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| 2. |
- Collen, J, et al.
(författare)
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Farming and physiology of the red algae Eucheuma: Growing commercial importance in East Africa
- 1995
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Ingår i: AMBIO. - : ROYAL SWEDISH ACAD SCIENCES. - 0044-7447. ; 24:7-8, s. 497-501
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Red marine macroalgae of the genus Eucheuma were introduced from the Philippines to Zanzibar in 1989. Their cultivation is of growing importance, especially on the islands of Zanzibar and Pemba. The algae are cultivated for the production of carrageenan,
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| 3. |
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| 4. |
- Abrahamsson, K, et al.
(författare)
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Marine algae - a source of trichloroethylene and perchloroethylene
- 1995
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Ingår i: Limnology and Oceanography. - 0024-3590 .- 1939-5590. ; 40:7, s. 1321-1326
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Tidskriftsartikel (refereegranskat)abstract
- Our results show the natural production of two olefins, trichloroethylene and perchloroethylene, by various marine macroalgae and a microalga. We found significant difference in the ability of the algae to produce these compounds. The production rates for trichloroethylenevaried between 0.022 and 3,400 ng g-l fresh wt (FW)h-l and were generally higher than those for perchloroethylene(0.0026-8.2 ng g-l FW h-l). The two subtropicalalgae, Asparagopsis taxiformis and Falkenbergia hillebrandii,showed the highest formation rates. One axenicmarine red microalga, Porphyridium purpureum, was alsotested and it could also produce trichloroethylene and perchloroethylene.The measured rates suggest that the emissionof trichloroethylene and perchloroethylene from theoceans to the atmosphere may be of such a magnitude thatit cannot be neglected in the global atmospheric chlorinebudget.
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| 5. |
- Abrahamsson, Kate, 1959, et al.
(författare)
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Transient reduction of human left ventricular mass in carnitine depletion induced by antibiotics containing pivalic acid.
- 1995
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Ingår i: British heart journal. - : BMJ. - 0007-0769. ; 74:6, s. 656-9
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Tidskriftsartikel (refereegranskat)abstract
- To study the effect of induced carnitine depletion on myocardial structure and function.7 healthy adult volunteers given 1200 mg pivmecillinam per day for 7-8 weeks were studied by echocardiography before and after 7-8 weeks of treatment and a 15 months follow up after the treatment period.Teaching hospital.Carnitine concentration in serum, urine, and muscle and echocardiographic measurements.After 7-8 weeks of treatment the median free serum carnitine concentration was reduced to 7% and the median total muscle carnitine concentration to 46% of the pretreatment levels. The median diastolic interventricular septum thickness decreased by 14% (mean 26%, P = 0.028) and the median left ventricular mass by 10% (mean 20%, P = 0.018). Fifteen months later these dimensions had increased but not completely returned to pretreatment values.Extended treatment with pivalic acid containing antibiotics causes carnitine depletion which may lead to changes in cardiac structure.
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| 6. |
- Aumüller, G., et al.
(författare)
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Localization of protein gene product 9.5 immunoreactivity in derivatives of the human Wolffian duct and in prostate cancer
- 1999
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Ingår i: Prostate. - 0270-4137. ; 38:4, s. 261-267
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND. Protein gene product 9.5 (PGP 9.5) has been considered to be a neuronal marker, but it is also present in extraneuronal tissues, e.g., the human mammary gland and rat epididymis. Its presence and distribution in the developing and adult male human genital tract have been unknown. METHODS. Immunohistochemical reactions were performed on human embryonic and postnatal specimens of the male genital tract, using commercial monoclonal and polyclonal antibodies. RESULTS. PGP 9.5 immunoreactivity was found in the Wolffian duct of human embryos (55-85 mm crown-rump length). Strong reactivity was observed in mesonephric tubular cells and at the apical rim of Wolffian duct cells. Owing to their PGP 9.5 immunoreactivity, these cells could also be identified on the surface of the embryonic verumontanum, extending from the orifices of the Wolffian duct to a small stretch of the urogenital sinus. There they contrasted sharply against non-Wolffian cells. In the adult human genital tract, PGP 9.5 immunoreactive material was present in the supranuclear portion of some epithelial cells of the epididymal efferent ductules, in isolated cells of the ejaculatory ducts, and in prostate cancer specimens. In the ejaculatory ducts, the PGP 9.5- immunoreactive cells were free of immunoreactivity for semenogelin, the major secretory product of the ejaculatory-vesicular-ampullary complex, and they also lacked chromogranin A-immunoreactivity. In prostate cancer specimens, PGP 9.5 immunoreactivity was never observed in secretory cells (immunoreactive for prostate-specific antigen), but was restricted to neuroendocrine cells, where it occurred either alone or coexpressed with chromogranin A-immunoreactivity. CONCLUSIONS. PGP 9.5-immunoreactivity is prenatally distributed in the Wolffian duct and its derivations; postnatally, it is restricted to a few cells derived from the initial and terminal segment of the Wolffian duct, and to neuroendocrine cells in prostate cancer specimens.
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| 7. |
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| 8. |
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| 9. |
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| 10. |
- Lindstrom, M, et al.
(författare)
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An empirical model for prediction of lake water suspended particulate matter
- 1999
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Ingår i: ECOLOGICAL MODELLING. - : ELSEVIER SCIENCE BV. - 0304-3800. ; 121:2-3, s. 185-198
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- It is of fundamental importance in lake mass balance modelling to distinguish between the dissolved and particulate fractions. To do this, the suspended particulate matter concentration (SPM) is needed as well as measured or modelled values of the partiti
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| 11. |
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| 12. |
- Mtolera, MSP, et al.
(författare)
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Stress-induced production of volatile halogenated organic compounds in Eucheuma denticulatum (Rhodophyta) caused by elevated pH and high light intensities
- 1996
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Ingår i: EUROPEAN JOURNAL OF PHYCOLOGY. - : CAMBRIDGE UNIV PRESS. - 0967-0262. ; 31:1, s. 89-95
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Eucheuma denticulatum has been shown to release bromoform, diiodomethane, dibromochloromethane, perchloroethylene, chloroiodomethane, chloroform, sec-butyl iodide, methyl iodide, methylchloroform, carbon tetrachloride, trichloroethylene and butyl iodide i
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| 13. |
- Pedersen, M, et al.
(författare)
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Production of halocarbons from seaweeds: An oxidative stress reaction?
- 1996
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Ingår i: SCIENTIA MARINA. - : INST CIENCIAS MAR BARCELONA. - 0214-8358. ; 60, s. 257-263
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The production of various volatile halogenated compounds by marine algae was investigated during light and darkness. The amounts of halocarbon formed were measured with a GC-ECD. Production of the volatile halocarbons was also measured with addition of 1
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| 14. |
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| 15. |
- Sundstrom, J, et al.
(författare)
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Halocarbon production and in vivo brominating activity of Eucheuma denticulatum
- 1996
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Ingår i: PHYTOCHEMISTRY. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0031-9422. ; 42:6, s. 1527-1530
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- In vivo brominating activity by Eucheuma denticulatum was compared with its production of volatile halocarbons. The ability of the alga to brominate phenol red showed good correlation (p < 0.05, r = 1.0) to the production of bromoform (CHBr3) estimated by
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| 16. |
- Tornblom, M, et al.
(författare)
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Diagnostic value of percent free prostate-specific antigen: retrospective analysis of a population-based screening study with emphasis on men with PSA levels less than 3.0 ng/mL
- 1999
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Ingår i: Urology. - 1527-9995 .- 0090-4295. ; 53:5, s. 945-950
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: To retrospectively investigate the use of percent free prostate-specific antigen (PSA) compared with total PSA in serum as predictor of prostate cancer in men selected randomly from the general population who underwent biopsy on the basis of abnormal findings on digital rectal examination (DRE) or transrectal ultrasound (TRUS) and/or serum PSA levels greater than 10 ng/mL. METHODS: A single intervention, population-based screening study was undertaken in 1988 and 1989. Of the 2400 men aged 55 to 70 years invited to participate, 1782 men responded and were examined with DRE, TRUS, and PSA testing (Tandem-Hybritech). In 1995, frozen serum samples from 1748 men were analyzed for percent free PSA (Prostatus, Wallac OY). Five-year follow-up data on new cancers in the screened population were obtained from the Swedish Cancer Registry (SCR). RESULTS: Of the 1748 men, 367 underwent TRUS-guided biopsies because of abnormal findings on either DRE or TRUS or serum PSA levels of greater than 10 ng/mL. This resulted in the diagnosis of 64 cases of prostate cancer (3.7%). PSA levels of 3.0 ng/mL or greater were found in 55 (86%) of 64 cancer cases and in 399 (24%) of the 1684 benign cases. Among the 1294 men with PSA less than 3.0 ng/mL, 9 prostate cancers were diagnosed (14% of all prostate cancers). All 9 patients with cancer and with PSA less than 3.0 ng/mL had a percent free PSA of 18% or less. In the group of 1109 patients with PSA less than 3.0 ng/mL and a percent free PSA greater than 18%, 159 biopsies were performed because of abnormal DRE or TRUS. However, no prostate cancer was diagnosed in this category of patients. Five years after the screening intervention, 7 more cases of prostate cancer were clinically diagnosed in the screened population according to the SCR. CONCLUSIONS: The combination of PSA levels less than 3.0 ng/mL and percent free PSA greater than 18% defines a large part of the population at a very low risk of cancer of the prostate both at the time of screening and during the following 5 years. Men in this group may be spared DRE, and longer screening intervals may be considered. However, the risk of having prostate cancer is not negligible in men with PSA less than 3.0 ng/mL and percent free PSA of 18% or less. The results of this study indicate that biopsy should be recommended to men fulfilling these criteria, although these results should be confirmed in larger prospective studies because of the limited number of patients with prostate cancer in the present series.
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