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Li P, Wang Y, Li P, Liu YL, Liu WJ, Chen XY, Tang TT, Qi KM, Zhang Y. Maternal inappropriate calcium intake aggravates dietary-induced obesity in male offspring by affecting the differentiation potential of mesenchymal stem cells. World J Stem Cells 2022; 14:756-776. [PMID: 36337156 PMCID: PMC9630989 DOI: 10.4252/wjsc.v14.i10.756] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/24/2022] [Accepted: 08/07/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The effects of inappropriate dietary calcium intake in early life on later obesity have not been fully elucidated.
AIM To raise the mechanism of maternal calcium intake on the multi-differentiation potential of mesenchymal stem cells among their male offspring.
METHODS Four-week-old female C57BL/6N mice were fed by deficient, low, normal and excessive calcium reproductive diets throughout pregnancy and lactation. Bone MSCs (BMSCs) were obtained from 7-day-old male offspring to measure the adipogenic differentiation potential by the Wnt/β-catenin signaling pathway. The other weaning male pups were fed a high-fat diet for 16 wk, along with normal-fat diet as the control. Then the serum was collected for the measurement of biochemical indicators. Meanwhile, the adipose tissues were excised to analyze the adipocyte sizes and inflammatory infiltration. And the target gene expressions on the adipogenic differentiation and Wnt/β-catenin signaling pathway in the adipose tissues and BMSCs were determined by real-time reverse transcription polymerase chain reaction.
RESULTS Compared with the control group, maternal deficient, low and excessive calcium intake during pregnancy and lactation aggravated dietary-induced obesity, with larger adipocytes, more serious inflammatory infiltration and higher serum metabolism indicators by interfering with higher expressions of adipogenic differentiation (PPARγ, C/EBPα, Fabp4, LPL, Adiponectin, Resistin and/or Leptin) among their male offspring (P < 0.05). And there were significantly different expression of similar specific genes in the BMSCs to successfully polarize adipogenic differentiation and suppress osteogenic differentiation in vivo and in vitro, respectively (P < 0.05). Meanwhile, it was accompanied by more significant disorders on the expressions of Wnt/β-catenin signaling pathway both in BMSCs and adulthood adipose tissues among the offspring from maternal inappropriate dietary calcium intake groups.
CONCLUSION Early-life abnormal dietary calcium intake might program the adipogenic differentiation potential of BMSCs from male offspring, with significant expressions on the Wnt/β-catenin signaling pathway to aggravate high-fat-diet-induced obesity in adulthood.
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Affiliation(s)
- Ping Li
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children's Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yang Wang
- Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing 100085, China
| | - Pei Li
- Department of Pediatrics, General Hospital of Tianjin Medical University, Tianjin Medical University, Tianjin 300070, China
| | - Yuan-Lin Liu
- Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing 100085, China
| | - Wei-Jiang Liu
- Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing 100085, China
| | - Xiao-Yu Chen
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children's Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Tian-Tian Tang
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children's Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Ke-Min Qi
- Laboratory of Nutrition and Development, Key Laboratory of Major Diseases in Children's Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Yi Zhang
- Department of Experimental Hematology and Biochemistry, Beijing Institute of Radiation Medicine, Beijing 100085, China
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Zhang WW, Tian SY, Tang TT, Li YX. [Chicken-claw needling at Xiaguan (ST 7) combined with intradermal needling on negative emotions in primary trigeminal neuralgia of phlegm obstruction and blood stasis: a randomized controlled trial]. Zhongguo Zhen Jiu 2022; 42:999-1003. [PMID: 36075595 DOI: 10.13703/j.0255-2930.20220314-0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To observe the clinical effect of chicken-claw needling at Xiaguan (ST 7) combined with intradermal needling on negative emotion in primary trigeminal neuralgia (PTN) of phlegm obstruction and blood stasis. METHODS Sixty cases of patients with PTN of phlegm obstruction and blood stasis were randomly divided into an observation group and a control group, 30 cases in each group. The observation group was treated with chicken-claw needling at Xiaguan (ST 7) combined with intradermal needling (acupoints Sibai [ST 2], Yuyao [EX-HN 4], Hegu [LI 4], Taichong [LR 3] and auricular points Xin [CO15], Shenmen [TF4], Pizhixia [AT4], etc.), once a day, 6 d as a course of treatment, rest 1 d between courses, a total of 2 courses of treatment; and the control group was given oral carbamazepine tablets for 13 days. Before and after treatment, the pain visual analogue scale (VAS), TCM syndromes, self-rating anxiety scale (SAS) scores and the contents of serum neurotransmitter (β-endorphin [β-EP], substance P [SP] and 5-hydroxytryptamine [5-HT]) were compared, and the clinical efficacy was evaluated. RESULTS After treatment, the VAS, SAS, TCM syndrome scores and the contents of serum SP in the two groups were lower than those before treatment (P<0.05), and the above indexes in the observation group was lower than those in the control group (P<0.05). The contents of serum β-EP and 5-HT in the two groups were higher than those before treatment (P<0.05), and the above indexes in the observation group were higher than those in the control group (P<0.05). The total effective rate in the observation group was 93.3% (28/30), which was higher than 83.3% (25/30) in the control group (P<0.05). CONCLUSION Chicken-claw needling at Xiaguan (ST 7) combined with intradermal needling can relieve pain symptoms and negative emotions in patients with primary trigeminal neuralgia of phlegm obstruction and blood stasis, which may be related to the regulation of serum neurotransmitter levels.
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Affiliation(s)
- Wei-Wei Zhang
- Graduate School of Heilongjiang University of CM, Harbin 150040, China
| | - Shu-Yi Tian
- Graduate School of Heilongjiang University of CM, Harbin 150040, China
| | - Tian-Tian Tang
- Graduate School of Heilongjiang University of CM, Harbin 150040, China
| | - Ya-Xue Li
- Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of CM, Harbin 150040
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Ma L, Ge ZC, Xin L, Wang YX, Zhang YS, Tang TT, Gao GX, Liu Q, Zhao X, Liu YJ, Qu X. Clinical practice guidelines for breast cancer implantable intravenous infusion ports: Chinese Society of Breast Surgery practice guidelines 2021. Chin Med J (Engl) 2021; 134:1894-1896. [PMID: 34133358 PMCID: PMC8382480 DOI: 10.1097/cm9.0000000000001522] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- Li Ma
- Department of Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, China
| | - Zhi-Cheng Ge
- Department of General Surgery I, Beijing Friendship Hospital of Capital Medical University, Beijing 100050, China
| | - Ling Xin
- Department of Center for Breast Diseases, Peking University First Hospital, Beijing 100034, China
| | - Ying-Xin Wang
- Department of Center for Breast Diseases, Peking University First Hospital, Beijing 100034, China
| | - Yan-Shou Zhang
- Department of Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, China
| | - Tian-Tian Tang
- Department of Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, China
| | - Guo-Xuan Gao
- Department of General Surgery I, Beijing Friendship Hospital of Capital Medical University, Beijing 100050, China
| | - Qian Liu
- Department of Center for Breast Diseases, Peking University First Hospital, Beijing 100034, China
| | - Xuan Zhao
- Department of Center for Breast Diseases, Peking University First Hospital, Beijing 100034, China
| | - Yun-Jiang Liu
- Department of Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050035, China
| | - Xiang Qu
- Department of General Surgery I, Beijing Friendship Hospital of Capital Medical University, Beijing 100050, China
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Wu JY, Cai JX, Li YJ, Hu XB, Liu XY, Wang JM, Tang TT, Xiang DX. 3,5,4'-Trimethoxy-trans-stilbene loaded microemulsion for cutaneous melanoma therapy by transdermal drug delivery. Drug Deliv Transl Res 2020; 11:169-181. [PMID: 32297167 DOI: 10.1007/s13346-020-00757-w] [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] [Indexed: 11/26/2022]
Abstract
For therapy of skin cancer, transdermal administration has been a potential way to enhance chemotherapy. However, the drug delivery efficacy remained unsatisfactory because of the physiological barriers from the skin to the tumor, which hindered the effect of 3,5,4'-trimethoxy-trans-stilbene (BTM), a drug that has toxicity to cancer. Herein, we prepared an oil-in-water (O/W) microemulsion to load BTM (BTM-ME) for transdermal therapy of melanoma. BTM-ME was characterized by size, zeta potential, and polymer disperse index (PDI). B16F10 melanoma cell line was used for cell experiments and animal models. And cell uptake, viability assay, and flow cytometry were to test the cell internalization and the ability of BTM-ME to induce cancer cell apoptosis. Skin penetration testing was to detect its penetration efficiency to the skin. And tumor-bearing mice were used to prove the improvement of anti-cancer efficacy of BTM-ME with the combination of Taxol. BTM was successfully loaded in O/W microemulsion, with a drug loading capacity of 24.82 mg/mL. BTM-ME can penetrate the skin and increase the retention of BTM in the epidermis. And the combination of Taxol and BTM-ME effectively suppressed tumor growth and has lower toxicity to normal organs. BTM-ME provides adjuvant therapy to cutaneous melanoma and the combination of Taxol and BTM-ME has the clinical potential for skin cancer therapy. Graphical abstract.
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Affiliation(s)
- Jun-Yong Wu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Institute of Clinical Pharmacy, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Jia-Xin Cai
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Institute of Clinical Pharmacy, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Yong-Jiang Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Institute of Clinical Pharmacy, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Xiong-Bin Hu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Institute of Clinical Pharmacy, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Xin-Yi Liu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Institute of Clinical Pharmacy, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Jie-Min Wang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Institute of Clinical Pharmacy, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Tian-Tian Tang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Institute of Clinical Pharmacy, Central South University, Changsha, 410011, Hunan, People's Republic of China
- Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Da-Xiong Xiang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China.
- Institute of Clinical Pharmacy, Central South University, Changsha, 410011, Hunan, People's Republic of China.
- Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China.
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Tang TT, Liu L, Li CX, Li YT, Zhou T, Li HP, Wang J. Which is Better for Patients with Breast Cancer: Totally Implanted Vascular Access Devices (TIVAD) or Peripherally Inserted Central Catheter (PICC)? World J Surg 2019; 43:2245-2249. [PMID: 31098669 DOI: 10.1007/s00268-019-05022-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Our aim was to compare the applications of totally implanted vascular access devices (TIVAD) and peripherally inserted central catheter (PICC) in breast cancer patients. METHODS We analyzed 4080 cases of TIVAD and 1433 cases of PICC at the Breast Center of the Fourth Hospital of Hebei Medical University. The success rate, operation time, and procedures of catheterization, as well as the catheterization-related complications, catheter indwelling-related complications, and the utilization conditions were compared between these two methods. RESULTS Our results showed that the success rate of catheterization was relatively higher in PICC group (99.5%) than the TIVAD group (99.0%)(χ2 = 3.521, P = 0.038), and the operation time and the rate of catheterization-related complications were lower in PICC (18.65 ± 4.7603 min, 0.91%) compared to TIVAD (29.55 ± 4.0843 min, 1.59%)(t = 38.000, P < 0.01, χ2 = 3.578, P = 0.035). However, the rate of catheter indwelling-related complications was lower in TIVAD group (2.47%) than the PICC group (3.62%)(χ2 = 5.227, P = 0.016), and the catheter care was also better in TIVAD. CONCLUSIONS Based on these analyses, we recommended TIVAD for the patients who need long-term and high-dose chemotherapy and PICC for the patients who need short chemotherapy cycle and live close to the hospital.
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Affiliation(s)
- Tian-Tian Tang
- Breast Center of the Fourth Hospital of Hebei Medical University, No. 169, Tianshan Street, Shijiazhuang, Hebei Province, China
| | - Lei Liu
- Breast Center of the Fourth Hospital of Hebei Medical University, No. 169, Tianshan Street, Shijiazhuang, Hebei Province, China
| | - Chun-Xiao Li
- Breast Center of the Fourth Hospital of Hebei Medical University, No. 169, Tianshan Street, Shijiazhuang, Hebei Province, China
| | - Yun-Tao Li
- Breast Center of the Fourth Hospital of Hebei Medical University, No. 169, Tianshan Street, Shijiazhuang, Hebei Province, China
| | - Tao Zhou
- Breast Center of the Fourth Hospital of Hebei Medical University, No. 169, Tianshan Street, Shijiazhuang, Hebei Province, China
| | - Hai-Ping Li
- Breast Center of the Fourth Hospital of Hebei Medical University, No. 169, Tianshan Street, Shijiazhuang, Hebei Province, China
| | - Jianxin Wang
- Breast Center of the Fourth Hospital of Hebei Medical University, No. 169, Tianshan Street, Shijiazhuang, Hebei Province, China.
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Li WQ, Wu JY, Xiang DX, Luo SL, Hu XB, Tang TT, Sun TL, Liu XY. Micelles Loaded With Puerarin And Modified With Triphenylphosphonium Cation Possess Mitochondrial Targeting And Demonstrate Enhanced Protective Effect Against Isoprenaline-Induced H9c2 Cells Apoptosis. Int J Nanomedicine 2019; 14:8345-8360. [PMID: 31695371 PMCID: PMC6814317 DOI: 10.2147/ijn.s219670] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 06/16/2019] [Accepted: 09/16/2019] [Indexed: 12/16/2022] Open
Abstract
Background The protective role of puerarin (PUE) against myocardial infarction is closely related to its regulation on mitochondria. However, free PUE can hardly reach the mitochondria of ischemic cardiomyocytes due to the lack of mitochondrial targeting of PUE. Here PUE was loaded into mitochondria-targeted micelles (PUE@TPP/PEG-PE) for precisely delivering PUE into mitochondria with the aim of enhancing the anti-apoptosis effect. Methods The mitochondriotropic polymer TPP-PEG-PE was synthesized for the preparation of PUE@TPP/PEG-PE micelles modified with triphenylphosphonium (TPP) cation. The physicochemical properties and anti-apoptosis effect of PUE@TPP/PEG-PE micelles were investigated. The coumarin 6 (C6)-labeled TPP/PEG-PE (C6@TPP/PEG-PE) micelles were used to observe the enhanced cellular uptake, mitochondrial targeting and lysosomes escape. Moreover, in vivo and ex vivo biodistribution of lipophilic near-infrared dye 1,1ʹ-dioctadecyl-3,3,3′,3ʹ-tetramethylindotricarbocyanine iodide (DiR)-labeled PUE@TPP/PEG-PE (DiR@TPP/PEG-PE) micelles were detected through fluorescence imaging. Results The successful synthesis of TPP-PEG-PE conjugate was confirmed. PUE@TPP/PEG-PE micelles had a particle size of 17.1 nm, a zeta potential of −6.2 mV, and a sustained-release behavior. The in vitro results showed that the intracellular uptake of C6@TPP/PEG-PE micelles was significantly enhanced in H9c2 cells. C6@TPP/PEG-PE micelles could deliver C6 to mitochondria and reduce the capture of lysosomes. In addition, compared with the PUE@PEG-PE micelles and free PUE, the PUE@TPP/PEG-PE micelles exerted an enhanced protective effect against isoprenaline-induced H9c2 cell apoptosis, as evident by the decreased percentage of apoptotic cells, Caspase-3 activity, ROS level, Bax expression, and increased Bcl-2 expression. The in vivo detecting results of the targeting effect using DiR probe also indicated that TPP/PEG-PE micelles could accumulate and retain in the ischemic myocardium. Conclusion The results of this study demonstrate the promising potential of applying PUE@TPP/PEG-PE micelles in mitochondria-targeted drug delivery to achieve maximum therapeutic effects of PUE.
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Affiliation(s)
- Wen-Qun Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Jun-Yong Wu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Da-Xiong Xiang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Shi-Lin Luo
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Xiong-Bin Hu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Tian-Tian Tang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
| | - Tao-Li Sun
- Key Laboratory Breeding Base of Hu'nan Oriented Fundamental and Applied Research of Innovative Pharmaceutics, College of Pharmacy, Changsha Medical University, Changsha 410219, People's Republic of China
| | - Xin-Yi Liu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China.,Institution of Clinical Pharmacy, Central South University, Changsha 410011, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha 410011, People's Republic of China
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Wu JY, Li YJ, Liu XY, Cai JX, Hu XB, Wang JM, Tang TT, Xiang DX. 3,5,4'-trimethoxy-trans-stilbene loaded PEG-PE micelles for the treatment of colon cancer. Int J Nanomedicine 2019; 14:7489-7502. [PMID: 31571860 PMCID: PMC6749994 DOI: 10.2147/ijn.s221625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 07/02/2019] [Accepted: 08/30/2019] [Indexed: 11/29/2022] Open
Abstract
Background 3,5,4′-trimethoxy-trans-stilbene (BTM) is a methylated derivative of resveratrol. To improve the pharmaceutical properties of BTM, BTM loaded PEG-PE micelles (BTM@PEG-PE) were fabricated and its anti-cancer efficacy against colon cancer was evaluated. Methods BTM@PEG-PE micelles were prepared by the solvent evaporation method and were characterized by nuclear magnetic resonance (NMR), size, zeta potential, polymer disperse index (PDI) and transmission electron microscopy (TEM). Cellular uptake, cell viability assay, caspase-3 activity assay and flow cytometry were performed to evaluate the cell internalization and anti-cancer efficacy of BTM@PEG-PE micelles in vitro. Pharmacokinetic profiles of BTM and BTM@PEG-PE micelles were compared and in vivo anti-cancer therapeutic efficacy and safety of BTM@PEG-PE micelles on CT26 xenograft mice were evaluated. Results BTM was successfully embedded in the core of PEG-PE micelles, with a drug loading capacity of 5.62±0.80%. PEG-PE micelles facilitated BTM entering to the CT26 cells and BTM@PEG-PE micelles exerted enhanced anti-cancer efficacy against CT26 cells. BTM@PEG-PE micelles showed prolonged half-life and increased bioavailability. More importantly, BTM@PEG-PE micelles treatment suppressed tumor growth in tumor-bearing mice and prolonged survival with minimal damage to normal tissues. Conclusion Altogether, the BTM@PEG-PE micelles might be a promising strategy to enhance the pharmacokinetic and pharmacodynamic potentials of BTM for colon cancer therapy.
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Affiliation(s)
- Jun-Yong Wu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Yong-Jiang Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Xin-Yi Liu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Jia-Xin Cai
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Xiong-Bin Hu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Jie-Min Wang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Tian-Tian Tang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
| | - Da-Xiong Xiang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan, People's Republic of China
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8
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Wu JY, Li YJ, Yang L, Hu YY, Hu XB, Tang TT, Wang JM, Liu XY, Xiang DX. Borneol and Α-asarone as adjuvant agents for improving blood-brain barrier permeability of puerarin and tetramethylpyrazine by activating adenosine receptors. Drug Deliv 2019; 25:1858-1864. [PMID: 30338713 PMCID: PMC6201807 DOI: 10.1080/10717544.2018.1516005] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [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] [Indexed: 11/13/2022] Open
Abstract
Puerarin (PUE) and tetramethylpyrazine (TMP) are central nervous system (CNS) drugs used in cerebrovascular diseases. Poor brain–blood barrier (BBB) permeability limited their clinical application. Borneol and α-asarone have been proposed as an oral brain-targeting enhancer. In this study, we aimed to first evaluate the ‘orifice-opening’ effect of borneol and α-asarone, both aromatic resuscitation drugs, on improvement of brain delivery of PUE and TMP and second to investigate whether the enhancing effects were associated with adenosine receptors (ARs)-mediated trans-BBB pathway. In vitro BBB model was established and borneol and α-asarone significantly increased the cumulative amount of permeated PUE and TMP and the enhancing effects could be counteracted by AR inhibitors. Borneol and α-asarone could decrease expression of ZO-1, an important BBB junction protein, but inversely increase the expression of A1AR and A2AAR. In vivo pharmacokinetic study also confirmed that oral co-administration of borneol or α-asarone significantly increased AUCbrain for PUE and TMP. These results suggested that borneol and α-asarone are both effective adjuvant agents for delivery of PUE and TMP to the brain.
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Affiliation(s)
- Jun-Yong Wu
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Institute of Clinical Pharmacy, Central South University , Changsha , Hunan , China.,c Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug , Changsha , Hunan Province , China
| | - Yong-Jiang Li
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Institute of Clinical Pharmacy, Central South University , Changsha , Hunan , China.,c Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug , Changsha , Hunan Province , China
| | - Le Yang
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Institute of Clinical Pharmacy, Central South University , Changsha , Hunan , China.,c Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug , Changsha , Hunan Province , China
| | - Yi-Yun Hu
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Institute of Clinical Pharmacy, Central South University , Changsha , Hunan , China.,c Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug , Changsha , Hunan Province , China
| | - Xiong-Bin Hu
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Institute of Clinical Pharmacy, Central South University , Changsha , Hunan , China.,c Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug , Changsha , Hunan Province , China
| | - Tian-Tian Tang
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Institute of Clinical Pharmacy, Central South University , Changsha , Hunan , China.,c Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug , Changsha , Hunan Province , China
| | - Jie-Min Wang
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Institute of Clinical Pharmacy, Central South University , Changsha , Hunan , China.,c Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug , Changsha , Hunan Province , China
| | - Xin-Yi Liu
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Institute of Clinical Pharmacy, Central South University , Changsha , Hunan , China.,c Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug , Changsha , Hunan Province , China
| | - Da-Xiong Xiang
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Institute of Clinical Pharmacy, Central South University , Changsha , Hunan , China.,c Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug , Changsha , Hunan Province , China
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Hu XB, Tang TT, Li YJ, Wu JY, Wang JM, Liu XY, Xiang DX. Phospholipid complex based nanoemulsion system for oral insulin delivery: preparation, in vitro, and in vivo evaluations. Int J Nanomedicine 2019; 14:3055-3067. [PMID: 31118622 PMCID: PMC6505468 DOI: 10.2147/ijn.s198108] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 12/13/2018] [Accepted: 03/11/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose: The aim of this research was to develop a phospholipid complex based nanoemulsion system for oral insulin delivery. Methods: Insulin-phospholipid complex (IPC) was firstly prepared by an anhydrous co-solvent lyophilization method, and then encapsulated into the oil phase of nanoemulsion to obtain the IPC-based nanoemulsion (IPC-NE). Both water-in-oil (W/O) IPC-NE and oil-in-water (O/W) IPC-NE were formulated and evaluated for comparison. Results: The obtained W/O IPC-NE and O/W IPC-NE were both spherical in shape with a mean particle size of 18.6±0.79 nm and 27.3±1.25 nm, respectively. While both IPC-NEs exhibited enhanced Caco-2 cell monolayers permeability than IPC and insulin solution, W/O IPC-NE showed relatively greater protective effects against enzymatic degradation than O/W IPC-NE. Moreover, oral administration of W/O IPC-NE exhibited significant hypoglycemic effects, with 12.4-fold and 1.5-fold higher oral bioavailability compared with insulin solution and O/W IPC-NE, respectively. Conclusion: IPC-NEs, especially the W/O IPC-NE showed promising efficiency in vitro and in vivo, thus could be a potential strategy for oral insulin delivery.
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Affiliation(s)
- Xiong-Bin Hu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan Province, 410011, People's Republic of China
| | - Tian-Tian Tang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan Province, 410011, People's Republic of China
| | - Yong-Jiang Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan Province, 410011, People's Republic of China
| | - Jun-Yong Wu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan Province, 410011, People's Republic of China
| | - Jie-Min Wang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan Province, 410011, People's Republic of China
| | - Xin-Yi Liu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan Province, 410011, People's Republic of China
| | - Da-Xiong Xiang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, People's Republic of China.,Institute of Clinical Pharmacy, Central South University, Changsha 410011, Hunan, People's Republic of China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, Hunan Province, 410011, People's Republic of China
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Wu JY, Li YJ, Liu TT, Ou G, Hu XB, Tang TT, Wang JM, Liu XY, Xiang DX. Microemulsions vs chitosan derivative-coated microemulsions for dermal delivery of 8-methoxypsoralen. Int J Nanomedicine 2019; 14:2327-2340. [PMID: 31015760 PMCID: PMC6448538 DOI: 10.2147/ijn.s191940] [Citation(s) in RCA: 11] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Background 8-methoxypsoralen (8-MOP) is one of the most commonly utilized drugs in psoralen-ultraviolet A therapy for treatment of vitiligo. However, poor skin retention and systemic side effects limit the clinical application of 8-MOP. Methods Microemulsions (MEs) and chitosan derivative-coated 8-MOP MEs were developed and compared for dermal delivery of 8-MOP. Ex vivo skin retention/permeation study was performed to select the ME formulation with the highest retention:permeation ratio. Four different chitosan-coated MEs were prepared and compared with the ME formulation for their ability to distribute 8-MOP in the skin. Results Among various ME formulations developed, a formulation containing 2.9% ethyl oleate, 17.2% Cromophor EL35, 8.6% ethanol and 71.3% water showed the highest ex vivo skin retention:permeation ratio (1.98). Of four chitosan-coated MEs prepared, carboxymethyl chitosan-coated MEs (CC-MEs) and hydroxypropyl chitosan-coated MEs (HC-MEs) showed higher ex vivo skin retention:permeation ratio (1.46 and 1.84). and were selected for in vivo pharmacokinetic study. AUCskin (0–12 h) for 8-MOP MEs (4578.56 h·ng·mL−1) was higher than HC-MEs (3422.47 h·ng·mL−1), CC-MEs (2808.51 h·ng·mL−1) and tincture (1500.16 h·ng·mL−1). Also, AUCplasma (0–12 h) for MEs (39.35±13.90 h·ng·mL−1) was significantly lower than HC-MEs (66.32 h·ng·mL−1), CC-MEs (59.70 h·ng·mL−1) and tincture (73.02 h·ng·mL−1). Conclusion These combined results suggested that the MEs developed could be a promising and safe alternative for targeted skin delivery of 8-MOP.
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Affiliation(s)
- Jun-Yong Wu
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha, Hunan, People's Republic of China,
| | - Yong-Jiang Li
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha, Hunan, People's Republic of China,
| | - Ting-Ting Liu
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha, Hunan, People's Republic of China,
| | - Ge Ou
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha, Hunan, People's Republic of China,
| | - Xiong-Bin Hu
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha, Hunan, People's Republic of China,
| | - Tian-Tian Tang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha, Hunan, People's Republic of China,
| | - Jie-Min Wang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha, Hunan, People's Republic of China,
| | - Xin-Yi Liu
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha, Hunan, People's Republic of China,
| | - Da-Xiong Xiang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, People's Republic of China, .,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drugs, Changsha, Hunan, People's Republic of China,
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Li YJ, Hu XB, Lu XL, Liao DH, Tang TT, Wu JY, Xiang DX. Nanoemulsion-based delivery system for enhanced oral bioavailability and caco-2 cell monolayers permeability of berberine hydrochloride. Drug Deliv 2018; 24:1868-1873. [PMID: 29191058 PMCID: PMC8240975 DOI: 10.1080/10717544.2017.1410257] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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] [Indexed: 02/08/2023] Open
Abstract
Berberine hydrochloride (BBH) has a variety of pharmacological activities such as antitumor, antimicrobial, anti-inflammation, and reduce irritable bowel syndrome. However, poor stability and low oral bioavailability limited its usage. Herein, an oil-in-water nanoemulsion system of BBH was developed to improve its stability and oral bioavailability. The pseudoternary phase diagrams were constructed for the determination of composition of various nanoemulsions. The nanoemulsions of BBH composed of Labrafil M 1944 CS (oil phase), RH-40 (surfactant), glycerin (co-surfactant), and water (aqueous phase). The O/W nanoemulsion of BBH showed a relative bioavailability of 440.40% compared with unencapsulated BBH and was stable in our 6-month stability study. Further, there was a significant increase in intestinal permeability of BBH as assessed by Caco-2 cell monolayers and a significant reduction in efflux of BBH by the multidrug efflux pump P-glycoprotein. This study confirmed that the nanoemulsion formulation could be used as an alternative oral formulation of BBH to improve its stability, oral bioavailability and permeability.
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Affiliation(s)
- Yong-Jiang Li
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Key Laboratory of Traditional Chinese Medicine Preparations of Hunan Province , the Second Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Xiong-Bin Hu
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Key Laboratory of Traditional Chinese Medicine Preparations of Hunan Province , the Second Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Xiu-Ling Lu
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Key Laboratory of Traditional Chinese Medicine Preparations of Hunan Province , the Second Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - De-Hua Liao
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Key Laboratory of Traditional Chinese Medicine Preparations of Hunan Province , the Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,c Hunan Cancer Hospital , Changsha , Hunan , China
| | - Tian-Tian Tang
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,d Institute of Mental Health , the Second Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Jun-Yong Wu
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Key Laboratory of Traditional Chinese Medicine Preparations of Hunan Province , the Second Xiangya Hospital, Central South University , Changsha , Hunan , China
| | - Da-Xiong Xiang
- a Department of Pharmacy , The Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,b Key Laboratory of Traditional Chinese Medicine Preparations of Hunan Province , the Second Xiangya Hospital, Central South University , Changsha , Hunan , China.,d Institute of Mental Health , the Second Xiangya Hospital, Central South University , Changsha , Hunan , China
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Liu BC, Tang TT, Lü LL. [Opportunities and challenges in the study of renal fibrosis in the era of precision medicine]. Zhonghua Yi Xue Za Zhi 2016; 96:3041-3043. [PMID: 27784442 DOI: 10.3760/cma.j.issn.0376-2491.2016.38.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Zhai ZJ, Li HW, Liu GW, Qu XH, Tian B, Yan W, Lin Z, Tang TT, Qin A, Dai KR. Andrographolide suppresses RANKL-induced osteoclastogenesis in vitro and prevents inflammatory bone loss in vivo. Br J Pharmacol 2014; 171:663-75. [PMID: 24125472 DOI: 10.1111/bph.12463] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 09/25/2013] [Accepted: 09/27/2013] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND PURPOSE Osteoclasts play a pivotal role in diseases such as osteoporosis, rheumatoid arthritis and tumour bone metastasis. Thus, searching for natural compounds that may suppress osteoclast formation and/or function is promising for the treatment of osteoclast-related diseases. Here, we examined changes in osteoclastogenesis and LPS-induced osteolysis in response to andrographolide (AP), a diterpenoid lactone isolated from the traditional Chinese and Indian medicinal plant Andrographis paniculata. EXPERIMENTAL APPROACH Effects of AP on osteoclast differentiation and bone resorption were measured in vitro. Western blots and RT-PCR techniques were used to examine the underlying molecular mechanisms. The bone protective activity of AP in vivo was assessed in a mouse model of osteolysis. KEY RESULTS AP concentration-dependently suppressed RANKL-mediated osteoclast differentiation and bone resorption in vitro and reduced the expression of osteoclast-specific markers, including tartrate-resistant acid phosphatase, calcitonin receptors and cathepsin K. Further molecular analysis revealed that AP impaired RANKL-induced NF-κB signalling by inhibiting the phosphorylation of TGF-β-activated kinase 1, suppressing the phosphorylation and degradation of IκBα, and subsequently preventing the nuclear translocation of the NF-κB p65 subunit. AP also inhibited the ERK/MAPK signalling pathway without affecting p38 or JNK signalling. CONCLUSIONS AND IMPLICATIONS AP suppressed RANKL-induced osteoclastogenesis through attenuating NF-κB and ERK/MAPK signalling pathways in vitro, thus preventing bone loss in vivo. These data indicated that AP is a promising natural compound for the treatment of osteoclast-related bone diseases.
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Affiliation(s)
- Z J Zhai
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Xia CF, Ye ZG, Zhou XN, Tang TT, Wen LJ, Liu XY. [Tissue distribution of PEGylated puerarin in acute myocardial ischemia mode rats]. Yao Xue Xue Bao 2014; 49:1413-1417. [PMID: 25577871] [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: 06/04/2023]
Abstract
The aim of this study is to explore the tissue distribution of PEGylated puerarin in acute myocardial ischemia model rats. Healthy male SD rats were randomly divided into two groups (30 each). Both were given PEGylated puerarin at a dose of 488 mg x kg(-1). After 5 min of medication, one group was normal rats, another group with acute myocardial ischemia was established by peritoneal injection of 50 mg x kg(-1) isoprenaline. After administration, the animals were executed at 30, 60, 90, 120, 150 and 180 min, then heart, liver, spleen, lung, kidney were extracted. The content of puerarin in organ tissue was determined by HPLC. The results showed that the AUC of tissue distribution of PEGylated puerarin in normal rats was liver > kidney > heart ≈ spleen > lung > brain. While the AUC of tissue distribution of PEGylated puerarin in acute myocardial ischemia model rats was liver ≈ heart > kidney > lung ≈ spleen > brain. AUC(heart) of PEGylated puerarin in acute myocardial ischemia model rats was 1.7 times than that of the normal rats, and there was significant difference (P < 0.05). Thus, PEGylated puerarin had a good heart-targeting property in early myocardial infarction area, drugs could accumulate in the ischemic myocardium. It provided important information for further study and clinic use of PEGylated puerarin.
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Affiliation(s)
- Chun-Fang Xia
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, China
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Tang TT, Hu XB, Liao DH, Liu XY, Xiang DX. Mechanisms of microemulsion enhancing the oral bioavailability of puerarin: comparison between oil-in-water and water-in-oil microemulsions using the single-pass intestinal perfusion method and a chylomicron flow blocking approach. Int J Nanomedicine 2013; 8:4415-26. [PMID: 24277986 PMCID: PMC3838017 DOI: 10.2147/ijn.s51469] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [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] [Indexed: 11/23/2022] Open
Abstract
The purpose of the present work was to determine the mechanisms by which microemulsions (MEs) enhance the oral bioavailability of puerarin. The in situ perfusion method was used in rats to study the absorption mechanisms of an oil-in-water (O/W) microemulsion (O/W-ME) and a water-in-oil (W/O) microemulsion (W/O-ME). The possibility of lymphatic transport of the MEs was investigated using a chylomicron flow blocking approach. The results for the absorption mechanisms in the stomach and intestines indicated that the absorption characteristics of the O/W-ME and W/O-ME depend on the segment. The W/O-ME had higher internal membrane permeability than the O/W-ME. The results of the lymphatic transport analyses showed that both the O/W-ME and W/O-ME underwent lymphatic transport and that this pathway was a major contributor to the oral bioavailability of MEs. Furthermore, the type of ME can significantly affect the absorption of puerarin through the lymphatic system due to the oil content and the form of the microemulsion after oral administration. In conclusion, these data indicate that microemulsions are an effective and promising delivery system to enhance the oral bioavailability of poorly water-soluble drugs.
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Affiliation(s)
- Tian-Tian Tang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, People's Republic of China ; Institute of Clinical Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, People's Republic of China ; Key Laboratory for New Technology of Chinese Medicine Preparations of Hunan Province, Changsha, People's Republic of China
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Qin Y, Pan X, Tang TT, Zhou L, Gong XG. Anti-proliferative effects of the novel squamosamide derivative (FLZ) on HepG2 human hepatoma cells by regulating the cell cycle-related proteins are associated with decreased Ca(2+)/ROS levels. Chem Biol Interact 2011; 193:246-53. [PMID: 21835169 DOI: 10.1016/j.cbi.2011.07.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Accepted: 07/25/2011] [Indexed: 10/17/2022]
Abstract
FLZ is a synthetic novel squamosamide derivative and has previously been proved to be a potential drug for Parkinson's disease and Alzheimer's disease. FLZ has strong antioxidant activity, which implies that FLZ could eliminate excessive intracellular reactive oxygen species (ROS) in tumor cells and induce a pathway related to low cellular ROS levels, thereby inhibiting tumor cells proliferation. However, few reports have focused on the antitumor effects of FLZ. In this study, we investigated the antitumor efficacy of FLZ in HepG2 cells and the mechanism of cell growth inhibition. FLZ effectively inhibited HepG2 cell proliferation in a dose- and time-dependent manner; meanwhile, it was minimally toxic to normal cells. FLZ induced a significant decrease in oxidative stress through elimination of excessive intracellular ROS and strengthening of the glutathione antioxidant system. In addition, FLZ can effectively attenuate redundant [Ca(2+)](i), thereby avoiding uncontrolled amplification by Ca(2+)/ROS positive feedback. Furthermore, Western blot showed that FLZ inhibited phosphorylation of Akt and retinoblastoma protein (Rb), down-regulated the expressions of cyclin D1, cyclin E, cyclin-dependent kinase 2 (CDK2), and enhanced the expression of CDK inhibitor p27(kip1), while did not affect CDK4 expression. These results suggest that FLZ has potent anti-proliferative activity against malignant human hepatoma cells via modulation of the expression or activation of cell-cycle regulatory proteins, which are associated with decreased Ca(2+)/ROS levels, and indicate that FLZ is a potential liver cancer drug worthy of further research and development.
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Affiliation(s)
- Yong Qin
- Institute of Biochemistry, College of Life Sciences, Zhejiang University, PR China
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Ding HF, Liu R, Li BG, Lou JR, Dai KR, Tang TT. Biologic effect and immunoisolating behavior of BMP-2 gene-transfected bone marrow-derived mesenchymal stem cells in APA microcapsules. Biochem Biophys Res Commun 2007; 362:923-7. [PMID: 17767917 DOI: 10.1016/j.bbrc.2007.08.094] [Citation(s) in RCA: 33] [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] [Subscribe] [Scholar Register] [Received: 08/10/2007] [Accepted: 08/15/2007] [Indexed: 01/14/2023]
Abstract
We investigated the encapsulation of BMP-2 gene-modified mesenchymal stem cells (MSCs) in alginate-poly-L-lysine (APA) microcapsules for the persistent delivery of bone morphogenic protein-2 (BMP-2) to induce bone formation. An electrostatic droplet generator was employed to produce APA microcapsules containing encapsulated beta-gal or BMP-2 gene-transfected bone marrow-derived MSCs. We found that X-gal staining was still positive 28 days after encapsulation. Encapsulated BMP-2 gene-transfected cells were capable of constitutive delivery of BMP-2 proteins for at least 30 days. The encapsulated BMP-2 gene-transfected MSCs or the encapsulated non-gene transfer MSCs (control group) were cocultured with the undifferentiated MSCs. The gene products from the encapsulated BMP-2 cells could induce the undifferentiated MSCs to become osteoblasts that had higher alkaline phosphatase (ALP) activity than those in the control group (p<0.05). The APA microcapsules could inhibit the permeation of fluorescein isothiocyanate-conjuncted immunoglobulin G. Mixed lymphocyte reaction also indicates that the APA microcapsules could prevent the encapsulated BMP-2 gene-transfected MSCs from initiating the cellular immune response. These results demonstrated that the nonautologous BMP-2 gene-transfected stem cells are of potential utility for enhancement of bone repair and bone regeneration in vivo.
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Affiliation(s)
- H F Ding
- Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, PR China
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Tang RG, Yuan XH, Tang TT, Tang XQ, Hang YQ, Qin HJ, Chen HM, Fang WZ, Long XK. [A dynamic observation on serum cytokine and immunoglobulin (IgG, IgA, IgM) in patients with esophageal cancer]. Zhonghua Yu Fang Yi Xue Za Zhi 2007; 41 Suppl:35-8. [PMID: 17767855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
OBJECTIVE To study the changes of serum interleukin-2 (IL-2), interleukin-8 (IL-8) and immunoglobulin (IgG, IgA, IgM) in patients with esophageal cancer, and to probe the relationship between the levels of IL-2, IL-8, IgG, IgA and IgM and the progress of cancer. METHODS The serum levels of IL-2 and IL-8 were detected by enzyme-linked immunosorbent assay for 72 case of primary esophageal cancer, 68 advanced esophageal cancer and 120 healthy controls, and the level of immunoglobulin (IgG, IgA, IgM) in patients with esophageal cancer was dynamically observed. RESULTS The IL-2 level in patients with early esophageal cancer [(1.69 +/- 0.53) ng/ml] or late esophageal cancer [(1.11 +/- 0.60) ng/ml] was lower than the control group [(2.78 +/- 0.51) ng/ml] (P < 0.01), the late esophageal cancer group was lower than early esophageal cancer group (P < 0.05). The level of IL-8 in patients with early esophageal cancer [(85.48 +/- 6.14) ng/L] or late esophageal cancer [(121.41 +/- 6.22) ng/L] was much higher than the control group [(54.48 +/- 12.20) ng/L] (P < 0.01), the late esophageal cancer group was much higher than early esophageal cancer group (P < 0.01); There was correlation between the levels of IL-2 and IL-8 and the worsen-extent of the tumour in patients with early esophageal cancer or late esophageal cancer. But the level of IgG [(12.23 +/- 2.50) g/L], IgM [(1.60 +/- 0.80) g/L] in the patients with esophageal cancer compared with the level of IgG [(11.65 +/- 3.70) g/L], IgM [(1.46 +/- 0.71) g/L] in the health control group have no significant difference (P > 0.05), the level of IgA [(3.50 +/- 1.10) g/L] in patients with esophageal cancer Compared with the control group [(1.88 +/- 1.08) g/L] has significant difference (P < 0.01), and along with the worsen-extent of the tumor in patients the level of IgA has the increased tendency. CONCLUSION The IL-8 might accelerate the pathogenesis of esophageal cancer, and the IL-2 might restrain. The positive correlation between the level of IgA and the patients with esophageal cancer is observed in this study; the immune maladjustment of IL-2, IL-8 and IgA might be correlative to esophageal cancer, and the IL-2, IL-8 and IgA levels might be an available index for the severity of esophageal cancer, Which may be of some help for clinic practitioners to judge the progress, curative effect and prognosis of the cancer.
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Affiliation(s)
- Ren-Guang Tang
- Department of Clinical Laboratory Center, The Affiliated Hospital of Medical College of Youjiang for Nationality, Baise 533000, China
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19
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Tang TT, Lu B, Yue B, Xie XH, Xie YZ, Dai KR, Lu JX, Lou JR. Treatment of osteonecrosis of the femoral head with hBMP-2-gene-modified tissue-engineered bone in goats. ACTA ACUST UNITED AC 2007; 89:127-9. [PMID: 17259431 DOI: 10.1302/0301-620x.89b1.18350] [Citation(s) in RCA: 65] [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] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The efficacy of β-tricalcium phosphate (β-TCP) loaded with bone morphogenetic protein-2 (BMP-2)-gene-modified bone-marrow mesenchymal stem cells (BMSCs) was evaluated for the repair of experimentally-induced osteonecrosis of the femoral head in goats. Bilateral early-stage osteonecrosis was induced in adult goats three weeks after ligation of the lateral and medial circumflex arteries and delivery of liquid nitrogen into the femoral head. After core decompression, porous β-TCP loaded with BMP-2 gene- or β-galactosidase (gal)-gene-transduced BMSCs was implanted into the left and right femoral heads, respectively. At 16 weeks after implantation, there was collapse of the femoral head in the untreated group but not in the BMP-2 or β-gal groups. The femoral heads in the BMP-2 group had a normal density and surface, while those in the β-gal group presented with a low density and an irregular surface. Histologically, new bone and fibrous tissue were formed in the macropores of the β-TCP. Sixteen weeks after implantation, lamellar bone had formed in the BMP-2 group, but there were some empty cavities and residual fibrous tissue in the β-gal group. The new bone volume in the BMP-2 group was significantly higher than that in the β-gal group. The maximum compressive strength and Young’s modulus of the repaired tissue in the BMP-2 group were similar to those of normal bone and significantly higher than those in the β-gal group. Our findings indicate that porous β-TCP loaded with BMP-2-gene-transduced BMSCs are capable of repairing early-stage, experimentally-induced osteonecrosis of the femoral head and of restoring its mechanical function.
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Affiliation(s)
- T T Tang
- Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong, University School of Medicine, Shanghai, the People's [corrected] Republic of China.
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20
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Yue B, Lu B, Dai KR, Zhang XL, Yu CF, Lou JR, Tang TT. BMP2 gene therapy on the repair of bone defects of aged rats. Calcif Tissue Int 2005; 77:395-403. [PMID: 16362458 DOI: 10.1007/s00223-005-0180-y] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [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: 08/28/2005] [Accepted: 09/15/2005] [Indexed: 12/15/2022]
Abstract
Age-related decline in the number of mesenchymal stem cells (MSCs) and their reduced capability to differentiate osteogenically, along with diminished availability of growth factors, may be major factors accounting for reduced bone formation in the aging mammalian body. In the first part of the study, we compared the number of MSCs in bone marrow (BM) and the content of bone morphogenetic protein 2 (BMP2) in cortical bone tissue in juvenile, adult, and aged (1, 9, and 24 months, respectively) male rats. To assay the influence of aging on osteogenic differentiation ability, MSCs from the three age groups were transduced with the BMP2 gene. Following gene transduction, the production of BMP2 in culture media, expression of osteogenic proteins (e.g., alkaline phosphatase, type Ialpha1 collagen, osteopontin, and bone sialoprotein), as well as ectopic bone formation in athymic mice were compared. Results showed that the number of MSCs in BM as well as the content of BMP2 in cortical bone tissue decreased with age, but no significant differences between the three age groups were found with regard to production of BMP2 or capability of BMP2 gene-modified MSCs to differentiate osteogenically. The second part of the study applied BMP2 gene-modified autologous MSCs/beta-tricalcium phosphate for repair of bone defects in aged rats with positive results. Our data indicate that the osteogenic potential of MSCs of aged rats can be restored following BMP2 gene transduction and that this technique may be a useful approach in the future planning of gene therapy for age-related osteoporotic fractures.
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Affiliation(s)
- B Yue
- Department of Orthopedics, Ninth People's Hospital, Shanghai Second Medical University, Shanghai, People's Republic of China
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21
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Dai KR, Xu XL, Tang TT, Zhu ZA, Yu CF, Lou JR, Zhang XL. Repairing of goat tibial bone defects with BMP-2 gene-modified tissue-engineered bone. Calcif Tissue Int 2005; 77:55-61. [PMID: 16007479 DOI: 10.1007/s00223-004-0095-z] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [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: 05/20/2004] [Accepted: 12/22/2004] [Indexed: 10/25/2022]
Abstract
Bone defects larger than a critical size are major challenges in orthopedic medicine. We combined tissue-engineered bone and gene therapy to provide osteoprogenitor cells, osteoinductive factors, and osteo-conductive carrier for ideal bone regeneration in critical-sized bone defects. Goat diaphyseal bone defects were repaired with tissue and genetically engineered bone implants, composed of biphasic calcined bone (BCB) and autologous bone marrow derived mesenchymal stem cells (BMSC) transduced with human bone morphogenetic protein-2 (hBMP-2). Twenty six goats with tibial bone defects were divided into groups receiving implants by using a combination of BCB and BMSCs with or without the hBMP-2 gene. In eight goats that were treated with BCB that contained hBMP-2 transduced BMSC, five had complete healing and three showed partial healing. Goats in other experimental groups had only slight or no healing. Furthermore, the area and biochemical strength of the callus in the bone defects were significantly better in animals treated with genetically engineered implants. We concluded that the combination of genetic and tissue engineering provides an innovative way for treating critical-sized bone defects.
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Affiliation(s)
- K R Dai
- Department of Orthopaedics, Ninth People's Hospital, Shanghai Second Medical University, 639 Zhizaoju Road, Shanghai 200011, P.R.China.
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22
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Zhang XL, Dai KR, Tang TT. [The effect of stress-relaxation plate fixation on the remodeling of the cortex under plate]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2001; 15:1-4. [PMID: 12563917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To explore the influence of stress-relaxation plate(SRP) fixation on the remodeling of cortex under plate. METHODS Twenty-eight New Zealand rabbits were used in this study, the bilateral tibia were osteotomized in the middle and fixed with SRP (experimental group) and rigid plate (control group) respectively. The scanning electron microscopy was used to observe the bone remodeling process from 2 to 48 weeks after operation. RESULTS There was cortex osteoporosis beneath plate in different degree in both experimental and control groups before 8 weeks, it showed as the disorganization of collagen fiber structure and formation of resorption cavities. In comparison, the osteoporosis degree in experimental group showed milder than that of the control group. After 12 weeks, the resorption cavities became smaller, and the structure of collagen fibers became regular with the alignment parallel to the long axis of cortex. In contrast to the experimental group, the bone osteoporosis under plate of control group exacerbated continuously. CONCLUSION Without removal of the bone plate, SRP fixation not only reduce the degree of plated bone osteoporosis, but also make the osteoporosic bone return to normal.
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Affiliation(s)
- X L Zhang
- Department of Orthopaedics, Ninth People's Hospital, Shanghai Second Medical University, Shanghai, P. R. China 200011
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23
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Abstract
Faithful segregation of sister chromatids during cell division requires properly regulated cohesion between the sister centromeres. The sister chromatids are attached along their lengths, but particularly tightly in the centromeric regions. Therefore specific cohesion proteins may be needed at the centromere. Here we show that Drosophila MEI-S332 protein localizes to mitotic metaphase centromeres. Both overexpression and mutation of MEI-S332 increase the number of apoptotic cells. In mei-S332 mutants the ratio of metaphase to anaphase figures is lower than wild type, but it is higher if MEI-S332 is overexpressed. In chromosomal squashes centromeric attachments appear weaker in mei-S332 mutants than wild type and tighter when MEI-S332 is overexpressed. These results are consistent with MEI-S332 contributing to centromeric sister-chromatid cohesion in a dose-dependent manner. MEI-S332 is the first member identified of a predicted class of centromeric proteins that maintain centromeric cohesion.
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Affiliation(s)
- H N LeBlanc
- Whitehead Institute for Biomedical Research, Department of Biology, Massachusetts Institute of Technology, Cambridge 02142, USA
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Huang HN, Tu ZC, Liao S, Zhao SY, Li CB, Huang SZ, Tang TT, Dai KR. [The gene expression of some cytokines and collagen proteins in rat bone tissue is related to estradiol (E2) and age]. Shi Yan Sheng Wu Xue Bao 1999; 32:373-9. [PMID: 12548865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
30 female SD rats (3 months old) are equally divided into three groups: ovariectomy (OVX) rats, sham-operated (SHO) rats and 17 beta estradiol (E2) treated OVX rats. For each group, mRNA was isolated from long bone at one month and three months after surgery, respectively. mRNA was reverse transcribed into single strand cDNA and then used as a probe hybridizing to the DNA fragments of col I alpha(1), col I alpha(2), col III, col V, fibronectin, IL-1, IL-6, TGF-beta, LIF, TNF-alpha, TNF-beta by reverse northern and dot blot hybrization. The housekeeping gene, gapdh, was used as an internal control. The results show that in bone of rat, the stable expression of col I alpha (1), col I alpha(2) and col III are related to age not ovariectomy, while supplement with E2 can inhibit the expression of col III and col I alpha(2) completely. The expression of col V, IL-1, IL-6 can be inhibited by estrogen and recovered by removal of estrogen by OVX, then addition of E2 decreased it to the normal level. The expression of TGF-beta is also inhibited by estrogen. It increased during one month after overiectomy, and partially decreased in E2 complemented rat. Three months after surgery, the level of increasing and decreasing is less evident as two months ago. It seems that in young SD rat, the expression of TGF-beta is related to both estrogen and age.
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Affiliation(s)
- H N Huang
- Institute of Genetics, Fudan University, Shanghai 200433
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Affiliation(s)
- T T Tang
- Division of Pediatric Radiology, Loma Linda University Children's Hospital, 11234 Anderson St, Loma Linda, CA 92354, USA
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26
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Abstract
Sister-chromatid cohesion is essential for the faithful segregation of chromosomes during cell division. Recently biochemical analysis with Xenopus extracts suggests that cohesion is established during S phase by a cohesion complex but that other proteins must maintain it in mitosis. The Drosophila melanogaster MEI-S332 protein is present on centromeres in mitosis and meiosis and is essential for cohesion at the centromeres in meiosis II. Here, we analyze the timing of MEI-S332 assembly onto centromeres and the functional domains of the MEI-S332 protein. We find that MEI-S332 is first detectable on chromosomes during prometaphase, and this localization is independent of microtubules. MEI-S332 contains two separable functional domains, as mutations within these domains show intragenic complementation. The carboxy-terminal basic region is required for chromosomal localization. The amino-terminal coiled-coil domain may facilitate protein-protein interactions between MEI-S332 and male meiotic proteins. MEI-S332 interacts with itself in the yeast two-hybrid assay and in immunoprecipitates from Drosophila oocyte and embryo extracts. Thus it appears that MEI-S332 assembles into a multimeric protein complex that localizes to centromeric regions during prometaphase and is required for the maintenance of sister-chromatid cohesion until anaphase, rather than its establishment in S phase.
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Affiliation(s)
- T T Tang
- Whitehead Institute and Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts USA 02142, USA
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Moore DP, Page AW, Tang TT, Kerrebrock AW, Orr-Weaver TL. The cohesion protein MEI-S332 localizes to condensed meiotic and mitotic centromeres until sister chromatids separate. J Cell Biol 1998; 140:1003-12. [PMID: 9490715 PMCID: PMC2132693 DOI: 10.1083/jcb.140.5.1003] [Citation(s) in RCA: 101] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The Drosophila MEI-S332 protein has been shown to be required for the maintenance of sister-chromatid cohesion in male and female meiosis. The protein localizes to the centromeres during male meiosis when the sister chromatids are attached, and it is no longer detectable after they separate. Drosophila melanogaster male meiosis is atypical in several respects, making it important to define MEI-S332 behavior during female meiosis, which better typifies meiosis in eukaryotes. We find that MEI-S332 localizes to the centromeres of prometaphase I chromosomes in oocytes, remaining there until it is delocalized at anaphase II. By using oocytes we were able to obtain sufficient material to investigate the fate of MEI-S332 after the metaphase II-anaphase II transition. The levels of MEI-S332 protein are unchanged after the completion of meiosis, even when translation is blocked, suggesting that the protein dissociates from the centromeres but is not degraded at the onset of anaphase II. Unexpectedly, MEI-S332 is present during embryogenesis, localizes onto the centromeres of mitotic chromosomes, and is delocalized from anaphase chromosomes. Thus, MEI-S332 associates with the centromeres of both meiotic and mitotic chromosomes and dissociates from them at anaphase.
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Affiliation(s)
- D P Moore
- Whitehead Institute for Biomedical Research, and the Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA
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28
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Abstract
Three previously unreported DRB1*03 alleles are described, adding to the diversity of the DRB1 family of alleles. DRB1*03022 contains a silent substitution at codon 77. DRB1*0307 differs from DRB1*03011 by a substitution at codon 26 resulting in a predicted change from tyrosine to phenylalanine. DRB1*0308 is almost identical to DRB1*03011 differing at codon 58 which specifies the glutamic acid residue commonly found in DRB1*11 alleles. The new alleles (DRB1*03022,*0307,*0308) may have arisen by gene conversion-like events and add to the increasing complexity of the HLA system.
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Affiliation(s)
- J M Ellis
- Department of Microbiology and Immunology, Georgetown University Medical Center, Washington, District of Columbia, USA
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Tang TT, Segura AD, Chen YT, Ricci LM, Franciosi RA, Splaingard ML, Lubinsky MS. Neonatal hypotonia and cardiomyopathy secondary to type IV glycogenosis. Acta Neuropathol 1994; 87:531-6. [PMID: 8059607 DOI: 10.1007/bf00294181] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A neonate with deficiency of branching enzyme (glycogenosis type IV) presented symptoms of severe hypotonia pre- and postnatally, and dilated cardiomyopathy in early infancy. The classical clinical manifestation of liver cirrhosis was not present, although amylopectin-like inclusions were found in the hepatocytes. In contrast to a previous report, the neurons in the brain stem and spinal anterior horns contained PAS-positive, diastase-resistant deposits. The combined involvement of the muscles and motor neurones could account for the severity of hypotonia. The muscle biopsy, electromyogram and biochemical and enzyme assays were helpful in establishing the diagnosis.
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Affiliation(s)
- T T Tang
- Department of Pathology, Children's Hospital of Wisconsin, Milwaukee
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Tang TT, Esterly NB, Lubinsky MS, Oechler HW, Harb JM, Franciosi RA. GM1-gangliosidosis type 1 involving the cutaneous vascular endothelial cells in a black infant with multiple ectopic Mongolian spots. Acta Derm Venereol 1993; 73:412-5. [PMID: 7906450 DOI: 10.2340/0001555573412415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
GM1-gangliosidosis (GM1) is one of the metabolic storage diseases, of which a differential diagnosis requires an array of biochemical assays to determine the enzyme deficiency. This approach is not only time-consuming and costly but also unavailable to most hospital laboratories. However, a presumptive diagnosis of GM1 may be made on the basis of coarse facial feature, foamy endothelial cells in the cutaneous blood vessels and ectopic Mongolian spots, if present. A more definitive diagnosis of GM1 is then made on the demonstration of deficiency of GM1 beta-galactosidase in leukocytes, plasma or cultured skin fibroblasts. Thus, a battery of enzyme tests may be averted.
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Affiliation(s)
- T T Tang
- Department of Pathology, Children's Hospital of Wisconsin, Milwaukee 53201
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Abstract
PURPOSE The authors report a case of an epithelioid hemangioendothelioma arising in the orbital bones. A review of the literature related to this rare orbital neoplasm identified eight well-documented cases, one of which occurred in a patient younger than that reported here, but none of which originated in bone. METHODS A 3 1/2-month-old boy had a left inferior orbital mass that had grown rapidly over a 3-day period. An emergency computed tomography scan showed a large neoplasm with significant bone destruction of the zygoma and maxilla. Initial examination suggested a rhabdomyosarcoma, and a transconjunctival biopsy was performed, which was complicated by significant blood loss. The final pathologic diagnosis was an epithelioid hemangioendothelioma, or grade 2 hemangioendothelioma, of bone origin. No other sites of disease were found on metastatic survey. Subsequent treatment consisted of an en bloc tumor resection sparing the orbital soft tissues and globe. RESULTS The patient is free of disease and has normal visual fixation and ocular motility 20 months after surgery. CONCLUSION Epithelioid hemangioendothelioma, a vascular malignancy of endothelial cell origin, very rarely involves the orbit. This case is notable for its early development, rapid growth, bony origin, and epithelioid histology.
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Affiliation(s)
- D B Lyon
- Department of Ophthalmology, University of Wisconsin, Madison
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Abstract
Anesthesia-induced rhabdomyolysis in infancy may represent an unsuspected Duchenne dystrophy. In order to establish the diagnosis of this genetic disease more definitively, a dystrophin test is a requisite following the conventional creatine kinase test and light and electron microscopies of the muscle biopsy.
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Affiliation(s)
- T T Tang
- Department of Pathology, Children's Hospital of Wisconsin, Milwaukee 53201
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Tang TT, Whelan HT, Meyer GA, Strother DR, Blank EL, Camitta BM, Franciosi RA. Optic chiasm glioma associated with inappropriate secretion of antidiuretic hormone, cerebral ischemia, nonobstructive hydrocephalus and chronic ascites following ventriculoperitoneal shunting. Childs Nerv Syst 1991; 7:458-61. [PMID: 1790531 DOI: 10.1007/bf00263189] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [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] [Indexed: 12/28/2022]
Abstract
An optic chiasm glioma may cause loss of vision, endocrine disturbances, hydrocephalus and cerebral ischemia due to its proximity to the pituitary, hypothalamus, III ventricle and internal carotids. A 3-month-old infant with optic chiasm glioma developed hypopituitarism and inappropriate secretion of antidiuretic hormone with plasma hypo-osmolality. The cerebrospinal fluid (CSF) protein concentration was markedly elevated. The impairment of fluid absorption via arachnoid villi and peritoneum by the high protein content, and reversed osmotic gradient between protein-rich CSF and hypo-osmolar plasma may have contributed to both nonobstructive hydrocephalus and recurrent ascites following ventriculoperitoneal shunting. Cerebral ischemia from carotid compression may have led to cerebral atrophy.
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Affiliation(s)
- T T Tang
- Department of Pathology, Children's Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee 53201
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Abstract
Limb body-wall complex and sirenomelia sequence are uncommon birth defects and their association is extremely rare. Their overlapping manifestations and their concurrence in our patient suggest that they share a common cause and belong to a group of pathologically closely related conditions. Embryonic vascular disruption may be a common pathogenesis in both anomalies.
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Affiliation(s)
- T T Tang
- Department of Pathology, Medical College of Wisconsin, Milwaukee
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Brandstetter Y, Weinhouse E, Splaingard ML, Tang TT. Cor pulmonale as a complication of methylmalonic acidemia and homocystinuria (Cbl-C type). Am J Med Genet 1990; 36:167-71. [PMID: 2368803 DOI: 10.1002/ajmg.1320360208] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We report an infant with a bronchiolitis-like illness and rapid deterioration who developed a cor pulmonale-like picture with a dilated right ventricle. Urinary organic acid assays established a probable diagnosis of Cbl-C-type methylmalonic aciduria, later confirmed by complementation studies. Despite medical intervention and cyanocobalamin treatment the patient died on his tenth hospital day. Postmortem examination showed the presence of thromboemboli in the pulmonary circulation. We hypothesize that acute cor pulmonale developed in this infant secondary to thromboembolism of his pulmonary circulation. A review of the literature shows that thromboembolism may be a part of this disease process.
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Affiliation(s)
- Y Brandstetter
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee
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Abstract
The term "inflammatory myofibrohistiocytic proliferation" (IMP) has been proposed to replace the conventional designations of plasma cell granuloma and inflammatory pseudotumor. Three cases of extrapulmonary IMP in children are reported, including an intracerebral lesion which has been formerly undescribed. In children, IMP may be associated with microcytic hypochromic anemia, hypergammaglobulinemia, and high erythrocyte sedimentation rate. In this clinical setting, differentiation of a rapidly growing but benign IMP from a bona fide sarcoma is of paramount importance.
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Affiliation(s)
- T T Tang
- Department of Pathology, Children's Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee 53201
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Kelly KJ, Garland JS, Tang TT, Shug AL, Chusid MJ. Fatal rhabdomyolysis following influenza infection in a girl with familial carnitine palmityl transferase deficiency. Pediatrics 1989; 84:312-6. [PMID: 2748260] [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: 01/02/2023] Open
Abstract
Severe rhabdomyolysis following an influenza B infection developed in a previously well 13-year-old girl. There was no history of trauma. Her course was complicated by episodes of severe hyperkalemia, hypocalcemia, hyperphosphatemia, and myoglobinuria. Renal failure, hypertension, and life-threatening arrhythmias developed; she died. Muscle biopsy revealed that this girl had carnitine palmityl transferase deficiency. An asymptomatic sister was demonstrated to have the same disorder. Although carnitine palmityl transferase deficiency is usually associated with mild bouts of rhabdomyolysis that become apparent only in adulthood, severe forms of this disorder may be seen in children. Life-threatening rhabdomyolysis and myoglobinuria may follow any infection associated with decreased intake. If carnitine palmityl transferase deficiency is diagnosed in a proband, other siblings should be evaluated so that proper preventative measures can be undertaken to help prevent the development of symptoms in susceptible individuals who have not been recognized to have the disease.
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Affiliation(s)
- K J Kelly
- Department of Pediatrics and Pathology, Children's Hospital, Milwaukee, WI 53233
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Abstract
Rhabdomyosarcoma is one of the most common malignancies of the mesenchymal tissue in the head and neck region. A case of a 26-year-old male with oral rhabdomyosarcoma is presented. The clinical and pathologic aspects of this malignancy are also reviewed. Furthermore, the histopathologic and ultrastructural features of this neoplasia are described and the important role of electron microscopy in diagnosis of the myogenic tumor is emphasized. Finally, different modes of treatment for the rhabdomyosarcoma are discussed.
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Affiliation(s)
- E M Sadeghi
- Marquette University, School of Dentistry, Medical College of Wisconsin, Milwaukee
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Abstract
An 8-year-old girl presented with cutaneous lymphoma without bone marrow or visceral involvement. The tumor cells displayed convoluted and invaginated euchromatic nuclei. The immunophenotype of these cells was non-T/non-B (Ia+, CALLA-, SIg-, TdT-, E-, Thy-). The skin lesions regressed promptly with chemotherapy including cyclophosphamide, vincristine, methotrexate, doxorubicin, and cytosine arabinoside. Six months after the completion of chemotherapy (18 months postdiagnosis), the patient had a relapse of the skin lesions with concurrent bone marrow involvement. The cutaneous infiltrate at relapse was morphologically and immunophenotypically similar to that at the onset of illness. However, the bone marrow infiltrate, although morphologically similar to the cutaneous tumor, had an immunophenotype consistent with T-cells (Ia+, CALLA-, SIg-, E-, TdT+, Thy+, OKT4+, OKT8+). As in adults, primary cutaneous non-T/non-B lymphomas in children may be derived from T-cells or their precursors.
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Tang TT, Harb JM, Dunne WM, Wells RG, Meyer GA, Chusid MJ, Casper JT, Camitta BM. Cerebral toxoplasmosis in an immunocompromised host. A precise and rapid diagnosis by electron microscopy. Am J Clin Pathol 1986; 85:104-10. [PMID: 3940413 DOI: 10.1093/ajcp/85.1.104] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
In immunocompromised patients with cerebral toxoplasmosis, the tachyzoite forms rather than cystic and bradyzoite forms of the protozoon are commonly seen. These tachyzoites are minute, scattered among cellular debris, sometimes lodged inside macrophages and neutrophils, and difficult to visualize by light microscopy, even with special stains. Immunodiagnostic tests may be falsely negative due to inability of the host to produce appropriate antibodies. Isolation of the organism is dangerous because Toxoplasma gondii is highly infective. In this situation, transmission electron microscopy (EM) may be a diagnostic tool of choice. It demonstrates the fine definitive features of the protozoon and can be expedited to give results in five hours. Further evaluation of EM for diagnosing possible toxoplasmosis in immunocompromised patients is indicated.
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Abstract
This report describes an exceptional example of cerebral neuroblastoma in association with neoplastic glial cells, which were frequently arranged in clusters around the supporting blood vessels. The neuroblastic nature of the tumor was confirmed by the presence of numerous dense-core vesicles in the cell processes. The glial nature of the associated cells was confirmed by their positivity for glial fibrillary acid protein by immunoperoxidase staining and by the presence of abundant cytoplasmic filaments of intermediate size on electron microscopy. Of particular interest was the presence of dense-core vesicles in some of the glial cells, and that of a basal lamina underlying the perivascular glial cells. The tumor was interpreted as a composite cerebral neuroblastoma and astrocytoma. No undifferentiated neuroepithelial stem cells could be identified. The cytogenesis of this mixed neuroepithelial neoplasm is uncertain.
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Tang TT, Harb JM, Grossberg SE, Sedmak GV, Murphy JV. Leukocyte tubuloreticular inclusions in Reye's syndrome. Arch Pathol Lab Med 1985; 109:543-5. [PMID: 2581524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Tubuloreticular inclusions (TRI) have been observed in the rough endoplasmic reticulum of blood lymphocytes and monocytes in two cases of Reye's syndrome initiated by influenza infections. Tubuloreticular inclusions are seen in these mononuclear leukocytes during the acute phase of illness, but not during convalescence. Since TRI have been demonstrated in peripheral mononuclear leukocytes in patients with acquired immunodeficiency syndrome, systemic lupus erythematosus, and certain viral infections including T-cell leukemia, it may be that the finding of TRI in Reye's syndrome reflects a viral infection and/or immune dysfunction, if such association is not proved to be fortuitous.
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Abstract
The authors performed a retrospective analysis of 87 consecutive immunocompromised patients who underwent open-lung biopsy at the University of Utah Medical Center, Salt Lake City, Utah, from January 1971 to June 1982. A specific histologic diagnosis was obtained in 62 (71%) of the patients, 33 of whom had infections. Pneumocystis carinii was the most common microbial pathogen (16 patients), but no cases have been observed since 1980 when the routine use of prophylactic trimethoprim/sulfa began. The other specific diagnoses included malignancy or drug-induced lung disease. Specific therapy was available for 52 patients, and in 33 cases, a change in therapy was necessary to treat according to the lung biopsy diagnosis. Forty-one patients received an adequate course of therapy and 27 (66%) of these improved clinically, including 16 of 26 patients with infections, 11 of 14 with malignancies, and 1 of 2 with a vasculitis. Among the subgroup of 33 patients for whom a new, specific therapeutic option was available as a result of the biopsy diagnosis 21 (64%) responded to the treatment. Eleven significant operative complications were encountered, but no deaths were attributable to the biopsy. An open-lung biopsy in immunocompromised patients is a relatively safe, accurate diagnostic procedure which frequently facilitates appropriate therapy and clinical improvement.
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Abstract
Cerebral blastomycosis may simulate a brain tumor. Its diagnosis is sometimes very difficult. The morphologic identification of the fungus may be misleading because it shares some common features with many other dimorphic fungi. Culturing and conversion of the organism from mycelial phase to yeast phase are not always successful. Immunofluorescent staining of the biopsy tissue is useful in confirming the diagnosis. However, a combination of double immunodiffusion (DID) test and complement fixation (CF) test makes the diagnosis more accurate and reliable. The direct role of macrophages in defending the host against blastomycosis is illustrated by electron microscopy.
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Abstract
A case of peritoneal metastasis via a ventriculoperitoneal shunt 14 months following biopsy and irradiation of an intracerebral germinoma is presented. Metastatic abdominal disease has been controlled at 32 months postmetastatic diagnosis by abdominal irradiation and systemic chemotherapy. The occurrence of ventriculoperitoneal shunt metastases and control of extracranial metastases from intracerebral germinomas are discussed.
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Tang TT, Glicklich M, Hodach AE, Oechler HW, McCreadie SR. Ulcerative eosinophilic granuloma of the tongue. A light- and electron-microscopic study. Am J Clin Pathol 1981; 75:420-5. [PMID: 7211763 DOI: 10.1093/ajcp/75.3.420] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Ulcerative eosinophilic granuloma of the tongue simulates histiocytosis X or cancerous lesions, and may be subjected to unnecessary excessive treatment. This case report illustrates its benign, self-limited nature, discussed the differential diagnosis, and postulates its pathogenesis on the basis of light- and electron-microscopic findings.
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Abstract
Multicentric subcutaneous and skeletal nodules with histologic features of chordoma developed over a period of 3 months in a black infant. Radiolucent intracranial lesions were demonstrated by pneumoencephalogram and computerized tomography scan. The patient received chemotherapy and the nodules regressed. After a follow-up of 7 years, there has been no recurrence of these chordomoid lesions and the child enjoys good health and normal growth and development. In retrospect, these nodules appear to be a benign, self-limited heterotopias and not malignancies. The cells with physaliphorous characteristics may represent unusual differentiation of fibroblasts rather than indicating notochordal origin.
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Abstract
A 2 1/2-year-old girl with acute lymphoblastic leukemia received chemotherapy and prophylactic cranial irradiation. After six years of remission, including three years off therapy, metastatic thyroid carcinoma appeared in the cervical lymph nodes. The predisposing factors for the development of thyroid carcinoma as a second malignancy in this case are discussed. It is suggested that thyroid carcinoma should be added to the growing list of second malignancies in acute lymphoblastic leukemia and that careful thyroid examination be included in the follow-up of long-term survivors.
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Sheth KJ, Tang TT, Good TA. Fabry's disease in a black kindred. Am J Dis Child 1979; 133:1178-81. [PMID: 228550 DOI: 10.1001/archpedi.1979.02130110086017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In a 16-member black kindred with Fabry's disease, four hemizygous males had plasma alpha-galactosidase levels less than 6% and seven heterozygous females had plasma alpha-galactosidase levels between 10% and 50% of normal. A 16-year-old index male had hypertension with left ventricular hypertrophy, abnormal renal function, tortuous retinal veins, "myelin" inclusions in bone marrow macrophages, and intraepithelial inclusion bodies in the kidney. Scrotal angiectasia developed a year after diagnosis. The three other affected males had left ventricular hypertrophy and retinal vein tortuosity. Of the seven carrier females, five had frequent headaches, four had retinal vessel changes, three had proteinuria with normal renal function, and two had bundle-branch blocks on ECGs. There was no deuteranomalopia in this family, although the inheritance pattern of the Fabry gene is X-linked recessive.
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