Reaction of Partially Methylated Polygalacturonic Acid with Iron(III) Chloride and Characterization of a New Mixed Chloride-Polygalacturonate Complex.

We have described a new route for the preparation of partially methylated polygalacturonic acid containing hydrolyzed (acidic) and unhydrolyzed (methyl esterified) carboxylate groups in a ratio of 1:1 (PGA, compound ), and one of its basic Fe-salts (compound ) with a ~1:2 Fe:GA stoichiometry (GA means galacturonic acid and methylated galacturonic acid units). The partially hydrolyzed pectin was transformed into compound with the use of double ion exchange with a strongly acidic macroreticular sulfonated styrene-divinylbenzene copolymer as a hydrogen ion source. The reaction of compound with FeCl resulted in compound .

Chloroplast phosphate transporter CrPHT4-7 regulates phosphate homeostasis and photosynthesis in Chlamydomonas.

In eukaryotic cells, phosphorus is assimilated and utilized primarily as phosphate (Pi). Pi homeostasis is mediated by transporters that have not yet been adequately characterized in green algae. This study reports on PHOSPHATE TRANSPORTER 4-7 (CrPHT4-7) from Chlamydomonas reinhardtii, a member of the PHT4 transporter family, which exhibits remarkable similarity to AtPHT4;4 from Arabidopsis (Arabidopsis thaliana), a chloroplastic ascorbate transporter.

Immobilization of Metronidazole on Mesoporous Silica Materials.

Metronidazole (MTZ) is a widely used drug, but due to its many side effects, there is a growing trend today to use a minimum dose while maintaining high efficacy. One way to meet this demand is to reduce the size of the drug particles. A relatively new method of size reduction is attaching the drug molecules to a mesoporous carrier.

Metronidazole does not show direct antioxidant activity in global systems.

Metronidazole has been widely used topically and systemically for more than 50 years but data on its antioxidant properties are still incomplete, unclear and contradictory. Its antioxidant properties are primarily hypothesized based on results, therefore, studies have been performed to determine whether metronidazole has antioxidant activity . We used so-called global spectrophotometric and luminometric methods.

Impact of milk thistle (Silybum marianum) on the mycotoxin caused redox-homeostasis imbalance of ducks liver.

The Fusarium mycotoxins deoxynivalenol (DON) and zearalenone (ZEA) frequently contaminate grain crops, especially maize, the basis of poultry's feed. Mycotoxins enter the food chain and induce pathological changes in edible tissues. Milk thistle (Silybum marianum) has been used for the treatment of liver disease in humans because of its antioxidant and hepatoprotective effects, but its utility in veterinary use is poorly examined.

[Fat rich diet-induced steatosis and changes in the gut–liver axis].

Introduction: Fatty liver can develop as a result of diseases, surgical procedures, medicaments, malnutrition or excessive alcohol consumption, however, fat and poor fiber feeding can be attributed as the primary cause. Non-alcoholic fatty liver can be found in 20-30% of the population. Generally, alimentary-induced fatty liver in early state is described as uncomplicated liver injury.

Metal element alteration in the lung by cisplatin and CV247 administration.

Despite significant nephrotoxicity, cisplatin is still used in the therapy of various tumors. We were interested in how metal ion composition is altered by cisplatin and whether platinum accumulates in the non-tumorous lung. We also aimed to study metal ion changes after treatment with a veterinary medicament CV247 with antioxidant property (containing Cu and Mn gluconate, ascorbic acid, Na salicylate), and whether CV247 alters pulmonary platinum accumulation in the healthy lung.

[Metal element homeostasis and oxidative stress in pathological processes].

The author briefly summarizes the relationship between oxidative stress and changes in metal ion metabolism in pathological processes. Essential metal ions such as Ca, Mg, Fe, Cu, Zn, Se are essential in the living organisms, their metabolism and intracellular concentration are strictly regulated. Externally or intrinsically, altered metal ion metabolism can lead to metal ion accumulation or metal ion deficiency.

Metal- and redox homeostasis in prostate cancer with vitamin D supplementation.

Vitamin D supplementation has a beneficial effect on cancerous patients, although it can influence the redox- and metal homeostasis. The aim of our investigation was to demonstrate the effect of vitamin D consumption on the redox- and metal homeostasis in prostate cancer, because of the recommended daily dose increased from 200 IU to 2000 IU in recent years in Hungary. Forty-three volunteers were involved in the study.

[Significance of the examination of the metal element content of herbal extracts in adjuvant therapy].

The consumption of herbal teas is becoming more and more popular nowadays both as luxury foods and a complementary part of medical therapy. Beside the organic agents of medicinal plants, the presence of inorganic ions is also relevant in exerting the favorable pharmacological effect. The author briefly summarizes the importance of some essential metal ions and their quantitative values in teas applied in the adjuvant therapy of diabetes and used as diuretics.

The mechanism of photosystem-II inactivation during sulphur deprivation-induced H production in Chlamydomonas reinhardtii.

Sulphur limitation may restrain cell growth and viability. In the green alga Chlamydomonas reinhardtii, sulphur limitation may induce H production lasting for several days, which can be exploited as a renewable energy source. Sulphur limitation causes a large number of physiological changes, including the inactivation of photosystem II (PSII), leading to the establishment of hypoxia, essential for the increase in hydrogenase expression and activity.

Changes of erythrocyte element status of colectomysed cancerous patients: Retrospective study.

Nowadays it has been established that metals and metal-induced oxidative stress act on signal transduction pathways, and are in association with cancer growth and spreading as well as in neurodegenerative disorders. In cases of several neurodegenerative diseases metals, especially Al, can be considered as a risk factor. Frequency of chemotherapy-related cognitive impairment or "chemobrain" is mentioned to be significant in literature, although very little is known about the chemotherapy-caused chemobrain and its connection with metal homeostasis alteration.

Antihyperlipidemic Effects of Sour Cherries Characterized by Different In Vitro Antioxidant Power and Polyphenolic Composition.

The aims of the present study were to clarify in vivo effects of three sour cherry cultivars characterized by different polyphenolic composition in hyperlipidemic animals in a short term experiment. The three different sour cherry cultivars were chosen based on their total in vitro antioxidant capacity, total polyphenolic, monomeric anthocyanin and flavonoid content. Male Wistar rats were divided randomly into eight groups: rats kept on normal diet (control) and normal diet supplied with sour cherry powder of one of the three cultivars; others were kept on fat-rich diet and fat-rich diet supplied with sour cherry powder prepared from one of the three cultivars.

Antioxidant value and element content in some tinctures used in medication.

Tinctures are almost the oldest medicines and their use is substantial in the medication nowadays as well. The antioxidant values by ferric reducing/antioxidant power (FRAP) method and element content by inductively coupled plasma optical emission spectrometry (ICP-OES) were investigated in some tinctures official in the VII. and VIII.

Cisplatin administration influences on toxic and non-essential element metabolism in rats.

Nowadays several papers deal with the effectiveness and side effects of metal complexes, especially cisplatin, in cancer therapy. The excretion of essential metal elements from the body is a serious problem in the treatment, but there are no data concerning the distribution and metabolism of toxic and nonessential elements. Therefore our aim was to study the concentration of some of these elements after treatment with cisplatin.

Protective effect of CV247 against cisplatin nephrotoxicity in rats.

CV247 (CV), an aqueous mixture of copper (Cu) and manganese (Mn) gluconates, vitamin C and sodium salicylate increased the antitumour effects of cisplatin (CDPP; cis-diamminedichloroplatinum) in vitro. We hypothesized that the antioxidant and cyclooxygenase-2 (COX-2; prostaglandin-endoperoxide synthase 2) inhibitory components of CV can protect the kidneys from CDPP nephrotoxicity in rats. CDPP (6.

[Mineral content of some herbs and plant extracts with anti-inflammatory effect used in gastrointestinal diseases].

Introduction: In gastrointestinal diseases folk medicine usually recommends herbs and teas with antiinflammatory activities, especially mucilage and bitter agent containing plants. The use of stomatics as adjuvant therapy in medical practice is frequent.

Aim: The authors explored the mineral element content of some herbs, because mineral elements may have significant role in the development and treatment of gastrointestinal diseases, and a close connection between the presence or absence of mineral elements and inflammatory mediators was noted.

[Effects of magnesium supplementation on calcium and magnesium levels, and redox homeostasis in normolipidemic and food-induced hyperlipidemic rats].

Unlabelled: Magnesium supplementation is quite popular because of intention of health and healthy lifestyle. However, there is no information on the metabolic effects of magnesium supplementation in healthy people and in different diseases.

Aims: Authors examined the effects of magnesium-malate on calcium, magnesium levels, and antioxidant parameters in normolipidemic and hyperlipidemic rats.

[Effects of bioactive molecules of Beta vulgaris L. ssp. esculenta var. rubra on metastatic prostate cancer].

Unlabelled: Several reports are known about the effects of nutrition supplements in the improvement of quality of life of patients with tumor, however, the physiological background remains largely unknown. Table beet affects numerous biochemical reactions, enzymes and metabolic-synthesis.

Methods: Natural table beet product come from commercial service was given twice 10 g daily for 1 month for 24 patients (mean age 68+/-8 years) with hormone-resistant and metastatic prostate cancer treated with taxan chemotherapy, who report themselves first, mean 3,6+/-2,8 years ago with their complains.

Inhibition of lipid peroxidation of herbal extracts (obtained from plant drug mixtures of Myrtilli folium, Phaseoli fructus sine seminibus and Salviae folium) used in type 2 diabetes mellitus.

Plant drug mixtures are widely used in the adjuvant therapy of type 2 diabetes mellitus for the prevention of complications. The drug mixtures generally contribute to the efficiency of the therapy and may also reduce undesirable side effects. Two herbal extracts (lyophilized aqueous extracts of plant drug mixtures 1: Myrtilli folium, Phaseoli fructus sine seminibus and 2: Myrtilli folium, Phaseoli fructus sine seminibus, Salviae folium) were investigated in in vitro rat models.

Sex-dependent alterations in erythrocyte trace element levels and antioxidant status after a month of moderate daily red wine consumption.

Objective: We tested the hypothesis whether trace elements and antioxidant status change in a sex-dependent manner may contribute to sex-dependent hepatic effects of moderate daily wine consumption.

Patient And Methods: Twenty-one healthy young men and women were enrolled to this study who consumed red wine 0.3 and 0.

[The role of zinc in the homeostasis of the human organism].

The concentrations of essential metal ions in various compartments of the human body are accurately regulated (homeostasis). Irregularities in the accumulation or depletion of the trace elements may lead to well characterized diseases. This review covers the metabolism of zinc regulations by which the intracellular and extracellular levels are kept in physiological range, biological functions, as well as pathological states that develop in its altered metabolism.

Antioxidant property of volatile oils determined by the ferric reducing ability.

Some current oils and their main components were studied to determine their antioxidant values. This was done by using the modified method of ferric reducing ability of plasma. It has been established that volatile oils of medicinal plants have on average a reducing capacity of 3.

Oxidative stress with altered element content and decreased ATP level of erythrocytes in hepatocellular carcinoma and colorectal liver metastases.

Our aim was to study the possible alterations of redox status (enzymatic and nonenzymatic parameters and metal elements) in erythrocytes of patients with hepatocellular carcinoma (HCC), colorectal liver metastases (CRLM) and benign liver neoplasms. The function of redox homeostasis is closely connected to the energy level of erythrocytes, therefore, the ATP level was also determined. Antioxidant parameters, enzyme activities of superoxide dismutase and glutathione peroxidase were estimated in the erythrocytes of 11 patients with benign tumour, 23 patients with primary malignant and 37 metastatic liver tumour patients and 30 age-matched and sex-matched healthy controls.