5,148 research outputs found
Ar-40-Ar-39 thermo chronological constraints on the exhumation of ultrahigh-pressure metamorphic rocks in the Sulu terrane of eastern China
No full textNewly elected directors of Lin-Mor Inc.
No full textThe newly elected directors of Lin-Mor Inc. are from the left, Joseph Sloma, district 3, Don Lamale, district 2, and Lyle Hoar, district 1. The men will serve 3-year terms
Differential expression and functional characterization of luteinizing hormone receptor splice variants in human luteal cells : Implications for luteolysis
No full textThe human LH receptor (LHR) plays a key role in luteal function and the establishment of pregnancy through its interaction with the gonadotropins LH and human chorionic gonadotropin. We previously identified four splice variants of the LHR in human luteinized granulosa cells (LGCs) and corpora lutea (CL). Real-time quantitative PCR revealed that expression of the full-length LHR (LHRa) and the most truncated form (LHRd) changed significantly in CL harvested at different stages of the ovarian cycle (P < 0.01, ANOVA). LHRa expression was reduced in the late luteal CL (P<0.05). Conversely, an increase in LHRd expression was observed in the late luteal CL (P<0.01). Chronic manipulation of human chorionic gonadotropin in LGC primary cultures supported the in vivo findings. LHRd encodes a protein lacking the transmembrane and carboxyl terminal domains. COS-7 cells expressing LHRd were unable to produce cAMP in response to LH stimulation. COS-7 cells coexpressing LHRd and LHRa also failed to generate cAMP in response to LH, suggesting that this truncated form has a negative effect on the signaling of LHRa. Immunofluorescence staining ofLGC and COS-7 cells implied that there is a reduction in cell surface expression ofLHRa when LHRd is present. Overall, these results imply expression of LHR splice variants is regulated in the human CL. Furthermore, during functional luteolysis a truncated variant could modulate the cell surface expression and activity of full-length LHR.Peer reviewe
AGE-RELATED CHANGES IN NUTRIENT RESORPTION PATTERNS AND TANNIN CONCENTRATION OF CASUARINA EQUISETIFOLIA PLANTATIONS
No full textYE GF, ZHANG SJ, ZHANG LH, LIN YM, WEI SD, LIAO MM & LIN GH. 2012. Age-related changes in nutrient resorption patterns and tannin concentration of Casuarina equisetifolia plantations. Tannin levels and nutrient resorption of Casuarina equisetifolia at different developmental phases (juvenile, mature and senescent phases) were examined to evaluate possible nutrient conservation strategies under nutrient limitation. Results showed that C. equisetifolia branchlets contained relatively higher contents of total phenolics, extractable condensed tannin, total condensed tannin contents and protein precipitation capacity in juvenile stands compared with those in mature and senescent stands. Nitrogen (N) concentrations in mature branchlets increased with stand development, while phosphorus (P) concentrations showed a decreasing trend. Nitrogen:phosphorus ratios in mature branchlets were above 20 and increased with stand development. Phosphorus resorption efficiencies were significantly higher than N resorption efficiencies, with the highest in mature stands. Tannin level, nutrient concentration and resorption were affected by stand age. Our results indicated that at intraspecific level, C. equisetifolia could adjust its nutrient conservation with stand development.YE GF, ZHANG SJ, ZHANG LH, LIN YM, WEI SD, LIAO MM & LIN GH. 2012. Age-related changes in nutrient resorption patterns and tannin concentration of Casuarina equisetifolia plantations. Tannin levels and nutrient resorption of Casuarina equisetifolia at different developmental phases (juvenile, mature and senescent phases) were examined to evaluate possible nutrient conservation strategies under nutrient limitation. Results showed that C. equisetifolia branchlets contained relatively higher contents of total phenolics, extractable condensed tannin, total condensed tannin contents and protein precipitation capacity in juvenile stands compared with those in mature and senescent stands. Nitrogen (N) concentrations in mature branchlets increased with stand development, while phosphorus (P) concentrations showed a decreasing trend. Nitrogen:phosphorus ratios in mature branchlets were above 20 and increased with stand development. Phosphorus resorption efficiencies were significantly higher than N resorption efficiencies, with the highest in mature stands. Tannin level, nutrient concentration and resorption were affected by stand age. Our results indicated that at intraspecific level, C. equisetifolia could adjust its nutrient conservation with stand development
Heterobifunctional PEG-tethered BMP-2 stimulated bone marrow mesenchymal stromal cells differentiation and osteogenesis.
No full textEstablishment of A Multidrug Resistant (MDR) Colon Carcinoma Cell Line and MDR Tumor Model in BALB/c Mice
No full textMETHICILLIN-RESISTANT STAPHYLOCOCCUS AUREUS BACTEREMIA IN NEONATAL INTENSIVE CARE UNITS: GENOTYPING ANALYSIS AND CASE-CONTROL STUDY
No full textLong term clinical and virologic outcome of primary hepatitis C virus infection in children: A prospective study.
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