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At least 289 records · Page 16Linked to original sources
PubMed1998

[Phytochemical evaluation of essential oils, medicinal plants and their preparations].

A surway is presented on the authors' work in the field of volatile oil research. The gas chromatographic method previously used for analysis of essential oils was transformed to capillary gas chromatographic conditions. The method is also suitable for separation of compound-pairs frequently occurring in essential oils (peppermint, rosemary, lavender, sage, clary sage, thyme oils). Beside the gas chromatographic analysis of essential oils, which was necessary for their standardization and qualification, the influence of different extraction methods and some biological facts e.g. the ontogenesis on the change of essential oil composition are also discussed. It has been established that the water steam distillation from acidic medium can be more advantageous than the traditional one, if the volatile terpene derivatives were bound in form of glycosides or dimeric quajazolide lactons were present in plant (oregano, Sideritis, wormwood oils). Comparing the composition of essential oil obtained by water steam distillation and supercritical fluid extraction (SFE) it was found that the SFE fractions are richer in ester constituents because the possibility of hydrolysis is reduced, and the oils are more valuable than the classic oils. On the other hand, when the transformation processes are important (chamomile), the distillation is the better method. The change of essential oil composition of Ocimum basilicum L. and Anthriscus cerefolium L. was also studied during the vegetation period. It has been established that in budding and early flowering stages the basil oil was rich in monoterpenes; the quantity of sesquiterpenes and phenylpropane derivatives increased only in later stadiums. Finally the extraction and analytical processes are discussed which are used for standardization of complex plant preparations which contained essential oil as active agent and represented various medicinal forms.

Chamomile↗
PubMed2006

Art therapy improves coping resources: a randomized, controlled study among women with breast cancer.

OBJECTIVE: Women with breast cancer suffer from considerable stress related to the diagnosis, surgery, and medical treatment. It is important to develop strategies to strengthen coping resources among these women. Research in art therapy has shown outcomes such as an increase in self-esteem and cohesion, significant improvement in global health, and a decrease in anxiety and depression. The aim of the present article was to describe the effects of an art therapy intervention program on coping resources in women with primary breast cancer. METHOD: In this article, we report some of the results from a study including 41 women, aged 37-69 years old, with nonmetastatic primary breast cancer, referred to the Department of Oncology at Umeå University Hospital in Sweden for postoperative radiotherapy. The women represented various socioeconomic backgrounds. They were randomized to a study group (n = 20) with individual art therapy for 1 h/week during postoperative radiotherapy or to a control group (n = 21). The article focuses on changes in coping resources, as measured by the Coping Resources Inventory (CRI) before and 2 and 6 months after the start of radiotherapy. The study protocol was approved by the Umeå University Ethical Committee at the Medical Faculty (archive number 99-386). RESULTS: There was an overall increase in coping resources among women with breast cancer after taking part in the art therapy intervention. Significant differences were seen between the study and control groups in the social domain on the second and third occasions. Significant differences were also observed in the total score on the second occasion. SIGNIFICANCE OF RESULTS: This study shows that individual art therapy provided by a trained art therapist in a clinical setting can give beneficial support to women with primary breast cancer undergoing radiotherapy, as it can improve their coping resources.

Adaptation, Psychological↗
PubMed1978

Post-transfusion purpura treated with plasma exchange by haemonetics cell separator. A case report.

A case of post-transfusion purpura in a 61-year-old, multiparous female with a platelet alloantibody (anti-Zwa) in her serum is reported. The patient was successfully treated with plasma exchange by means of a Haemonetics 30 cell separator and corticosteroids. Compared with other therapeutic measures, plasma exchange seems to shorten the duration of thrombocytopenia. Major surgery was possible in our patient within ten days of development of the syndrome.

Appendectomy↗
PubMed1978

Cell-mediated immunity of Yersinia enterocolitica serotype 3 in patients with thyroid diseases.

The cellular immunity to Yersinia enterocolitica serotype 3 and crude human thyroid extract in 64 patients with thyroid diseases and 25 controls was studied by the leucocyte migration test. In the patient group as a whole and in patients with Graves' disease and nontoxic diffuse goitre a significantly reduced leucocyte migration towards Yersinia was found when compared with the controls. In controls the migration index was not related to the presence or titre of circulating yersinia antibodies, whereas the migration index of patients with yersinia antibodies was lower than the migration index of patients without yersinia antibodies as well as that of the controls. The leucocyte migration inhibition in two patients with recent yersinosis was normal during the recovery phase. In the presence of thyroid extract leucocyte migration inhibition differed only significantly in Graves' disease. However, a significantly positive correlation between inhibition of migration by thyroid extract and by Yersinia was found, while no correlation could be demonstrated in the controls. The cell-mediated immunity towards Yersinia in thyroid diseases thus demonstrated adds further evidence to the association between Yersinia and thyroid disease.

Adolescent↗
PubMed1998

Degradation of phthalate and Di-(2-Ethylhexyl)phthalate by indigenous and inoculated microorganisms in sludge-amended soil

The metabolism of phthalic acid (PA) and di-(2-ethylhexyl)phthalate (DEHP) in sludge-amended agricultural soil was studied with radiotracer techniques. The initial rates of metabolism of PA and DEHP (4.1 nmol/g [dry weight]) were estimated to be 731.8 and 25.6 pmol/g (dry weight) per day, respectively. Indigenous microorganisms assimilated 28 and 17% of the carbon in [14C]PA and [14C]DEHP, respectively, into microbial biomass. The rates of DEHP metabolism were much greater in sludge assays without soil than in assays with sludge-amended soil. Mineralization of [14C]DEHP to 14CO2 increased fourfold after inoculation of sludge and soil samples with DEHP-degrading strain SDE 2. The elevated mineralization potential was maintained for more than 27 days. Experiments performed with strain SDE 2 suggested that the bioavailability and mineralization of DEHP decreased substantially in the presence of soil and sludge components. The microorganisms metabolizing PA and DEHP in sludge and sludge-amended soil were characterized by substrate-specific radiolabelling, followed by analysis of 14C-labelled phospholipid ester-linked fatty acids (14C-PLFAs). This assay provided a radioactive fingerprint of the organisms actively metabolizing [14C]PA and [14C]DEHP. The 14C-PLFA fingerprints showed that organisms with different PLFA compositions metabolized PA and DEHP in sludge-amended soil. In contrast, microorganisms with comparable 14C-PLFA fingerprints were found to dominate DEHP metabolism in sludge and sludge-amended soil. Our results suggested that indigenous sludge microorganisms dominated DEHP degradation in sludge-amended soil. Mineralization of DEHP and PA followed complex kinetics that could not be described by simple first-order equations. The initial mineralization activity was described by an exponential function; this was followed by a second phase that was described best by a fractional power function. In the initial phase, the half times for PA and DEHP in sludge-amended soil were 2 and 58 days, respectively. In the late phase of incubation, the apparent half times for PA and DEHP increased to 15 and 147 days, respectively. In the second phase (after more than 28 days), the half time for DEHP was 2.9 times longer in sludge-amended soil assays than in sludge assays without soil. Experiments with radiolabelled DEHP degraders suggested that a significant fraction of the 14CO2 produced in long-term degradation assays may have originated from turnover of labelled microbial biomass rather than mineralization of [14C]PA or [14C]DEHP. It was estimated that a significant amount of DEHP with poor biodegradability and extractability remains in sludge-amended soil for extended periods of time despite the presence of microorganisms capable of degrading the compound (e.g., more than 40% of the DEHP added is not mineralized after 1 year).

Journal Article↗