[Physical therapy of COPD].
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Breathing Exercises↗
Biomedical subjects
T Miyagawa
Publications and source records attributed to T Miyagawa.
Case-control study with narcoleptic patients and healthy controls who, like the patients, possess both HLA-DRB1*1501 and -DQB1*0602.
In previous studies, we suggested that the tumor necrosis factor (TNF-alpha and its receptor 2 (TNFR2) genes could be associated with the susceptibility to human narcolepsy, and that haplotype carrying DRB1*1502 had a negative association with the disorder. To further evaluate these associations, we herein compared narcoleptic patients with healthy individuals who, like the patients, possessed both DRB1*1501 and DQB1*0602. Results agreed with the negative association of DRB1*1502 and positive association of the TNF-alpha(-857T) and TNFR2-196R combination with the disorder. In addition, a significant association of the TNF-alpha(-857T) homozygote with the disorder and an increase in a rare haplotype carrying DRB1*1501 and TNF-alpha(-857T) in the patients were also observed in the present study.
Alleles↗
Identification of a telomeric boundary of the HLA region with potential for predisposition to human narcolepsy.
We report on a study performed to determine a boundary of the region with the potential to contribute to the predisposition to human narcolepsy (the susceptibility region) in the human leukocyte antigen (HLA) region. We investigated a Japanese narcolepsy family, in which a de novo chromosomal recombination occurred between the HLA-DRB1 and HLA-B genes in the proband. The recombinant chromosome carrying HLA-DRB1*1501 was transmitted to the affected child and grandchild, suggesting that a strong genetic factor(s) predisposing to the disorder was (were) present on the chromosome, and that the recombination breakpoint could be regarded as a boundary to the susceptibility region. To search for the breakpoint, we carried out allele typing at various polymorphic sites, e.g., microsatellite repeat polymorphisms, restriction fragment length polymorphisms, and single-nucleotide polymorphisms in the HLA region, and examined haplotypes with the polymorphic sites in the family members. Haplotype analyses revealed that the recombination breakpoint was present approximately 50 kb to the telomeric side of the palmitoyl-protein thioesterase-2 (PPT2) gene in the HLA class III region. From the gene map of the HLA region, the cyclic AMP response element-binding protein-related protein gene (CREB-RP) appeared to be located at the telomeric end in the 50-kb region. Therefore, the data presented here suggest that the susceptibility region for the disorder in the family is present on the centromeric side of the CREB-RP gene in the recombinant Chromosome 6 carrying HLA-DRB1*1501.
Female↗
Treatment of rat experimental brain tumors by herpes simplex virus thymidine kinase gene-transduced allogeneic tumor cells and ganciclovir.
Transfer of the herpes simplex virus thymidine kinase (HSVtk) gene, followed by administration of ganciclovir (GCV), generates the "bystander effect," in which HSVtk-negative wild-type cells are killed by GCV, as are HSVtk-expressing cells. Our previous study demonstrated that intracranial 9L gliomas could be efficiently treated due to this bystander effect by injecting the 9L glioma cells transduced with the HSVtk gene in the vicinity of the preimplanted wild-type 9L glioma and then administering GCV. For a possible clinical application of the bystander effect-mediated cell killing, we tested HSVtkgene-transduced allogeneic C6 glioma cells (C6tk) instead of syngeneic 9L glioma cells transduced with the HSVtk gene. Fisher rats were implanted intracranially with wild-type 9L glioma cells, subsequently injected with C6tk cells at the same brain coordinate, and thereafter treated with GCV or saline. When the rats were treated with GCV, a significant retardation of tumor growth was observed by serial magnetic resonance imaging, although this growth retardation was less prominent than that observed with 9L glioma cells transduced with the HSVtk gene; consequently, survival was prolonged (P < .01). Tumors that received C6tk cells contained almost no HSVtk-positive cells after treatment with GCV. Rejection of allogeneic tumor cells, although possibly incomplete in the brain, can also contribute to the safety of this therapeutic strategy.
Animals↗
Cryptococcus albidus-induced summer-type hypersensitivity pneumonitis.
We studied summer-type hypersensitivity pneumonitis believed to be induced by Cryptococcus albidus in the home environments of the patients. All patients had antibodies that were reactive to Cryptococcus neoformans and Trichosporon cutaneum in sera and bronchoalveolar lavage (BAL) fluids. Cryptococcus albidus strains were isolated from 62.5% of the patient home environments. Trichosporon cutaneum was found in none of the patient homes. To study local antibody production in the lung, we cultured BAL cells to measure anti-C. neoformans and anti-T. cutaneum antibodies in the culture supernatants by the ELISA method. IgG, IgA, and IgM anti-Cryptococcus and anti-Trichosporon antibodies were found in all culture supernatants. A significant correlation was observed in antibody binding activity between Cryptococcus and Trichosporon antigen. However, the amount of IgA and IgM antibody bound to C. neoformans was significantly higher than was bound to T. cutaneum. Most anti-Cryptococcus and anti-Trichosporon antibody was absorbed by C. albidus. Our results suggest that C. albidus may be an etiologic agent in most of the cases we studied, and that IgA and IgM antibody in BAL fluid may be secreted by plasma cells in the lung.
Adolescent↗
[A complete response persisting for seven months with the use of TS-1 in a patient with paraaortic lymph node metastasis of gastric cancer].
TS-1, a novel oral anticancer agent, was administered to a 68-year-old male patient with a paraaortic lymph node metastasis, 42 x 28 mm in size, of gastric cancer. The patient received four courses of treatment. Each treatment course consisted of a four-week administration followed by two drug-free weeks. The daily dose was 120 mg for the first two courses and 100 mg for the last two. A partial response was obtained after completion of the first course and a complete response was observed after the second. As of February, 2000, eleven months after the first administration, no regrowth of the tumor was observed either radiographically or by tumor marker levels. Adverse effects included stomatitis (grade 1), neutropenia (grade 3) and anemia (grade 1), all of which were temporary and needed no treatment. The patient's QOL improved gradually after the treatment. He is now in a good health and undergoes regular check-ups.
Aged↗
Significant association of a single nucleotide polymorphism in the tumor necrosis factor-alpha (TNF-alpha) gene promoter with human narcolepsy.
Narcolepsy is a sleep disorder in which multiple factors, including environmental and genetic factors, are involved. A genetic factor strongly associated with the disorder has been found in the human leukocyte antigen (HLA) class II region: the haplotype, DRB1*1501-DQB1*0602, predisposes to narcolepsy. No susceptibility genes other than the HLA-haplotype have been found. In this paper, we performed an association study of the tumor necrosis factor-alpha (TNF-alpha) gene located in the HLA class III region with human narcolepsy, in which we examined the known single-nucleotide polymorphisms (SNPs) in the promoter region in 49 narcoleptic patients, who were all positive for DRBI*1501, and 111 healthy control individuals. The results indicated that the frequency of the genotype at position -857 (-857SNP) was significantly different between the patients and controls, and the allele frequencies of 857SNP revealed that the frequency of -857T was significantly increased in the patients as compared with that in the controls (P=0.0068). In addition, haplotypes presumed from HLA-DRB1, -857SNP and HLA-B loci suggested that -857T was mainly associated with DRB1 alleles other than DRB1*1501: the significant increase in frequency of -857T in the patients was not caused by allelic association with DRB1*1501. Therefore, it is conceivable that the TNF-alpha with 857T was associated with narcolepsy independently of the strong association of DRB1*1501 with the disorder. Altogether, the data presented here lead us to propose that TNF-alpha could be a new susceptibility gene in human narcolepsy.
Alleles↗
Imaging herpes virus thymidine kinase gene transfer and expression by positron emission tomography.
We report a series of studies that assess the feasibility and sensitivity of imaging of herpes virus type one thymidine kinase (HSV1-tk) gene transfer and expression with [124I]-5-iodo-2'-fluoro-1-beta-D-arabinofuranosyluracil ([124I]-FIAU) and positron emission tomography (PET) and the ability of [124I]-FIAU-PET imaging to discriminate different levels of HSV1-tk gene expression. Studies were performed in rats bearing multiple s.c. tumors derived from W256 rat carcinoma and RG2 rat glioma cells. In the first set, we tested the sensitivity of [124I]-FIAU-PET imaging to detect low levels of HSV1-tk gene expression after retroviral-mediated gene transfer. HSV1-tk gene transduction of one of preestablished wild-type W256 tumor in each animal was accomplished by direct intratumoral injection of retroviral vector-producer cells (W256-->W256TK* tumors). Tumors produced from W256 and W256TK+ cells served as the negative and positive control in each animal. Highly specific images of [124I]-FIAU-derived radioactivity were obtained in W256TK* tumors (that were transduced in vivo) and in W256TK+ tumors but not in nontransduced wild-type W256 tumors. The level of "specific" incorporated radioactivity in transduced portions of both W256TK* and W256TK+ tumors was relatively constant between 4 and 50 h. In the second set, we tested whether [124I]-FIAU and PET imaging can measure and discriminate between different levels of HSV1-tk gene expression. Multiple s.c. tumors were produced from wild-type RG2 cells and stably transduced RG2TK cell lines that express different levels of HSV1-tk. A highly significant relationship between the level of [124I]-FIAU accumulation [% injected dose/g and incorporation constant (Ki)] and an independent measure of HSV1-tk expression (sensitivity of the transduced tumor cells to ganciclovir, IC50) was demonstrated, and the slope of this relationship was defined as a sensitivity index. We have demonstrated for the first time that highly specific noninvasive images of HSV1-tk expression in experimental animal tumors can be obtained using radiolabeled 2'-fluoro-nucleoside [124I]-FIAU and a clinical PET system. The ability to image the location (distribution) of gene expression and the level of expression over time provides new and useful information for monitoring clinical gene therapy protocols in the future.
Animals↗
Tumor growth modulation by sense and antisense vascular endothelial growth factor gene expression: effects on angiogenesis, vascular permeability, blood volume, blood flow, fluorodeoxyglucose uptake, and proliferation of human melanoma intracerebral xenografts.
Vascular endothelial growth factor (VEGF), also known as vascular permeability factor, has been investigated as a potent mediator of brain tumor angiogenesis and tumor growth. We evaluated the effect of VEGF expression on the pathophysiology of tumor growth in the brain. Human SK-MEL-2 melanoma cells, with minimal VEGF expression, were stably transfected with either sense or antisense mouse VEGF cDNA and used to produce intracerebral xenografts. Vascular permeability, blood volume, blood flow, and tumor fluorodeoxyglucose metabolism were assessed using tissue sampling and quantitative autoradiography. Tumor proliferation was assessed by measuring bromodeoxyuridine labeling indices. Tumor vascular density and morphological status of the blood-brain barrier were evaluated by immunohistochemistry. SK-MEL-2 cells transfected with sense VEGF (V+) expressed large amounts of mouse and human VEGF protein; V+ cells formed well-vascularized, rapidly growing tumors with minimal tumor necrosis. V+ tumors had substantial and significant increases in blood volume, blood flow, vascular permeability, and fluorodeoxyglucose metabolism compared to wild-type and/or V- (antisense VEGF) tumors. VEGF antisense transfected V- expressed no detectable VEGF protein and formed minimally vascularized tumors. V- tumors had a very low initial growth rate with central necrosis; blood volume, blood flow, vascular permeability, and glucose metabolism levels were low compared to wild-type and V+ tumors. A substantial inhibition of intracerebral tumor growth, as well as a decrease in tumor vascularity, blood flow, and vascular permeability may be achieved by down-regulation of endogenous VEGF expression in tumor tissue. VEGF-targeted antiangiogenic gene therapy could be an effective component of a combined strategy to treat VEGF-producing brain tumors.
Animals↗
"Facilitated" amino acid transport is upregulated in brain tumors.
The goal of this study was to determine the magnitude of "facilitated" amino acid transport across tumor and brain capillaries and to evaluate whether amino acid transporter expression is "upregulated" in tumor vessels compared to capillaries in contralateral brain tissue. Aminocyclopentane carboxylic acid (ACPC), a non-metabolized [14C]-labeled amino acid, and a reference molecule for passive vascular permeability, [67Ga]-gallium-diethylenetriaminepentaacetic acid (Ga-DTPA), were used in these studies. Two experimental rat gliomas were studied (C6 and RG2). Brain tissue was rapidly processed for double label quantitative autoradiography 10 minutes after intravenous injection of ACPC and Ga-DTPA. Parametric images of blood-to-brain transport (K1ACPC and K1Ga-DTPA, microL/min/g) produced from the autoradiograms and the histology were obtained from the same tissue section. These three images were registered in an image array processor; regions of interest in tumor and contralateral brain were defined on morphologic criteria (histology) and were transferred to the autoradiographic images to obtain mean values. The facilitated component of ACPC transport (deltaK1ACPC) was calculated from the K1ACPC and K1Ga-DTPA data, and paired comparisons between tumor and contralateral brain were performed. ACPC flux, K1ACPC, across normal brain capillaries (22.6 +/- 8.1 microL/g/min) was >200-fold greater than that of Ga-DTPA (0.09 +/- 0.04 microL/g/min), and this difference was largely (approximately 90%) due to facilitated ACPC transport. Substantially higher K1ACPC values compared to corresponding K1DTPA values were also measured in C6 and RG2 gliomas. The deltaK1ACPC values for C6 glioma were more than twice that of contralateral brain cortex. K1ACPC and deltaK1ACPC values for RG2 gliomas was not significantly higher than that of contralateral cortex, although a approximately 2-fold difference in facilitated transport is obtained after normalization for differences in capillary surface area between RG2 tumors and contralateral cortex. K1ACPC, deltaK1ACPC, and K DTPA were directly related to tumor cell density, were higher in regions of "impending" necrosis, and the tumor/contralateral brain ACPC radio-activity ratios (0 to 10 minutes) were very similar to that obtained with 0 to 60 minutes experiments. These results indicate that facilitated transport of ACPC is upregulated across C6 and RG2 glioma capillaries, and that tumors can induce upregulation of amino acid transporter expression in their supporting vasculature. They also suggest that early imaging (e.g., 0 to 20 minutes) with radiolabeled amino acids in a clinical setting may be optimal for defining brain tumors.
Amino Acids↗
Role of glutamate receptors and voltage-dependent calcium and sodium channels in the extracellular glutamate/aspartate accumulation and subsequent neuronal injury induced by oxygen/glucose deprivation in cultured hippocampal neurons.
Ischemia is believed to induce neuronal damage by causing a sustained increase in the level of extracellular excitatory amino acids. In our study, we have examined the relationship between oxygen/glucose deprivation-induced changes in extracellular glutamate/aspartate level and subsequent neuronal injury by pharmacological manipulation of glutamate receptors and calcium and sodium channels. Cultured hippocampal neurons were exposed to combined deprivation of oxygen/glucose for 40 to 50 min. These cultures developed acute neuronal swelling and widespread neuronal degeneration over the next 20 hr. The extracellular levels of glutamate and aspartate at the end of the oxygen/glucose deprivation period were measured by high-performance liquid chromatography, and neuronal injury was assessed by lactate dehydrogenase efflux assay after subsequent aerobic incubation of the cells in normal medium for 20 hr. Both N-methyl-D-aspartate and non- N-methyl-D-aspartate receptor antagonists attenuated the extracellular level of glutamate/aspartate and the neuronal injury. L-type, N-type and P-type calcium channel blockers each significantly attenuated the neuronal injury, although the increase in the extracellular glutamate/aspartate was not significantly inhibited by any subtype-specific calcium channel blocker alone. A combination of calcium channel blockers of the three subtypes showed the most prominent neuroprotective effect and inhibited glutamate release. The sodium channel blocker tetrodotoxin also attenuated both glutamate efflux and neuronal injury. These observations suggest that the overactivation of glutamate receptors, calcium channels and sodium channels leads to excitotoxic neuronal injury through enhancing glutamate efflux into the extracellular space under the condition of oxygen/glucose deprivation.
Animals↗
Imaging experimental brain tumors with 1-aminocyclopentane carboxylic acid and alpha-aminoisobutyric acid: comparison to fluorodeoxyglucose and diethylenetriaminepentaacetic acid in morphologically defined tumor regions.
The goal of this study was to evaluate the differences and define the advantages of imaging experimental brain tumors in rats with two nonmetabolized amino acids, 1-aminocyclopentane carboxylic (ACPC) acid and alpha-aminoisobutyric (AIB) acid compared with imaging with fluorodeoxyglucose (FDG) or the gallium-diethylenetriaminepentaacetic acid chelate (Ga-DTPA). 1-aminocyclopentane carboxylic acid, AIB, and FDG autoradiograms were obtained 60 minutes after intravenous injection to simulate positron emission tomography (PET) imaging, whereas the Ga-DTPA autoradiograms were obtained 5 or 10 minutes after injection to simulate gadolinium (Gd)-DTPA-enhanced magnetic resonance (MR) images. Three experimental tumors were studied (C6, RG2, and Walker 256) to provide a range of tumor types. Triple-label quantitative autoradiography was performed, and parametric images of the apparent distribution volume (Va, mL/g) for ACPC or AIB, relative glucose metabolism (R, micromol/100 g/min), vascular permeability to Ga-DTPA (K1, microL/min/g), and histology were obtained from the same tissue section. The four images were registered in an image array processor, and regions of interest in tumor and contralateral brain were defined on morphologic criteria (histology) and were transferred to the autoradiographic images. A comparative analysis of all measured values was performed. The location and morphologic characteristics of the tumor had an effect on the images and measurements of Va, R, and K1. Meningeal extensions of all three tumors consistently had the highest amino acid uptake (Va) and vascular permeability (K1) values, and subcortical portions of the tumors usually had the lowest values. Va and R (FDG) values generally were higher in tumor regions with high-cell density and lower in regions with low-cell density. Tumor areas identified as "impending" necrosis on morphologic criteria consistently had high R values, but little or no change in Va or K1. Tumor necrosis was seen consistently only in the larger Walker 256 tumors; low values of R and Va for AIB (less for ACPC) were measured in the necrotic-appearing regions, whereas K1 was not different from the mean tumor value. The highest correlations were observed between vascular permeability (K1 for Ga-DTPA) and Va for AIB in all three tumors; little or no correlation between vascular permeability and R was observed. The advantages of ACPC and AIB imaging were most convincingly demonstrated in C6 gliomas and in Walker 256 tumors. 1-aminocyclopentane was substantially better than FDG or Ga-DTPA for identifying tumor infiltration of adjacent brain tissue beyond the macroscopic border of the tumor; ACPC also may be useful for identifying low-grade tumors with an intact blood-brain barrier. Contrast-enhancing regions of the tumors were visualized more clearly with AIB than with FDG or Ga-DTPA; viable and necrotic-appearing tumor regions could be distinguished more readily with AIB than with FDG. [11C]-labeled ACPC and AIB are likely to have similar advantages for imaging human brain tumors with PET.
Aminoisobutyric Acids↗
[Complete tumor regression obtained by chemoendocrine therapy including toremifene in two cases of pulmonary metastasis of breast cancer with a history of tamoxifen treatment].
Two cases of recurrent breast cancer, for which combined therapy using toremifene and oral chemotherapeutic agents were effective, are reported. In case 1, high-dose toremifene (120 mg/day) and 5'-DFUR were administered to a forty-seven-year-old woman with lung metastasis of estrogen-receptor positive breast cancer, who had been previously treated with polychemotherapy and tamoxifen. A complete response was obtained after six months of treatment and this condition has remained for longer than one year. In case 2, a fifty-year-old woman developed liver and lung matastasis of breast cancer with increased tumor marker levels. Forty mg/day of toremifene and oral cyclophosphamide was started and transarterial embolization of the hepatic artery using lipiodol, adriamycin and mitomycin C was performed. Both hepatic and pulmonary metastasis disappeared, and the tumor maker level was normalized one month later. No regrowth of the tumors has been observed for more than six months. The chemosensitizing effect of toremifene might be responsible for the favorable effects on these matastases of breast cancer.
Adenocarcinoma↗
Interleukin-12 activates human gamma delta T cells: synergistic effect of tumor necrosis factor-alpha.
gammadelta T cell populations are known to expand in response to intracellular bacterial infectious agents regardless of previous priming. We have shown previously that soluble factor(s) produced by Mycobacterium-stimulated monocytes activate cord blood gammadelta T cells to proliferate. In this study, we investigated whether cytokines produced by monocytes are responsible for gammadelta T cell activation in vitro: interleukin (IL)-1beta, IL-6, IL-8, IL-12, tumor necrosis factor (TNF)-alpha and granulocyte/macrophage colony-stimulating factor were examined. Recombinant human IL-12 stimulated gammadelta T cells, but not alphabeta T cells in peripheral blood mononuclear cells, to express CD25 on their surfaces, and to expand in number in vitro. IL-12-primed gammadelta T cell numbers increased to a greater extent in the culture to which exogenous IL-2 (5 U/ml) was added. Anti-TNF-alpha monoclonal antibody inhibited IL-12-induced up-regulation of CD25 on gammadelta T cells, suggesting that endogenous TNF-alpha may play a role in IL-12-induced activation of gammadelta T cells. Recombinant TNF-alpha synergistically augmented IL-12-induced activation of gammadelta T cells. Furthermore, IL-12 up-regulated TNF receptors on gammadelta T cells in vitro: TNF-alpha binding to its receptor induced CD25 expression on the gammadelta T cells in an autocrine or paracrine fashion, or perhaps both. It also became evident that both IL-12 and TNF-alpha were produced by mycobacterial lysate-stimulated monocytes. Taken together, these results suggest that upon confrontation with mycobacterial organisms, gammadelta T cells can be quickly and antigen-nonspecifically activated by soluble factors including IL-12 and TNF-alpha, both of which are produced by mononuclear phagocytes in response to mycobacterial organisms.
Adult↗
Specification of posterior midbrain region in zebrafish neuroepithelium.
BACKGROUND: The developing vertebrate nervous system displays a pronounced anterior-posterior (A-P) pattern, but the mechanism that generates this pattern is poorly understood. We examined through cell-transplantation experiments, when and how the cells in the zebrafish posterior midbrain acquire regional specificity along the A-P axis as shown by pax[b] gene expression. RESULTS: Labelled donor cells from the presumptive midbrain region at various stages were transplanted into more anterior part of unlabelled host embryos of the same developmental stage, and the expression of pax[b] in the donor cells were examined by in situ hybridization. The results indicated that, in the cells from the presumptive midbrain region, expression of pax[b] was determined as early as the 55%-epiboly (6.5 h, early gastrulation) when the underlying hypoblastic layer reached the presumptive midbrain region. We also found that when transplanted heterotopically, anterior, but not posterior, hypoblast cells induced expression of pax[b] in the overlying ectoderm. CONCLUSIONS: Expression of a midbrain specific gene is determined during early gastrulation and the hypoblastic layer plays an important role in this determination process.
Animals↗
Mutated yeast heat shock transcription factor exhibits elevated basal transcriptional activation and confers metal resistance.
Cadmium-resistant Saccharomyces cerevisiae strain 301N exhibits high basal as well as cadmium-induced expression of the CUP1 metallothionein gene. Since regulation of CUP1 is usually restricted to copper ions, our goal was to identify the factor responsible for the high metallothionein levels in strain 301N. The gene responsible for the observed phenotype is a spontaneously mutated heat shock transcription factor gene (HSF1). A double, semidominant HSF1 mutant with substitutions at codons 206 and 256 within the DNA-binding domain of the heat shock factor (HSF) confers two phenotypes. The first phenotype is elevated transcriptional activity of the HSF mutant (HSF301), which results in constitutive thermotolerance. A second HSF301 phenotype is enhanced binding affinity for the heat shock element (HSE) within the CUP1 5'-sequences, resulting in high basal transcription of metallothionein. The CUP1 HSE is a minimal heat shock element containing only two perfectly spaced inverted repeats of the basic nGAAn block. Cells containing HSF301 are resistant to cadmium salts. The single R206S mutation is responsible for the high affinity binding to the CUP1 HSE. In addition, the R206S HSF substitution exhibits constitutive transcriptional activation from a consensus HSE (HSE2). The F256Y substitution in HSF attenuates the effects of R206S on the consensus HSE2, but not on the CUP1 HSE.
Base Sequence↗
Two types of calcium channels sensitive to omega-agatoxin- TK in cultured rat hippocampal neurones.
We characterized the electrophysiological properties of calcium channels in cultured rat hippocampal neurones using omega-agatoxin-TK (omega-Aga-TK) and compared them with those of the P-type channel and the BI (alpha 1A) channel which resembles the Q-type channel. Two types of omega-Aga-TK-sensitive calcium channels were detected in hippocampal neurones. The first type showed slow inactivation, high sensitivity to omega-Aga-TK and low reversibility from omega-Aga-TK-induced block, resembling the P-type channel. The second type showed fast inactivation, low sensitivity to omega-Aga-TK and high reversibility from omega-Aga-TK-induced block. These results suggest that the second type of calcium channel (Q-type-like) plays a prominent role in the hippocampal synaptic transmission.
Agatoxins↗
New point mutation (R301X) of the alpha-galactosidase A gene causing Fabry disease.
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Base Sequence↗