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Huang XY, Chen JX, Ren Y, Luo HL, Xiang W, He XJ, Li TY. Postnatal feeding with high-fat combined with high-glucose diet induces precocious puberty in Sprague‒Dawley rat pups. Biochem Biophys Res Commun 2024; 693:149199. [PMID: 38118311 DOI: 10.1016/j.bbrc.2023.149199] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/23/2023] [Accepted: 10/30/2023] [Indexed: 12/22/2023]
Abstract
With economic development and overnutrition, including high-fat diets (HFD) and high-glucose diets (HGD), the incidence of obesity in children is increasing, and thus, the incidence of precocious puberty is increasing. Therefore, it is of great importance to construct a suitable animal model of overnutrition-induced precocious puberty for further in-depth study. Here, we fed a HFD, HGD, or HFD combined with a HGD to pups after P-21 weaning, while weaned pups fed a normal diet served as the control group. The results showed that HFD combined with a HGD increased the body weight (BW) of weaned rat pups. In addition, a HFD, HGD, and HFD combined with a HGD lowered the age at which vaginal opening occurred and accelerated the vaginal cell cycle. Furthermore, a HFD combined with a HGD increased the weight of the uterus and ovaries of weaned rat pups. Additionally, a HFD combined with a HGD promoted the development of reproductive organs in weaned female rat pups. Ultimately, a HFD combined with a HGD was found to elevate the serum levels of gonadotropin-releasing hormone (GnRH), luteinizing hormone (LH), follicle stimulating hormone (FSH), leptin, adiponectin, and oestradiol (E2) and increase hypothalamic GnRH, Kiss-1, and GPR54 expression levels in weaned female rat pups. The current study found that overnutrition, such as that through a HFD combined with HGD, could induce precocious puberty in weaned female rat pups. In addition, a rat model of overnutrition-induced precocious puberty was established.
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Affiliation(s)
- Xiao-Yan Huang
- Chongqing Key Laboratory of Child Nutrition and Health, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China; Department of Genetics, Metabolism and Endocrinology, Hainan Women and Children's Medical Center, Haikou, Hainan, China
| | - Ji-Xiong Chen
- Department of Medical Care Center, Hainan Provincial People's Hospital, Haikou, Hainan, China
| | - Yi Ren
- Department of Paediatrics, Haikou Maternal and Child Health Hospital, Haikou, China
| | - Hai-Ling Luo
- Department of Genetics, Metabolism and Endocrinology, Hainan Women and Children's Medical Center, Haikou, Hainan, China
| | - Wei Xiang
- Department of Genetics, Metabolism and Endocrinology, Hainan Women and Children's Medical Center, Haikou, Hainan, China.
| | - Xiao-Jie He
- Department of Paediatrics, The Second Xiangya Hospital, Central South University, Changsha, China.
| | - Ting-Yu Li
- Chongqing Key Laboratory of Child Nutrition and Health, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.
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Liao W, He XJ, Zhang W, Chen YL, Yang J, Xiang W, Ding Y. MiR-145 participates in the development of lupus nephritis by targeting CSF1 to regulate the JAK/STAT signaling pathway. Cytokine 2022; 154:155877. [DOI: 10.1016/j.cyto.2022.155877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 03/01/2022] [Accepted: 04/03/2022] [Indexed: 11/17/2022]
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He XJ, Huang FB, Xiang XP, Li JF. [Salivary gland microsecretory adenocarcinoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2022; 51:256-258. [PMID: 35249297 DOI: 10.3760/cma.j.cn112151-20210927-00714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- X J He
- Department of Pathology, the Second Affiliated Hospital Zhejiang University School of Medical, Hangzhou 310009, China
| | - F B Huang
- Department of Pathology, the Second Affiliated Hospital Zhejiang University School of Medical, Hangzhou 310009, China
| | - X P Xiang
- Department of Pathology, the Second Affiliated Hospital Zhejiang University School of Medical, Hangzhou 310009, China
| | - J F Li
- Department of Pathology, the Second Affiliated Hospital Zhejiang University School of Medical, Hangzhou 310009, China
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Huang XY, Chen JX, Ren Y, Fan LC, Xiang W, He XJ. Exosomal miR-122 promotes adipogenesis and aggravates obesity through the VDR/SREBF1 axis. Obesity (Silver Spring) 2022; 30:666-679. [PMID: 35170865 DOI: 10.1002/oby.23365] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 12/20/2022]
Abstract
OBJECTIVE This study examined the effects of miR-122-enriched exosomes on the expression of vitamin D3 receptor (VDR) and sterol regulatory element-binding transcription factor 1 (SREBF1) and their roles during adipogenesis. METHODS The roles of miR-122, SREBF1, and VDR were investigated during adipogenesis. The relationships between VDR and miR-122 or SREBF1 were assessed by dual-luciferase reporter and chromatin immunoprecipitation assays. The potential role of miR-122/VDR/SREBF1 was evaluated in high-fat diet-induced obese male mice. RESULTS High levels of miR-122 were found only in adipose tissue-derived exosomes (Exo-AT) and Exo-AT-treated cells. Overexpression of miR-122 promoted adipogenesis, and inhibition of miR-122 prevented adipogenesis by regulating VDR, SREBF1, peroxisome proliferator-activated receptor gamma, lipoprotein lipase, and adiponectin. Knockdown of Srebf1 or overexpression of VDR could inhibit adipogenesis. However, exosomal miR-122 could reverse their inhibitory effects. The dual-luciferase reporter assay and chromatin immunoprecipitation assays confirmed that VDR was a direct target of miR-122. It could bind to the BS1 region of the SREBF1 promoter and inhibit SREBF1 expression. Moreover, miR-122 inhibition could alleviate obesity in high-fat diet-induced obese male mice, possibly through upregulating the VDR/SREBF1 axis. CONCLUSION MiR-122-enriched Exo-AT promoted adipogenesis by regulating the VDR/SREBF1 axis.
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Affiliation(s)
- Xiao-Yan Huang
- Department of Genetics, Metabolism and Endocrinology, Hainan Women and Children's Medical Center, Haikou, Hainan Province, China
| | - Ji-Xiong Chen
- Department of Medical Care Center, Hainan Provincial People's Hospital, Haikou, Hainan Province, China
| | - Yi Ren
- Department of Pediatrics, Haikou Maternal and Child Health Hospital, Haikou, Hainan Province, China
| | - Li-Chun Fan
- Department of Child Healthcare, Hainan Women and Children's Medical Center, Haikou, Hainan Province, China
| | - Wei Xiang
- Department of Child Healthcare, Hainan Women and Children's Medical Center, Haikou, Hainan Province, China
- NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou, Hainan Province, China
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, Hainan Province, China
| | - Xiao-Jie He
- Institute of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
- Laboratory of Pediatrics Nephrology, Institute of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan Province, China
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Wang JY, Bai YP, Xing L, Piao YS, He XJ, Yue CL, Zhao XL, Liu HG. [Clinicopathological characteristics of SMARCB1(INI1)-deficient sinonasal carcinoma]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1240-1245. [PMID: 34719161 DOI: 10.3760/cma.j.cn112151-20210629-00469] [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: 11/05/2022]
Abstract
Objective: To investigate the clinicopathological characteristics, diagnosis, differential diagnosis and prognostic factors of SMARCB1 (INI1)-deficient sinonasal carcinoma (SDSC). Methods: Sixteen cases of SDSC diagnosed in the Department of Pathology, Beijing Tongren Hospital from January 2016 to September 2020 were enrolled. Ninety-nine cases of small round cell malignant tumors of the head and neck were selected as the control, including poorly-differentiated squamous cell carcinoma (n=10), poorly-differentiated adenocarcinoma (n=5), undifferentiated carcinoma (SNUC, n=4), NUT carcinoma (n=5), neuroendocrine carcinoma (n=10), and other non-epithelial tumors [olfactory neuroblastoma (n=10), rhabdomyosarcoma (n=10), NK/T-cell lymphoma (n=10), malignant melanoma (n=10), Ewing's sarcoma/primitive neuroectodermal tumor (EWS/PNET, n=5)] and non-keratinizing undifferentiated nasopharyngeal carcinoma (n=20). The clinical and pathologic characteristics of SDSC, and immunohistochemical (IHC) expression of broad-spectrum CKpan, CK7, CK8/18, CK5/6, p63, p40, p16, INI1, NUT and neuroendocrine markers (Syn, CgA, CD56) were evaluated. In situ hybridization (ISH) was used to detect EBER and fluorescence in situ hybridization (FISH) to detect INI1 gene deletion. Results: The 16 cases of SDSC accounted for 1.3% (16/1 218) of all malignant sinonasal tumors in the author's unit during this time period, and 2.4% (16/657) of all malignant epithelial tumors. Microscopically, there was no clear squamous and adenomatous differentiation, but "rhabdoid-like" cells, are often seen. All SDSC cases were positive for CKpan and CK8/18, negative for INI1; Epstein-Barr virus was not detected by ISH; and INI1 gene deletion was observed in all 11 SDSC patients with FISH. Twelve cases were followed up for 3-47 months. One died of tumor-related diseases half a year after diagnosis, and the remaining patients were alive with tumor, the longest survival time was 47 months. Conclusion: SDSC should be differentiated from a variety of poorly-differentiated tumors in the sinonasal area. Histologically, SDSC has no clear differentiation, but the tumor cells are characteristically basal-like or rhabdoid-like, with non-specific vacuoles, translucent or vacuolar nuclei, prominent nucleoli and necrotic foci. They are negative for INI1 IHC staining, and FISH demonstrates INI1 gene deletion. The clinical prognosis is still unclear, further studies on its biologic behavior and treatment methods are warranted.
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Affiliation(s)
- J Y Wang
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China
| | - Y P Bai
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China
| | - L Xing
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China
| | - Y S Piao
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China
| | - X J He
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China
| | - C L Yue
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China
| | - X L Zhao
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China
| | - H G Liu
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing 100730, China
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Wang Y, Wang YX, Xiong HL, Yang J, He XJ, Dong YF. [Successful delivery post multi-disciplinary care in a pregnant woman with Liddle syndrome]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:714-716. [PMID: 34256440 DOI: 10.3760/cma.j.cn112148-20201013-00813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Y Wang
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y X Wang
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - H L Xiong
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - J Yang
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - X J He
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Y F Dong
- Department of Cardiovascular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China Key Laboratory of Molecular Biology in Jiangxi Province, Nanchang 330006, China
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Xu ZQ, Ding Y, Huang XY, Xiang W, He XJ. CircELK4 Contributes to Lupus Nephritis by Acting as a miR-27b-3p Sponge to Regulate STING/IRF3/IFN-I Signaling. Inflammation 2021; 44:2106-2119. [PMID: 34091806 DOI: 10.1007/s10753-021-01487-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 12/09/2020] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 01/06/2023]
Abstract
Systemic lupus erythematosus (SLE) is a prototypic autoimmune disease and a common complication of SLE is lupus nephritis (LN) during which lupus autoantibodies and proinflammatory cytokines attack the kidney and cause renal dysfunction. The current treatments to LN are limited due to a poor understanding of the pathogenesis. Here, we studied the molecular mechanisms of LN by investigating the function of circELK4/miR-27b-3p axis. MRL/lpr mice and LPS-treated HK-2 cells were used as the mouse model and cell model of LN, respectively. Blood samples were collected from LN patients. qRT-PCR and western blot were used to measure expression levels of circELK4, miR-27b-3p, apoptosis-related proteins, cytokines, and STING/IRF-3/IFN-I signaling. ELISA was performed to examine levels of cytokines including IL-6 and TNF-α. H&E staining was used to examine kidney morphology. TUNEL staining and flow cytometry were used to determine cell apoptosis. Dual luciferase activity assay and RNA pull down were employed to validate the interactions of circELK4/miR-27b-3p and miR-27b-3p/STING. CircELK4 was elevated in LN mice, patients, and LPS-treated HK-2 cells. Knockdown of circELK4 attenuated renal injury in LN mice and LPS-induced HK-2 cell injury. CircELK4 directly bound to miR-27b-3p while miR-27b-3p targeted STING. Moreover, overexpression of circELK4 could partially reverse the effects of miR-27b-3p mimics on cell apoptosis and inflammation. Furthermore, circELK4/miR-27b-3p regulated renal cell damage via modulating STING/IRF3/IFN-I signaling. CircELK4 contributes to renal injury by promoting inflammation and cell apoptosis via acting as a miR-27b-3p sponge to modulate STING/IRF3/IFN-I signaling in LN.
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Affiliation(s)
- Zhi-Quan Xu
- Hainan Women and Children's Medical Center, No. 15, Longkunnan Road, Haikou, 570206, Hainan Province, People's Republic of China
| | - Yan Ding
- Department of Dermatology, Hainan Provincial Dermatology Disease Hospital, Haikou, 570206, Hainan Province, People's Republic of China
| | - Xiao-Yan Huang
- Hainan Women and Children's Medical Center, No. 15, Longkunnan Road, Haikou, 570206, Hainan Province, People's Republic of China
| | - Wei Xiang
- Hainan Women and Children's Medical Center, No. 15, Longkunnan Road, Haikou, 570206, Hainan Province, People's Republic of China. .,Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, NHC Key Laboratory of Control of Tropical Diseases (Hainan Medical University), No. 3, Xueyuan Road, Haikou, 570206, Hainan Province, People's Republic of China.
| | - Xiao-Jie He
- Institute of Pediatrics, The Second Xiangya Hospital, Central South University, No. 139, Renmin Middle Road, Changsha, 410011, Hunan Province, People's Republic of China. .,Laboratory of Pediatrics Nephrology, Institute of Pediatrics, The Second Xiangya Hospital, Central South University, No. 139, Renmin Middle Road, Changsha, 410011, Hunan Province, People's Republic of China.
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Jiao JC, Li L, Tao SG, He XJ, Meng LZ, Sun M, Qiu XL, Ma L. [Ruptured chordae tendineae of tricuspid valve in neonate with intractable persistent pulmonary hypertension: a case report and literature review]. Zhonghua Er Ke Za Zhi 2021; 59:294-298. [PMID: 33775048 DOI: 10.3760/cma.j.cn112140-20200917-00882] [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: 06/12/2023]
Abstract
Objective: To analyze the clinical characteristics and treatment of tricuspid valve prolapse caused by chordal rupture complicated with persistent pulmonary hypertension in neonates. Methods: The clinical data of a male neonate with tricuspid valve prolapse complicated with persistent pulmonary hypertension admitted to the Neonatal Intensive Care Unit of Children's Hospital of Hebei Province in November 2018 was analyzed retrospectively. Related literature up to September 2020 was searched with the strategy of "(neonate OR newborn) AND (tricuspid valve prolapse) AND (rupture OR necrosis) AND (papillary muscle OR chordae tendineae) AND (pulmonary hypertension)" in Wanfang, CNKI and PubMed database in Chinese and English. The characteristics of the disease were summarized. Results: A male full-term neonate was admitted due to presenting severe cyanosis for 9 hours. He was born by caesarean section and presented severe cyanosis and dyspnea at 10 min of ages, unresponsive to the positive airway pressure resuscitation. After 9 hours of mechanical ventilation, there was no improvement. Thus he was transferred to Children's Hospital of Hebei Province. On admission, the initial blood gas analysis showed an arterial partial pressure of oxygen of 22.5 mmHg (1 mmHg=0.133 kPa). The echocardiography revealed prolapsed anterior leaflet of tricuspid valve, severe tricuspid regurgitation (TR) and pulmonary artery hypertension, and right to left shunt via a patent foramen ovale. The arterial duct was closed. The chest X-ray was normal. The boy was treated with nitric oxide, milrinone, and continued mechanical ventilation initially. Addition of prostacyclin analog (treprostinil) on day 3 led to significant improvement of pulmonary blood flow, oxygenation, and stabilization, so that the extracorporeal membrane oxygenation therapy was avoided. At 11 months after birth, the boy underwent cardiac surgery. At surgery, the rupture of chordal tendineae in anterior leaflet of tricuspid valve was found. Tricuspid annuloplasty, valvuloplasty and repair of patent foramen ovale were successfully performed. The follow-up echocardiogram at postoperative 3 months showed only mild tricuspid insufficiency. The boy was well at last follow-up at 22 months of age with normal cognitive skill development. According to literature, 20 cases of papillary muscle or chordae tendineae rupture in neonates had been reported in 12 English papers. Among the total 21 neonates, there were 12 male infants and only one premature infant with gestational age of 33 weeks. They presented with profound cyanosis soon after birth. All of them received endotracheal intubation and mechanical ventilation. Other treatments included inhalation of nitric oxide, intravenous milrinone, vasoactive drugs, diuretics and prostacyclin, etc. Extracorporeal membrane oxygenation (ECMO) was used in 6 infants as a bridge to surgical treatment. Two cases reported earlier death of cardiopulmonary failure without operation and the rest 19 survived after surgery. The followed surgery or autopsy revealed that all of them had tricuspid valve prolapse, rupture of papillary muscle or chordae tendineae. Conclusions: The severe TR resulting from rupture of papillary muscle or chordate tendineae in neonates is rare and could cause severe hypoxemia. Early recognition, adequate cardiopulmonary support to stabilize the hemodynamic status and timely surgery can significantly reduce the mortality.
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Affiliation(s)
- J C Jiao
- Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - L Li
- Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - S G Tao
- Department of Cardiac Surgery, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - X J He
- Department of Ultrasound Diagnostics, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - L Z Meng
- Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - M Sun
- Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - X L Qiu
- Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - L Ma
- Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
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Wang Q, Liu MJ, Bu J, Deng JL, Jiang BY, Jiang LD, He XJ. miR-485-3p regulated by MALAT1 inhibits osteosarcoma glycolysis and metastasis by directly suppressing c-MET and AKT3/mTOR signalling. Life Sci 2021; 268:118925. [PMID: 33358903 DOI: 10.1016/j.lfs.2020.118925] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 12/07/2020] [Accepted: 12/15/2020] [Indexed: 12/25/2022]
Abstract
AIMS Osteosarcoma (OS) is an extremely malignant bone cancer with high incidence and rapid progression. This study aims to investigate the role and underlying mechanisms of MALAT1 and miR-485-3p in OS. MATERIALS AND METHODS qRT-PCR and Western blotting were utilized to measure the levels of miR-485-3p, MALAT1, c-MET, AKT3, p-mTOR, mTOR, glycolysis-related proteins or migration-related proteins. Colony formation and transwell assay were used to test the roles of miR-485-3p, MALAT1, c-MET and AKT3 in cancer cell proliferation, migration and invasion. Dual luciferase assay was used to validate the interactions of miR-485-3p/c-MET, miR-485-3p/AKT3, and MALAT1/miR-485-3p. Glucose uptake assay and measurement of lactate production were employed to determine the glycolysis process. Mouse tumour xenograft model was used to determine the effect of shMALAT1 and miR-485-3p mimics on tumour growth and metastasis in vivo. KEY FINDINGS miR-485-3p was decreased while c-MET, AKT3, and MALAT1 were increased in human OS tissues and cells. miR-485-3p bound directly to c-MET and AKT3 mRNAs and repressed OS cell glycolysis, proliferation, migration, and invasion through decreasing glycolysis-related proteins and migration-related proteins via inhibiting c-MET and AKT3/mTOR pathway. In addition, MALAT1 interacted with miR-485-3p and disinhibited c-MET and AKT3/mTOR signalling. Knockdown MALAT1 or overexpression of miR-485-3p restrained OS tumour growth and lung metastasis in vivo. SIGNIFICANCE miR-485-3p suppresses OS glycolysis, proliferation, and metastasis via inhibiting c-MET and AKT3/mTOR signalling and MALAT1 acts as a sponge of miR-485-3p. MALAT1 and miR-485-3p may be the key regulators in OS progression, and potential molecular targets for future OS therapy.
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Affiliation(s)
- Qing Wang
- Department of Respiratory and Critical Care Medicine, Changsha Central Hospital (University of South China Affiliated Changsha Central Hospital), Changsha 410004, Hunan Province, PR China
| | - Ming-Jiang Liu
- Department of Orthopaedics, Changsha Central Hospital (University of South China Affiliated Changsha Central Hospital), Changsha 410004, Hunan Province, PR China
| | - Jie Bu
- Orthopedics & Soft Tissue Department, Hunan Cancer Hospital, Changsha 410013, Hunan Province, PR China
| | - Jian-Liang Deng
- Department of Orthopaedics, Changsha Central Hospital (University of South China Affiliated Changsha Central Hospital), Changsha 410004, Hunan Province, PR China
| | - Bin-Yuan Jiang
- Central Laboratory, Changsha Central Hospital (University of South China Affiliated Changsha Central Hospital), Changsha 410004, Hunan Province, PR China
| | - Liang-Dong Jiang
- Department of Orthopaedics, Changsha Central Hospital (University of South China Affiliated Changsha Central Hospital), Changsha 410004, Hunan Province, PR China.
| | - Xiao-Jie He
- Laboratory of Pediatric Nephrology, Institute of Pediatrics, Central South University, Changsha 410011, Hunan Province, PR China.
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Lin DN, Li QL, He XJ, Li H, Liao LB, He H, Zhou LL, Li Z, Liu XL, Liu QF, Zhou HS, Cao R. [Diagnosis of adult Philadelphia chromosome-like acute lymphoblastic leukemia by fluorescence in situ hybridization]. Zhonghua Xue Ye Xue Za Zhi 2021; 41:749-755. [PMID: 33113607 PMCID: PMC7595857 DOI: 10.3760/cma.j.issn.0253-2727.2020.09.008] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
目的 建立应用荧光原位杂交技术(FISH)筛查成人Ph样急性淋巴细胞白血病(ALL)的体系。 方法 根据Ph样ALL的遗传学特征,设计了针对ABL1、ABL2、JAK2、EPOR、CRLF2、CSF1R、PDGFRB、P2RY8等基因断裂重排的FISH探针;对BCR-ABL1、ETV6-RUNX1、MLL基因断裂重排和E2A断裂重排均阴性的B-ALL,采用FISH进行Ph样ALL筛查,并结合流式免疫表型、靶向二代测序突变检测和RNA测序进行Ph样ALL诊断分析。 结果 2016年1月至2019年4月,南方医院血液科收治189例成人B-ALL,经FISH和(或)PCR检测,BCR-ABL1、ETV6-RUNX1、MLL断裂重排或E2A断裂重排阳性者共83例;其余106例患者接受Ph样ALL FISH探针筛查,其中,12例(11.3%)检出典型的Ph样ALL特异基因断裂重排,2例检出基因缺失。经RNA测序进一步验证,FISH检测Ph样ALL基因断裂重排结果灵敏度为71.4%,特异度为95.8%。综合免疫表型、靶向二代测序突变检测和RNA测序,共诊断融合基因阳性Ph样ALL 14例(13.2%)。 结论 FISH技术检测Ph样ALL具有较高的特异性,结合免疫表型和测序技术可完善诊断体系。
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Affiliation(s)
- D N Lin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Q L Li
- Department of Hematology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530000, China
| | - X J He
- Department of Hematology, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
| | - H Li
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - L B Liao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - H He
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - L L Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Z Li
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - X L Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Q F Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - H S Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - R Cao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
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Tian WD, Liu Q, Dai LZ, He XJ, Li Y, Zhao D. [Combined use of the Solitaire AB stent and Navien delivery catheter for mechanical thrombectory of acute vertebrobasilar artery occlusion]. Zhonghua Yi Xue Za Zhi 2019; 99:1494-1498. [PMID: 31137141 DOI: 10.3760/cma.j.issn.0376-2491.2019.19.012] [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: To investigate the efficacy and safety of mechanical thrombectory with a tri-axial system of the solitaire AB stent through a Navien delivery catheter to treatment acute vertebrobasilar artery occlusion. Methods: The clinical data of 16 consecutive patients with acute ischemic stroke of vertebrobasilar artery occlusion treated with the Solitaire AB device from March 2016 to March 2018 in Department of Neurosurgery, the First Affiliated Hospital, Medical College of Shihezi University, were extracted and then retrospectively analyzed.Recanalization rate as well as complications after treatment were analysized. Also, neurological functions of the patients before and after operation 1 weeks, measured by National Institute of Health stroke scale (NIHSS) score were compared via t test and the clinical outcomes were assessed by modified Rankin score (mRS) at 90 days after operation. Results: There were 10 male and 6 female patients with a median age of 59 years (ranging from 45 to 78 years).Fourteen patients resulted in successfully recanalization, and 2 cases failed both of whose onset to sheath mean time were 8.5 hours.The NIHSS score at 7 days was 13±7, which was significantly decreased compared to the admission NIHSS score 24±4 (P=0.000).No symptomatic intracranial hemorrhage case was found after operation.At 90 days, 8 patients achieved good outcome (mRS 0 to 2), one patient died (mRS 6),two patients moderately seriously disabled (mRS 4).Three patients resulted in moderate outcome (mRS 3).In 3 cases of death,2 patients died due to failure in recanalization,another patient died of severe pulmonary infection. Conclusion: The results suggest that this technique of a tri-axial system used of the Solitaire AB stent through a Navien delivery catheter can effectively retrieve clots from the occlusive artery and improves functional outcome in patients with acute ischemic stroke of vertebrobasilar artery.
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Affiliation(s)
- W D Tian
- Department of Neurosurgery, the First Affiliated Hospital, Medical College of Shihezi University, Shihezi 832008, China
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Huang SH, Zhang T, Zhao CG, Qin J, Qi P, Li FT, He XJ. Aclidinium bromide inhibits human glioma cell proliferation, migration and invasion and promotes apoptosis via the PI3K/AKT signaling pathway. Neoplasma 2018; 65:865-871. [PMID: 29940755 DOI: 10.4149/neo_2018_171117n705] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 03/15/2018] [Indexed: 11/08/2022]
Abstract
This study investigates the anti-cancer potential of Aclidinium bromide (INN) in glioblastoma. Glioblastoma cell lines U251 and U87 were treated with INN and its effects on cell migration and invasion were assessed by transwell migration and invasion assays., The effects of INN on proliferation and apoptosis were detected by CCK-8 kit and flow cytometry, and Western blotting determined anti-apoptotic proteins and signaling pathway changes. The results show that INN effectively suppressed proliferation, migration and invasion and induced apoptosis in U251 and U87 cells, respectively. Furthermore, the expression levels of the Bcl-2 anti-apoptotic protein was significantly decreased while Bax and caspase-3 expression were both increased in glioblastoma cells (all, p<0.05). Moreover, INN inactivated the PI3K/AKT signaling pathway by down-regulating the level of p-AKT, p-mTOR, P70 and CyclinD1 (all, p<0.05). In conclusion, our data suggests that INN could provide novel anticancer therapy in the treatment of glioblastoma.
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Affiliation(s)
- S H Huang
- Department of Orthopedics, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - T Zhang
- Department of Orthopedics, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - C G Zhao
- Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - J Qin
- Department of Orthopedics, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - P Qi
- Tangdu Hospital, Medical University of the Air Force, Xi'an, China
| | - F T Li
- Department of Orthopedics, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - X J He
- Department of Orthopedics, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
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Xu XJ, Tang Z, Zeng LR, Luo H, Chen QY, Li L, Lou Q, He XJ. Detection of hand-foot-mouth disease and its spatial-temporal Epidemiological characteristics with GIS platform. J BIOL REG HOMEOS AG 2018; 32:371-377. [PMID: 29685021] [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: 06/08/2023]
Abstract
The aim of this study is to investigate the main category of hand-foot-mouth (HFM) virus and analyze the distribution characteristics and susceptible population of HFM disease in China. Infants who have had HFM disease for less than 7 days were selected from the First Affiliated Hospital of Guangxi Medical University, Guangxi, China. Various specimens were collected from the infants, and EV71 and CA16 nucleic acid detections were performed using fluorescence quantitative assay. The positive results of the specimens were compared to determine the components of the pathogen. Moreover, the data of the target cases were analyzed based on Geographic Information System (GIS) to obtain the spatial-temporal epidemiological features of HFM disease in China. The detection rate of HFM virus in the throat swab, feces, bleb fluid and cerebrospinal fluid were 75%, 81.13%, 85.71% and 25%, respectively, indicating that the detection rate of virus in the bleb fluid was the highest. When the detection was based on more than one specimen, it was found that the positive rate was higher compared to detection based on a single specimen. The positive detection rate of EV71 in the target specimens was significantly higher than that of CA16 and mixed infection. Moreover, CA16 infection was usually accompanied by EV71 infection. As to spatial-temporal distribution, hand-foot-month disease broke out in the South of China in April, then spread to the north, and diminished in July. There was a notable difference in the number of cases between different provinces. EV71 and CA16 are the main viruses inducing HFM disease, especially EV71. Fluorescence quantitative polymerase chain reaction with high sensitivity can be used to detect the copy number of viruses, which is applicable to the early diagnosis of HFM disease. The incidence of HFM disease is notably different according to the influence of time, geographical space, gender and the living conditions of the children. Early diagnosis and treatment based on scientific methods are needed to reduce the incidence of severe diseases and avoid death.
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Affiliation(s)
- X J Xu
- Information and Management School, Guangxi Medical University, Nanning, Guangxi, China
| | - Z Tang
- Information and Management School, Guangxi Medical University, Nanning, Guangxi, China
| | - L R Zeng
- Information and Management School, Guangxi Medical University, Nanning, Guangxi, China
| | - H Luo
- Information and Management School, Guangxi Medical University, Nanning, Guangxi, China
| | - Q Y Chen
- Information and Management School, Guangxi Medical University, Nanning, Guangxi, China
| | - L Li
- Information and Management School, Guangxi Medical University, Nanning, Guangxi, China
| | - Q Lou
- Information and Management School, Guangxi Medical University, Nanning, Guangxi, China
| | - X J He
- Information and Management School, Guangxi Medical University, Nanning, Guangxi, China
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Shen WF, Jiang LB, Zhang M, Ma YF, Jiang GY, He XJ. Practical Experiences and Lessons of Medical Response to Major Disasters in China. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791502200503] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Introduction The construction of a medical emergency response system for disasters, which plays an important role in medical emergency response to multiple catastrophic events, has been sped up in China since the 2008 Wenchuan earthquake. However, the implementation process has also exposed some problems, particularly the disaster relief system. Methods In this review, we summarised and analysed emergency medical rescue efforts after major disasters in China in recent years, including 2008 Wenchuan earthquake, 2010 Yushu earthquake, ‘7.23’ Yongwen major railway line accident and 2013 Lushan earthquake. Results Critically wounded persons after Wenchuan and Lushan earthquake were managed according to the “four centralised strategies of care”, namely casualties, experts, resources and patients, which were designed to make the best use of limited resources. The collection of disaster response resources was not the sooner the better. The vulnerability and anti-disaster capacity of quake-hit zone and the degree of matching between critical elements of a response system and its supporting systems should be considered. The training of rescue teams in rural and high-altitude areas should be strengthened. Non-government organisations, the government and the public should join together to deal with the disaster. Conclusions In this paper, we evaluate the disaster relief systems in China through a retrospective analysis of medical practice of catastrophic events in recent years. This review suggests that there are a lot of experiences and lessons on how to prepare and respond to disasters in China, especially those in plateau mountain region and those considering emergency responses to catastrophic events. (Hong Kong j.emerg.med. 2015;22:270-280)
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Li H, Shen WF, He XJ, Wu JS, Yi JH, Ma YF. Evaluation of the Revised Trauma Score in Predicting Outcomes of Trauma Patients. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791302000407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Introduction The revised trauma score (RTS) was developed more than 20 years ago. Few studies investigated its usefulness in predicting trauma outcomes. This is especially true for the weighted version of RTS (RTS-w). The aim of this study was to test the predicting power of RTS-w for the trauma outcomes including mortality, admission to intensive care unit (ICU), hospital length of stay and ICU length of stay through a comparison with Injury Severity Score (ISS). Methods Descriptive data, variables related to the trauma scores and outcomes were collected. The statistical performance of RTS-w and ISS in predicting the trauma outcomes using receiver operating characteristics (ROC) curves and the area under the curve (AUC) with 95% confidence interval and p value were calculated. The Hosmer-Lemeshow chi-squared statistic was performed to measure its calibration. Results A total of 3323 patients were enrolled in the study. RTS-w was significantly better than ISS in predicting mortality of trauma patients (AUC: 0.934 vs.0.880, p<0.0001). However, for the other three outcomes, i.e. admission to ICU, hospital length of stay and intensive care unit length of stay, the performance of RTS-w was inferior to ISS. Conclusions The RTS-w is a better predictor of mortality than ISS. But its ability to predict other trauma outcomes is not as good as ISS. More studies are needed to identify the predictive ability of RTS-w for the outcomes other than mortality. Besides, updating the coefficients of the formula may make RTS-w more accurate.
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Liu H, He XJ, Li GJ, Ding QX, Liang WX, Fan J. [Effects of microRNA-145 on epithelial-mesenchymal transition of TGF-β1-induced human renal proximal tubular epithelial cells]. Zhongguo Dang Dai Er Ke Za Zhi 2017; 19:712-718. [PMID: 28606242 PMCID: PMC7390295 DOI: 10.7499/j.issn.1008-8830.2017.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 04/20/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the effects of microRNA-145 (miR-145) on epithelial-mesenchymal transition (EMT) of TGF-β1-induced human renal proximal tubular epithelial (HK-2) cells. METHODS The gene sequence of miR-145 was synthesized and cloned into pCMV-myc to construct recombinant plasmid pCMV-miR-145. HK-2 cells were divided into four groups: control (untreated), TGF-β1 (treated with TGF-β1), blank+TGF-β1 (treated with TGF-β1 after HK-2 cells transfected with blank plasmid) and miR-145+TGF-β1 (treated with TGF-β1 after HK-2 cells transfected with pCMV-miR-145 recombinant plasmid). Expression of miR-145 was detected by real-time PCR (RT-PCR). TGF-β1, Smad3, Smad2/3, p-Smad2/3, α-SMA, FN and type I collagen (Col I) protein levels were detected by Western blot. Concentrations of fibronectin (FN) and Col I in cell culture supernatants were measured using ELISA. RESULTS pCMV-miR-145 recombinant plasmid was successfully transfected into HK-2 cells. Compared with the control group, the miR-145+TGF-β1 group showed a significant up-regulation in the expression level of miR-145 (P<0.01). However, the TGF-β1 and blank+TGF-β1 groups showed a significant down-regulation in the expression level of miR-145 compared with that in the control and miR-145+TGF-β1 groups (P<0.01). Compared with the TGF-β1 and blank+TGF-β1 groups, the miR-145+TGF-β1 group showed significantly reduced levels of the signal proteins TGF-β1, Smad3, Smad2/3 and p-Smad2/3 (P<0.05), as well as significantly reduced levels of the biomarkers α-SMA, FN and Col I (P<0.05). Meanwhile, concentrations of FN and Col I in cell culture supernatants also decreased (P<0.05). CONCLUSIONS miR-145 modulates the EMT of HK-2 cells treated with TGF-β1, possibly by inhibition of the activation of TGF-β-dependent Smad signaling pathway.
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Affiliation(s)
- Hua Liu
- Department of Pediatrics, Nanshan Maternity and Child Health Care Hospital of Shenzhen, Shenzhen, Guangdong 518052, China.
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Lei ZX, Li BT, Li HA, Li XM, Xie MF, Huang T, Wang Q, Wang YZ, Lin QY, Zhou LR, Feng NC, Li X, Zhu DM, Hai YP, Cui L, Zhang YQ, Liu ZW, Wu SY, Chen YZ, Zhu KQ, He XJ, Xiang W. Relationship between catecholamine level and gene polymorphism of β1 adrenergic receptor G1165C in children with EV71 infection in hand foot and mouth disease. ASIAN PAC J TROP MED 2017. [PMID: 28647185 DOI: 10.1016/j.apjtm.2017.05.006] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE To investigate the relationship between the levels of plasma adrenaline and norepinephrine and gene polymorphism of β1 adrenergic receptor G1165C in children with enterovirus 71 (EV71) infection in hand foot and mouth disease (HFMD). METHODS The polymerase chain reaction (PCR) was used to detect the expression of gene polymorphism of β1 adrenergic receptor G1165C in vitro. The levels of plasma adrenaline and norepinephrine were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS The plasma norepinephrine level of severe group was significantly higher than the mild group in children with EV71 infection in HFMD (P < 0.05); however, the levels of plasma adrenaline in two groups had no statistical differences (P > 0.05); There was no significant difference in the distribution of β1 adrenergic receptor G1165C genotype and allele between EV71 infection group and healthy control group (P > 0.05). Further analysis of EV71 infection group by dividing it into mild and severe groups showed that there was no significant difference in the distribution of genotype and allele between these two groups as well (P > 0.05). There was no significant difference in the levels of epinephrine and norepinephrine in different genotypes of EV71 infection group (P > 0.05), and in the levels of plasma epinephrine and norepinephrine in the mild and severe groups (P > 0.05). CONCLUSIONS As the disease gets worse, the plasma norepinephrine level has a rising trend in children with EV71 infection in HFMD, which is an important indicator to evaluate the progress of the disease. However, the gene polymorphism of β1 adrenergic receptor G1165C have no significant correlation, not only with the susceptibility and severity of EV71 infection in hand, foot and mouth disease, but also with the levels of catecholamine.
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Affiliation(s)
- Zhi-Xian Lei
- Pediatric Intensive Care Unit, Maternal and Child Health Care Hospital of Hainan Province (Children's Hospital of Hainan Province), Haikou 570206, China
| | - Bang-Tao Li
- Pediatric Intensive Care Unit, Maternal and Child Health Care Hospital of Hainan Province (Children's Hospital of Hainan Province), Haikou 570206, China
| | - Hong-Ai Li
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China; Pediatric Nephrology, The Second Xiangya Hospital of Central South University, Changsha 410000, China
| | - Xiao-Ming Li
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Man-Fang Xie
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Ting Huang
- Pediatrics, Maternal and Child Health Care Hospital of Hainan Province (Children's Hospital of Hainan Province), Haikou 570206, China
| | - Qi Wang
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Ya-Zhou Wang
- Pediatric Intensive Care Unit, Maternal and Child Health Care Hospital of Hainan Province (Children's Hospital of Hainan Province), Haikou 570206, China
| | - Qiu-Yu Lin
- Pediatric Intensive Care Unit, Maternal and Child Health Care Hospital of Hainan Province (Children's Hospital of Hainan Province), Haikou 570206, China
| | - Li-Rong Zhou
- Pediatric Intensive Care Unit, Maternal and Child Health Care Hospital of Hainan Province (Children's Hospital of Hainan Province), Haikou 570206, China
| | - Nai-Chao Feng
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Xin Li
- Pediatric Intensive Care Unit, Maternal and Child Health Care Hospital of Hainan Province (Children's Hospital of Hainan Province), Haikou 570206, China
| | - Dao-Mou Zhu
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Yuan-Ping Hai
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Lan Cui
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China; Neonatal, Maternal and Child Health Care Hospital of Hainan Province (Children's Hospital of Hainan Province), Haikou 570206, China
| | - Ya-Qin Zhang
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Zhi-Wen Liu
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Shou-Ye Wu
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Yong-Zhao Chen
- Pediatrics, The Hainan Affiliated Hospital of University of South China, Haikou 570206, China
| | - Ke-Qing Zhu
- Labway Clinical Laboratory Shanghai Ltd, No. 74, Qing Chi Road, Changning District, Shanghai 200335, China
| | - Xiao-Jie He
- Pediatrics, The Affiliated Hospital of Hainan Medical University, Haikou 570206, China.
| | - Wei Xiang
- Pediatric Intensive Care Unit, Maternal and Child Health Care Hospital of Hainan Province (Children's Hospital of Hainan Province), Haikou 570206, China.
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Tang Z, Xu XJ, He XJ, Liang ZS, Liang WB, Li Y, Gao K. Analysis of hemorrhagic fever with renal syndrome and its pathogenic gene sequence based on geographic information system. J BIOL REG HOMEOS AG 2017; 31:431-438. [PMID: 28685549] [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: 06/07/2023]
Abstract
This study analyzed the temporal-spatial distribution characteristics, epidemiological characteristics and gene sequences of hemorrhagic fever with renal syndrome (HFRS) in Guangxi, with the intention of providing a theoretical and technical support for the prevention of HFRS. A map of the incidence of HFRS of different cities in Guangxi was drawn up using the Geographic Information System (GIS) to investigate the epidemiological characteristics and infection source of HFRS between 2013 and 2016. Guangxi has a low incidence of HFRS, and autumn and winter are the main high-incidence seasons. Cases of HFRS were reported in all regions in Guangxi except Laibin city between 2013 and 2016. The distribution of cases in the four years suggested that Guilin, Nanning, Hechi and Wuzhou were the main infected regions, especially the local areas in the north of Guilin. The nucleotide and amino acid of S fragment and M fragment of Hantaviruses (HV) detected were highly homologous, and no obvious variation was found. Through analyzing the space-time characteristics, epidemiological characteristics and gene sequence of HFRS in Guangxi, it was found that areas rich in water, grass and moisture, such as paddy fields, are the main active areas for the host of HFRS.
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Affiliation(s)
- Z Tang
- School of Information Management, Guangxi Medical University, Nanning, Guangxi, China
| | - X J Xu
- School of Information Management, Guangxi Medical University, Nanning, Guangxi, China
| | - X J He
- School of Information Management, Guangxi Medical University, Nanning, Guangxi, China
| | - Z S Liang
- School of Information Management, Guangxi Medical University, Nanning, Guangxi, China
| | - W B Liang
- School of Information Management, Guangxi Medical University, Nanning, Guangxi, China
| | - Y Li
- School of Information Management, Guangxi Medical University, Nanning, Guangxi, China
| | - K Gao
- Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, China
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Ding Y, Liao W, He XJ, Xiang W. Effects of 1,25(OH) 2 D 3 and vitamin D receptor on peripheral CD4 + /CD8 + double-positive T lymphocytes in a mouse model of systemic lupus erythematosus. J Cell Mol Med 2017; 21:975-985. [PMID: 28063200 PMCID: PMC5387123 DOI: 10.1111/jcmm.13037] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 08/01/2016] [Accepted: 10/14/2016] [Indexed: 12/15/2022] Open
Abstract
This study aims to explore effects of 1,25(OH)2D3 and vitamin D receptor (VDR) on peripheral CD4+/CD8+ double‐positive (DP) T lymphocytes in systemic lupus erythematosus (SLE). MRL‐LPr/LPr mice with SLE (n = 20) and normal MRL mice (n = 20) were assigned into the control group (normal mice, without feeding with 1,25(OH)2D3), the 1,25(OH)2D3 group (SLE mice, feeding with 1,25(OH)2D3), the VDR‐knock‐in + 1,25(OH)2D3 group (SLE mice, VDR‐knock‐in, feeding with 1,25(OH)2D3) and the VDR‐knockout group (normal mice, VDR‐knockout, without feeding with 1,25(OH)2D3) (n = 10 per group). Levels of T lymphocytes were measured by flow cytometry. The mRNA and proteins expressions of inflammatory factors were measured by qRT‐PCR and ELISA. Extracellular signal‐regulated kinase‐1/2 (ERK1/2) expression was measured by Western blotting. Compared with normal mice, SLE mice showed reduced levels of CD4+, CD4+/CD8+ ratio, and DP lymphocytes. The levels of SLE‐related indicators all increased significantly, followed with severe skin ulcers and urinary system infection. With the increase in time, skin ulcers and urinary system infection were significantly improved, levels of CD4+, CD4+/CD8+ ratio, and DP lymphocytes increased, and levels of SLE‐related indicators all decreased in the 1,25(OH)2D3 group. There were no significant changes in bioindicators in the control and the VDR‐knock‐in + 1,25(OH)2D3 groups. The symptoms of SLE gradually occurred in the VDR‐knockout group. This study demonstrates that VDR and 1,25(OH)2D3 could elevate CD4+/CD8+ DP T lymphocytes and reduce expressions of inflammatory factors, thus inhibiting the development and progression of SLE.
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Affiliation(s)
- Yan Ding
- Department of Dermatology, Maternal and Child Health Care Hospital of Hainan Province, Haikou, China
| | - Wang Liao
- Department of Cardiology, Hainan General Hospital, Haikou, China
| | - Xiao-Jie He
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, China.,Laboratory of Pediatric Nephrology, Institute of Pediatrics, Central South University, Changsha, China
| | - Wei Xiang
- Department of Pediatrics, Maternal and Child Health Care Hospital of Hainan Province, Haikou, China
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He XJ, Ding Y, Xiang W, Dang XQ. Roles of 1,25(OH)2D3 and Vitamin D Receptor in the Pathogenesis of Rheumatoid Arthritis and Systemic Lupus Erythematosus by Regulating the Activation of CD4+ T Cells and the PKCδ/ERK Signaling Pathway. Cell Physiol Biochem 2016; 40:743-756. [PMID: 27915349 DOI: 10.1159/000453135] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS The study aims to elucidate the roles of 1,25(OH)2D3 and vitamin D receptor (VDR) in the pathogenesis of rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE) by regulating the activation of CD4+ T cells and the PKCδ/ERK signaling pathway. METHODS From January 2013 to December 2015, a total of 130 SLE patients, 137 RA patients and 130 healthy controls were selected in this study. Serum levels of 1,25(OH)2D3 and VDR mRNA expression were detected by ELISA and real-time fluorescence quantitative PCR (RT-qPCR). Density gradient centrifugation was performed to separate peripheral blood mononuclear cells (PBMCs). CD4+ T cells were separated using magnetic activated cell sorting (MACS). CD4+T cells in logarithmic growth phase were collected and assigned into 9 groups: the normal control group, the normal negative control (NC) group, the VDR siRNA group, the RA control group, the RA NC group, the VDR over-expressed RA group, the SLE control group, the SLE NC group, and the VDR over-expressed SLE group. The mRNA and protein expressions of VDR, PKCδ, ERK1/2, CD11a, CD70 and CD40L were detected by RT-qPCR and Western blotting. Bisulfite genomic sequencing was conducted to monitor the methylation status of CD11a, CD70 and CD40L. RESULTS Compared with healthy controls, serum 1,25(OH)2D3 level and VDR mRNA expression in peripheral blood were decreased in SLE patients and RA patients. With the increase of concentrations of 1,25(OH)2D3 treatment, the VDR mRNA expression and DNA methylation levels of CD11a, CD70 and CD40L were declined, while the expressions of PKCδ, ERK1/2, CD11a, CD70 and CD40L were elevated in SLE, RA and normal CD4+T cells. Compared with the SLE contro, RA control, SLE NC and RA NC groups, the expressions of PKCδ, ERK1/2, CD11a, CD70 and CD40L decreased but DNA methylation levels of CD11a, CD70 and CD40L increased in the VDR over-expressed SLE group and VDR over-expressed RA group. However, compared with the normal control and normal NC groups, the expressions of PKCδ, ERK1/2, CD11a, CD70 and CD40L increased, but DNA methylation levels of CD11a, CD70 and CD40L decreased in the VDR siRNA group. Compared with the normal control group, the expressions of PKCδ, ERK1/2, CD11a, CD70 and CD40L increased, but DNA methylation levels of CD11a, CD70 and CD40L decreased in the SLE control and RA control groups. CONCLUSION Our study provide evidence that 1,25(OH)2D3 and VDR could inhibit the activation of CD4+ T cells and suppress the immune response of SLE and RA through inhibiting PKCδ/ERK pathway and promoting DNA methylation of CD11a, CD70 and CD40L.
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Affiliation(s)
- Xiao-Jie He
- Department of Pediatrics, the Second Xiangya Hospital, Central South University, Changsha, P.R. China
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Xiang W, Hu ZL, He XJ, Dang XQ. Intravenous transfusion of endothelial progenitor cells that overexpress vitamin D receptor inhibits atherosclerosis in apoE-deficient mice. Biomed Pharmacother 2016; 84:1233-1242. [PMID: 27810779 DOI: 10.1016/j.biopha.2016.10.042] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 10/07/2016] [Accepted: 10/17/2016] [Indexed: 10/20/2022] Open
Abstract
Endothelial progenitor cells (EPCs) are widely used for angiogenic therapies, as well as predictive biomarkers to assess cardiovascular disease risk. However, it is unknown that whether overexpressed vitamin D receptor (VDR) in EPCs could help EPCs counteracting atherosclerotic risks. Here, we study intravenous transplantation of genetically modified EPCs over-expressing VDR in regulating endothelial dysfunction and spontaneously arising atherosclerotic plaques of ApoE-deficient mice. Firstly, we found that over-expression of VDR in EPCs could reduce atherosclerotic plaque formation in transplanted ApoE-/- mice. In addition, the concentration of serum HDL-C in ovVDR-EPCs group was much higher than that in control groups (ApoE-/- mice without injection or injected with fresh medium or adenovirus vector). While concentrations of serum total cholesterol, LDL-C, apoB and Lp (a) were negatively correlated with the expression level of VDR. What's more, improved serum concentration of NO and elevated serum and vessel wall expression of eNOS were observed in ovVDR-EPCs group. Furthermore, reduced expression and activity of MMP2, and elevated expression and activity of TIMP2 were detected in ovVDR-EPCs group. Taken together, intravenous transfusion of EPCs that overexpress VDR significantly inhibited atherosclerosis in ApoE-deficient mice and could be used as a potential method for angiogenic therapy.
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Affiliation(s)
- Wei Xiang
- Department of Pediatrics, Hainan Provincial Maternal Hospital, Hainan province, 570006, China
| | - Zhi-Lan Hu
- Department of Nephropathy, Children's Medical Center, The Second Xiangya Hospital, Central South University, Hunan province, 410000, China
| | - Xiao-Jie He
- Department of Nephropathy, Children's Medical Center, The Second Xiangya Hospital, Central South University, Hunan province, 410000, China.
| | - Xi-Qiang Dang
- Department of Nephropathy, Children's Medical Center, The Second Xiangya Hospital, Central South University, Hunan province, 410000, China
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22
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Abstract
The aim of this study was to explore the inhibition of subcutaneously implanted human pituitary tumor cells in nude mice by LRIG1 and its mechanism. For this study, athymic nude mice were injected with either normal pituitary tumor RC-4B/C cells or LRIG1-transfected RC-4B/C cells. We then calculated the volume inhibition rate of the tumors, as well as the apoptosis index of tumor cells and the expression of Ras, Raf, AKt, and ERK mRNA in tumor cells. Tumor cell morphological and structural changes were also observed under electron microscope. Our data showed that subcutaneous tumor growth was slowed or even halted in LRIG1-transfected tumors. The tumor volumes were significantly different between the two groups of mice (χ2 = 2.14, P < 0.05). The tumor apoptosis index was found to be 8.72% in the control group and 39.7% in LRIG1-transfected mice (χ2 = 7.59, P < 0.05). The levels of Ras, Raf, and AKt mRNA in LRIG1-transfected RC-4B/C cells were significantly reduced after transfection (P < 0.01). Transfected subcutaneous tumor cells appeared to be in early or late apoptosis under an electron microscope, while only a few subcutaneous tumor cells appeared to be undergoing apoptosis in the control group. In conclusion, the LRIG1 gene is able to inhibit proliferation and promote apoptosis in subcutaneously implanted human pituitary tumors in nude mice. The mechanism of LRIG1 may involve the inhibition of the PI3K/ Akt and Ras/Raf/ERK signal transduction pathways.
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Affiliation(s)
- X Wang
- Department of Neurosurgery, The People's Hospital of Anyang City, Anyang, China
| | - X J He
- Department of Neurology, The First People's Hospital of Shangqiu, Shangqiu, China
| | - H Q Xu
- Department of Neurosurgery, The People's Hospital of Anyang City, Anyang, China
| | - Z W Chen
- ICU, Tangyin County People's Hospital, Anyang, China
| | - H H Fan
- ICU, Tangyin County People's Hospital, Anyang, China
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He XJ, Yang XN, Wu XY, Wu WS. [Mott cells in multiple myeloma: a case report and literature review]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:251-2. [PMID: 27033768 PMCID: PMC7342943 DOI: 10.3760/cma.j.issn.0253-2727.2016.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | | | - X Y Wu
- Department of Medical Laboratory, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
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Abstract
Sensory hair-cell development, function, and regeneration are fundamental processes that are challenging to study in mammalian systems. Zebrafish are an excellent alternative model to study hair cells because they have an external auxiliary organ called the lateral line. The hair cells of the lateral line are easily accessible, which makes them suitable for live, function-based fluorescence imaging. In this chapter, we describe methods to perform functional calcium imaging in zebrafish lateral-line hair cells. We compare genetically encoded calcium indicators that have been used previously to measure calcium in lateral-line hair cells. We also outline equipment required for calcium imaging and compare different imaging systems. Lastly, we discuss how to set up optimal imaging parameters and how to process and visualize calcium signals. Overall, using these methods, in vivo calcium imaging is a powerful tool to examine sensory hair-cell function in an intact organism.
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Affiliation(s)
- Q X Zhang
- National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, MD, United States
| | - X J He
- National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, MD, United States
| | - H C Wong
- National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, MD, United States
| | - K S Kindt
- National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, MD, United States
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25
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Yu D, Tao BB, Yang YY, Du LS, Yang SS, He XJ, Zhu YW, Yan JK, Yang Q. The IDO inhibitor coptisine ameliorates cognitive impairment in a mouse model of Alzheimer's disease. J Alzheimers Dis 2016; 43:291-302. [PMID: 25079795 DOI: 10.3233/jad-140414] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Indoleamine 2,3-dioxygenase (IDO), the first and rate-limiting enzyme in the kynurenine pathway (KP) of tryptophan catabolism, was recently established as one of the potential players involved in the pathogenesis of Alzheimer's disease (AD). Coptisine is a main pharmacological active constituent of the traditional Chinese medicinal prescription Oren-gedoku-to (OGT) which has therapeutic potential for the treatment of AD. Our recent studies have demonstrated that OGT significantly inhibited recombinant human IDO activity, which shed light on the possible mechanism of OGT's action on AD. Here, we characterized the effects of coptisine in an AD mouse model on the basis of its IDO inhibitory ability. Coptisine was found to be an efficient uncompetitive IDO inhibitor with a Ki value of 5.8 μM and an IC50 value of 6.3 μM. In AβPP/PS1 transgenic mice, oral administration of coptisine inhibited IDO in the blood and decreased the activation of microglia and astrocytes, consequently prevented neuron loss, reduced amyloid plaque formation, and ameliorated impaired cognition. Neuronal pheochromocytoma (PC12) cells induced with amyloid-β peptide 1-42 and interferon-γ showed reduction of cell viability and enhancement of IDO activity, while coptisine treatment increased cell viability based on its reversal effect on the enhanced activity of IDO. In conclusion, our present findings provide further evidence supporting the critical links between IDO, KP, and AD, and demonstrate coptisine, a novel IDO inhibitor, as a potential new class of drugs for AD treatment.
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Affiliation(s)
- Dan Yu
- State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai, China
| | - Bang-Bao Tao
- Department of Neurosurgery, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yun-Yun Yang
- State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai, China
| | - Li-Sha Du
- State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai, China
| | - Shuang-Shuang Yang
- State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai, China
| | - Xiao-Jie He
- State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai, China
| | - Yu-Wen Zhu
- State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai, China
| | - Jun-Kai Yan
- State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai, China
| | - Qing Yang
- State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai, China
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Wang ZH, Li XL, He XJ, Wu BJ, Xu M, Chang HM, Zhang XH, Xing Z, Jing XH, Kong DM, Kou XH, Yang YY. Delivery of the Sox9 gene promotes chondrogenic differentiation of human umbilical cord blood-derived mesenchymal stem cells in an in vitro model. ACTA ACUST UNITED AC 2014; 47:279-86. [PMID: 24652327 PMCID: PMC4075291 DOI: 10.1590/1414-431x20133539] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 12/11/2013] [Indexed: 12/11/2022]
Abstract
SRY-related high-mobility-group box 9 (Sox9) gene is a cartilage-specific
transcription factor that plays essential roles in chondrocyte differentiation and
cartilage formation. The aim of this study was to investigate the feasibility of
genetic delivery of Sox9 to enhance chondrogenic differentiation of human umbilical
cord blood-derived mesenchymal stem cells (hUC-MSCs). After they were isolated from
human umbilical cord blood within 24 h after delivery of neonates, hUC-MSCs were
untreated or transfected with a human Sox9-expressing plasmid or an empty vector. The
cells were assessed for morphology and chondrogenic differentiation. The isolated
cells with a fibroblast-like morphology in monolayer culture were positive for the
MSC markers CD44, CD105, CD73, and CD90, but negative for the differentiation markers
CD34, CD45, CD19, CD14, or major histocompatibility complex class II. Sox9
overexpression induced accumulation of sulfated proteoglycans, without altering the
cellular morphology. Immunocytochemistry demonstrated that genetic delivery of Sox9
markedly enhanced the expression of aggrecan and type II collagen in hUC-MSCs
compared with empty vector-transfected counterparts. Reverse transcription-polymerase
chain reaction analysis further confirmed the elevation of aggrecan and type II
collagen at the mRNA level in Sox9-transfected cells. Taken together, short-term Sox9
overexpression facilitates chondrogenesis of hUC-MSCs and may thus have potential
implications in cartilage tissue engineering.
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Affiliation(s)
- Z H Wang
- Department of Otolaryngology - Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - X L Li
- Department of Dermatology, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - X J He
- Department of Orthopedics, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - B J Wu
- Department of Otolaryngology - Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - M Xu
- Department of Otolaryngology - Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - H M Chang
- Department of Otolaryngology - Head and Neck Surgery, Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - X H Zhang
- Department of Otolaryngology - Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Z Xing
- Department of Clinical Dentistry, Faculty of Dentistry, Center for Clinical Dental Research, University of Bergen, Bergen, Norway
| | - X H Jing
- Department of Otolaryngology - Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - D M Kong
- Department of Otolaryngology - Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - X H Kou
- Department of Otolaryngology - Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Y Y Yang
- Department of Otolaryngology - Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
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Yao HB, Xu Y, Chen LG, Guan TP, Ma YY, He XJ, Xia YJ, Tao HQ, Shao QS. AKR1B10, a good prognostic indicator in gastric cancer. Eur J Surg Oncol 2013; 40:318-24. [PMID: 24406159 DOI: 10.1016/j.ejso.2013.12.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Revised: 12/15/2013] [Accepted: 12/16/2013] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND OBJECTIVES The aim of the study was to investigate the correlation between AKR1B10 expression and clinicopathological features of gastric cancer (GC). METHODS Real-time polymerase chain reaction (RT-PCR) was performed to determine AKR1B10 mRNA expression. AKR1B10 protein levels were measured by immunohistochemistry. RESULTS RT-PCR analysis confirmed that AKR1B10 was significantly down-regulated in gastric cancer compared with paired, normal mucosa. Immunohistochemistry revealed that the percentage of AKR1B10-positive specimens was lower in gastric carcinoma compared with normal specimens. The frequency of AKR1B10-positive GC specimens was higher in patients with tumor size <5 cm, no lymph node metastasis, no distant metastasis and lower tumor stages The mean survival time for patients in the AKR1B10-positive group was significantly higher compared with the AKR1B1-negative group. The 5-year survival rate for the AKR1B10-positive group was also significantly higher than for the AKR1B1-negative group. Cox regression analysis revealed that AKR1B10 expression is an independent prognostic factor of GC. CONCLUSIONS Expression of AKR1B10 in gastric cancer was significantly associated with tumor size, lymph node metastasis, distance metastasis and TNM stage, and AKR1B10 may be a good prognostic indicator in gastric cancer.
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Affiliation(s)
- H B Yao
- Department of Gastrointestinal Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - Y Xu
- Department of Gastrointestinal Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - L G Chen
- Department of Gastrointestinal Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - T P Guan
- Department of Gastrointestinal Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China
| | - Y Y Ma
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou 310014, Zhejiang, China
| | - X J He
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou 310014, Zhejiang, China
| | - Y J Xia
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou 310014, Zhejiang, China
| | - H-Q Tao
- Key Laboratory of Gastroenterology of Zhejiang Province, Hangzhou 310014, Zhejiang, China
| | - Q S Shao
- Department of Gastrointestinal Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, Zhejiang, China.
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Abstract
Gluteal muscle contracture (GMC) is a chronic fibrotic disease of gluteal muscles due to multiple etiologies. The main pathologic process is characterized by proliferation of fibroblasts and excessive accumulation of collagen in the extracellular matrix of the muscle. Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid and has been reported to be associated with various fibrotic diseases. However, the role of S1P in GMC remains unknown. Here in this article, High-performance liquid chromatography and immunohistochemistry were applied to evaluate S1P localization and expression in clinical samples from patients with GMC, Quantitative real time PCR, Western blot, and enzyme-linked immunosorbent assay were used to explore the link between transforming growth factor-beta1 (TGF-beta1), plasminogen activator inhibitor-1 (PAI-1) and S1P. The results showed that S1P was enhanced in contraction band (CB) tissues. Studies using the cell proliferation and transformation assay indicated that exogenous S1P stimulated CB fibroblast proliferation in a time-dependent manner and in higher concentration also in a dose-dependent manner. Furthermore, we demonstrated that S1P not only promoted collagen type I production, but also up-regulated mRNA and protein expression of transforming growth factor-beta1 and plasminogen activator inhibitor-1. These findings suggest that S1P may regulate increased synthesis of collagen and other fibrogenic factors, and significantly contributes to the process of gluteal muscle scarring in patients with GMC.
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Affiliation(s)
- C G Zhao
- Orthopedic Center of Chinese PLA, Urumqi General Hospital of Lanzhou Military Region, Urumqi, Xinjiang, China.
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Dang XQ, He XJ, Chen HX, He QN, Yi ZW. Number and function of peripheral blood endothelial progenitor cells in Henoch-Schönlein purpura nephritis children with different degrees of renal vascular lesions. Exp Ther Med 2013; 5:870-874. [PMID: 23403796 PMCID: PMC3570088 DOI: 10.3892/etm.2012.863] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Accepted: 12/07/2012] [Indexed: 11/10/2022] Open
Abstract
The aim of this study was to explore the correlation between different degrees of renal vascular lesions in children with Henoch-Schönlein purpura nephritis (HSPN) and changes in progenitor cell number and function in peripheral blood. Forty-eight HSPN patients were divided into three groups, mild, moderate and severe, according to the degree of renal vascular lesions. Peripheral blood mononuclear cells were isolated and cultured. Endothelial progenitor cells (EPCs) were identified by immunofluorescence assay. The number of EPCs and the migration and adhesion of EPCs were detected by flow cytometry. The numbers of peripheral blood CD34+, kinase insert domain receptor+ (KDR+) and CD133+ cells were lower in the severe and moderate vascular lesion groups compared with the mild vascular lesion group (all P<0.05) and were also lower in the severe vascular lesion group compared with the mild and moderate vascular lesion groups (all P<0.05). The adhesion and migration of EPCs were reduced in turn in the mild, moderate and severe groups. There were significant differences between the severe group and the mild and moderate groups (all P<0.05). Renal vascular lesions are involved in the occurrence and development of HSPN, while the number of EPCs, migration and adhesion of EPCs are important factors in renal vascular lesions.
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Affiliation(s)
- Xi-Qiang Dang
- Laboratory of Pediatric Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
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Hu SP, Zhang Z, Liu YG, Tian ZJ, Wu DL, Cai XH, He XJ. Pathogenicity and distribution of highly pathogenic porcine reproductive and respiratory syndrome virus in pigs. Transbound Emerg Dis 2012; 60:351-9. [PMID: 22762447 DOI: 10.1111/j.1865-1682.2012.01354.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The pathogenesis of highly pathogenic porcine reproductive and respiratory syndrome virus (PRRSV) strain (HuN4) is poorly understood. Therefore, highly pathogenic PRRSV strain (HuN4) and its derivative strain (HuN4-F112) (obtained by propagation in MARC145 cells for 112 passages) were inoculated into a total of 48 PRRSV-sero-negative pigs (age: 4-5 weeks) by the intranasal route. Virological, pathological and in situ hybridization analyses were performed. The results exhibited that pigs infected with HuN4 showed a loss of appetite, decrease in body weight, raised body temperature and respiratory symptoms, along with interstitial pneumonia lesions. In the HuN4 group, multifocal interstitial pneumonia with macrophage infiltration was found in the lung. The lesions in the lymph node were characterized by collapsed follicles, depletion of germinal centres and reduction in lymphocytes. Perivascular cuffing and glial nodules were observed in the brains of some pigs. By comparison, the HuN4-F112 group had milder lesions. PRRSV was detected in macrophages, alveolar epithelial cells and vascular endothelial cells in the tonsil and lymph nodes. The PRRSV amounts in the pigs infected with HuN4 were 10(5) -10(9) copies/ml in the blood and 10(10) -10(11) copies/g in the lung tissues, whereas the virus amounts with HuN4-F112 were 10(2.15) -10(3.13) copies/ml in the blood and 10(3.0) -10(3.6) copies/g in the lung. Our results demonstrate that the PRRS HuN4 virus infects alveolar epithelial cells, macrophages and vascular endothelial cells causing diffuse alveolar damage and lymph node necrosis. Its higher pathogenicity compared with HuN4-F112 virus may be explained in part by higher replication rate in the previously mentioned organs.
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Affiliation(s)
- S P Hu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
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31
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Davis LJM, He XJ, Bain AD, Goward GR. Studies of lithium ion dynamics in paramagnetic cathode materials using (6)Li 1D selective inversion methods. Solid State Nucl Magn Reson 2012; 42:26-32. [PMID: 22336040 DOI: 10.1016/j.ssnmr.2012.01.002] [Citation(s) in RCA: 3] [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: 08/04/2011] [Revised: 12/09/2011] [Accepted: 01/15/2012] [Indexed: 05/31/2023]
Abstract
The effectiveness of two different selective inversion methods is investigated to determine timescales of Li ion mobility in paramagnetic Li intercalation materials. The first method is 1D exchange spectroscopy, which employs a 90°-τ(1)-90° sequence for selective inversion of a Li resonance undergoing site exchange. The experiment is most easily applied when the first delay period, τ(1), is set to the frequency difference between two resonances undergoing ion exchange. This enables the determination of ion hopping timescales for single exchange pair systems only. To measure ion dynamics in systems having more than one exchange process, a second selective inversion method was tested on two paramagnetic Li intercalation materials. This second technique, replaces the 90°-τ(1)-90° portion of 1D EXSY with a long, selective shaped pulse (SP). Two paramagnetic solid-state materials, which are both cathode materials for lithion ion batteries, were chosen as model compounds to test the effectiveness of both the selective inversion methods. The first compound, Li(2)VPO(4)F, was chosen as it hosts two Li sites with 1-exchange process. The second model compound is a 3-site, 3-exchange process system, Li(2)VOPO(4). For the 2-site material, Li(2)VPO(4)F, the timescales of the single A-B exchange process were found to be within error of one another regardless of the inversion method. For the 3 Li-site material Li(2)VOPO(4), the three exchange processes, AB, BC, and AC, were found to be on the millisecond timescale as revealed using the SP method. These timescales were determined over a variable temperature range where activation energies extended from 0.6 ± 0.1 eV up to 0.9 ± 0.2 eV.
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Affiliation(s)
- L J M Davis
- McMaster University, Department of Chemistry and Chemical Biology, 1280 Main St. W. Hamilton, ON, Canada L8S 4M1
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He XJ, Wang WR, Zhang Y, Yang Q. The effect of radixin knockdown on the expression and efflux function of MRP2 in SGC-7901 cells. Eur J Pharm Sci 2012; 46:426-34. [PMID: 22469515 DOI: 10.1016/j.ejps.2012.03.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 03/12/2012] [Accepted: 03/18/2012] [Indexed: 12/18/2022]
Abstract
Multidrug resistance-associated protein 2 (MRP2, ABCC2) is the second member of the MRP transporter family and functions physiologically as an organic anion transporter. Earlier studies have confirmed that radixin, which is a member of the ERM (ezrin/radixin/moesin) family, modulates MRP2 localization at the canalicular membrane in hepatocytes. The relationship between radixin and MRP2 - particularly, the effect of radixin on the expression and function of MRP2 in cells or tissues that co-express all three ERM proteins - has not been well studied. To examine the role of radixin in the expression and function of MRP2 and other MRPs, we chose human gastric carcinoma SGC-7901 cells that express all three ERM proteins rather than hepatocytes, which predominantly express radixin. Radixin stable knockdown SGC-7901 cells, which were constructed by RNAi, exhibited no compensatory up-regulation of ezrin or moesin. The mRNA expression profiles of MRPs in the radixin knockdown cells were primarily evaluated by RT-PCR. Real time quantitative RT-PCR and western blot analysis revealed that the radixin deficiency caused the mRNA and protein expression levels of MRP2 to be reduced by about 50%, respectively. Accordingly, efflux and MTT assays showed that the radixin knockdown cells exhibited lower efflux ability with respect to calcein but no significant change in cell viability. In conclusion, among the MRP1-6 family members, radixin selectively modulates the expression and function of MRP2 in a system co-expressing all three ERM proteins.
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Affiliation(s)
- Xiao-Jie He
- State Key Laboratory of Genetic Engineering, Department of Biochemistry, School of Life Sciences, Fudan University, Shanghai 200433, China.
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Dong FQ, Zhang YH, Li ZA, Hou ZZ, He XJ, Guo YZ. Evaluation of normal fetal pulmonary veins from the early second trimester by enhanced-flow (e-flow) echocardiography. Ultrasound Obstet Gynecol 2011; 38:652-657. [PMID: 21337442 DOI: 10.1002/uog.8965] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/02/2011] [Indexed: 05/30/2023]
Abstract
OBJECTIVES To explore the feasibility of using enhanced-flow (e-flow) imaging technology to identify fetal pulmonary veins and establish gestational age-specific reference values at 12-40 weeks' gestation. METHODS The pulmonary venous internal diameter, peak systolic and diastolic flow velocities and visualization rate were analyzed in 332 normal fetuses at 12-40 weeks of gestation. Two-dimensional gray-scale (2D) ultrasound, color Doppler and e-flow imaging were used to detect the pulmonary veins in the four-chamber view by taking the lung as the penetration window. RESULTS The pulmonary veins could be visualized as early as 12 weeks' gestational age by e-flow imaging. The right and left pulmonary venous internal diameters and peak systolic and diastolic flow velocities increased with increasing gestational age. Between 12 and 40 gestational weeks, the internal diameter and both the systolic and diastolic flow velocities of the fetal right pulmonary vein were significantly larger than were those of the left vein (P < 0.05). Of 118 fetuses at 12-22 gestational weeks, the visualization rate of the four pulmonary veins (left superior and inferior, right superior and inferior) was 5.9% (7/118) by 2D ultrasound, 41.5% (49/118) by color Doppler and 61.9% (73/118) by e-flow imaging. The visualization rate by e-flow imaging was significantly higher than that using the other two techniques (P < 0.001). CONCLUSION e-flow imaging is apparently a feasible and promising technology with which to identify the fetal pulmonary veins in the early stages of the second trimester.
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Affiliation(s)
- F Q Dong
- Department of Functional Test, Children's Hospital of Hebei Province, Shijiazhuang, China.
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34
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Huang DL, Xu ZC, Dang XQ, Zeng XQ, He XJ, Yi ZW, He QN. [Relationship between renal Th1/Th2 ratio and renal microvascular injury in children with Henoch-Sch-nlein purpura nephritis]. Zhongguo Dang Dai Er Ke Za Zhi 2011; 13:273-277. [PMID: 21507292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To explore possible correlations between renal Th1/Th2 ratio and renal microvascular injury in children with Henoch-Sch-nlein purpura nephritis (HSPN). METHODS Thirty-two children with HSPN were enrolled. They were classified into four groups by renal pathology: HSPN class II (n=8), HSPN class IIIa (n=7), HSPN class IIIb (n=10) and HSPN class IV/V (n=7). Five patients undergoing nephrectomy due to trauma were used as the controls. INFγ, IL-4 and CD34 in the renal tissues were measured by immunohistochemical analysis. INFγ was used as a marker of Th1, IL-4 was used as a marker of Th2 and CD34 was used as a marker of microvessel. The renal microvessel density was evaluated according to the Weidner standard. The relationships among the local Th1/Th2 ratio, renal pathological grade, microvessel score and microvessel density were studied. RESULTS Immunohistochemical analysis showed a lower expression of INFγ and a higher expression of IL-4 in the HSPN groups than in the control group. The local Th1/Th2 ratio in the HSPN groups decreased and correlated significantly with the renal pathological grade. There were significant differences among four HSPN subgroups (P<0.05). Compared with the control group, the renal microvessel density in the HSPN class II and class IIIa groups increased significantly (P<0.05), but it decreased in the HSPN class IV/V group (P<0.05). The renal microvessel scores in the HSPN class IIIa, class IIIb and class IV/V groups increased significantly compared with those in the control and the HSPN classⅡ. The increased renal microvessel scores were associated with more severe renal pathological changes. A negative correlation was found between the local Th1/Th2 ratio and the microvessel density in kidneys (r=-0.921, P<0.01). CONCLUSIONS The decrease of Th1/Th2 ratio in kidneys might be responsible for renal microvascular injury in children with HSPN.
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Affiliation(s)
- Dan-Lin Huang
- Department of Pediatrics, Second Xiangya Hospital, Central South University, Changsha 410011, China.
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Xu ZQ, Yi ZW, Dang XQ, Wu XC, He XJ. [Relationship of 24-hour ambulatory blood pressure and rennin-angiotensin-aldosterone system in children with primary nephrotic syndrome]. Zhongguo Dang Dai Er Ke Za Zhi 2010; 12:788-792. [PMID: 20959043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To investigate the changes of blood pressure by 24-hour ambulatory blood pressure (ABP) monitoring in children with primary nephrotic syndrome (PNS) and explore the relationship of the changes in blood pressure with rennin-angiotensin-aldosterone system (RAAS) in these children. METHODS ABP and casual blood pressure (CBP) monitoring were performed in 114 children with PNS. Plasma levels of rennin activity (PRA), angiotensin II (AngII) and aldosterone (ALD) were measured. The correlation of plasma levels of PRA, AngII and ALD with ABP was evaluated. RESULTS Of the 114 children with PNS, 101 (88.6%) presented elevated blood pressure. Mild or severe masked hypertension was found in 45 children (39.5%). Eighty (70.2%) children showed non-dipper blood pressure. The index and load of systolic blood pressure were higher than those of diastolic blood pressure. The blood pressure index and blood pressure load during sleep were higher than those during wakefulness. The boy presented higher diastolic blood pressure index and load than girls. Decubitus blood PRA, AngII and ALD levels in children with PNS were significantly higher than normal controls. The group with elevated blood pressure presented significantly higher decubitus blood PRA, AngII and ALD levels than the group with normal blood pressure. AngII level was significantly positively correlated with the index and load of both systolic blood pressure and diastolic blood pressure. CONCLUSIONS The children with PNS present a high incidence of hypertension, with a large percentage of masked hypertension and non-dipper blood pressure. Systolic blood pressure increases more significantly than diastolic blood pressure. Blood pressure during sleep increases more significantly than that during wakefulness. Diastolic blood pressure increases more significantly in boys than in girls. RAAS activity is elevated and the elevated RAAS activity might increase the blood pressure mainly by AngII in children with PNS.
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Affiliation(s)
- Zhi-Quan Xu
- Laboratory of Pediatric Nephrology, Second Xiangya Hospital, Central South University, Changsha, China.
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Zeng XQ, Xu ZC, Dang XQ, He XJ, Yi ZW. [Expression of vascular endothelial growth factor is related to microvessel injury of renal interstitium in children with Henoch Schönlein purpura nephritis]. Zhongguo Dang Dai Er Ke Za Zhi 2009; 11:717-721. [PMID: 19755018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To investigate the relationship between vascular endothelial growth factor (VEGF) expression and microvessel injury of renal interstitium in children with Henoch-Schönlein purpura nephritis (HSPN). METHODS Thirty-two children with HSPN and who had not received glucocorticoid or immunodepressants treatment before hospitalization were enrolled. Five children undergoing nephrectomy due to renal trauma were used as the control group. Renal samples were stained by hematoxylin and eosin and renal pathological changes were evaluated semi-quantitatively. CD34 and VEGF expression was detected by immunohistochemistry. CD34 was used as the marker for endothelial cells of renal microvessels. The microvessel density (MVD) was calculated by CD34 immunostaining. RESULTS Compared with the control and the renal pathological grade II HSPN groups, MVD in the grade III and above HSPN groups decreased significantly, with an obvious reduction in MVD with the increased renal pathological grade (p<0.05). The renal microvessel score in the grades IIIa, IIIb, IV, and V HSPN groups decreased obviously compared with that in the control group. The renal microvessel score decreased with the increased renal pathological grade (p<0.05). VEGF expression in the grade II HSPN group was higher (p<0.05), while that in the grades IV and V HSPN group was lower than that in the control group (p<0.05). VEGF expression in the HSPN group showed a significant reduction with the increased renal pathological grade (p<0.05). There was a positive correlation between VEGF expression and MVD in renal tissue in the HSPN group (r=0.935, p<0.01). CONCLUSIONS The decreased expression of VEGF may be responsible for the renal pathological damage and microvessel injury in HSPN.
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Affiliation(s)
- Xue-Qi Zeng
- Pediatric Nephropathy Institute, Second Xiangya Hospital, Central South University/Clinical Center of Pediatric Renal Disease in Hunan Province, Changsha 410011 China
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Yang YH, He XJ, Chen SR, Wang L, Li EM, Xu LY. Changes of serum and urine neutrophil gelatinase-associated lipocalin in type-2 diabetic patients with nephropathy: one year observational follow-up study. Endocrine 2009; 36:45-51. [PMID: 19390997 DOI: 10.1007/s12020-009-9187-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Revised: 03/10/2009] [Accepted: 03/27/2009] [Indexed: 02/05/2023]
Abstract
We initiated the present work to explore whether neutrophil gelatinase-associated lipocalin (NGAL) could be used to predict the progression of diabetic nephropathy in type-2 diabetic patients. Seventy-four type-2 diabetic patients were divided into normo-, micro- and macro-albuminuria groups according to their 24 h-urinary albumin excreting rate. Serum and urine NGAL, and other clinical parameters were detected. Patients were followed and measurements were repeated 1 year later. An increased tendency of urine NGAL and a decreased tendency of serum NGAL were detected, from normo-albuminuria group to macro-albuminuria group. Serum NGAL was found to rise after follow-up. Moreover, urine NGAL was found to be correlated positively with cystatin C, urea nitrogen, and serum creatinine (SCr), and inversely with glomerular filtration rate (GFR), while serum NGAL correlated negatively with cystatin C and urea nitrogen, at both baseline and follow-up levels. The results indicate that NGAL correlates closely with renal function. Both serum and urine NGAL are sensitive for predicting the progression of type-2 diabetic nephropathy but they may change differently. Serum NGAL may be more useful in early detection and urine NGAL may be more meaningful in renal function assessment.
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Affiliation(s)
- Yi-Hua Yang
- Department of Endocrinology and Metabolism of the Second Affiliated Hospital, Shantou University Medical College, Shantou, 515041, Guangdong, China
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Cao Y, He XJ, Xiang W, Yi ZW. [Protective effect of catechin on renal microvessels in 5/6 nephrectomized rats and its mechanism]. ACTA ACUST UNITED AC 2009; 7:557-62. [PMID: 19583939 DOI: 10.3736/jcim20090612] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To investigate the effects of catechin on angiotensin-converting enzyme (ACE) activity, angiotensin II(Ang II) content and microvessel density (MVD) in renal tissues of 5/6 nephrectomized rats. METHODS Sixty SD rats were divided into 3 groups: sham-operated group, untreated group and catechin group. Animal model was reproduced by 5/6 nephrectomy. After 8- and 12-week administration, rats were sacrificed. Renal MVD was measured by immunohistochemical method with CD34 marking. Activities of ACE in plasma and renal cortices were measured by ultraviolet spectrophotometer, and Ang II contents in plasma and renal cortices were measured by radioimmunoassay. Glomerular sclerosis index (GSI) and tubule interstitial score (TIS) were calculated by semiquantitative integration with hematoxylin and eosin staining and periodic acid-Schiff staining. RESULTS After 8- and 12-week administration, the GSI and TIS in the catechin group were much less than those in the untreated group (P < 0.05, P < 0.01). MVDs around glomerulus and tubule at the end of the 8th and 12th week in the untreated group and the catechin group were much less than those in the sham-operated group (P < 0.01). The ACE activities and Ang II contents in plasma and renal cortices in the catechin group were much less than those in the untreated group (P < 0.01). By Pearson correlation analysis, we found that MVD had negative correlation with GSI, TIS, Ang II content, and ACE activity (P < 0.01), however, the ACE activity and Ang II content had positive correlation with GSI, TIS (P < 0.01). CONCLUSION Catechin can prevent the 5/6 nephrectomized rats from decreasing of MVD and inhibit the progress of glomerular sclerosis and interstitial fibrosis by inhibiting the activity of ACE and reducing the production of Ang II.
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Affiliation(s)
- Yan Cao
- Laboratory of Pediatric Nephropathy, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China
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Wu LY, Dang XQ, He XJ, Yi ZW. [Effects of clearance of superoxide anion by catechin on the expression of NO and eNOS and apoptosis in endothelial progenitor cells induced by angiotensin II]. Zhongguo Dang Dai Er Ke Za Zhi 2009; 11:476-480. [PMID: 19558814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To evaluate the effect of clearance of superoxide anion by catechin on the expression of nitrogen monoxidum (NO) and endothelial nitricoxide synthase (eNOS) and apoptosis in endothelial progenitor cells (EPCs) induced by angiotensin II (Ang II). METHODS The marrow endothelial progenitor cells of Sprague-Dawley rats were isolated and assigned to control (no treatment), Ang II treatment and Ang II + catechin treatment groups. After 48 hrs of culture, the concentration of O2*- in the supernate was measured by the NBT method, and NO concentration in the supernate was measured by the nitrate reductase method; the apoptosis rate of EPCs was detected by the TUNEL method; the mRNA expression of eNOS was detected by RT-PCR; the protein expression of eNOS was detected by Western blot analysis. RESULTS Ang II of 10-6 mol/L was determined as the suitable concentration for cell induction by the MTT test. Catechin of 400 mg/L was determined as an advisable intervention dosage. The apoptosis rate of EPCs in the control, the Ang II and the Ang II+catechin treatment groups were 2.48+/-0.12%, 54.18+/-0.77% and 16.87+/-0.35%, respectively, and there were significant differences among the three groups (P<0.01). The O2*- concentration in the Ang II and the Ang II+catechin treatment groups (81.7+/- 3.6 and 62.3+/- 2.2 U/L respectively) was significantly higher than that in the control group (33.7+/- 2.8 U/L) (P<0.01). An increased NO concentration was also found in the Ang II (189. 8+/- 9.0 micromol/L) and the Ang II+catechin treatment groups (276.4+/- 10.1 micromol/L) compared with that in the control group (105.8+/- 9.8 micromol/L) (P<0.01). There were significant differences in the concentrations of O2*- and NO between the Ang II and the Ang II+catechin treatment groups (P<0.05). The mRNA (P<0.05) and protein expression (P<0.01) of eNOS in the Ang II and the Ang II+catechin treatment groups increased significantly compared with those in the control group. The Ang II+catechin treatment group showed increased eNOS protein expression compared with the Ang II group (P<0.05). CONCLUSIONS Ang II may induce the generation of O2*-, inactivate NO and increase gene and protein expression of eNOS in EPCs. Catechin might decrease the apoptosis of EPCs through the effective clearance of O2*-and the reduction of NO inactivation and of eNOS protein uncoupling.
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Affiliation(s)
- Li-Yuan Wu
- Department of Pediatrics, Second Xiangya Hospital, Central South University, Changsha 410011, China
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Xiang W, He XJ, Wu M. [Plasma 25-(OH)D level and vitamin D receptor expression in apolipoprotein E-deficient mice]. Zhonghua Er Ke Za Zhi 2009; 47:301-302. [PMID: 19555571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Cao Y, Xu ZC, He XJ, Dang XQ, Yi ZW, Zeng XQ. [Protective effects of catechin on apoptosis of endothelial progenitor cells induced by H2O2 in rats]. Zhongguo Dang Dai Er Ke Za Zhi 2009; 11:61-64. [PMID: 19149926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE To study the effect of H2O2 on the proliferation and apoptosis of endothelial progenitor cells (EPCs) and the antogonistic effects of catechin on the cell apoptosis induced by H2O2 in rats. METHODS Immuno-fluoreascence assay was applied to detect CD34, CD133 and VEGFR-2 expression. EPCs of generation 2 were divided into control cells, H2O2-treated cells and catechin-H2O2-treated cells (H2O2: 100 mg/L; catechin: 10 mg/L). Genomic DNA was extracted by the conventional method after intervention for the analysis of apoptosis ladder pattern. The MTT assay was applied to detect proliferation rate of EPCs. RESULTS The cultured cells at day 10 expressed CD34, CD133 and VEGFR-2. DNA apoptosis ladder pattern appeared in H2O2-treated cells 2 days after intervention. After 3 days of intervention DNA apoptosis ladder pattern appeared in both H2O2-treated cells and H2O2-catechinjtreated cells, with more ladders and grayer scale in H2O2 -treated cells. Compared with the controls, H2O2-treated cells and H2O2-catechin-treated cells showed significantly decreased proliferation rate (p<0.01), with the lowest proliferation rate at the 2nd day (p<0.05). The H2O2-catechin-treated cells showed increased proliferation rate than H2O2-treated cells at the 1st, 2nd and 3rd days. CONCLUSIONS H2O2 may impair EPCs proliferation and induce EPCs apoptosis. Catechin may increase the capacity of EPCs for the resistance to apoptosis induced by H2O2.
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Affiliation(s)
- Yan Cao
- Laboratory of Pediatric Nephropathy, Second Xiangya Hospital, Central South University, Changsha 410011, China
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Zeng ZF, Yi ZW, He QN, Wu XC, Dang XQ, He XJ, Mo SH. Retrovirus-mediated expression of enhanced green fluorescent protein in rat bone marrow stem cells. Shijie Huaren Xiaohua Zazhi 2008; 16:1008-1011. [DOI: 10.11569/wcjd.v16.i9.1008] [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
AIM: To provide basis for the study of stem cell transplantation mechanism by observing the expression of enhanced green fluorescent protein (EGFP) gene mediated by retrovirus in SD rat bone marrow stromal cells (BMSCs).
METHODS: Density gradient centrifugation was conducted to obtain rat BMSCs which were then induced in the adipogenic direction. Their surface antigen and the adipogenic-differentiation potential were detected by oil red O staining. On the basis of the above results, BMSCs were transfected with the recombinant retrovirus pLEGFP-N1 containing EGFP. The morphologic changes of the cells, the expression time and intensity of fluorescent light were observed. The transfection efficiency was calculated.
RESULTS: The morphology and purity of the obtained rat BMSCs were good. The adipocytes were obviously observed after adipogenic induction. EGFP was successfully expressed after BMSCs were transfected with the retroviral vector pLEGFP-N1. The labeled cells were easy to observe within 4 wk.
CONCLUSION: Retrovirus is an ideal vector for high transfection efficiency and long period expression of target genes.
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Zhang GZ, Wu XC, Yi H, Peng XJ, Dang XQ, He XJ, Yi ZW. [Relationship between clinical manifestations and renal pathology in children with Henoch-Schonlein purpura nephritis]. Zhongguo Dang Dai Er Ke Za Zhi 2007; 9:129-32. [PMID: 17448308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
OBJECTIVE This study investigated the clinical manifestations and renal pathological findings of 95 children with Henoch-Schonlein purpura nephritis (HSPN) in order to explore the relationship between clinical manifestations and renal pathology in HSPN. METHODS According to clinical manifestations, 95 HSP patients were classified into six clinical groups: 1) normal urine analysis; 2) isolated hematuria or proteinuria; 3) proteinuria with hematuria; 4) acute nephritis; 5) nephrotic syndrome; 6) acute nephritis with over 50 mg/(kg.d) of proteinuria. The severity of the renal pathological findings was determined based on the classification of the International Study of Kidney Disease (ISKDC), including grades I-VI. The relationship between clinical manifestations and the severity of renal pathological findings was studied. RESULTS Nephrotic syndrome was the most common clinical diagnosis (26 cases), followed by proteinuria with hematuria (23 cases), normal urine analysis (20 cases), isolated hematuria or proteinuria (15 cases), acute nephritis with over 50 mg/(kg.d) of proteinuria (7 cases) and acute nephritis (4 cases). Twenty-five out of 26 patients with nephrotic syndrome had an ISKDC classification of grade III-IV. All of the four patients with acute nephrits had a classification of grade IIIb. The 7 cases of acute nephritis with over 50 mg/(kg.d) of proteinuria had a classification of grade IIIa-V. The 20 patients with normal urine analysis had a classification of grade Iia- IIIb. There were no significant differences in ISKDC classification among the patients with normal urine analysis, isolated hematuria or proteinuria, and hematuria plus proteinuria. As the course progressed, the degree of renal pathological changes in patients with isolated hematuria or proteinuria and hematuria plus proteinuria became more serious. Of all the 95 patients, 58% had co-deposition of immunoglobulins A, G and M. The percentage of co-deposition of immunoglobulins A, G and M was related to the disease course and the severity of renal pathological findings. CONCLUSIONS HSPN children with nephrotic syndrome or acute nephritis with or without proteinuria had relatively severe renal pathological changes. The clinical manifestations were not always in parallel with the severity of renal pathological findings in HSPN children. With the course progressing, the renal pathological changes tended to be serious. The severe renal pathological manifestations came with co-deposition of immunogolobulins A, G and M in the glomerulin.
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Affiliation(s)
- Guo-Zhen Zhang
- Laboratory of Pediatric Nephrology, Second Xiangya Hospital of Central South University, Changsha, China
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Zhang JJ, Yi ZW, Dang XQ, He XJ, Wu XC. [Mobilization effects of SCF along with G-CSF on bone marrow stem cells and endothelial progenitor cells in rats with unilateral ureteral obstruction]. Zhongguo Dang Dai Er Ke Za Zhi 2007; 9:144-8. [PMID: 17448311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
OBJECTIVE To study the mobilization effects of stem cell factor (SCF) along with granulocyte colony-stimulating factor (G-CSF) on bone marrow stem cells and endothelial progenitor cells in rats with unilateral ureteral obstruction (UUO). METHODS Fifty-six healthy male Wistar rats were randomly divided into seven groups: control, SCF, G-CSF, SCF+G-SCF, Sham-operated, UUO and UUO+SCF+G-CSF groups (n=8 each). The rats from the control, SCF, G-CSF and SCF+G-CSF groups were hypodermically injected with normal saline (2 mL/kg), SCF (200 microg/kg), G-CSF (200 microg/kg) and SCF along with G-CSF respectively for 5 days. The rats from the UUO and UUO+SCF+G-CSF groups were subjected to the ligation of right ureter and then were hypodermically injected with normal saline (2 mL/kg) and SCF (200 microg/kg)+G-CSF (200 microg/kg) respectively for 5 days. The sham-operated group had the same operative approach as the UUO and the UUO+SCF+G-CSF groups but the right ureter was not ligated. After operation they received a hypodermical injection of 2 mL/kg normal saline for 5 days. Five days later blood samples were collected. The percentages of CD34+ and CD34+/CD133+ cells in intravenous blood mononuclear cells were detected by flow cytometry. Serum contents of glutamate-pyruvate transaminase (GPT), glutamic oxalacetic transaminase (GOT), urea nitrogen and creatinin were measured. RESULTS Except for the sham-operated group, the other five groups (SCF, G-CSF, SCF+G-SCF, UUO and UUO+ SCF+G-CSF groups) had significantly higher percentage of CD34+ cells and CD34+/CD133+ cells in intravenous blood mononuclear cells than the control group (P < 0.05). There were significant differences in the percentage of CD34+ cells and CD34+/CD133+ cells among the five groups (P < 0.05). The UUO+SCF+G-CSF group showed the highest percentage of CD34+ cells and CD34+/CD133+ cells, followed by the SCF+G-CSF group. There were no significant differences in serum contents of GPT, urea nitrogen and creatinin among the seven groups. Except the UUO group showed higher GOT contents, there were no significant differences in the GOT contents among the other six groups. CONCLUSIONS The mobilization effects of SCF and G-CSF on bone marrow stem cells and endothelial progenitor cells were not always in paraller. A combination of SCF and G-CSF can effectively mobilize stem cells and endothelial progenitor cells, and side effects were not found in the liver and the kidney.
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Affiliation(s)
- Jian-Jiang Zhang
- Laboratory of Pediatric Nephrology, Second Xiangya Hospital, Cenrtal South University, Changsha, China
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Zhang GP, Dang XQ, Yi ZW, He XJ, Zhang JJ, Wu XC, Mo SH. [Role of mast cells in the development of renal interstitial fibrosis in children with Henoch-Schonlein purpura nephritis]. Zhongguo Dang Dai Er Ke Za Zhi 2007; 9:125-8. [PMID: 17448307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
OBJECTIVE To investigate the role of mast cells in the development of renal interstitial fibrosis in children with Henoch-Schonlein purpura nephritis (HSPN) and possible mechanisms. METHODS Paraffin-embedded renal biopsy tissue sections from 20 children with HSPN were examined for the levels of tryptase-beta and transforming growth factor-beta1 (TGF-beta1) by immunohistochemical staining. Mast cells were counted by toluidine blue staining. Masson staining was used to assess the level of renal interstitial fibrosis and renal histopathological scores. Normal renal tissue sections from 5 nephrectomized children for nephroma were used as control group. RESULTS The percentages of positive tryptase-beta cellsand mast cells and the TGF-beta1 expression in the HSPN group were significantly higher than those in the control group (P < 0.05). The percentages of positive tryptase-beta cells and mast cells and the TGF-beta1 expression in renal tissue were positively correlated with the glomeruli histopathological score (r =0.940, 0.920, 0.937, respectively; P < 0.05) and were also positively correlated with the histopathological score of renal interstitium (r=0.903, 0.859, 0.948, respectively; P < 0.05). The level of renal interstitial fibrosis was positively correlated with the percentages of positive tryptase-beta cells and mast cells and the expression of TGF-beta1 (r =0.790, 0.766, 0.858, respectively; P < 0.05). There was a positive correlation between the percentages of positive tryptase-beta cells and mast cells (r =0.941, P < 0.05), between the percentage of positive tryptase-beta cells and the TGF-beta1 expression (r =0.897, P < 0.05) and between the percentage of positive mast cells and the TGF-beta1 expression (r=0.942, P < 0.05). CONCLUSIONS Tubulointerstitial mast cell infiltration is associated with the development of renal interstitial fibrosis in children with HSPN. Mast cells together with TGF-beta1 and mast cell-derived tryptase-beta may be involved in the development of the renal interstitial fibrosis in HSPN.
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Affiliation(s)
- Gao-Ping Zhang
- Department of Respiratory, Children's Hospital of Jiangxi Province, Nanchang, China.
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Dang XQ, Yi ZW, He XJ, Wu XC, Cao Y, Mo SH, He QN, Guan FJ, Huang DL. [Clinicopathologic characteristics of 1,316 children with renal disease]. Zhongguo Dang Dai Er Ke Za Zhi 2007; 9:117-21. [PMID: 17448305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
OBJECTIVE To investigate the clinicopathologic characteristics of childhood renal diseases. METHODS A retrospective analysis of 1316 renal biopsies performed over the past 20 years was performed. RESULTS Of the 1316 patients, 383 (29.09% ) were diagnosed as nephrotic syndrome, 291 (22.00%) as acute nephritis syndrome, 224 (17.21%) as isolated hematuria, 209(15.87%) as purpura nephritis, and 96 (7.30% ) as hepatitis B virus-associated nephritis . Mesangial proliferation was the most common pathological change (756 cases; 57.45%), followed by IgA nephropathy (113 cases; 8.59%), endothelial capillary proliferation(112 cases; 8.51%), membranous nephropathy (66 cases; 5.02%), and various minor and minimal changes (59 cases; 4.48%). Alport syndrome, congenital nephrotic syndrome, thin basement membrane nephropathy, fibrillary glomerulopathy disease, and Fabry disease were confirmed by electronic microscopy. IgA, IgM and C1q nephropathy were definitely diagnosed using immune histochemistry or immunofluorescent. A diagnosis of primary glomerular disease was made in 69.53% of the cases (915 cases); secondary glomerular disease was noted in 26.14% (344 cases). Of the 915 cases of primary glomerular disease, 375 (41.0%) had nephrotic syndrome. Secondary glomerular disease due to purura nephritis was common (209/344; 60.8%). CONCLUSIONS Primiary glomerular disease predominates in children. Nephrotic syndrome is the most common clinical diagnosis. Mesangial proliferation is the most common pathological patterns in children with renal disease.
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Affiliation(s)
- Xi-Qiang Dang
- Department of Pediatrics, Second Xiangya Hospital, Central South University/Clinical Center of Pediatric Renal Disease in Hunan, Changsha, China.
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He XJ, Yi ZW, Mo SH, Dang XQ, Lu XY, Tian Y, Bai HT. [Effect of catechin microcapsule on the repair of DNA damage in glomerular mesangial cells induced by H2O2]. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2007; 32:82-7. [PMID: 17344593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
OBJECTIVE To explore the effect and possible mechanism of catechin microcapsulation on the repair of DNA damage in glumreular mesangial cells (GMCs) induced by H2O2. METHODS According to H2O2 concentration, the experiment GMCs were divided into 6 groups: a control group, 50 micromol/L group, 100 micromol/L group, 150 micromol/L group, 200 micromol/L group and 250 micromol/L group. Each group was sub-divided into 3 groups: 6 h group, 12 h group and 24 h group, in order to determining the optimum dose and the best time of detecting the DNA damage in GMCs. The cultured cells were divided into 8 groups as follows: the NS control group, the H2O2 group, the catechin groups (the final concentrations were 10.0, 15.0, and 20.0 mg/L respectively) and the various catechin microcapsulation groups (the final concentrations were 10.0, 15.0, and 20.0 mg/L respectively). At the end of the experiment, hydroxy radical (OH), malonydialdehyde (MDA) and total superoxide dismutase (tSOD) concentration of supernadant in GMCs were determined by biochemistry assay, the repair of DNA damage in GMCs were detected by single cell gel electrophoresis assay. RESULTS (1)At 6th h, H2O2 of 100 micromoL/L could cause the DNA damage of GMCs, and H2O2 of 150 micromol/L could result in DNA damage significantly. (2) No difference was found in the comet span of GMCs DNA in the catechin group and catechin microcapsulation group of different concentrations, while the DNA comet tail-long in the catechin microcapsulation group was shorter than that of the catechin group(all P(s)<0.05), and the fluorescence intensity of tail in the catechin microcapsulation group was lower than that of the catechin group(all P(s)<0.01). (3)When the concentration of catechin was 10.0 mg/L, no statistical significance was obtained in the concentration of dOH-, MDA and tSOD between the catechin microcapsulation group and the catechin group; while dOH- and MDA concentrations were lower, and the tSOD was higher in the catechin microcapsulation group than that in the catechin group when the concentration of catechin was 15.0 mg/L and 20.0 mg/L(all P(s)<0.05). CONCLUSION Catechin microcapsulation can enhance the GMCs ability of repairing DNA damage,which may be due to elevating the capacity of its anti-oxidation by catechin microcapsulation.
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Affiliation(s)
- Xiao-Jie He
- Laboratory of Pediatric Nephrology, Institute of Pediatrics, Second Xiangya Hospital, Central South University, Hunan Clinic Center of Pediatric Nephrology, Changsha 410011, China.
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Mao HX, Yi ZW, Liang L, He YW, Dang XQ, Wu XC, He XJ, Mo SH. [Analysis of 94 cases of IgA nephropathy in children]. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2007; 32:174-8. [PMID: 17344613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
OBJECTIVE To evaluate the clinical and pathological features of 94 children suffering from IgA nephropathy (IgAN) while estimating the prevalent situation in Hunan province. METHODS To summarize the annual number of hospitalized children, those with kidney diseases, those accepted biopsy, and those confirmed as IgAN in both Xiangya Hospital and Second Xiangya Hospital undertaking kidney biopsy in Hunan province during 1995 and 2004. RESULTS In the past 10 years, as the hospitalized population in both hospitals accrued to 9.98% each year. The rate of 7.5% was seen in those with kidney diseases. Among whom 56.3% accepted kidney biopsy and 94 of them were confirmed as IgAN. Hematuria was the main clinical presentation, seen in 71 cases, accounting to 76%, and even to 98% after excluding those with nephrotic syndrome and isolating proteinuria type of IgAN. Inflammation infiltration (91%), renal tubule degeneration (81%), and renal interstitial fibrosis (31%) were the major pathological features of 94 children, especially in nephrotic syndrome IgAN. CONCLUSION The number of children with IgAN synchronously accrues as hospitalized population, those with kidney diseases, and those by kidney biopsy. Hematuria is the major symptom. To routinely perform urine analysis and kidney biopsy in asymptomatic hematuria may improve the diagnosis. Inflammation infiltration, renal tubule degeneration, and renal interstitial fibrosis are the major pathological features in IgAN children, especially in nephrotic syndrome IgAN, probably relating to continuous proteinuria. Early control of proteinuria may delay or decrease renal tubule fibrosis.
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Affiliation(s)
- Hua-Xiong Mao
- Department of Pediatrics, Second Xiangya Hospital, Central South University, Changsha 410011, China
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49
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Dang XQ, Yi ZW, He XJ, Mo SH, Xu ZC. [Liver lesions in children with hepatitis B virus associated glomerulonephritis]. Zhongguo Dang Dai Er Ke Za Zhi 2006; 8:275-8. [PMID: 16923355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
OBJECTIVE To investigate the pathological changes of liver in children with hepatitis B virus associated glomerulonephritis (HBV-GN). METHODS Thirteen children with HBV-GN (aged from 2-14 years) underwent renal and liver biopsy. The biopsy findings were analyzed. RESULTS Different degrees of hepatic lesions were seen in all of the 13 patients, mild lesions accounting for 69.2% (9/13). HBSAg positive was the most common in the liver tissue [76.9% (10/13)]. Among the renal lesions, membranous glomerulopathy accounted for 69.2%( 9/13), followed by membranoproliferative glomerulonephritis 30.8% (4/13). HBsAg and HBcAg positive were presented in all patients' kidney tissues. HBV antigens were detected in stroma between nephric tubule in all samples. Four patients presented with HBcAg positive in both live and kidneys. CONCLUSIONS The children with HBV-GN couple with liver lesions. The severity of the renal lesions is not always accord with that of the liver lesions. The appearance of HBcAg in both kidneys and liver indicates severe lesions of the two organs. It is suggested that a liver-kidney holistic treatment is necessary for children with HBV-GN.
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Affiliation(s)
- Xi-Qiang Dang
- Laboratory of Pediatric Nephrology, Second Xiangya Hospital, Central South University, Changsha 410011, China.
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Yi Z, Li Z, Wu XC, He QN, Dang XQ, He XJ. Effect of fosinopril in children with steroid-resistant idiopathic nephrotic syndrome. Pediatr Nephrol 2006; 21:967-72. [PMID: 16773409 DOI: 10.1007/s00467-006-0096-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2004] [Revised: 02/14/2006] [Accepted: 02/16/2006] [Indexed: 10/24/2022]
Abstract
We aimed to test if fosinopril reduces urinary protein excretion and alleviates renal tubular damage in normotensive children with steroid-resistant idiopathic nephrotic syndrome (SRINS). We also aimed to evaluate whether there are changes in steady-state blood pressure and serum concentrations of serum angiotensin-converting enzyme (ACE) and plasma renin activity or angiotensin II (AT-II) in children under this treatment. Forty-five normotensive patients with SRINS were randomly divided into two groups. Group I was treated with fosinopril and prednisone for 12 weeks, while group II was treated with prednisone alone for the same duration. The values of 24-h urinary protein excretion were 1.25+/-0.64 vs 2.52+/-0.56 g/24 h (P<0.05), 1.16+/-0.45 vs 2.42+/-0.24 g/24 h (P<0.05), and 1.10+/-0.41 vs 2.05+/-0.46 g/24 h (P<0.05) in group I and group II patients, respectively, at 4, 8, and 12 weeks. Patients in group I showed lower serum concentrations of urinary retinol-binding protein and beta(2)-microglobulin (P<0.01) at the end of the study, but the patients' blood pressure and components of the renin-angiotensin system (RAS) had no change during treatment. The result suggested that fosinopril significantly reduced proteinuria and alleviated renal tubular damage, but did not influence blood pressure and components of systemic RAS in normotensive children with SRINS.
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Affiliation(s)
- Zhuwen Yi
- Laboratory of Pediatric Nephrology, Institute of Pediatrics, The Second Xiangya Hospital, Central South University & Hunan Province Clinical Center of Pediatric Nephrology, Changsha, Hunan, 410011, People's Republic of China.
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