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Liang TY, Lu LH, Tang SY, Zheng ZH, Shi K, Liu JQ. Current status and prospects of basic research and clinical application of mesenchymal stem cells in acute respiratory distress syndrome. World J Stem Cells 2023; 15:150-164. [PMID: 37180997 PMCID: PMC10173811 DOI: 10.4252/wjsc.v15.i4.150] [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: 12/20/2022] [Revised: 01/20/2023] [Accepted: 03/20/2023] [Indexed: 04/26/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a common and clinically devastating disease that causes respiratory failure. Morbidity and mortality of patients in intensive care units are stubbornly high, and various complications severely affect the quality of life of survivors. The pathophysiology of ARDS includes increased alveolar-capillary membrane permeability, an influx of protein-rich pulmonary edema fluid, and surfactant dysfunction leading to severe hypoxemia. At present, the main treatment for ARDS is mechanical treatment combined with diuretics to reduce pulmonary edema, which primarily improves symptoms, but the prognosis of patients with ARDS is still very poor. Mesenchymal stem cells (MSCs) are stromal cells that possess the capacity to self-renew and also exhibit multilineage differentiation. MSCs can be isolated from a variety of tissues, such as the umbilical cord, endometrial polyps, menstrual blood, bone marrow, and adipose tissues. Studies have confirmed the critical healing and immunomodulatory properties of MSCs in the treatment of a variety of diseases. Recently, the potential of stem cells in treating ARDS has been explored via basic research and clinical trials. The efficacy of MSCs has been shown in a variety of in vivo models of ARDS, reducing bacterial pneumonia and ischemia-reperfusion injury while promoting the repair of ventilator-induced lung injury. This article reviews the current basic research findings and clinical applications of MSCs in the treatment of ARDS in order to emphasize the clinical prospects of MSCs.
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Affiliation(s)
- Tian-Yu Liang
- Emergency and Critical Care Center, Intensive Care Unit, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou 310014, Zhejiang Province, China
| | - Li-Hai Lu
- Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Si-Yu Tang
- The Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Zi-Hao Zheng
- Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang Province, China
| | - Kai Shi
- Department of Respiratory Medicine, The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, Zhejiang Province, China
| | - Jing-Quan Liu
- Emergency and Critical Care Center, Intensive Care Unit, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou 310014, Zhejiang Province, China.
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Li XJ, Lu LH, Qiu XM, Chen MS, Huang HJ. [Clinicopathological features of myoepithelioma-like tumors of the vulvar region]. Zhonghua Bing Li Xue Za Zhi 2020; 49:1055-1057. [PMID: 32992423 DOI: 10.3760/cma.j.cn112151-20200304-00171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- X J Li
- Department of Pathology, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China
| | - L H Lu
- Department of Pathology, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China
| | - X M Qiu
- Department of Pathology, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China
| | - M S Chen
- Department of Pathology, Longyan First Hospital, Affiliated to Fujian Medical University, Longyan 364000, China
| | - H J Huang
- Department of Pathology, Fujian Provincal Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
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Kennedy JE, Reid MW, Lu LH, Cooper DB. Validity of the CES-D for depression screening in military service members with a history of mild traumatic brain injury. Brain Inj 2019; 33:932-940. [DOI: 10.1080/02699052.2019.1610191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- J E Kennedy
- Department of Neurology, Defense and Veterans Brain Injury Center (DVBIC) Brooke Army Medical Center, Ft Sam Houston, Texas, USA
| | - M W Reid
- Department of Neurology, Defense and Veterans Brain Injury Center (DVBIC) Brooke Army Medical Center, Ft Sam Houston, Texas, USA
| | - L H Lu
- Department of Neurology, Defense and Veterans Brain Injury Center (DVBIC) Brooke Army Medical Center, Ft Sam Houston, Texas, USA
| | - D B Cooper
- Defense and Veterans Brain Injury Center (DVBIC) San Antonio VA Polytrauma Rehabilitation Center, South Texas Veterans Healthcare System, San Antonio, Texas, USA
- Department of Psychiatry, UT-Health San Antonio, San Antonio, Texas, USA
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Guo ZQ, Lü QS, Wang Z, Lu LH, Lu N, Wen XW, Wu WX, Yao M. [Expression and clinical significance of Ser10 phosphorylated p27(kip1) protein in human breast carcinoma]. Zhonghua Yi Xue Za Zhi 2017; 97:1396-1399. [PMID: 28535625 DOI: 10.3760/cma.j.issn.0376-2491.2017.18.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the expression and clinicopathological significance of Ser10 phosphorylated p27(kip1)(P-p27Ser10) protein in human breast carcinoma tissue. Methods: Tissue specimens were obtained from 111 cases with breast carcinoma from January 2004 to December 2005. And the expression of P-p27Ser10 protein for each specimen was detected by immunohistochemical (EnVision) analysis. Six representative paired samples of cancerous and paired adjacent normal tissues were collected and detected by Western blot. The relationships between the expression levels of P-p27Ser10 protein and its clinicopathological characteristics in primary breast carcinoma were retrospectively analyzed.The association of P-p27Ser10 and Jab1 protein was detected by co-immunoprecipitation method. Results: A high-level expression of P-p27Ser10 was present in cancerous tissues but not in paired adjacent normal tissues. The positive expression rate of P-p27Ser10 protein was as high as 88.3% (98/111) and 7.2% (8/111) in cancerous and paired adjacent normal tissues respectively (P<0.05). P-p27Ser10 expression was correlated with tumor size, lymph node metastasis and TNM stage (all P<0.05). P-p27Ser10 expression was significantly correlated with Ki-67 (r=0.582, P<0.05), and inversely correlated with p27 (r=-0.426, P<0.05). Co-immunoprecipitation revealed that the association of P-p27Ser10 and Jab1 protein was increased in breast carcinoma. Conclusion: Over-expression of P-p27Ser10 protein might play an important role in the pathogenesis of breast carcinoma. P-p27Ser10 protein therefore represents a novel diagnostic marker and therapeutic target in patients with breast carcinoma.
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Affiliation(s)
- Z Q Guo
- Department of Pathology, the First Affiliated Hospital of Jiaxing Collage, Jiaxing 314000, China
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Abstract
Tomato yellow leaf curl Kanchanaburi virus (TYLCKaV) is a bipartite begomovirus (genus Begomovirus, family Geminiviridae) reported to infect tomato and eggplant in Thailand and Vietnam (1,2). In April 2013, eggplant (Solanum melongena L.) plants exhibiting yellow mosaic symptoms were found in a suburb of Vientiane, Laos. Three symptomatic samples were collected. Total DNA was extracted from leaves by the CTAB method, and used as template for PCR using the degenerate primer pair AV494/CoPR (3). The PCR results suggested that the plants were infected by a begomovirus. The begomoviral genome was amplified by rolling circle amplification (RCA) with TempliPhi kit (GE Healthcare) following the manufacturer's protocol. RCA product was digested with the endonucleases BamH I, EcoR I, Hind III, Kpn I, Pst I, and Xba I, respectively. The fragments about 2.1 kbp (with Pst I digestion) and 1.5 kbp (with Xba I digestion) in size were cloned and sequenced. The sequence of the 2.1-kbp fragment showed similarity with begomovirus DNA-A component. A pair of primers for amplification of the full-length DNA-A, AF (5'-CTTCATCGTTTCTCAGCATCAT-3') and AR (5'-CACTTGCACACGATCTCTAAGA-3') were designed from the 2.1-kbp sequence. The full-length DNA-A was 2,752 nucleotides and encoded six putative ORFs (GenBank Accession No. KF218820). The sequence of the 1.5-kbp fragment shared similarity with begomoviruses DNA-B. The begomoviral circular DNA-B was amplified using the pair of primers BF (5'-GTAACAGCCGAAGTGCACG-3') and BR (5'-AATGGAGAGACACCAGTCTGCC-3') designed from the 1.5-kbp sequence. PCR yielded a product of expected size (~1.4 kbp). The full-length DNA-B sequence was obtained by assembling the two sequences. The DNA-B was 2,734 nucleotides and encoded two putative ORFs (GenBank Accession No. KF218821). The sequences of DNA-A and DNA-B of isolate Laos shared the highest nucleotide sequences identities at 99.0% and 98.0% with those of TYLCKaV-[TH:Kan 1:01] (AF511529), and [TH:Kan 2:Egg:01] (AF511527), respectively. The results indicated that the virus associated with eggplant yellow mosaic disease was an isolate of TYLCKaV. To our knowledge, this is the first report of this begomovirus in Laos. Our results indicate that this virus may be spreading in Southeast Asia and scientists there should be aware of this virus when developing begomovirus-resistant varieties of tomato or eggplant. References: (1) S. K. Green et al. Plant Dis. 87:446, 2003. (2) C. Ha et al. J. Gen. Virol. 89:312, 2008.(3) Z. F. He et al. Arch. Virol. 154:1199, 2009.
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Affiliation(s)
- Y F Tang
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, China. This study was funded by the International Science and Technology Collaboration Program of China (2011DFB30040), the International Science and Technology Collaboration Program of Guangdong, China (2011B050400003), and the Science and Technology Program of Guangdong, China (2012A020200015)
| | - Z F He
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, China. This study was funded by the International Science and Technology Collaboration Program of China (2011DFB30040), the International Science and Technology Collaboration Program of Guangdong, China (2011B050400003), and the Science and Technology Program of Guangdong, China (2012A020200015)
| | - Z G Du
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, China. This study was funded by the International Science and Technology Collaboration Program of China (2011DFB30040), the International Science and Technology Collaboration Program of Guangdong, China (2011B050400003), and the Science and Technology Program of Guangdong, China (2012A020200015)
| | - L H Lu
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 510640, China. This study was funded by the International Science and Technology Collaboration Program of China (2011DFB30040), the International Science and Technology Collaboration Program of Guangdong, China (2011B050400003), and the Science and Technology Program of Guangdong, China (2012A020200015)
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Shi QZ, Lu LH, Hu JD, Chen YY, Yang YL. [The study of inhibitory and apoptosis of K562 cells by antisense oligodeoxynucleotides]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2001; 17:213-216. [PMID: 21189610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
AIM To study the effect of bcr-abl fusion gene antisense phosphorothioate oligodeoxynucleotide (Aspo) on bcr-abl mRNA and apoptosis of K562 cells. METHODS Cells were exposed to Aspo. P210 was measured by Flow Cytometry. Cellular bcr-abl mRNA was detected by RT-PCR mediquantitative analysis. Cell apoptosis was measured by Flow Cytometry and observed by electron microscope (EM). RESULTS The P210 was down regulated or completely suppressed after 24h treatment with more than 5 micromol/L Aspo. The decrease of bcr-abl mRNA was about 45%. After incubation 48 h with 10 micromol/L Aspo. Also, 20% - 30% K562 cells were induced to apoptosis at 120 h when the cell number was 1 x 10(4)/ml at the beginning. While the cell number was 1 x 10(5)/ml, the apoptosis rate was 30% after 48 h culture and the typical morphology of apoptosis cell was observed under EM. CONCLUSION bcr-abl Aspo could inhibit the expression of bcr-abl mRNA and P210. Also,it could induce apoptosis of K562 cells.
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Affiliation(s)
- Q Z Shi
- Fujian Institute of Hematology, Union Hospital Affiliated to Fujian Medical University, Fuzhou 350001, China
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Abstract
OBJECTIVE Patients who misperceive that they are moving their paralysed arm (phantom movements) may not recognise its weakness. Therefore, the relation between phantom limb movements and anosognosia for hemiplegia during selective right hemispheric anaesthesia (the Wada test) was examined. METHODS Nine patients with intractable epilepsy underwent the Wada test. During the right hemispheric injection, after the onset of hemiparesis, anosognosia was assessed by asking patients if they were weak. The patient's vision was limited such that they could not see the position of their limbs. Phantom movements were tested for by asking patients to attempt to lift their left upper limb, and to demonstrate their left limb's position by placing their right limb in the same position as their left. Proprioception was tested by lifting the patient's paretic upper limb and having patients demonstrate this position by lifting their right limb to the same position. RESULTS Three patients experienced left phantom limb movements, and five were anosognosic for their hemiplegia. However, phantom movement occurred in only one patient with anosognosia. The other two patients with phantom movement were without anosognosia. The patient with phantom movement and anosognosia had impaired proprioception. The two patients with phantom movement but without anosognosia had intact proprioception. CONCLUSIONS Phantom movement in the presence of a proprioceptive deficit could contribute to anosognosia. However, anosognosia and phantom movement are dissociable; therefore phantom movement cannot alone account for anosognosia. Because phantom movement occurred with and without proprioceptive deficits, proprioceptive loss is not a prerequisite for phantom movement.
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Affiliation(s)
- L H Lu
- Department of Clinical and Health Psychology, College of Health Professions, University of Florida, Gainesville, FL 32610-0236, USA
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Lu LH, Barrett AM, Cibula JE, Gilmore RL, Heilman KM. Proprioception more impaired distally than proximally in subjects with hemispheric dysfunction. Neurology 2000; 55:596-7. [PMID: 10953204 DOI: 10.1212/wnl.55.4.596] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [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: 11/15/2022] Open
Abstract
Holmes noted that with hemispheric injuries proprioceptive disturbances were more marked in the distal than proximal limb segments and proposed that this difference was related to the size of cortical sensory representations. An alternative hypothesis is that sensation from distal segments projects to the contralateral hemisphere and sensation from proximal segments projects to both hemispheres. Selective hemispheric anesthesia was used to test these alternative hypotheses and revealed a decrement in distal but not proximal proprioception with hemispheric anesthesia, thereby supporting the bilateral projection hypothesis.
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Affiliation(s)
- L H Lu
- Department of Clinical and Health Psychology, College of Health Professions, University of Florida, Gainesville, 32610, USA
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Lu LH, Lee K, Imoto S, Kyomen S, Tanne K. Histological and histochemical quantification of root resorption incident to the application of intrusive force to rat molars. Eur J Orthod 1999; 21:57-63. [PMID: 10191578 DOI: 10.1093/ejo/21.1.57] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [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: 11/13/2022]
Abstract
This study was conducted to investigate the nature of root resorption resulting from intrusive forces applied to the rat lower molars, by means of histological and histochemical techniques with tartrate resistant acid phosphatase (TRAP). Thirty-eight 13-week-old Wistar strain male rats were used. Intrusive force was created by a fixed appliance which was adjusted to exert an initial force of 50 g for the duration of 1, 2, and 3 weeks. The degree of root resorption and distribution of TRAP positive cells were evaluated. On the root surface, the TRAP positive scores were low in the apical regions. Significant differences in the scores were found in the inter-radicular region of the roots between the experimental and control groups for the 2- and 3-week groups. More active resorption of bone occurred during the experimental period, as denoted by greater TRAP positive scores on the bone than on the root surface. Root resorption scores in the apical root region were larger in the 2- and 3-week groups than in the 1-week group. Significant differences in the root resorption scores were also found between the 1- and 3-week groups in the inter-radicular region, indicating that intrusive force application of a longer duration may lead to a higher frequency of root resorption. It is shown that, irrespective of the level of TRAP positive cells and root resorption scores, the degree of root resorption activity is higher in the apical root region than in the inter-radicular area. These results indicate that cellular cementum may be resorbed more easily because of its richer organic components and low mineralized structure.
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Affiliation(s)
- L H Lu
- Department of Orthodontics, Hiroshima University School of Dentistry, Japan
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Abstract
1. The mechanisms of the antiproliferative effect of epigallocatechin, one of the catechin derivatives found in green tea, in vascular smooth muscle cells were studied. The proliferative response was determined from the uptake of tritiated thymidine. 2. In the concentration range of 10(-6) to 10(-4) M, catechin, epicatechin, epigallocatechin, epicatechin gallate and epigallocatechin, epigallocatechin gallate, concentration-dependently inhibited the proliferative response stimulated by serum in rabbit cultured vascular smooth muscle cells. Catechin and epicatechin were less effective in inhibiting the serum-stimulated smooth muscle cell proliferation, indicating that the galloyl group may be important for full inhibitory activity. 3. Epigallocatechin (EGC) inhibited the proliferative responses in different cells including rat aortic smooth muscle cells (A7r5 cells), rabbit cultured aortic smooth muscle cells, human coronary artery smooth muscle cells, and human CEM lymphocytes in a concentration-dependent manner. The possible mechanisms of the antiproliferative effect of EGC were further studied in A7r5 cells. 4. The membranous protein tyrosine kinase activity stimulated by serum in A7r5 cells was significantly reduced by 10(-5) M EGC. In contrast, the cytosolic protein kinase C activity stimulated by phorbol ester was unaffected by directly incubating with EGC (10(-6)-10(-4) M). 5. We also performed Western blot analysis using the anti-phosphotyrosine monoclonal antibody PY20. EGC (10(-5) M) reduced the levels of tyrosine phosphorylated proteins with different molecular weights, indicating that EGC may inhibit the protein tyrosine kinase activity or stimulate the protein phosphatase activity. 6. Reverse transcription-polymerase chain reaction analysis of c-fos, c-jun and c-myc mRNA levels demonstrated that c-jun mRNA level after serum-stimulation was significantly reduced by 10(-5) M EGC. However, the reduction of c-fos and c-myc mRNA levels by 10(-5) M EGC did not achieve significance. 7. Western blot analysis using the antibody against JNK (c-jun N-terminal kinase) and ERK (extracellular signal-regulated kinase) demonstrated that the level of phosphorylated JNK1, but not phosphorylated ERK1 and ERK2, was reduced by 10(-5) M EGC. Direct measurement of kinase activity by immune complex kinase assay confirmed that JNK1 activity was inhibited by EGC treatment. These results demonstrate that EGC preferentially reduced the activation of JNK/SAPK (stress-activated protein kinase) signal transduction pathway. 8. It is suggested that the antiproliferative effect of epigallocatechin on vascular smooth muscle cells may partly be mediated through inhibition of protein tyrosine kinase activity, reducing c-jun mRNA expression and inhibiting JNK1 activation. Tea catechins may be useful as a template for the development of drugs to prevent the pathological changes of atherosclerosis and post-angioplasty restenosis.
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MESH Headings
- Animals
- Calcium-Calmodulin-Dependent Protein Kinases/metabolism
- Catechin/analogs & derivatives
- Cell Division/drug effects
- Cells, Cultured
- Enzyme Inhibitors/pharmacology
- Flavonoids/pharmacology
- Gene Expression Regulation/drug effects
- Genes, fos
- Genes, jun
- Genes, myc
- Humans
- JNK Mitogen-Activated Protein Kinases
- Mitogen-Activated Protein Kinases
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Phosphorylation
- Protein Kinase C/antagonists & inhibitors
- Protein Kinase C/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rabbits
- Rats
- Reverse Transcriptase Polymerase Chain Reaction
- Signal Transduction/drug effects
- Tea
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Affiliation(s)
- L H Lu
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei
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Lu LH, Lee YT, Chen HW, Chiang LY, Huang HC. The possible mechanisms of the antiproliferative effect of fullerenol, polyhydroxylated C60, on vascular smooth muscle cells. Br J Pharmacol 1998; 123:1097-102. [PMID: 9559892 PMCID: PMC1565274 DOI: 10.1038/sj.bjp.0701722] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [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: 02/07/2023] Open
Abstract
1. The possible mechanisms of the antiproliferative effect of polyhydroxylated fullerene (fullerenol), a novel free radical trapper, were studied in rat vascular smooth muscle cells (A7r5 cells) and compared with the effect of ascorbic acid. 2. Fullerenol-1 and ascorbic acid inhibited the proliferative responses in a number of cells, including rat aortic smooth muscle cells (A7r5 cells), human coronary artery smooth muscle cells, and human CEM lymphocytes (CEM cells) in a concentration dependent manner. 3. At the concentration range of 10(-6) to 10(-2) M, fullerenol-1 and ascorbic acid concentration-dependently inhibited the proliferative responses stimulated by serum in A7r5 cells. Fullerenol-1 was more potent than ascorbic acid. 4. The production of O2- induced by alloxan, a diabetogenic compound, was reduced by fullerenol-1 (10(-4) M) in the presence of A7r5 cells. 5. The cytosolic protein kinase C activity of A7r5 cells stimulated by phorbol ester was reduced by 10(-3) M fullerenol-1, but not ascorbic acid (10(-4)-10(-2) M) and fullerenol-1 at lower concentrations (10(-6)-10(-4) M). 6. In contrast, the membraneous protein tyrosine kinase activity of A7r5 cells stimulated by foetal calf serum was significantly reduced by fullerenol-1 (10(-6)-10(-3) M) and ascorbic acid (10(-4)-10(-2) M). Again, the inhibitory activity of fullerenol-1 was greater than that of ascorbic acid. 7. Our results demonstrate that fullerenol-1 and ascorbic acid exhibit inhibitory effects on transduction signals in addition to their antioxidative property. It is suggested that the antiproliferative effect of fullerenol-1 on vascular smooth muscle cells may partly be mediated through the inhibition of protein tyrosine kinase.
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Affiliation(s)
- L H Lu
- Department of Pharmacology, College of Medicine, National Taiwan University, Taipei
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Erickson SL, O'Shea KS, Ghaboosi N, Loverro L, Frantz G, Bauer M, Lu LH, Moore MW. ErbB3 is required for normal cerebellar and cardiac development: a comparison with ErbB2-and heregulin-deficient mice. Development 1997; 124:4999-5011. [PMID: 9362461 DOI: 10.1242/dev.124.24.4999] [Citation(s) in RCA: 304] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Heregulins bind directly to ErbB3 and ErbB4 receptors, leading to multiple dimerization possibilities including heterodimerization with the ErbB2 receptor. We have generated ErbB3-, ErbB2- and heregulin-deficient mice to assess their roles in development and differentiation. Heregulin(−/−) and ErbB2(−/−) embryos died on E10.5 due to a lack of cardiac ventricular myocyte differentiation; ErbB3(−/−) embryos survived until E13.5 exhibiting cardiac cushion abnormalities leading to blood reflux through defective valves. In ErbB3(−/−) embryos, the midbrain/hindbrain region was strikingly affected, with little differentiation of the cerebellar plate. Cranial ganglia defects, while present in all three nulls, were less severe in ErbB3(−/−) embryos. The cranial ganglia defects, along with a dramatic reduction in Schwann cells, enteric ganglia and adrenal chromaffin cells, suggests a generalized effect on the neural crest. Numerous organs, including the stomach and pancreas also exhibited anomalous development.
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Affiliation(s)
- S L Erickson
- Department of Molecular Biology, Genetech Inc., South San Francisco, California 94080, USA.
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Abstract
Feinberg et al. proposed that right-hemisphere-damaged stroke patients with anosognosia for hemiplegia (AHP) confabulate seeing stimuli on the left side but those without AHP admit to having inadequate visual information. This study examines the relationship between AHP and confabulation using selective anesthesia of the cerebral hemispheres. Seventeen patients with intractable epilepsy were tested during intracarotid methohexital infusion. For half of the trials, subjects were stimulated on their paretic hand with a material (sandpaper, metal, or cloth), and for the remaining trials they were not stimulated. The subjects were trained to use a pointing response to indicate if they been stimulated and the type of material they had felt. Admission of uncertainty was defined as pointing to a question mark. Confabulation was defined as any material response to a no-touch trial. During anesthesia of either hemisphere, subjects with and without AHP confabulated responses. The AHP and non-AHP groups did not differ in admission of uncertainty. Our results support the postulate that confabulation and AHP are independent disorders, and therefore confabulation cannot fully account for AHP.
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Affiliation(s)
- L H Lu
- Department of Clinical and Health Psychology, University of Florida College of Medicine, Gainesville, USA
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Rabkin R, Brody M, Lu LH, Chan C, Shaheen AM, Gillett N. Expression of the genes encoding the rat renal insulin-like growth factor-I system. J Am Soc Nephrol 1995; 6:1511-8. [PMID: 8589331 DOI: 10.1681/asn.v651511] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [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: 01/31/2023] Open
Abstract
Insulin-like growth factor-I (IGF-I) modulates renal function, growth, and repair. IGF-I produced in the kidney is one component of the intrarenal IGF-I system comprising the IGF-I receptor (IGF-IR) and six IGF-binding proteins (IGFBP). Because of the physiologic importance of IGF-I and its potential therapeutic properties, the renal sites of mRNA synthesis for IGF-I, IGF-IR, and IGFBP-I through IGFBP-5 were characterized in rat kidney by in situ hybridization. Anatomical heterogeneity was prominent. IGF-I mRNA was present in the thick ascending limb of Henle in the outer medulla, whereas IGF-IR mRNA was diffusely present at low levels throughout the kidney. IGFBP-I mRNA was localized to cells within the distal convoluted tubules as well as the thick ascending limb of Henle. IGFBP-2 mRNA was expressed in glomeruli, medullary ray collecting ducts, pelvic smooth muscle and uroepithelium, and the papilla tip; IGFBP-3 mRNA was localized to the cortical interstitium, whereas IGFBP-4 mRNA was expressed in proximal tubules, medullary ray collecting ducts, and glomeruli. IGFBP-5 was strongly positive throughout the medulla with lesser expression in the distal convoluted tubules and glomeruli. This study highlights the complexity of the intrarenal IGF-I system. The striking heterogeneity of IGFBP gene expression suggests that the various IGFBP may have diverse modulatory effects on the action of IGF-I or discrete effects of their own.
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Affiliation(s)
- R Rabkin
- Department of Medicine, Stanford University, School of Medicine, CA, USA
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Liang-min LD, Lu LH, Zhang XM. [Effect of age on hemostasis and plasma level of TXB2 and 6-keto-PGF1 alpha]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1995; 15:652-4. [PMID: 8732148] [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: 02/01/2023]
Abstract
UNLABELLED Hemostasis (HS) in 134 healthy subjects of over 20 years old was investigated. The cases with HS symptom were 45.5%, which increased with age. TXB2, 6-keto-PGF1 alpha and T/K ratio were measured by radioimmuno assay (RIA). RESULTS elevation of TXB2 was more significant in the middle age and old age than in the young group (P < 0.01). But the level of 6-keto-PGF1 alpha in various age group didn't changed significantly; while the ratio between TXB2 and 6-keto-PGF1 alpha was more significant in the aged than in the young person (P < 0.01). The results revealed that there was hypercoagulable tendency with the increase of age, and it was correlated with TXB2 and 6-keto-PGF1 alpha. It is significant in theory and practice to prevent and cure the cardiovascular and cerebrovascular disease as well as HS with the traditional Chinese medicine.
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17
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Liangmin LD, Lu LH, Zhang XM. [Epidemiological study of blood stasis and plasma tissue plasminogen activator and its inhibitor activity in healthy aged]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1994; 14:721-3. [PMID: 7719105] [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: 01/26/2023]
Abstract
According to the blood stasis survey of 77 healthy subjects in presenile geriatric period, in comparison with 35 healthy young people, it was found the 51.79% of healthy subjects had blood stasis. The detectable rate were significantly different among various age groups (P < 0.005), and the rate increase was age-dependent. Chromogenic peptide substrate analytical method was used to detect plasma tissue plasminogen activator (t-PA), tissue plasminogen activator inhibitor (PAI) activity and ratio of P/t. The result revealed that the activity of plasma t-PA in presenile geriatric period subjects was significantly higher than that of young people (P < 0.01), but the activity of PAI had no difference in various age groups, and the ratio of P/t was markedly decreased. It showed that this was the physiological compensatory reaction of aging organism against hypercoagulability, and it was an effective way to maintain the physiological balance of the aged.
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Abstract
This paper describes a family in which seven members, involving three consecutive generations, suffered from acute myeloid leukemia during the past 16 years. The genetic abnormalities were vertically transmitted in a Mendelian dominant manner without sex linkage. Cytogenetic approaches, such as G-banding karyotypes, micronuclei (MN), chromosome aberrations (CA), fragile sites (Fra), cell cycle time (Tc), sister chromatid exchanges (SCE), silver-staining nucleolar organizer regions (Ag-NOR), and silver-staining acrocentric chromosome satellite association (Ag-AA), were investigated on 19 presently healthy members of the family, compared with 10 normal controls. The results showed that their G-banding chromosome karyotypes were normal, without a single similarly located fragile site being found to be carried commonly by the blood relations, although the rare fragile site frequency in the blood relations group was higher than that in the non-blood relations group or normal controls. On the other hand, SCE and Ag-NOR were lowered in the blood relations. In III-13 and IV-3 of the pedigree, in particular, the prolonged cell cycle time with distinctly abnormal SCE and Ag-NOR might predict a high risk for leukemia. Hence the follow-up of this remarkable family is being continued.
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Affiliation(s)
- L Z He
- Fujian Institute of Hematology, Fuzhou, China
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19
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Liang YY, Ye YS, Zhuo GS, Lu LH. A study on a family with high incidence of leukemia. Chin Med J (Engl) 1992; 105:839-43. [PMID: 1291202] [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] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
A family with a high incidence of leukemia was investigated and followed up for 10 years. Up to now, 7 of 48 members in this family had acute nonlymphocytic leukemia. Chromosomal aberration was found in 3 healthy members, 2 of whom were found to have 47, XX, +5, -8, +Mar, del (7) (q22-qter) and 45, XO, -Y chromosomes and developed this disease 5 and 7 years later respectively. Pedigree analysis suggested that the hereditary defect in the family should rest on the maternal lineage. It is considered that hereditary factors play an important part in the pathogenesis of leukemia in the family.
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Affiliation(s)
- Y Y Liang
- Fujian Institute of Hematology, Union Hospital, Fujian Medical College, Fuzhou
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20
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Chen YZ, Lu LH, Huang MQ. [Biphenotypic acute leukemia. Clinical, morphological, cytochemical and immunophenotypic studies]. Zhonghua Nei Ke Za Zhi 1991; 30:678-81, 729. [PMID: 1726144] [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: 12/28/2022]
Abstract
The blast cells from 2 cases of acute leukemic patients classified as M1 type by FAB criterion simultaneously expressed lymphoid markers such as SmIgG, CD19, CD20, DR, PAS in case 1 and CD9, CD10, DR, PAS in case 2. The blast cells of these two cases also expressed CD38 antigen. The data on phenotype and cytochemistry in these two cases fulfil the criteria of biphenotypic acute leukemia proposed by Dr. Gale. The problems in diagnosis, treatment and prognosis of this kind of mixed acute leukemia were discussed.
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MESH Headings
- ADP-ribosyl Cyclase
- ADP-ribosyl Cyclase 1
- Adult
- Antigens, CD/analysis
- Antigens, CD20
- Antigens, Differentiation/analysis
- Antigens, Differentiation, B-Lymphocyte/analysis
- Antigens, Neoplasm/analysis
- Humans
- Immunophenotyping
- Leukemia, Biphenotypic, Acute/diagnosis
- Leukemia, Biphenotypic, Acute/immunology
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/immunology
- Male
- Membrane Glycoproteins
- Neprilysin
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21
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Chen YZ, Lu LH. [Studies on the levels of plasma and platelet beta-thromboglobulin in thrombocytopenia]. Zhonghua Yi Xue Za Zhi 1988; 68:307-9, 22. [PMID: 2976301] [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: 01/03/2023]
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22
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He LZ, Lu LH. Hypercoagulable state and hemorrhage in acute leukemias. Chin Med J (Engl) 1988; 101:448-53. [PMID: 3146479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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23
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Han ZC, Lu LH, Zhang XM, Chen ZZ. [Clinical observation on the changes in plasma cyclic nucleotides in patients with leukemia before and after treatment and their relation to cell-mediated immunity]. Zhonghua Zhong Liu Za Zhi 1986; 8:196-8. [PMID: 3017662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
UNLABELLED Level of plasma cyclic nucleotides was determined in 47 normal subjects and 63 patients with leukemia. Follow-up was carried out in 20 of these patients. The relation between the level of cyclic nucleotides and cell-mediated immunity was studied. THE RESULTS There was no significant difference in cyclic adenosine monophosphate (cAMP) between the normal subjects and leukemic patients, whereas cyclic guanosine monophosphate (cGMP) level was markedly elevated and cAMP/cGMP ratio was obviously reduced in the untreated and unrelieved patients. There was no significant difference in the various types of leukemia. In patients with complete remission (CR) after treatment, their cyclic nucleotides were similar to those in normal subjects, but they remained abnormal in patients without clinical remission after treatment. In CR patients treated regularly for half a year, the cGMP level when first diagnosed was lower than that of patients who died soon or were unrelieved. Plasma cGMP level was negatively correlated to E-rosette forming cell (E-RFC) and cAMP/cGMP ratio was positively correlated to E-RFC. These results suggest that the plasma cGMP be used as additional parameter to monitor the treatment response and prognosis. Reduced E-RFC in leukemia may be related to the elevated cGMP and/or lowered cAMP/cGMP ratio.
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24
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Lu LH, Ye YS, Han ZC. [A study on the etiology and clinical significance of reactive plasmacytosis]. Zhonghua Nei Ke Za Zhi 1986; 25:90-3, 126-7. [PMID: 3792130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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25
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Lu LH. [Harringtonine in the treatment of polycythemia vera--analysis of 12 cases]. Zhonghua Nei Ke Za Zhi 1984; 23:413-5, 462. [PMID: 6518868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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26
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E TS, Yang SS, Lu LH, Tsui CF, Yu CC, Chang WP, Zao SC, Liu CJ. [Criteria of bacteria count in "Emission Standard of Polluted Water from Hospital"--confirmation tests for the total number of E. coli group]. Zhonghua Yu Fang Yi Xue Za Zhi 1983; 17:339-41. [PMID: 6373193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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27
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Lu LH, Lin SP, Liang YY, Song TY, Li LY. Harringtonine in treatment of polycythemia vera. Chin Med J (Engl) 1983; 96:533-5. [PMID: 6418454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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28
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Lu LH. [Clinical observation of the therapeutic effect in 19 cases of acute nonlymphocytic leukemia with combined Chinese traditional and western medicine (author's transl)]. Zhonghua Nei Ke Za Zhi 1981; 20:732-4. [PMID: 7343215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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29
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Lu LH. [A discussion on the etiology and clinical significance of hyperfibrinogenemia (author's transl)]. Zhonghua Nei Ke Za Zhi 1981; 20:456-8. [PMID: 7338077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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30
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Lu LH. [The clinical significance of bleeding in acute leukemia and a discussion on its causative factors (author's transl)]. Zhonghua Nei Ke Za Zhi 1981; 20:201-4. [PMID: 7307742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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31
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Lu LH. [The study of the pathogenesis and clinical significance of increase of circulating anticoagulants; clinical analysis of 42 cases (author's transl)]. Zhonghua Nei Ke Za Zhi 1980; 19:323-6. [PMID: 7227063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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32
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Han CS, Chou PH, Lu CC, Lu LH, Yang TH, Jen MF. The role of central 5-hydroxytryptamine in acupuncture analgesia. Sci Sin 1979; 22:91-104. [PMID: 312529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The role played by central 5-hydroxytryptamine (5-HT) in acupuncture analgesia (AA) has been studied in rats with the tail-flick response as the antinociceptive test. The analgesic effect of acupuncture can be enhanced or lowered by the increment or the decrement of the 5-HT level in the CNS. Furthermore, the turnover rate of 5-HT in the CNS has been found to be greatly facilitated during the period of acupuncture. The results imply that 5-HT in the CNS may be one of the most important neurochemical agents mediating AA.
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