute of Hydrobiology, Chinese Academy of Sciences, Wu- han 430072, China.
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Abstract
AIM: To investigate the influence of L-methionine-deprived total parenteral nutrition with 5-FU on gastric cancer and host metabolism.
METHODS: N-methyl-N’-nitro-nitrosoguanidine (MNNG) induced gastric cancer rats were randomly divided into four groups: Met-containing TPN group (n = 11), Met-deprived TPN group (n = 12), Met-containing TPN+5-FU group (n = 11) and Met-deprived TPN+5-FU group (n = 12). Five rats in each group were sacrificed after 7 d of treatment and the samples were taken for examination. The remaining rats in each group were then fed separately with normal diet after the treatment until death, the life span was noted.
RESULTS: The tumors were enlarged in Met-containing group and shrank in Met-deprived group markedly after the treatment. The DNA index (DI) of tumor cells and the body weight (BW) of rats had no significant change in the two groups, however, the ratio of tumor cells’ S phase was increased. The ratio of G2M phase went up in Met-containing group, but down in Met-deprived group. In the other two groups that 5-FU was added, the BW of rats, and the diameter of tumors, the DI of tumor cells, the S and G2M phase ratio of tumor cells were all decreased, particularly in Met-deprived plus 5-FU group. Pathological examination revealed that the necrotic foci of the tumor tissue increased after Met-deprived TPN treatment, and the nucleoli of tumor cells enlarged. In -MetTPN+5-FU group, severe nuclear damage was also found by karyopyknosis and karyorrhexis, meanwhile there was slight degeneration in some liver and kidney cells. The serum free Met and Cysteine decreased markedly (P < 0.001), while other amino acids, such as serum free serine and glutamine increased significantly (P < 0.005). All the rats died of multiple organ failure caused by cancer metastasis. The average survival time was 18.6 d in Met-containing TPN group, 31 d in Met-deprived TPN group, 27.5 d in Met-containing TPN+5-FU group, and 43 d in Met-deprived TPN+5-FU group (P < 0.05).
CONCLUSION: Met-deprived TPN causes methionine starvation of tumor cells, and can enhance the anti-tumor effect of 5-FU and prolong the life span of gastric cancer-bearing rats.
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Affiliation(s)
- H B Xiao
- Department of Surgery, Affiliated Railway Hospital, Tongji University, Shanghai 200072, China.
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Cao WX, Xiao HB, Yin HR. [Effects of preoperative parenteral nutritional support with chemotherapy on tumor cell kinetics in gastric cancer patients]. Zhonghua Zhong Liu Za Zhi 1994; 16:137-40. [PMID: 7924865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The purpose of this study is to elucidate the effect of preoperative parenteral nutritional support (PNS) plus chemotherapy on tumor cell kinetics. 19 advanced gastric cancer (AGC) patients were divided into the following groups: group A (n = 7): in addition to their oral intake, received a PNS for 5 days, which yielded 117 Kj.kg-1.d-1 of non-protein calories and 0.15g.kg-1.d-1 of nitrogen. Group B(n = 6): were infused with 5-Fu at 8-10mg.kg-1.d-1 for 5 days and mitomycin C at 6-8mg.d-1 on the first and fifth day. Group C (n = 6): received a PNS plus 5-Fu with MMC as group A and B did. Specimens of gastric cancer and normal gastric mucosa were taken endoscopically before and after PNS. All specimens were studied by flow cytometry for cell cycle analysis. The results showed that the frequency of cells in S and proliferative phases were significantly increased after PNS (P < 0.01, P < 0.001), but decreased after PNS+chemotherapy (P < 0.05, P < 0.025). No significant change after single chemotherapy was observed. In conclusion, PNS might enhance the effect of chemotherapy in AGC patients, probably, by stimulation of tumor cell kinetics.
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Affiliation(s)
- W X Cao
- Department of Surgery, Ruijin Hospital, Shanghai Second Medical University
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12
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Cao WX. [Effects of parenteral nutrition on cell cycle kinetics in gastric cancer patients]. Zhonghua Zhong Liu Za Zhi 1992; 14:418-20. [PMID: 1304473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Studies were made on tumor growth changes by 1-week supplementary parenteral nutrition in undernourished advanced gastric cancer patients. Biopsy of the normal mucosa and cancerous tissue were taken through endoscope before and one week after parenteral nutrition and at the time of operation. Percentage of cells in various phases were analyzed by flow cytometry. The frequency of S and proliferative phases were markedly increased (P < 0.05) in cancerous tissue but not in the normal mucosa. These results demonstrate that a stimulating effect may be present in tumor cell kinetics and hence, the use of a cycle-specific chemotherapeutic agent is indicated.
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Affiliation(s)
- W X Cao
- Rui Jin Hospital, Shanghai Second Medical University
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13
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Cao WX. [Effects of parenteral nutrition on protein metabolism in patients with gastric cancer]. Zhonghua Wai Ke Za Zhi 1990; 28:742-4, 782-3. [PMID: 2128264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
UNLABELLED In this study, the changes of protein kinetics in patients with gastric cancer were determined using by 15N-glycine tracer assay before and after parenteral nutrition. The results showed that the protein turnover especially anabolic rate may be enhanced by parenteral nutritional support. The pre- and post operative increase of protein anabolic rate was more than that of the catabolic rate, about 10% and 88% respectively. This phenomenon could be explained as following, (1). the abnormal metabolism in cancer patients was extinguished after the tumor resection; (2). the supplementation of the nitrogen was increased; (3). branched chain amino acids could be used as energy resource for muscle metabolism and to improve protein synthesis while its breakdown was inhibited. CONCLUSION It is necessary to administer the parenteral nutritional support to patients with malnutrition before operation. With adequate nitrogen and calorie supply, negative nitrogen balance could be improved.
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Affiliation(s)
- W X Cao
- Rinjin Hospital, Shanghai Second Medical University
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Yan ML, Cao WX. Energy-density correlation function of the Ising model in small magnetic fields for T<Tc. Phys Rev B Condens Matter 1988; 38:9152-9159. [PMID: 9945703 DOI: 10.1103/physrevb.38.9152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Cao D, Huang ZG, Cao WX. [A study on the immune function of erythrocyte in patients with leukemia]. Zhonghua Nei Ke Za Zhi 1988; 27:634-7, 654. [PMID: 3229188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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