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He ZQ, Yu ZY, Zong JS, DI MI, Shen ZH, Liu YJ, Qin YY, Li K. Two new species of the genus Diestramima from China (Orthoptera: Rhaphidophoridae: Aemodogryllinae). Zootaxa 2023; 5343:281-295. [PMID: 38221375 DOI: 10.11646/zootaxa.5343.3.4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Indexed: 01/16/2024]
Abstract
The genus Diestramima comprises 41 species from Asia with 31 species distributed in China. In this study, we reconstruct the phylogeny tree of Diestramima species by maximum likelihood and Bayesian inference based on three mitochondrial genes (COI, 12S and 16S). The result indicates that the phylogenetic results are coherent with that based on five molecular markers (COI, 12S, 16S, 18S and 28S). Moreover, two new species, D. pingmengensis sp. nov. He & Zong and D. gulinjingensis. sp. nov. Zong & He are described. Their validities are also supported by morphological features. Furthermore, D. sichuanensis Zhu & Shi, 2022 is treated as a junior synonym of D. guangxiensis Qin, Wang, Liu & Li, 2016 based on both morphological and molecular features.
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Affiliation(s)
- Zhu-Qing He
- Museum of Biology; School of Life Sciences; East China Normal University; Shanghai 200241; China.
| | - Zhe-Yuan Yu
- School of Life Sciences; East China Normal University; Shanghai 200241; China.
| | - Jing-Song Zong
- School of Life Sciences; East China Normal University; Shanghai 200241; China.
| | - M I DI
- School of Life Sciences; East China Normal University; Shanghai 200241; China.
| | - Zi-Hao Shen
- Hubei Broad Nature Technology Service Co.; Ltd.
| | - Yi-Jiao Liu
- School of Life Sciences; East China Normal University; Shanghai 200241; China.
| | - Yan-Yan Qin
- School of Life Sciences; Henan University; China.
| | - Kai Li
- School of Life Sciences; East China Normal University; Shanghai 200241; China.
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Gao CJ, Yang F, Wu B, Liang Y, Qin YY, Guo Y. A pilot study of several environmental endocrine disrupting chemicals in children with autism spectrum disorder in south China. Environ Monit Assess 2023; 195:964. [PMID: 37462787 DOI: 10.1007/s10661-023-11570-6] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/28/2023] [Indexed: 07/21/2023]
Abstract
Autism spectrum disorders (ASD) is a group of heterogeneous neurodevelopmental disorders. Evidence has implied that environmental pollutants are important factors related to ASD. In this study, several environmental endocrine-disrupting chemicals, including parabens, benzophenone-type ultraviolet filters, hydroxyl polycyclic aromatic hydrocarbons, triclosan and tetrabromobisphenol A were analyzed in blood plasma in ASD children (n = 34) and the control children (n = 28). The results showed that parabens were the most concentrated chemicals (2.18 ng/mL, median value), followed by hydroxyl polycyclic aromatic hydrocarbons (0.73 ng/mL), benzophenone-type ultraviolet filters (0.14 ng/mL), triclosan (0.13 ng/mL) and tetrabromobisphenol A (0.03 ng/mL). ASD children accumulated significantly lower 2-hydroxy-4-methoxybenzophenone, 2,4-dihydroxybenzophenone, 4-hydroxybenzophenone and triclosan but higher 2-hydroxyphenanthrene and tetrabromobisphenol A than the control children (0.02/0.09 ng/mL of 2-hydroxy-4-methoxybenzophenone, p < 0.05; 0.04/0.07 ng/mL of 2,4-dihydroxybenzophenone, p < 0.05; 0.03/0.04 ng/mL of 4-hydroxybenzophenone, p < 0.05; 0.13/1.22 ng/mL of triclosan, p < 0.01; 0.03 ng/mL/not detected of 2-hydroxyphenanthrene, p < 0.05; 0.03/0.004 ng/mL of tetrabromobisphenol A, p < 0.05). Gender differences in certain environmental endocrine-disrupting chemicals were evident, and the differences were more inclined toward boys. Positive associations between 2-hydroxy-4-methoxybenzophenone and triclosan, and tetrabromobisphenol A and 2-hydroxyphenanthrene were found in ASD boys. Binary logistic regression analysis showed that the adjusted odds ratio value of 2-hydroxyphenanthrene in ASD boys was 11.0 (1.45-84.0, p < 0.05). This is the first pilot study on multiple environmental endocrine-disrupting chemicals in children with ASD in China.
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Affiliation(s)
- Chong-Jing Gao
- College of Biological and Environmental Science, Zhejiang Wanli University, Ningbo, 315100, China.
- School of Environment, Jinan University, Guangzhou, 510632, China.
| | - Feng Yang
- Speech Therapy Department, Shenzhen Children's Hospital, Shenzhen, 518055, China
| | - Binbin Wu
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Yan Liang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Yan-Yan Qin
- School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, 518055, China.
| | - Ying Guo
- School of Environment, Jinan University, Guangzhou, 510632, China
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Qin YY, Yao YY, Liu N, Wang B, Liu LJ, Li H, Gao TXZ, Xu RH, Wang XY, Song JP. [Whole exome sequencing analysis and prenatal diagnosis in children with neurodevelopmental disorders]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:753-759. [PMID: 37165823 DOI: 10.3760/cma.j.cn112150-20220606-00577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
To explore the application value of whole exome sequencing (WES) in the diagnosis of prenatal and postnatal neurodevelopmental disorders (NDDs). A total of 70 patients diagnosed with NDDs who underwent WES at the Medical Genetics Center of the Maternal and Child Health Hospital of Hubei Province between June 2020 and July 2021 were retrospectively analyzed. Genomic DNA was extracted from peripheral blood samples and amniotic fluid. WES-based copy number variant (CNV) analysis was integrated into the routine WES data analysis pipeline. The results showed that a molecular diagnosis rate could be made in 21/70 (30%) cases. Of 21 positive cases, 14 (23%) cases were detected by single-nucleotide variant/small insertion/deletion (SNV/Indel) analysis, of which 12 variants were novel, 6 (9.8%) cases were detected by WES-based CNV analysis, and 1 (1.6%) case was detected by a combination of both. The diagnostic yield of WES combined with CNV analysis was higher than that of SNV/Indel analysis alone (30%, 21/70 vs. 20%, 14/70). Of the 28 prenatally diagnosed cases, 6 cases were found to have inherited parental variation for NDDs, 10 cases were found not to have the same pathogenic variation as the proband, and the remaining 12 cases were found to have no pathogenic or likely pathogenic variation that could explain the NDDs phenotype. Clinical follow-up showed that 5 families opted for abortion and the remaining had no current abnormalities. In conclusion, WES may be an effective method to clarify the genetic etiology and prenatal diagnosis of NDDs, which is helpful in assessing the prognosis to aid clinical management and reproductive guidance.
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Affiliation(s)
- Y Y Qin
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
| | - Y Y Yao
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
| | - N Liu
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
| | - B Wang
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
| | - L J Liu
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
| | - H Li
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
| | - T X Z Gao
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
| | - R H Xu
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
| | - X Y Wang
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
| | - J P Song
- Medical Genetics Center, Maternal and Child Health Hospital of Hubei Province, Wuhan 430070, China
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Yao M, Zhou P, Qin YY, Wang L, Yao DF. Mitochondrial carnitine palmitoyltransferase-II dysfunction: A possible novel mechanism for nonalcoholic fatty liver disease in hepatocarcinogenesis. World J Gastroenterol 2023; 29:1765-1778. [PMID: 37032731 PMCID: PMC10080702 DOI: 10.3748/wjg.v29.i12.1765] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/04/2022] [Accepted: 03/13/2023] [Indexed: 03/28/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) or metabolic-associated fatty liver disease has been characterized by the lipid accumulation with injury of hepatocytes and has become one of the most common chronic liver diseases in the world. The complex mechanisms of NAFLD formation are still under identification. Carnitine palmitoyltransferase-II (CPT-II) on inner mitochondrial membrane (IMM) regulates long chain fatty acid β-oxidation, and its abnormality has had more and more attention paid to it by basic and clinical research in NAFLD. The sequences of its peptide chain and DNA nucleotides have been identified, and the catalytic activity of CPT-II is affected on its gene mutations, deficiency, enzymatic thermal instability, circulating carnitine level and so on. Recently, the CPT-II dysfunction has been discovered in models of liver lipid accumulation. Meanwhile, the malignant transformation of hepatocyte-related CD44+ stem T cell activation, high levels of tumor-related biomarkers (AFP, GPC3) and abnormal activation of Wnt3a expression as a key signal molecule of the Wnt/β-catenin pathway run parallel to the alterations of hepatocyte pathology. This review focuses on some of the progress of CPT-II inactivity on IMM with liver fatty accumulation as a possible novel pathogenesis for NAFLD in hepatocarcinogenesis.
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Affiliation(s)
- Min Yao
- Department of Medical Immunology, Medical School of Nantong University & Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Ping Zhou
- Department of Medical Immunology, Medical School of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Yan-Yan Qin
- Department of Medical Immunology, Medical School of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Li Wang
- Research Center for Intelligent Information Technology, Nantong University, Nantong 226019, Jiangsu Province, China
| | - Deng-Fu Yao
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
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Xue XM, Tang J, Zhou HL, Qin YY, Song Y, Li RZ, Zhang XY, Zhang T. All-polymer monolithic resonant integrated optical gyroscope. Opt Express 2022; 30:42728-42737. [PMID: 36366720 DOI: 10.1364/oe.474447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Resonant integrated optical gyroscopes (RIOGs) can integrate discrete optical components as a promising candidate for high-performance micro-optical gyroscopes. However, the current RIOG still consists of discrete elements due to the difficulty and complexity of heterogeneous integration of resonator and modulators. This paper presents on-chip integration of optical functional components including modulator, resonator, beam splitter, and coupler for the organic-polymer-based RIOG. Simple integrated optical processes such as spin coating, lithography, and etching can realize RIOG chips with low cost, size, weight, and power (CSWaP) features. Thereinto, the electro-optic modulator (EOM) fabricated by self-synthesized electro-optic (EO) polymer (side chain bonded polyurethane imide) exhibits less than 2 V half-wave voltage, which is half of the lithium niobate (LiNbO3) modulator. With respect to the resonator, a quality factor of approximately million was achieved using low-loss fluorinated polymer. In addition, the angular velocity sensing of RIOG was also investigated. By demonstrating the monolithic integration of the resonator and modulators, such an all-polymer RIOG chip prototype builds the technical foundation for the precision fully integrated optical gyroscope.
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Yao M, Wang JJ, Wang LL, Qin YY, Sai WL, Wang L, Shen SJ, Yao D. [Alteration of Wnt3a overexpression and its early monitoring value during hepatocellular carcinogenesis]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:947-953. [PMID: 36299188 DOI: 10.3760/cma.j.cn501113-20211223-00612] [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: 06/16/2023]
Abstract
Objective: To investigate the dynamic expression pattern of carcinoembryonic Wnt3a and its early monitoring value using a hepatocellular carcinoma model. Methods: Forty-eight Sprague Dawley (SD) rats were fed with pellet feed containing 2-acetylaminofluorene (2-AAF, 0.05%) to induce hepatocarcinogenesis, and control rats were fed a pellet diet. Liver tissue and blood samples were collected every two weeks. Liver tissues were pathologically examined using HE staining and grouped. The gene and Wnt3a mRNA expression were analyzed by genome-wide microarray. The expression and distribution of Wnt3a in liver tissue were analyzed by immunohistochemistry. Wnt3a concentration in liver tissue and serum was quantified by enzyme-linked immunosorbent assay. Statistical methods such as χ2 test, Mann-Whitney test and analysis of variance were used to analyze the differences between groups. Results: According to the pathological examination results, the rat livers were divided into four groups: control, hepatocyte degeneration, precancerous lesions and hepatocellular carcinoma. Genome-wide expression profiling analysis and comparison with the control group revealed that 268 and 312 genes were up-regulated and 57 and 201 genes were down-regulated in the precancerous and cancerous group when signal logarithm ratio (SLR) was >8 log2cy5/cy3, and these significantly altered genes mainly involved in cell proliferation, signal transduction, tumor metastasis, and apoptosis. The expression of Wnt3a at mRNA level was significantly increased in all stages of cancer induction, including degeneration group (1.15±0.24, q=8.227), precancerous group (1.85±0.18, q=12.361) and cancerous group (2.59±0.55, q=18.082). Compared with the control group (0.25±0.11, F=121.103, P<0.001), the degeneration group, the precancerous group and the liver cancer group were up-regulated by 4.6, 7.4 and 10.4-folds, respectively. Immunohistochemistry showed that compared with the control group, the positive rate of Wnt3a in the degeneration group was 66.7% (12/18, χ2=10.701, P=0.001), and both the precancerous and liver cancer groups were positive (9/9, χ2=17.115, P<0.001). Wnt3a expression was gradually increased in liver and blood samples during the process of carcinogenesis, and the difference between two groups was statistically significant (F=176.711, P<0.001). Wnt3a overexpression was secreted into blood stream via cancerous liver tissue, and there was a linear correlation between Wnt3a levels in blood and liver samples (r=0.732, P<0.001). Conclusions: Wnt3a overexpression is closely related with hepatocellular carcinogenesis, and thus may become a new monitoring marker.
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Affiliation(s)
- M Yao
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China Department of Immunology, Medical School of Nantong University, Nantong 226001, China
| | - J J Wang
- Jiangsu Nantong Higher Vocational and Technical School of Health, Nantong 226016
| | - L L Wang
- Department of Immunology, Medical School of Nantong University, Nantong 226001, China
| | - Y Y Qin
- Department of Immunology, Medical School of Nantong University, Nantong 226001, China
| | - W L Sai
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - L Wang
- Department of Immunology, Medical School of Nantong University, Nantong 226001, China
| | - S J Shen
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China Department of Oncology, Nantong Hospital of Traditional Chinese Medicine, Nantong 226001, China
| | - Dengfu Yao
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong 226001, China
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Zhao FF, Zhang XZ, Zhang Y, Elmhadi M, Qin YY, Sun H, Zhang H, Wang MZ, Wang HR. Tannic Acid-Steeped Corn Grain Modulates in vitro Ruminal Fermentation Pattern and Microbial Metabolic Pathways. Front Vet Sci 2021; 8:698108. [PMID: 34778425 PMCID: PMC8581138 DOI: 10.3389/fvets.2021.698108] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 08/13/2021] [Indexed: 11/13/2022] Open
Abstract
This study investigated the effects of tannic acid (TA)-treated corn on changes in ruminal fermentation characteristics and the composition of the ruminal bacterial community in vitro. Ruminal fluid was obtained from three rumen-fistulated goats fed a 60:40 (forage/concentrate) diet. The batch cultures consisted of 25 ml of strained rumen fluid in 25 ml of an anaerobic buffer containing 0.56 g of ground corn, 0.24 g of soybean meal, 0.10 g of alfalfa, and 0.10 g of oat grass. Ground corn (2 mm) was steeped in an equal quantity (i.e., in a ratio of 1:1, w/v) of water alone (Con), 15 (TA15), 25 (TA25), and 35 g/l (TA35) TA solution for 12 h. After incubation for 24 h, TA-treated corn linearly increased (P <0.05) ruminal pH and the molar proportion of acetate, but linearly reduced (P <0.05) total volatile fatty acids and the molar proportion of butyrate compared with the Con treatment. Illumina MiSeq sequencing was used to investigate the profile changes of the ruminal microbes. A principal coordinates analysis plot based on weighted UniFrac values revealed that the structure of the ruminal bacterial communities in the control group was different from that of the TA-treated corn groups. The results of changes in the rumen bacterial communities showed that TA-treated corn linearly enriched (P <0.05) Rikenellaceae_RC9_gut_group, but linearly reduced (P <0.05) Ruminococcaceae_NK4A214_group, Ruminococcus_2, and unclassified_o__Clostridiales. Functional prediction of ruminal microbiota revealed that the TA-treated corn linearly decreased ruminal microbiota function of utilizing starch through pyruvate metabolism. In conclusion, TA-treated corn can modulate the rumen fermentation characteristics, microbial composition, and metabolic pathways, which may be potentially useful for preventing the occurrence of ruminal acidosis.
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Affiliation(s)
- F F Zhao
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China.,College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - X Z Zhang
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Y Zhang
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Mawda Elmhadi
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Y Y Qin
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - H Sun
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China.,Jiangsu Coastal Area, Institute of Agricultural Sciences, Yancheng, China
| | - H Zhang
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - M Z Wang
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - H R Wang
- Laboratory of Metabolic Manipulation of Herbivorous Animal Nutrition, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
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Zong JS, Qin YY, Li K, He ZQ. Report of a new genus Arboramima belonging to tribe Diestramimini, with a new species A. cattusis from Guangxi, China (Orthoptera: Rhaphidophoridae: Aemodogryllinae). Zootaxa 2021; 4981:593600. [PMID: 34186704 DOI: 10.11646/zootaxa.4981.3.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Indexed: 11/04/2022]
Abstract
A new genus (Arboramima Zong, Qin He gen. nov.) with a new species (Arboramima cattusis Zong, Qin He sp. nov.) is reported from Guangxi, China. The morphology of the new genus and species are provided. Samples of Aemodogryllinae species were selected for the reconstruction of phylogenetic tree based on mitochondrial COI fragment. The results supported the validation of the new genus. The type specimens are deposited in Museum of Biology, East China Normal University (ECNU).
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Affiliation(s)
- Jing-Song Zong
- School of Life Sciences, East China Normal University, Shanghai 200241, China..
| | - Yan-Yan Qin
- Co-first author, School of Life Sciences, Henan University, Kaifeng 475001, China..
| | - Kai Li
- School of Life Sciences, East China Normal University, Shanghai 200241, China..
| | - Zhu-Qing He
- Museum of Biology, School of Life Sciences, East China Normal University, Shanghai 200241, China..
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Qin YY, Liu XW, Li K. Remarks on genus Microtachycines Gorochov, 1992 (Orthoptera: haphidophoridae: Aemodogryllinae) from China. Zootaxa 2020; 4801:zootaxa.4801.3.9. [PMID: 33056650 DOI: 10.11646/zootaxa.4801.3.9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Indexed: 11/04/2022]
Abstract
In this work, one new species Microtachycines trispinosus Qin et Li sp. nov. from Sanqingshan of Jiangxi province is described and illustrated with photographs. It is mentioned that Microtachycines fallax Qin, Liu, Li, 2017 should be regarded as the junior synonym of Microtachycines elongatus Qin, Liu Li, 2017. All examined specimens are deposited in Shanghai Entomological Museum, Chinese Academy of Sciences (SEM, CAS).
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Affiliation(s)
- Yan-Yan Qin
- School of Life Sciences, East China Normal University, Shanghai 200241, China..
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Wang F, Xie XH, Lin XQ, Qin YY, Xie ZH, Zhang JX, Ouyang M, Zhou CZ. [Exploration of the treatment model for patients with advanced non-small cell lung cancer complicated with chronic obstructive pulmonary disease based on real-world data]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:450-454. [PMID: 32450634 DOI: 10.3760/cma.j.cn112147-20200304-00241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore whether combining treatment of chronic obstructive pulmonary disease (COPD) with anti-tumor therapy is better than that of tumor treatment alone in advanced non-small cell lung cancer (NSCLC) patients with COPD in the real world. Methods: The clinical data of 101 patients with advanced NSCLC complicated with COPD from January 1, 2015, to December 31, 2017, in the First Affiliated Hospital of Guangzhou Medical University were analyzed retrospectively, including 99 males and two females, aged from 52 to 84 years[average (67±8) years]. Among the patients, 90 (89.1%) were smokers, with an average pack-year smoking index of (47±4) . The patients were divided into observation and control groups, depending on whether they received standardized anti-COPD supportive treatment. In the observation group, there were 36 patients, including 35 males and one female, aged from 54 to 84 years[ average (67±8) years], with an average pack-year of smoking (47±4). There were 65 patients in the control group, including 64 males and one female, aged from 52 to 83 years [average (67±8) years], with an average pack-year of smoking 47±4. There was no significant difference in the baseline data between the two groups. The primary outcome measures included the Objective response rate (ORR), disease control rate (DCR), disease-free survival (PFS), and overall survival (OS) of the two groups. An unpaired t-test was used to compare continuous variables between the observation and control groups. The Pearson chi-square test was used to compare categorical variables between the two groups. Kaplan-Meier survival curves were used to evaluate the median PFS and median OS of patients, and the log-rank test was used to assess differences between groups. Result: The ORR of the observation group and the control group was 22.6% (7 cases) and 22.2% (11 cases), respectively, with no significant difference (χ(2)=0.01, P=0.971). The DCR between the observation group and the control group was 58.1% (19 cases) and 57.8% (27 cases), with no significant difference (χ(2)=0.02, P=0.889). Median PFS in the observation group was 6.0 months, which was better than the 3.5 months in the control group (χ(2)=3.947, P<0.05). The median OS of the observation group was 18.0 months, which was better than the 15.0 months of the control group (χ(2)=4.083, P<0.05). Conclusions: Compared with the treatment of tumors alone, combination of anti-tumor therapy with anti-COPD therapy showed longer PFS and OS in patients with advanced NSCLC complicated with COPD.
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Affiliation(s)
- F Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120,China
| | - X H Xie
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120,China
| | - X Q Lin
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120,China
| | - Y Y Qin
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120,China
| | - Z H Xie
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120,China
| | - J X Zhang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120,China
| | - M Ouyang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120,China
| | - C Z Zhou
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120,China
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Qin YY, Jian B, Wu C, Jiang CZ, Kang Y, Zhou JX, Yang F, Liang Y. A comparison of blood metal levels in autism spectrum disorder and unaffected children in Shenzhen of China and factors involved in bioaccumulation of metals. Environ Sci Pollut Res Int 2018; 25:17950-17956. [PMID: 29680891 DOI: 10.1007/s11356-018-1957-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
The present study compared blood plasma metals in children with autism spectrum disorder (ASD) with those in unaffected children in Shenzhen (China). Factors associated with the metal bioaccumulation were further investigated. Thirty-four blood samples of children with ASD were collected in a local hospital (Shenzhen Children's Hospital), while those of 38 unaffected children were from a local large public kindergarten, during March to April in 2016. Metal analysis was carried out by inductively coupled plasma-optical emission spectrometry. The results showed that children with ASD had higher (P < 0.01, 0.05) Pb (ASD 31.9 μg/L, unaffected children 18.6 μg/L), Hg (3.83, and 1.09 μg/L), and Cd (0.70 and 0.26 μg/L) than unaffected children, while essential elements Zn (ASD 4552.0 μg/L, unaffected children 5118.6 μg/L), Se (61.7 and 90.6 μg/L), and Mn (13.5 and 21.4 μg/L) showed an opposite pattern. Moreover, the children exposed to passive smoking had higher (P < 0.05) Cd (passive smoking 1.08 μg/L; non-passive smoking 0.22 μg/L) than those without the exposure. Positive associations were found between levels of Hg or Pb and seafood consumption as well as body mass index (BMI). More future work is needed in order to clarify the association between metal exposure and ASD occurrence in China.
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Affiliation(s)
- Yan-Yan Qin
- Shenzhen Polytechnic, Shenzhen, 518055, People's Republic of China
| | - Bin Jian
- Shenzhen Public Security, Shenzhen, 518040, People's Republic of China
| | - Chuan Wu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, People's Republic of China
| | - Cheng-Zi Jiang
- Laboratory for Food Safety and Environmental Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, People's Republic of China
| | - Yuan Kang
- School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, People's Republic of China
| | - Jia-Xiu Zhou
- Shenzhen Children's Hospital, Shenzhen, 518026, People's Republic of China
| | - Feng Yang
- Shenzhen Children's Hospital, Shenzhen, 518026, People's Republic of China.
- Speech Therapy Department, Shenzhen Children's Hospital, Shenzhen, 518026, People's Republic of China.
| | - Yan Liang
- Laboratory for Food Safety and Environmental Technology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, People's Republic of China.
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Wang H, Ma JL, Yang YG, Song Y, Wu J, Qin YY, Zhao XL, Wang J, Zou LL, Wu JF, Li JM, Liu CB. Efficient therapeutic delivery by a novel cell-permeant peptide derived from KDM4A protein for antitumor and antifibrosis. Oncotarget 2018; 7:49075-49090. [PMID: 27081693 PMCID: PMC5226491 DOI: 10.18632/oncotarget.8682] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 03/28/2016] [Indexed: 01/23/2023] Open
Abstract
Cell-penetrating peptide (CPP) based delivery have provided immense potential for the therapeutic applications, however, most of nonhuman originated CPPs carry the risk of possible cytotoxicity and immunogenicity, thus may restricting to be used. Here, we describe a novel human-derived CPP, denoted hPP10, and hPP10 has cell-penetrating properties evaluated by CellPPD web server, as well as In-Vitro and In-Vivo analysis. In vitro studies showed that hPP10-FITC was able to penetrate into various cells including primary cultured cells, likely through an endocytosis pathway. And functionalized macromolecules, such as green fluorescent protein (GFP), tumor-specific apoptosis inducer Apoptin as well as biological active enzyme GCLC (Glutamate-cysteine ligase, catalytic subunit) can be delivered by hPP10 in vitro and in vivo. Collectively, our results suggest that hPP10 provide a novel and versatile tool to deliver exogenous proteins or drugs for clinical applications as well as reprogrammed cell-based therapy.
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Affiliation(s)
- Hu Wang
- The Institute of Cell Therapy, China Three Gorges University, Yichang 443002, China.,Medical School, China Three Gorges University, Yichang 443002, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China
| | - Jie-Lan Ma
- Medical School, China Three Gorges University, Yichang 443002, China
| | - Ying-Gui Yang
- The Institute of Cell Therapy, China Three Gorges University, Yichang 443002, China.,Medical School, China Three Gorges University, Yichang 443002, China
| | - Yang Song
- The Institute of Cell Therapy, China Three Gorges University, Yichang 443002, China.,Medical School, China Three Gorges University, Yichang 443002, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China
| | - Jiao Wu
- The Institute of Cell Therapy, China Three Gorges University, Yichang 443002, China.,Medical School, China Three Gorges University, Yichang 443002, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China
| | - Yan-Yan Qin
- Medical School, China Three Gorges University, Yichang 443002, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China
| | - Xue-Li Zhao
- Medical School, China Three Gorges University, Yichang 443002, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China
| | - Jun Wang
- The Institute of Cell Therapy, China Three Gorges University, Yichang 443002, China.,The 1st People's Hospital of Yichang, Yichang 443000, China
| | - Li-Li Zou
- The Institute of Cell Therapy, China Three Gorges University, Yichang 443002, China.,Medical School, China Three Gorges University, Yichang 443002, China
| | - Jiang-Feng Wu
- The Institute of Cell Therapy, China Three Gorges University, Yichang 443002, China.,Medical School, China Three Gorges University, Yichang 443002, China
| | - Jun-Ming Li
- The Institute of Cell Therapy, China Three Gorges University, Yichang 443002, China.,The 1st People's Hospital of Yichang, Yichang 443000, China
| | - Chang-Bai Liu
- The Institute of Cell Therapy, China Three Gorges University, Yichang 443002, China.,Medical School, China Three Gorges University, Yichang 443002, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, China Three Gorges University, Yichang 443002, China
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13
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Qin YY, Zhang DH, Lin XQ, Ouyang M, Zhang JX, Xie ZH, Liu YQ, Li SY, Zhou CZ. [Clinical analysis of 36 cases of advanced non-small cell lung cancer (NSCLC) with performance status (PS) scores between 2 and 4]. Zhonghua Zhong Liu Za Zhi 2017; 39:855-861. [PMID: 29151293 DOI: 10.3760/cma.j.issn.0253-3766.2017.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the treatment of advanced non-small cell lung cancer (NSCLC) with performance status (PS) scores between 2 and 4, in order to improve the diagnosis and treatment of these patients. Methods: A total of 36 patients with advanced NSCLC with hypoxemia were reviewed. The clinical data of disease characteristics, etiology, complications, manifestation, therapy, progression, and secondary biopsy were collected. The clinical efficacy was graded according to the Response Evaluation Criteria In Solid Tumors (RECIST): complete response (CR), partial response (PR), stable disease (SD) and disease progression (PD). Results: All patients had hypoxemia, of whom 86.1% (31 patients) had complications and 55.6% (20 patients) had noninvasive ventilator for respiratory support. 77.8% (28 cases) received broad-spectrum antibiotic treatment, and 78.6% of them got lung osmotic relief after the anti-infection treatment. 15 cases received bedside fiberoptic bronchoscopy suction, of whom two cases were treated with airway stent deposition due to airway obstruction, four cases with thoracic drainage, four cases with anticoagulation, and one with thrombolytic therapy. After these supportive treatment, the PS score of these patients decreased from 3.4±0.5 to 2.5±0.7, while SPO(2) improved from (89.0±5.2)% to (95.0±3.5)%. As first-ling anti-cancer treatment, nine patients were administrated with targeted medicine orally, 13 patients with a combined chemotherapy of pemetrexed plus bevacizumab or carboplatin, eight patients with paclitaxel plus carboplatin, four patients with gemcitabine plus carboplatin, and two patients with docetaxel plus gemcitabine. In the first response evaluation, there were one case of CR, 23 cases of PR, four cases of SD, and eight cases of PD, with a clinical benefit rate of 66.7% and a disease control rate of 77.8%. A total of 22 patients experienced disease progression, of whom eight cases had a secondary biopsy and six cases had gene sequencing. Of these 36 patients, 10 (27.8%) patients survived at the last follow-up, with a progression-free survival of (10.0±6.5) months. Conclusion: Besides prompt anti-cancer treatment and best supportive treatment should be incorporated to improve PS and improve outcome.
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Affiliation(s)
- Y Y Qin
- The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory, Guangzhou respiratory health research institute, Guangzhou 510120, China
| | - D H Zhang
- The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory, Guangzhou respiratory health research institute, Guangzhou 510120, China
| | - X Q Lin
- The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory, Guangzhou respiratory health research institute, Guangzhou 510120, China
| | - M Ouyang
- The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory, Guangzhou respiratory health research institute, Guangzhou 510120, China
| | - J X Zhang
- The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory, Guangzhou respiratory health research institute, Guangzhou 510120, China
| | - Z H Xie
- The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory, Guangzhou respiratory health research institute, Guangzhou 510120, China
| | - Y Q Liu
- The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory, Guangzhou respiratory health research institute, Guangzhou 510120, China
| | - S Y Li
- The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory, Guangzhou respiratory health research institute, Guangzhou 510120, China
| | - C Z Zhou
- The First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory, Guangzhou respiratory health research institute, Guangzhou 510120, China
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14
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Zhou N, Wu J, Qin YY, Zhao XL, Ding Y, Sun LS, He T, Huang XW, Liu CB, Wang H. Novel peptide MT23 for potent penetrating and selective targeting in mouse melanoma cancer cells. Eur J Pharm Biopharm 2017; 120:80-88. [DOI: 10.1016/j.ejpb.2017.08.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 08/15/2017] [Accepted: 08/25/2017] [Indexed: 10/19/2022]
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15
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Affiliation(s)
- Wen-Juan Xu
- Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials; Nanjing University of Posts and Telecommunications; 210023 Nanjing P. R. China
| | - Yan-Yan Qin
- Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials; Nanjing University of Posts and Telecommunications; 210023 Nanjing P. R. China
| | - Liu-Wei Wei
- Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials; Nanjing University of Posts and Telecommunications; 210023 Nanjing P. R. China
| | - Kenneth Yin Zhang
- Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials; Nanjing University of Posts and Telecommunications; 210023 Nanjing P. R. China
| | - Shu-Juan Liu
- Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials; Nanjing University of Posts and Telecommunications; 210023 Nanjing P. R. China
| | - Qiang Zhao
- Key Laboratory for Organic Electronics & Information Displays and Institute of Advanced Materials; Nanjing University of Posts and Telecommunications; 210023 Nanjing P. R. China
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16
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Jiang CZ, Qin YY, Zhou SM, Pan YL, Yan XQ, Wang YB, Liang Y. Relationship between gut microbiota and gastrointestinal disorders in patients with autism spectrum disorders. Shijie Huaren Xiaohua Zazhi 2016; 24:3281-3287. [DOI: 10.11569/wcjd.v24.i21.3281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Autism spectrum disorders (ASDs) are a group of neurodevelopmetal disorders with increasing morbidity. Gastrointestinal disorders such as diarrhea, constipation and abdominal pain are common among patients with ASDs. This article reviews studies on gastrointestinal disorders among ASD patients, with great importance attached to the role of gut microbiota in ASD pathogenesis. We propose that food rich in probiotics and/or prebiotics should be designed for ASD patients to help improve their gut micorbiota disorders.
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17
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Zhang XR, Ding LL, Tang R, Sheng Y, Qin YY, Chen ZJ. [Effects of cystectomy for ovary benign cyst on ovarian reserve and pregnancy outcome of in vitro fertilization-embryo transfer cycle]. Zhonghua Fu Chan Ke Za Zhi 2016; 51:180-5. [PMID: 27030496 DOI: 10.3760/cma.j.issn.0529-567x.2016.03.004] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the impact of previous cystectomy for ovary benign cyst on ovarian reserve and pregnancy outcome in in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET) cycles. METHODS Totally 622 infertility patients were retrospectively investigated who underwent first IVF/ICSI-ET cycle in Reproductive Hospital Affiliated to Shandong University from January 2013 to June 2014. There were 153 cases who had been removed ovarian cyst by cystectomy surgeries recruited as study group, in which 44 cases of ovarian endometriosis cyst, 35 cases of benign ovarian teratomas, 67 cases of simple ovarian cyst and 7 cases of ovarian mucinous cystadenoma. In contrast, 469 infertility patients with tubal-factor infertility or male factor were included as control group. The age-matched women in the control group had no ovarian surgery previously. The indicators of ovarian reserve and pregnancy outcome were analyzed between two groups. The influence of different types of ovarian cysts on ovarian reserve and pregnancy outcome in IVF/ICSI-ET cycles were also studied, ovarian endometriosis cyst was studied as Group A, and Group B consisted of benign ovarian teratomas, simple ovarian cyst and mucinous cystadenoma. RESULTS (1) The significantly lower serum antimullerian hormone (AMH) level (median: 1.92 versus 2.90 mg/L), antral follicle count (AFC; median: 12.0 versus 13.0), retrieved oocytes (12±5 versus 13±6) and the number of embryo cryopreserved (median: 1.0 versus 3.0) were found in study group compared with control group (all P<0.05). There was no statistical difference between two group for the following parameters, such as basal FSH level, the total dosage of gonadotropin duration and the total dosage of gonadotropin (all P>0.05). A better clinical pregnancy rate was achieved in control group (61.6%, 241/391) than that in study group (61.4%, 81/132), but no significant difference was existed (P=0.96). (2) Compared to Group B, Group A had fewer AFC, lower serum AMH level, retrieved oocytes and the number of embryo cryopreserved (11±4 versus 13±5; 1.65 versus 2.15 mg/L; 9±4 versus 13±5; 0 versus 2.0; all P< 0.01). There was a lower clinical pregnancy rate in Group A than that in Group B [50.0% (19/38) versus 66.0% (62/94)], accompanying with higher abortion rate [3/19 versus 9.7% (6/62)], but no differences were observed (all P>0.05). CONCLUSIONS Ovarian reserve declines after the cystectomy for ovarian benign cysts and the cystectomy has a negative impact on IVF/ICSI-ET cycle, resulting in a decrease of the number of retrieved oocytes and the number of embryo cryopreserved, but do not influence clinical pregnancy outcome. Ovarian reserve is impaired more seriously by cystectomy for ovarian endometriosis cyst than other ovarian benign cyst.
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Affiliation(s)
- X R Zhang
- Department of Clinical IVF, Reproductive Hospital Affiliated to Shandong University, Jinan 250021, China
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18
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Liang P, Qin YY, Zhang C, Zhang J, Cao Y, Wu SC, Wong CKC, Wong MH. Plasma mercury levels in Hong Kong residents: in relation to fish consumption. Sci Total Environ 2013; 463-464:1225-1229. [PMID: 23680090 DOI: 10.1016/j.scitotenv.2013.04.049] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 03/12/2013] [Accepted: 04/14/2013] [Indexed: 06/02/2023]
Abstract
Mercury exposure is of particular concern since mercury is a neurotoxin and the developing fetus is most sensitive to its adverse effect. Human blood is routinely used as an indicator for the evaluation of human exposure to Hg. To investigate Hg species in human plasma for Hong Kong residents and the relationship between fish consumption and Hg species in plasma, 151 plasma samples were analyzed for Hg species. The mean values of total Hg (THg) and methyl-mercury (MeHg) concentration in plasma were 0.62 and 0.28 μg/L, respectively. No significant differences were observed between females and males as well as among age groups. Fish consumption rate was significantly positively correlated with MeHg concentrations in plasma, which demonstrated that plasma could be a biomarker for human MeHg exposure. Two methods were used to estimate human MeHg exposure. One was based on fish MeHg content and fish consumption rate (EDI(Fish)), another was employed by converting MeHg concentration in blood to MeHg exposure amount (EDI(Blood)). A significant positive correlation was observed between EDI(Blood) and EDI(Fish), and no significant difference was found between EDI(Blood) and EDI(Fish). These results demonstrated that fish consumption was the major source of MeHg for humans.
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Affiliation(s)
- Peng Liang
- School of Environment and Resources Science, Zhejiang Agriculture and Forest University, Lin'an, Zhejiang Province, PR China
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Li WJ, Li JH, Knops JMH, Wang G, Jia JJ, Qin YY. Plant communities, soil carbon, and soil nitrogen properties in a successional gradient of sub-alpine meadows on the eastern Tibetan plateau of China. Environ Manage 2009; 44:755-765. [PMID: 19705196 DOI: 10.1007/s00267-009-9361-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2008] [Revised: 05/07/2009] [Accepted: 07/26/2009] [Indexed: 05/28/2023]
Abstract
To assess the recovery trajectory and self-maintenance of restored ecosystems, a successional gradient (1, 3, 5, 15, and 30 years after abandonment) was established in a sub-alpine meadow of the eastern Tibetan Plateau in China. Plant communities and soil carbon and nitrogen properties were investigated and analyzed. Regression analyses were used to assess the models (linear or quadratic) relating measures of species richness, soil carbon and nitrogen properties to fallow time. We found that species richness (S) increased over the first 20 years but decreased thereafter, and aboveground biomass showed a linear increase along the fallow time gradient. The richness of different functional groups (forb, grass and legume) changed little along the fallow time gradient, but their corresponding above ground biomass showed the U-shaped, humped or linear pattern. Soil microbial carbon (MBC) and nitrogen (MBN) in the upper 20 cm showed a U-shaped pattern along the fallow time gradient. However, soil organic carbon (C(org)) and total nitrogen (TN) in the soil at depth greater than 20 cm showed significant patterns of linear decline along the fallow time gradient. The threshold models of species richness reflected best the recovery over the 15 year fallow period. These results indicated that fallow time had a greater influence on development of the plant community than soil processes in abandoned fields in sub-alpine meadow ecosystem. These results also suggested that although the succession process did not significantly increase soil C, an increase in microbial biomass at the latter stage of succession could promote the decomposability of plant litter. Therefore, abandoned fields in sub-alpine meadow ecosystem may have a high resilience and strong rehabilitating capability under natural recovery condition.
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Affiliation(s)
- Wen-Jin Li
- Lanzhou University, People's Republic of China.
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Quan ZW, Yue JN, Li JY, Qin YY, Guo RS, Li SG. Somatostatin elevates topoisomerase II alpha and enhances the cytotoxic effect of doxorubicin on gallbladder cancer cells. Chemotherapy 2008; 54:431-7. [PMID: 18824850 DOI: 10.1159/000158662] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2008] [Accepted: 06/22/2008] [Indexed: 11/19/2022]
Abstract
BACKGROUND Gallbladder cancer is a common and lethal digestive malignancy which is nonsensitive to routine chemotherapy. Doxorubicin (DOX) is one of the major chemotherapeutic drugs for patients with gallbladder cancer. We tried to evaluate if combined use of somatostatin (SST) and DOX could have synergistic effect in the treatment of gallbladder cancer. METHODS Cells from the human gallbladder cancer cell line GBC-SD were treated with SST. Cell cycle analysis was determined by flow cytometry. Western blot analysis was performed to determine the protein levels of topoisomerase IIalpha (Topo IIalpha) after SST treatment. RT-PCR was utilized to detect SST receptors in GBC-SD cells. Finally, the chemotherapeutic effect of DOX combined with SST treatment on cellular growth was measured by MTT assay. RESULTS SST could induce cell cycle arrest in S phase and upregulate Topo IIalpha expression in GBC-SD cells. GBC-SD cells expressed all 5 subtypes of SST receptors. Finally, combined use of DOX with SST had a synergistic cytotoxic effect on GBC-SD cells. CONCLUSION SST, a naturally occurring, nontoxic compound, may represent a novel adjuvant chemotherapeutic agent for patients with gallbladder cancer.
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Affiliation(s)
- Z W Quan
- Department of General Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China.
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