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Kok VC, Lee CK, Chiang YH, Wang MC, Lu YT, Cherng CC, Lee PY, Wang KB. Extensive-Stage Small Cell Carcinoma Transformation From EGFR Del19-Mutant Lung Adenocarcinoma on Gefitinib at the Twelfth-Year Follow-Up Case Report. Front Oncol 2021; 11:564799. [PMID: 33816221 PMCID: PMC8012892 DOI: 10.3389/fonc.2021.564799] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 03/01/2021] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION The acquired resistance mechanisms in patients with epidermal growth factor receptor (EGFR)-mutant lung cancer, particularly adenocarcinoma (ADC), following treatment with an EGFR tyrosine kinase inhibitor (TKI) have received extensive investigations. The phenotypic transformation to small cell carcinoma (SCCT) has been estimated to occur in approximately 3 to 10% of patients treated with an EGFR-TKI. The prognosis after SCCT is extremely poor. CASE STUDY We report about SCCT that occurred 45 months after the initial diagnosis of ADC in an East Asian never-smoker woman with advanced-stage EGFR Del-19-mutant lung ADC treated with combined chemoradiotherapy before the era of insurance coverage for EGFR-TKIs in this country and subsequently gefitinib; deletion at codon 746-750 in exon 19 of the EGFR gene was ascertained in the original formalin-fixed paraffin-embedded lung biopsy tissue. Spinal cord compression at thoracic-12 level from SCCT was successfully relieved with neurosurgical treatment, chemotherapy with etoposide and cisplatin, and radiotherapy, while gefitinib treatment was maintained. Eleven months later, SCCT relapsed in the lung parenchyma, which was resected and was found to be sensitive to second-line weekly topotecan. Prophylactic cranial irradiation was subsequently administered. SCCT was confirmed by MALDI-TOF MS analysis of formalin-fixed paraffin-embedded tissues demonstrating the same exon 19 deletion. At the 12th-year follow-up, the patient remains relapse free with very good performance status. The novelty of this case is the successful interdisciplinary team effort to correct the spinal cord compression by maintaining the patient in an ambulatory state, non-stop use of gefitinib justified by the presence of activating EGFR mutation in SCCT tumor cells, and aggressive dose-intensive chemotherapy and radiotherapy for the SCCT that leads to an unprecedented prolonged remission and survival. This case also supports the observation that SCCT is chemotherapy sensitive, and thus, re-biopsy or complete tumor excision is recommended to understand the mutation profiles of the current tumor. Aggressive prudent administration of systemic chemotherapy obtaining optimal dose intensity leads to the successful management of the patient.
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Affiliation(s)
- Victor C. Kok
- Division of Medical Oncology, KTGH Cancer Center, Kuang Tien General Hospital, Taichung, Taiwan
- Disease Informatics Research Group, Asia University Taiwan, Taichung, Taiwan
- *Correspondence: Victor C. Kok, ; orcid.org/0000-0003-3440-8154
| | - Chien-Kuan Lee
- Department of Pathology, Kuang Tien General Hospital, Taichung, Taiwan
| | - Yu-Hsin Chiang
- Division of Chest Surgery, Department of Surgery, Kuang Tien General Hospital, Taichung, Taiwan
| | - Ming-Chih Wang
- Department of Radiation Oncology, Kuang Tien General Hospital, Taichung, Taiwan
| | - Yen-Te Lu
- Department of Radiation Oncology, Kuang Tien General Hospital, Taichung, Taiwan
| | - Chiu-Chun Cherng
- Division of Neurosurgery, Department of Surgery, Kuang Tien General Hospital, Taichung, Taiwan
| | - Pei-Yu Lee
- Department of Diagnostic and Intervention Radiology, Kuang Tien General Hospital, Taichung, Taiwan
| | - Ke-Bin Wang
- Department of Nuclear Medicine, Kuang Tien General Hospital, Taichung, Taiwan
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Liu ZH, Chen LD, He YB, Xu B, Wang KB, Sun GX, Zhang ZH. Study of expression levels and clinical significance of miR-503 and miR-375 in patients with esophageal squamous cell carcinoma. Eur Rev Med Pharmacol Sci 2019; 23:3799-3805. [PMID: 31115006 DOI: 10.26355/eurrev_201905_17806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aims to investigate the expression levels and clinical significance of miR-503 and miR-375 in patients with esophageal squamous cell carcinoma. PATIENTS AND METHODS 40 cases of cancer tissues and adjacent tissues in patients with esophageal squamous cell carcinoma were collected from March 2017 to September 2017 in the Department of Gastroenterology in the First Affiliated Hospital of Henan Polytechnic University. qRT-PCR was used to analyze the expressions of miR-503 and miR-375 in cancer tissues and adjacent normal tissues. The association between their expressions and the gender, age, degree of tumor differentiation, TNM staging, presence or absence of lymph node metastasis, and other clinicopathological characteristics of patients with esophageal squamous cell carcinoma was analyzed. RESULTS The results showed that the expression level of miR-503 in esophageal squamous cell carcinoma tissues (6.83±2.14) was significantly higher than that in adjacent tissues (2.45±1.13). The expression level of miR-375 in esophageal squamous cell carcinoma tissues (3.75±1.06) was significantly lower than that in adjacent tissues (7.45±1.13). The expression levels of miR-503 and miR-375 in esophageal squamous cell carcinoma were related to the existence of lymph node metastasis, degree of differentiation of esophageal squamous cell carcinoma and TNM staging (p<0.001). There was no correlation between the expressions of miR-503 and miR-375 and the age, gender and tumor size of patients (p>0.05). CONCLUSIONS miR-503 was highly expressed in esophageal squamous cell carcinoma and miR-375 was lowly expressed in esophageal squamous cell carcinoma. miR-503 and miR-375 were closely related to the lymphatic metastasis, degree of differentiation and TNM staging of the tumor.
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Affiliation(s)
- Z H Liu
- Department of Gastroenterology, The Second People's Hospital of Jiaozuo City, The First Affiliated Hospital of Henan Polytechnic University, Jiaozuo, Henan, P.R. China.
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Zheng JY, Oluoch G, Riaz Khan MK, Wang XX, Cai XY, Zhou ZL, Wang CY, Wang YH, Li XY, Liu F, Wang KB. Mapping QTLs for drought tolerance in an F2:3 population from an inter-specific cross between Gossypium tomentosum and Gossypium hirsutum. Genet Mol Res 2016; 15:gmr8477. [PMID: 27525919 DOI: 10.4238/gmr.15038477] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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
Cotton is one of the most important natural fiber crops in the world. Its growth and yield is greatly limited by drought. A quantitative trait locus (QTL) analysis was therefore conducted to investigate the genetic basis of drought tolerance in cotton (Gossypium spp) using 188 F2:3 lines developed from an inter-specific cross between a wild cotton species, G. tomentosum, and an upland cotton, G. hirsutum (CRI-12). A genetic map was constructed using 1295 simple sequence repeat markers, which amplified 1342 loci, distributed on 26 chromosomes, covering 3328.24 cM. A field experiment was conducted in two consecutive years (2014 and 2015) and 11 morphological and physiological traits were recorded under water-limited (W1)/well-watered (W2) regimes at three growth stages (bud, flowering, and full boll). The traits measured included chlorophyll content, plant height, leaf area, leaf number, leaf fresh weight, leaf dry weight, boll weight, number of bolls per plant, and the number of fruiting branches. Sixty-seven and 35 QTLs were found under the W1 and W2 conditions, respectively. Of these, the majority exhibited partial dominance or over-dominance genetic effects for increasing the trait values. Four consistent QTLs were found under the W1 treatment on chromosomes 5, 8, 9, and 16, whereas no consistent QTL was found in W2. Thirteen QTL clusters were also identified on nine chromosomes (2, 3, 5, 6, 9, 14, 15, 16, and 21). These results will help to elucidate the genetic basis of drought tolerance in cotton.
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Affiliation(s)
- J Y Zheng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China.,Economic Crops Research Institute of Xinjiang Academy of Agricultural Science, Urumqi, Xinjiang, China
| | - G Oluoch
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China.,School of Biological and Physical Sciences, Jaramogi Oginga Odinga University of Science and Technology, Bondo, Kenya
| | - M K Riaz Khan
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China
| | - X X Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China
| | - X Y Cai
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China
| | - Z L Zhou
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China
| | - C Y Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China
| | - Y H Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China
| | - X Y Li
- Economic Crops Research Institute of Xinjiang Academy of Agricultural Science, Urumqi, Xinjiang, China
| | - F Liu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China
| | - K B Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of Chinese Academy of Agricultural Science, Anyang, Henan, China
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Wang KB, Sui H, Li W, Cui LM, Bai B. Effect of embolic microspheres in the treatment of primary hepatic carcinoma. J BIOL REG HOMEOS AG 2016; 30:505-510. [PMID: 27358139] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The purpose of this study was to evaluate the clinical effect of embolic microspheres in the treatment of primary hepatic carcinoma. Fifty-eight patients who were confirmed with primary hepatic carcinoma by imaging were retrospectively analyzed. They were firstly perfused with 50 mg of oxaliplatin and 40 mg of epirubicin. Embolic microspheres were then injected into the distal end of targeted blood vessels. After this procedure, dynamic observation was carried out until tumor stain disappeared. Liver function and blood indexes were reexamined on days 5, 6, 7 and 28 after treatment, and moreover, the liver was examined with Magnetic Resonance Imaging (MRI) or computed tomography (CT). Compared to traditional lipiodol embolization, embolic microspheres did not aggregate the damage on liver function and the imaging examination suggested necrosis of some tumor tissues. Embolic microspheres proved to be effective in treating primary hepatic carcinoma. It produces no damage on liver function and can lead to significant shrinkage of hepatic carcinoma and necrosis of some tumor tissues. Embolic microspheres, which merely block distal branches of tumor-feeding artery, can avoid collateral circulation induced by permanent blocking, thus achieve a good treatment effect.
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Affiliation(s)
- K B Wang
- Interventional department, the Second Hospital Affiliated Harbin Medical University, Harbin, China
| | - H Sui
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - W Li
- Department of Radiology, the Second Hospital Affiliated Harbin Medical University, Harbin, China
| | - L M Cui
- Interventional department, the Second Hospital Affiliated Harbin Medical University, Harbin, China
| | - B Bai
- Interventional department, the Second Hospital Affiliated Harbin Medical University, Harbin, China
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Liu F, Wang YH, Gao HY, Wang CY, Zhou ZL, Cai XY, Wang XX, Zhang ZS, Wang KB. Construction and characterization of a bacterial artificial chromosome library for the allotetraploid Gossypium tomentosum. Genet Mol Res 2015; 14:16975-80. [PMID: 26681044 DOI: 10.4238/2015.december.15.3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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
Gossypium tomentosum is a wild allotetraploid species with the (AD)5 genome. It is characterized by many useful traits including finer fiber fineness, drought tolerance, and Fusarium and Verticillium resistance. We constructed the first bacterial artificial chromosome library for Gossypium tomentosum. With high quality and broad coverage, this library includes 200,832 clones, with an average insert size of about 122 kb and fewer than 3% empty clones. Our library is approximately 10-fold the size of the (AD)5-genome (2400 Mb) and provides a 99.7% probability of isolating genes of interest or their sequences. Seven of eight simple sequence repeats markers that are located on five different chromosomes and linked with resistance to Verticillium wilt could amplify the 50 superpools and obtained one to five hits. This high capacity library will be an important genomic resource for classifying and analyzing the evolution of allotetraploid cotton species as well as for isolating disease-resistance and drought-tolerance genes.
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Affiliation(s)
- F Liu
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China.,College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - Y H Wang
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - H Y Gao
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - C Y Wang
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Z L Zhou
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - X Y Cai
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - X X Wang
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Z S Zhang
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - K B Wang
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
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Liu F, Zhou ZL, Wang CY, Wang YH, Cai XY, Wang XX, Zhang ZS, Wang KB. Genetic diversity and relationship analysis of Gossypium arboreum accessions. Genet Mol Res 2015; 14:14522-9. [PMID: 26600511 DOI: 10.4238/2015.november.18.15] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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
Simple sequence repeat techniques were used to identify the genetic diversity of 101 Gossypium arboreum accessions collected from India, Vietnam, and the southwest of China (Guizhou, Guangxi, and Yunnan provinces). Twenty-six pairs of SSR primers produced a total of 103 polymorphic loci with an average of 3.96 polymorphic loci per primer. The average of the effective number of alleles, Nei's gene diversity, and Shannon's information index were 0.59, 0.2835, and 0.4361, respectively. The diversity varied among different geographic regions. The result of principal component analysis was consistent with that of unweighted pair group method with arithmetic mean clustering analysis. The 101 G. arboreum accessions were clustered into 2 groups.
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Affiliation(s)
- F Liu
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - Z L Zhou
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - C Y Wang
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Y H Wang
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - X Y Cai
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - X X Wang
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Z S Zhang
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - K B Wang
- State Key Laboratory of Cotton Biology, China/Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, China
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Cai XY, Liu F, Zhou ZL, Wang XX, Wang CY, Wang YH, Wang KB. Characterization and development of chloroplast microsatellite markers for Gossypium hirsutum, and cross-species amplification in other Gossypium species. Genet Mol Res 2015; 14:11924-32. [PMID: 26505340 DOI: 10.4238/2015.october.5.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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
Cotton is an important economic crop worldwide; its fiber, commonly known as cotton lint, is the main natural source for the textile industry. Sixty chloroplast microsatellites were identified and characterized from the complete sequence of the Gossypium hirsutum chloroplast genome using a bioinformatic approach. Twenty chloroplast microsatellite loci were polymorphic in the 66 Gossypium germplasm accessions. A total of 85 alleles were detected, with allele numbers varying from 2-7 per locus. Polymorphism information content varied from 0.02-0.66, with a mean of 0.48. Additionally, transferability of the 20 polymorphic chloroplast microsatellite primers was evaluated in other 31 Gossypium species. Sixteen markers were successfully amplified across all species tested, while the remaining 4 markers cross-amplified in most species tested. These polymorphic chloroplast microsatellite markers may be useful tool for studies of individual identification, genetic diversity, evolution, conservation genetics, and molecular breeding in Gossypium.
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Affiliation(s)
- X Y Cai
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China
| | - F Liu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China
| | - Z L Zhou
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China
| | - X X Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China
| | - C Y Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China
| | - Y H Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China
| | - K B Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of the Chinese Academy of Agricultural Sciences, Anyang, China
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Sang M, Xie J, Qin XC, Wang WD, Chen XB, Wang KB, Zhang JP, Li LB, Kuang TY. High-light induced superoxide radical formation in cytochrome b₆f complex from Bryopsis corticulans as detected by EPR spectroscopy. J Photochem Photobiol B 2010; 102:177-81. [PMID: 21277495 DOI: 10.1016/j.jphotobiol.2010.11.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2010] [Revised: 10/25/2010] [Accepted: 11/02/2010] [Indexed: 12/18/2022]
Abstract
The generation of superoxide radical (O₂·⁻) in Cyt b₆f of Bryopsis corticulans under high light illumination was studied using electron paramagnetic resonance (EPR) spectroscopy. This could be evidenced by the addition of SOD which specifically reacted with O₂·⁻. The generation of O₂·⁻ was lost in the absence of oxygen and was found to be suppressed in the presence of NaN₃ and be scavenged by extraneous antioxidants such as ascorbate, β-carotene and glutathione which could also scavenged ¹O₂*. These results indicated that O₂·⁻ which produced under high light illumination in Cyt b₆f of B. corticulans might rise from a reaction which ¹O₂* could participated in. Also the photo-protection mechanism to Cyt b₆f complex by antioxidants which might contain in thylakoid was speculated.
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Affiliation(s)
- Min Sang
- Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P.R. China; Institute of Hydrobiology, Ji' nan University, Guangzhou 510632, P.R.China
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Sang M, Ma F, Xie J, Chen XB, Wang KB, Qin XC, Wang WD, Zhao JQ, Li LB, Zhang JP, Kuang TY. High-light induced singlet oxygen formation in cytochrome b(6)f complex from Bryopsis corticulans as detected by EPR spectroscopy. Biophys Chem 2009; 146:7-12. [PMID: 19861232 DOI: 10.1016/j.bpc.2009.09.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Revised: 09/24/2009] [Accepted: 09/26/2009] [Indexed: 11/16/2022]
Abstract
Electron paramagnetic resonance (EPR) spectroscopy was used to detect the light-induced formation of singlet oxygen ((1)O(2)*) in the intact and the Rieske-depleted cytochrome b(6)f complexes (Cyt b(6)f) from Bryopsis corticulans, as well as in the isolated Rieske Fe-S protein. It is shown that, under white-light illumination and aerobic conditions, chlorophyll a (Chl a) bound in the intact Cyt b(6)f can be bleached by light-induced (1)O(2)*, and that the (1)O(2)* production can be promoted by D(2)O or scavenged by extraneous antioxidants such as l-histidine, ascorbate, beta-carotene and glutathione. Under similar experimental conditions, (1)O(2)* was also detected in the Rieske-depleted Cyt b(6)f complex, but not in the isolated Rieske Fe-S protein. The results prove that Chl a cofactor, rather than Rieske Fe-S protein, is the specific site of (1)O(2)* formation, a conclusion which draws further support from the generation of (1)O(2)* with selective excitation of Chl a using monocolor red light.
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Affiliation(s)
- Min Sang
- Institute of Botany, Chinese Academy of Sciences, Beijing, PR China
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Pang Y, He CD, Liu Y, Wang KB, Xiao T, Wang YK, Zhu H, Wei B, Zhao N, Jiang Y, Wei HC, Chen HD. Combination of short CAG and GGN repeats in the androgen receptor gene is associated with acne risk in North East China. J Eur Acad Dermatol Venereol 2008; 22:1445-51. [PMID: 18624843 DOI: 10.1111/j.1468-3083.2008.02891.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Acne vulgaris is one of the most common skin disorders, and androgen is known to play a key role in the development of acne. However, the exact genetic mechanism by which androgen receptor (AR) gene affects acne development is still unclear. OBJECTIVE Our study aimed to investigate whether CAG and GGN polymorphism of the AR gene are associated with acne risk. PATIENTS AND METHODS Two hundred thirty-eight patients and 207 controls were included in the study. The repeat lengths of the AR gene were determined by GeneScan analysis. RESULTS Men with CAG < 23 and women with CAG < 24 had significant risk compared to those men with CAG > or = 23 [odds ratio (OR), 2.07; 95% confidence interval (95% CI), 1.21-3.54] and women with CAG > or = 24 (OR, 2.05; 95% CI, 1.18-3.56). In males, GGN repeats, considered independently of the CAG repeat, have no significant effect on the acne risk; however, when combined with CAG repeats, the acne patients exhibited significantly higher frequency of the haplotypes CAG < 23/GGN < or = 23 (OR, 3.33; 95% CI, 1.10-10.07; P < 0.05) compared with the controls. CONCLUSION Our results of this study strongly indicated that a shorter CAG repeat length and specific haplotypes of AR attributed to the risk of acne development and thus could serve as a susceptibility marker.
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Affiliation(s)
- Y Pang
- Department of Dermatology, No. 1 Hospital of China Medical University, Ministry of Health, Shenyang, China
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Zhu Y, Chen XB, Wang KB, Li YX, Bai KZ, Kuang TY, Ji HB. A simple method for extracting C-phycocyanin from Spirulina platensis using Klebsiella pneumoniae. Appl Microbiol Biotechnol 2007; 74:244-8. [PMID: 17013600 DOI: 10.1007/s00253-006-0636-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [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: 12/26/2005] [Revised: 08/15/2006] [Accepted: 08/16/2006] [Indexed: 11/27/2022]
Abstract
C-phycocyanin (C-PC) was extracted from fresh Spirulina platensis by deploying a species of non-pathogenic nitrogen-fixing bacteria, namely, Klebsiella pneumoniae. The algal slurry was neither washed nor centrifuged; the bacterial culture was poured into the slurry, the vessel sealed, and crude C-PC extracted after about 24 h. The extraction was clean and efficient, and the purity and concentration of C-PC proved to be of adequate quality.
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Affiliation(s)
- Y Zhu
- Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Photosynthesis Research Center, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
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Wang KB, Wang WK, Wang CY, Song GL, Cui RX, Li SH, Zhang XD. [Studies of FISH and karyotype of Gossypium barbadense]. Yi Chuan Xue Bao 2001; 28:69-75. [PMID: 11209715] [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: 02/19/2023]
Abstract
Based on the fluorescent in situ hybridization (FISH) of somatic chromosome of Gossypium barbadense with the probe of genomic DNA (gDNA) of Gossypium arboreum, two sets of chromosomes were easily distinguished by signals hybridized or not. The FISH directly proved that G. barbadense originated from two different diploid species, but was not in concordance with the former point that every chromosome of A sub-genome of tetraploid species was bigger than that of other sub-genome (D genome). The karyotype formula of G. barbadense based on its FISH was 2n = 4x = 52 = 38 m + 14sm(6sat). There were three pairs of satellite chromosomes which were all sm types. Their satellites located in short arms but originated differently from their chromosomes of sub-genome. Fragment translocations occured in the long arms of homologous chromosomes of number 5, 6 and 9 of A sub-genome. It was suggested that the translated fragments come from D sub-genome. The fragments are fairly large with the relative lengths of 19.21%, 17.69% and 12.88% of their whole chromosomes, respectively. At least five pairs of chromosomes in D sub-genome show some hybridized signals of gDNA probe of G. arboreum in their centromere regions, which indicated that there would be chromatin introgressions from A sub-genome.
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Affiliation(s)
- K B Wang
- Cotton Research Institute, CAAS, P R China, Anyang Henan 455112, China
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Shi WD, Hu JQ, Wang KB. [Medicolegal appraisals of 22 cases of ocular penetration]. Fa Yi Xue Za Zhi 1999; 15:153, 155-5, 190. [PMID: 12536448] [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: 02/28/2023]
Abstract
22 cases of ocular penetration injury were analyzed and a clinical criteria of the injury's degree was proposed. The reasons causing ocular penetration and the characteristics of injuries were discussed.
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Affiliation(s)
- W D Shi
- Qingdao Intermediate People's Court, Qingdao, Shandong 266071, P. R. China
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