1
|
Xu WJ, Xiao JF, Chen YM, Ding JQ. [Research progress of hepatocyte transplantation treatment for alpha-1 antitrypsin deficiency]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:973-976. [PMID: 33256287 DOI: 10.3760/cma.j.cn501113-20201103-00593] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Alpha-1 antitrypsin deficiency is an autosomal codominant genetic disease characterized by low levels of alpha-1 antitrypsin in the blood. Clinically, in young patients, it mainly manifests as emphysema, acute/chronic liver injury and liver cancer. The treatment methods include symptomatic treatment and alpha -1 antitrypsin supplementation. However, the existing treatment cannot prevent the liver fibrosis progression. At present, more than ten cases of the disease have been reported in China, but the understanding of this disease is still indecisive. Moreover, there exists no biotherapy drug for this disorder. This article introduces the research progress of hepatocyte transplantation treatment for this disorder.
Collapse
Affiliation(s)
- W J Xu
- Department of Infectious Diseases, Southwest Hospital Third Military Medical University(Army Medical University), Chongqing 400038, China
| | - J F Xiao
- Institute of Pathology, Southwest Hospital Third Military Medical University(Army Medical University), Chongqing 400038, China
| | - Y M Chen
- Institute of Pathology, Southwest Hospital Third Military Medical University(Army Medical University), Chongqing 400038, China
| | - J Q Ding
- Department of Infectious Diseases, Southwest Hospital Third Military Medical University(Army Medical University), Chongqing 400038, China
| |
Collapse
|
2
|
Zhao XL, Gao JS, Li LL, Li S, Wang H, Xiao JF, Zhang J, Mi H, Yang YJ, Zhao FY, Guan X, Cao YX, Wu YY, Lu CX, Yang T, Zhang X. [Prenatal gene diagnosis of 200 fetuses at high risk of osteogenesis imperfect]. Zhonghua Yi Xue Za Zhi 2019; 99:3328-3334. [PMID: 31715670 DOI: 10.3760/cma.j.issn.0376-2491.2019.42.011] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: The authors aim to provide genetic counselling and prenatal gene diagnosis to the families with osteogenesis imperfecta(OI), based on the identification of pathogenetic mutations in large cohort genetic testing. Methods: DNA was extracted from the peripheral blood of parents of the fetuses, and from the villi tissue, amniotic fluid or cord blood of the fetuses using a standard sodium dodecyl sulfate-proteinase K-phenol/chloroform extraction method. PCR combined with Sanger DNA sequencing was performed to validate the pathogenic mutations of 200 fetuses at risk of OI and their parents from 158 families. Allelic analysis of microsatellite markers was applied to exclude the false positive caused by maternal DNA contamination, when both the fetus and the mother harbored the same pathogenic genotype. Results: A total of 83 affected fetuses (83/200, 41.5%) and 12 (12/200, 6.0%) recessive carriers were identified among the 200 fetuses. The 83 affected fetuses included 78 heterozygotes (45 of COL1A1, 32 of COL1A2, one of IFITM5), and 5 compound heterozygotes or homozygotes of recessive OI (two of FKBP10, one of SEC24D, one of WNT1 and one of CRTAP); The 12 recessive carriers included 7 of WNT1, 4 of SERPINF1 and one of SERPINH1. Maternal DNA contamination was excluded from the genomic DNA samples of OI fetuses when their mother with the same affected genotypes. Conclusion: In this study, the authors used an optimized gene diagnosis system of OI to perform prenatal genetic diagnosis to 200 fetuses at high risk of OI, and provided precisely genetic counselling to the OI families.
Collapse
Affiliation(s)
- X L Zhao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - J S Gao
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing 100730, China
| | - L L Li
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - S Li
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - H Wang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - J F Xiao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - J Zhang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - H Mi
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Y J Yang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - F Y Zhao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - X Guan
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Y X Cao
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - Y Y Wu
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - C X Lu
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - T Yang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| | - X Zhang
- Department of Medical Genetics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences -School of Basic Medicine, Peking Union Medical College, Beijing 100005, China
| |
Collapse
|
3
|
Xiao JF, Wu SG, Zhang HJ, Yue HY, Wang J, Ji F, Qi GH. Bioefficacy comparison of organic manganese with inorganic manganese for eggshell quality in Hy-Line Brown laying hens. Poult Sci 2015; 94:1871-8. [PMID: 26047673 DOI: 10.3382/ps/pev138] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [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: 09/16/2014] [Accepted: 04/16/2015] [Indexed: 11/20/2022] Open
Abstract
This study was aimed at investigating the bioefficacy of organic compared with inorganic manganese (Mn) for eggshell quality. An amino acid-Mn complex or Mn sulfate monohydrate was used as the organic or inorganic Mn source. A total of six hundred forty-eight 50-wk-old layers (Hy-Line Brown) were divided into 9 groups; each group consisted of 6 replicates with 12 layers each. The feeding trial lasted 12 wk. During the first 4 wk of the feeding trial, the groups were fed a basal diet, which met the nutrient requirements of the layers, except for Mn. During the following 8 wk, 9 levels of Mn (inorganic Mn: 0, 25, 50, 100, and 200 mg/kg; organic Mn: 25, 50, 100, and 200 mg/kg) were used to supplement, respectively, in the basal diet on an equimolar basis. An exponential regression model was applied to calculate the bioefficacy of organic Mn compared with the inorganic Mn. Dietary supplementation with either organic or inorganic Mn did not influence egg production and feed efficiency of (P > 0.05), and eggshell quality did not exhibit a significant response to dietary supplementation with Mn sources at 56 and 58 wk (P > 0.05). Dietary supplementation with either organic Mn or inorganic Mn significantly enhanced the thickness, breaking strength, and elastic modulus of the eggshells compared with the control group at the end of 62 wk (P < 0.05). At the end of 62 wk, the bioefficacy of organic Mn was 357% (shell thickness), 406% (breaking strength), 458% (elastic modulus), and 470% (eggshell Mn), as efficacious as inorganic Mn at equimolar levels. This study suggests that organic Mn enhances eggshell quality in aged laying hens compared with inorganic Mn.
Collapse
Affiliation(s)
- J F Xiao
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - S G Wu
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - H J Zhang
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - H Y Yue
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - J Wang
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - F Ji
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - G H Qi
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| |
Collapse
|
4
|
Abstract
The low fertility of naked seed rice (NSR) was investigated by the following observations: somatic chromosome constitute, behavior of pollen mother cells (PMCs), the germination of mature pollen grains, the development of male and female gametes and the structure of the anther opening. The results indicated that somatic chromosomal number was 2n = 24, behavior of PMCs were normal and most of pollen grains could regularly develop further to mature male gametophytes in NSR. And dehiscence chamber and thickened endothecium cell (TEC) in numerous anthers of the NSR were developed abnormally after dicaryotic phase, result in few anthers complete opening and most partly opening or failure to opening, therefore much fewer of pollen grains attach on the stigma as compared with normal variety. Furthermore most of embryo sacs possessed abnormal structure and were sterile. All of above illustrated that the failure of the anther opening and the abortion of female gametophyte were main factors controlling the low seed-setting rate of the NSR.
Collapse
Affiliation(s)
- J G Wu
- Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, PR. China.
| | | | | | | |
Collapse
|
5
|
Abstract
Benign familial neonatal convulsions (BFNC) have been previously found to be associated with mutations within the coding region of KCNQ2. We have now cloned and analyzed the promoter region of the human KCNQ2 gene. 5'-RACE identified a transcription start site (TSS) located 200 bp upstream of the ATG start codon. The TSS is located close to a repetitive region containing seven copies of a degenerate 42-mer repeat. Several different luciferase (LUC) reporter plas- mids containing fragments from the KCNQ2 5'-flanking region were constructed and expressed in NT2N and SH-SY5Y cell lines. A core promoter region was found to be located between bp 20 and bp 74 upstream of the TSS. Neither the promoter region nor the repetitive region showed any mutations in 13 index patients from unrelated BFNC families.
Collapse
Affiliation(s)
- J F Xiao
- Institute of Human Genetics, University Hospital Bonn, Wilhelmstr. 31, D-53111 Bonn, Germany
| | | | | | | |
Collapse
|
6
|
Xia JH, Yang YF, Deng H, Tang BS, Tang DS, He YG, Xia K, Chen SX, Li YX, Pan Q, Long ZG, Dai HP, Liao XD, Xiao JF, Liu ZR, Lu CY, Yu KP, Deng HX. Identification of a locus for disseminated superficial actinic porokeratosis at chromosome 12q23.2-24.1. J Invest Dermatol 2000; 114:1071-4. [PMID: 10844547 DOI: 10.1046/j.1523-1747.2000.00978.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Disseminated superficial actinic porokeratosis is an autosomal dominant cutaneous disorder characterized by many uniformly small, minimal, annular, anhidrotic, and keratotic lesions. The genetic basis for this disease is unknown. Using a genomewide search in a large Chinese family, we identified a locus at chromosome 12q23.2-24. 1 responsible for disseminated superficial actinic porokeratosis. The fine mapping study indicates that the disseminated superficial actinic porokeratosis gene is located within a 9.6 cM region between markers D12S1727 and D12S1605, with a maximum two-point LOD score of 20.53 (theta = 0.00) at D12S78. This is the first locus identified for a genetic disease where the major phenotype is porokeratosis. The study provides a map location for isolation of a gene causing disseminated superficial actinic porokeratosis.
Collapse
Affiliation(s)
- J H Xia
- National Laboratory of Medical Genetics of China, Department of Neurology, Xiangya Hospital, Hunan Medical University, Changsha, China.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|