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The location and mechanisms responsible for the carbon sink in northern mid-latitude lands are uncertain. Here, we used an improved estimation method of forest biomass and a 50-year national forest resource inventory in China to estimate changes in the storage of living biomass between 1949 and 1998. Our results suggest that Chinese forests released about(More)
Tyrosine hydroxylase (TH), the first and rate-limiting enzyme in the biosynthesis of catecholamine neurotransmitters, is expressed within central and peripheral catecholaminergic cells. To delineate DNA sequences necessary for tissue-specific expression of the rat TH gene, transgenic mice were produced containing 0.15 kb, 2.4 kb, and 9.0 kb of 5' flanking(More)
The present study investigated the expression and regulation of GnRH and GnRH receptor (GnRHR) messenger RNAs (mRNAs) in human granulosa-luteal cells using reverse transcription-polymerase chain reaction (RT-PCR). Granulosa-luteal cells were aspirated from preovulatory follicles obtained from women undergoing in vitro fertilization. Two sets of primers(More)
We have previously reported that neuropeptide-Y (NPY) stimulates GH and gonadotropin-II (GtH-II) release from perifused pituitary fragments in the goldfish. Since the teleost pituitary is directly innervated by neurosecretory terminals from the brain, we further investigated the possible sites of action of NPY. Both synthetic human NPY and NPY-(18-36), an(More)
Although fast-growing Populus species consume a large amount of water for biomass production, there are considerable variations in water use efficiency (WUE) across different poplar species. To compare differences in growth, WUE and anatomical properties of leaf and xylem and to examine the relationship between photosynthesis/WUE and anatomical properties(More)
Knapp and Smith (1) suggested that inter-annual variability in aboveground net primary production (ANPP) is not related to fluctuations in precipitation, based on analysis of data from 11 Long-Term Ecological Research sites across North America. This finding, if applicable to other regions, is crucial to climate change research, because it may necessitate(More)
Tryptophan hydroxylase (TPH) is the first enzyme in both serotonin and melatonin biosynthesis in neuroendocrine cells of the pineal gland. The lack of immortalized neuroendocrine pineal cell lines has been a major obstacle to the study of the tissue-specific and circadian regulation of TPH gene expression in the pineal gland. Previously, we demonstrated(More)
It has been reported that the miR-106b∼25 cluster, a paralog of the miR-17∼92 cluster, possesses oncogenic activities. However, the precise role of each microRNA (miRNA) in the miR-106b∼25 cluster is not yet known. In this study, we examined the function of miR-93, one of the microRNAs within the miR-106b∼25 cluster, in angiogenesis and tumor formation. We(More)
Neuropeptide Y (NPY) has been recently characterized in the goldfish and the sequence deduced from goldfish brain cDNA clones reveals that goldfish NPY (gNPY) has over 86% identity with human NPY (hNPY) (Blomqvist et al., 1992, Proc. Natl. Acad. Sci. USA 89, 2350-2354). In the present study, we used synthetic gNPY to investigate the role of NPY in the(More)
Herpes simplex virus (HSV) remains a major human pathogen worldwide (25 causing cold sores, eye and genital infections, blindness, encephalitis, and neonatal infections. Most adults have antibodies against the oral form of the virus HSV-1 (9), and a significant number are infected with the genital form, HSV-2. Both serotypes establish lifelong latent(More)