Effect of tocopherol on biochemical blood parameters in pleuritis-induced rats treated with 2,3,7,8-tetrachlorodibenzo-p-dioxin.

The aim of this study was to evaluate the effect of tocopherol on pleuritis-induced rats exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Rats were treated with a single TCDD dose of 5 µg/kg body weight (b.w.) and then for 3 weeks they were daily supplemented with tocopherol at a dose of 30 mg/kg b.w. The inflammation was initiated by intrapleural injection of a single dose of 1% carrageenin solution in a volume of 0.15 ml. Changes in biochemical blood parameters were measured three times at the 24th, 72nd and 120th hour of pleuritis and the blood was collected from 20 animals of each group of rats (group with the control inflammation; group treated with TCDD and with control inflammation; group treated with TCDD, supplemented with tocopherol and with the inflammation). The following biochemical parameters were measured: tumor necrosis factor (TNF), interleukin-1 (IL-1), IL-2, IL-4, IL-6, procollagen, telopeptide, fibrinogen, cholesterol, urea, creatinine, aspartate aminotransferase (AspAT) and alanine aminotransferase (AlAT). Daily supplementation of tocopherol caused significant changes in the level of TNF, IL-1, IL-4, IL-6, urea, creatinine, AspAT and AlAT. According to the results of these studies, we suggest that tocopherol supplementation in high doses could act as a protective treatment to improve liver metabolism.

Recovery and quality of life in patients with ruptured cerebral aneurysms.

PURPOSE: Subarachnoid hemorrhage (SAH) secondary to ruptured cerebral aneurysm is a common and frequently devastating condition with a high mortality and morbidity among survivors. The purpose of this study was to conduct a long-term follow-up of SAH patients, assess the changes in functional outcomes, describe quality of life (QOL), and determine its predictors 3.6 years after the hemorrhage. DESIGN: The study design is an exploratory, descriptive correlational design. METHODS: Results were collected from a sample of 113 SAH survivors treated in our institution over a 2-year period (January 2006 until December 2007). We collected data on early and long-term functional outcomes and compared the differences. The health-related QOL was measured using the Polish version of The Short Form - 36 Health Survey Questionnaire (SF-36v2). Multivariable logistic regression was derived to define independent predictors of the QOL. FINDINGS: The mean follow-up time was 3.6 years. Sixty-six percent of patients had improvement in functional outcomes and among previously employed people 56% returned to work. QOL deteriorated in 24% of patients with the most affected dimension of Physical Role. Factors that predict good QOL are male gender, younger age, good economic/professional status, lack of physical handicaps, rehabilitation in a professional center, subjective improvement in health status, and absence of headaches or physical decline. CONCLUSIONS AND CLINICAL RELEVANCE: Recovery process in SAH patients is dynamic and progresses over time. Since physical handicaps and low economic status significantly reduce the quality of life, an effort should be made to provide intensive rehabilitation and to encourage SAH survivors to return to work.

Health-related quality of life of patients with cystic fibrosis assessed by the SF-36 questionnaire.

INTRODUCTION: Cystic fibrosis (CF) is a genetic disorder, which is most common among Caucasians. There are about 100,000 people suffering from this disorder in the world, including 25 000 in Europe. Although the first mention of cystic fibrosis is thought to have occurred in 1595, recognition of the entire clinical spectrum of CF and the resultant development of contemporary knowledge occurred in the 20th century. In the past, CF was considered a fatal childhood disorder; however, contemporary statistical data shows that 50% of people with cystic fibrosis have a chance to live up to 30 years of age, and the lifespan of children born in the 1990s is projected to be at least 40 years. Consequently, the number of adults with cystic fibrosis is increasing, making it necessary for multidisciplinary actions aimed at the improvement of clinical management of the condition as well as minimizing the influence of CF and its treatment on the quality of continually extending life of patients. Since cystic fibrosis interferes with almost all important aspects of human functioning, quality of life (QoL) of individuals with CF should be constantly and closely monitored, thus allowing for consideration of their needs and providing an opportunity to modify the therapeutic approach if necessary. The aim of this study was to visualize the QoL of people with cystic fibrosis, to identify differences in their assessment of QoL depending on sex and age, as well as to compare the QoL of patients with CF with a control group of people without CF. MATERIAL AND METHODS: The study was conducted among patients hospitalized at the Clinic of Pulmonology and Cystic Fibrosis at the Institute of Tuberculosis and Lung Diseases in Rabka-Zdrój from February to April 2012. The study encompassed 30 patients (19 women and 11 men), aged between 16 and 42 years, with acute episodes of bronchopulmonary disease. A Short Form-36 (SF-36) questionnaire was used to evaluate the health-related quality of life. The control group encompassed 30 healthy individuals with the same sex ratio and similar age ratio as in the group of patients. RESULTS: The analysis of quality of life with the use of the SF-36 questionnaire showed that in general the quality of life of the assessed patients was low. The patients scored on average below 50 in the following subscales: Role Physical (RP), General Health (GP), Vitality (VT), Social Functioning (SF), Physical Component Summary (PCS) and Mental Component Summary (MCS). In other subscales the results slightly exceeded 50. In women, low quality of life was found in the following subscales: Role Physical, Bodily Pain (BP), General Health (GH), Vitality (VT), Social Functioning (SF), Physical Component Summary (PCS) and Mental Component Summary (MCS). In men, average results below 50 were found in the following subscales: General Health (GH) and Vitality (VT). Moreover, in all subscales, the quality of life assessed by women was lower than that reported by men.Patients > 25 years assessed their quality of life as lower in all subscales except for the Role Emotional (RE) subscale. Statistically significant differences were identified with regards to Vitality (VT) and Mental Health (MH). The analysis of the influence of CF patients' age on their quality of life, conducted with the use of the SF-36 questionnaire, showed that there were statistically significant correlations (p < 0.05) between age and the following domains: Physical Functioning (PF), Role Physical (RP), Bodily Pain (BP), Vitality (VT), Social Functioning (SF), Mental Health (MH) and Physical Component Summary (PCS). The comparison between the QoL of patients with CF and those of a control group of individuals not suffering from CF demonstrated that there were statistically significant differences in all subscales. Patients' quality of life was significantly poorer than quality of life of individuals without CF. CONCLUSIONS: 1. Patients with CF generally perceive their quality of life as low.2. There are differences in the assessment of quality of life between women and men.3. The older the patients, the worse their quality of life assessment in most subscales.4. There are critical differences in the quality of life assessment between patients with CF and a control group encompassing individuals without CF. Patients with CF find their quality of life poorer.

The risk for syncope and presyncope during surgery in surgeons and nurses.

BACKGROUND: Surgeons and nurses are exposed to orthostatic stress. AIMS: To assess the lifetime incidence of syncopal and presyncopal events during surgery in operation room staff and reveal the predicting factors. METHODS AND RESULTS: The study included 317 subjects (161 F, 156 M) aged 43.9 ± 9.6; 216 surgeons and 101 instrumenters. The study included filling of an anonymous questionnaire on the syncope and presyncope history. RESULTS: At least one syncopal event during operation was reported by 4.7% and presyncope by 14.8% of the studied population. All but one subject reported prodromal symptoms before syncope. In the medical history, syncope outside the operating room was reported by 11% of the studied group. Syncope and presyncope during operation was related to syncope in the medical history outside the operation room, respectively: odds ratio (OR) 20.2 95% confidence interval (CI): 2.0-70.5 and OR 10.8; CI: 5.0-23.4 and to presyncope in the medical history, respectively: OR 23.5; CI: 7.4-74.4 OR 8.9; CI: 3.6-11.2 (P < 0.001). CONCLUSIONS: (1) Syncope and presyncope may occur during surgery in the staff of the operating room. (2) Syncope in the operating room is usually preceded by prodromal symptoms and has vasovagal origin. (3) Both lower then expected occurrence of syncope in the operating room staff and absence of any difference between genders in this regard indicate preselection in the process of choosing profession and specialization. (4) Syncope and presyncope outside the operating room in medical history increases the risk of syncope and presyncope inside the operation room.

[High doses of tocopherol in the prevention and potentiation of dioxin in experimental inflammation-potential application]. / Zastosowanie wysokich dawek tokoferolu w prewencji i potencjalizacji dzialania dioksyn w doswiadczalnym zapaleniu.

Emission of toxic and persistent organochlorine compounds into the environment is known to have been recently a very important environmental and health problem. One of the major groups of these compounds is the polychlorinated dibenzodioxins (PCDDs), commonly named dioxins, including 75 compounds composed of benzene rings with bound chlorine atoms in different positions and quantities. Polychlorinated dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs) are known to have a similar structure and properties. The biological effects of dioxins in food chains have been widely studied in the literature on the subject for the last four years. The major pathways of their impact on the organism are suspected to stimulate the cascade of inflammatory cytokines and the induction of oxidative stress. An effective way to prevent poisoning may, therefore, be expected to be administration of antioxidants and anti-inflammatory agents. Recent studies in experimental animals have confirmed the protective action of high doses of tocopherol and mentioned substances against dioxins.

[The composition, biochemical properties and toxicity of snake venoms]. / Sklad i wlasciwosci biochemiczne oraz toksycznosc jadów wezy.

2.5 million cases of snake bites are noticed in the world every year (within 100,000 is mortal). These bites occur frequently in Asia and Africa. Some reports proved the toxicity and composition changes of well-known venoms from the same snake species according to the climatic zone. Snake venom is a natural source of many biologically active substances, including those with potential therapeutic properties. These substances contain peptides, proteins, and enzymes which are divided into five subfamilies: three-finger toxins, serine protease inhibitors of the Kunitz type, phospholipases A2, serine proteases, and metalloproteases. All snake venoms are grouped depending on their mode of action. They usually cause neurotransmission disorders, cardiotoxic action, hemostasis disorders, and have central nervous system and necrotic activity.

Influence of dioxin intoxication on the human system and possibilities of limiting its negative effects on the environment and living organisms.

INTRODUCTION AND OBJECTIVE: Despite the restrictive legal regulations related to the reduction of dioxins emission, their concentration in the environment is still too high. Mainly, this is related to the illegal utilisation of electronic equipment and combustion of wastes, and also to intensified activity and maintenance of ships, especially in developing countries. The most important remaining source in Europe is the metal industry. Studies on the mechanism of impact of dioxins are still being carried out. This review points at new possibilities for limiting the molecular mechanisms of dioxins activity, inter alia, through the application of high doses of tocopherol and acetylsalicylic acid while treating dioxins intoxication. BRIEF DESCRIPTION OF THE STATE OF KNOWLEDGE: Apart from the knowledge of dioxins affinity to the aryl hydrocarbon receptor (AhR), the multi-stage radical-form actions and the pro-inflammatory mechanism associated with cyclooxygenase-II enzyme (COX-2) are under intense investigation at the moment. Due to the high affinity of dioxins to animals adipose tissue and their ability to accumulate in it, they can enter the food chain. Furthermore, high dioxin doses can cause poisoning manifested as advanced clinical symptoms, whereas in smaller doses, when cumulated, can cause metabolic changes which are often difficult to associate with their presence. Recently, some serious food contaminations by dioxins have been demonstrated. Sea fish and products from contaminated aqueducts still constitute potential sources of dioxins pollution. CONCLUSION: According to recent studies, dioxins are present in different concentrations in the environment and cause specific and long-time effects. These effects could be limited by the use of tocopherol and acetylsalicylic acid.

Hydrocephalus in newborns: clinical conditions and primary surgical treatment.

BACKGROUND: Hydrocephalus is a state in which excessive accumulation of cerebrospinal fluid occurs in intracranial space as a result of disorders of its circulation hydrodynamics. OBJECTIVES: The aim of this study was to analyze the clinical conditions and primary surgical treatment of hydrocephalus in the newborns examined in the study. MATERIAL AND METHODS: The data was gathered using a retrospective analysis of the medical and nursing records of 57 newborns treated for hydrocephalus at the Department of Pediatric Surgery of the Dr. A. Jurasz University Hospital in Bydgoszcz, Poland. RESULTS: In the years 2008-2009 at the Department of Pediatric Surgery of Dr. A. Jurasz University Hospital in Bydgoszcz, 57 newborns were treated for hydrocephalus. In all patients (100% of the study group) regardless of sex, age, place of residence or etiology, the doctors used surgical therapy. CONCLUSIONS: There is a connection between selected causes of hydrocephalus in the study group and sociodemographic characteristics such as the place of residence or age. Sociodemographic data (sex, age, place of residence) have no effect on the treatment of hydrocephalus in newborns. In all cases of hydrocephalus in the study, the treatment used was implantation of a drainage system. Rickham reservoirs are more rarely implanted in full-term newborns than in premature ones, while ventricle-peritoneal valves are more frequently used in full-term newborns than in premature babies. Regardless of the reason for hydrocephalus formation, the treatment is based on surgical intervention and the most common drainage system used to correct the defect is the ventricle-peritoneal valve.

The influence of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) on hematological parameters during experimentally induced pleuritis in rats.

Proper functioning of homeostatic mechanisms is characteristic for every healthy organism and enables adapting to environmental changes. These complicated systematic reactions can neutralize the harmful stress factors leading to various inflammatory reactions. The aim of this study was to determine dynamic changes in the inflammatory reaction after single 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) administration of 5 µg/kg body weight into rats with experimentally induced pleuritis. These changes were observed by monitoring the hematological blood parameters during inflammation. The obtained results proved that dioxins contribute to various changes in the character of the inflammatory response. TCDD administration before pleuritis initiation caused an increase of lymphocytes and significant decrease of the number of neutrophils during inflammation. The current study proved that administration of low TCDD dose (seven times lower than used in other studies) can cause thymus, spleen, or lymphatic gland atrophy. This finding indicates the toxic influence of small TCDD dose especially on the immune system.

Spine and spinal cord injuries--causes and complications.

BACKGROUND: The spine as a motor organ is very often exposed to the action of forces released by an injury. The most frequent cause of spine and spinal cord injuries are traumas which are the result of accidents, and untreated osteoporosis or neoplasms as well. OBJECTIVES: Aim of the study is an analysis of the causes of spine and spinal cord injuries as well as of the complications of these injuries. MATERIAL AND METHODS: The material covers 130 patients hospitalized due to spine injury in 2008-2010 at the Clinical Department of Neurosurgery of Wroclaw Medical University. The data has been obtained on the basis of an analysis of medical and nursing documentation. RESULTS: In the research group, men (64%) prevail over women (36% of the respondents). Most often, spine injuries affected patients aged over 60. Spine injuries without spinal cord injury comprised 84.6%, whereas with spinal cord injury only 15.4%. About 75% of the examined patients were admitted to the department as emergency admissions, within the time exceeding 12 hours since an injury occurrence (58.5%). The vast majority of patients (80%) were treated surgically. After completing treatment, most of the respondents were discharged (71.5%). After leaving the hospital, over half of the patients (52.3%) were not able to move on their own. CONCLUSIONS: The most common causes of spine injuries in patients are pathologic injuries (28.5%), traffic collisions (27.7%) and falls from heights (20.0%). To the largest degrees, spine injuries concerned the thoracic segment (in 34.6%), cervical segment (32.3%) and lumbar (23.8%). Complications occurring after spine injuries included pain of a damaged spine segment (61.1%), pain in other location (36.6%) and gastroenterological complications (17.6%). In the case of complications after spine and spinal cord injuries, gastroenterological complications predominate (in 42.9% patients) along with complications of the urinary system (38.1%) and pain of the injured spine segment (38.1%).

Mechlorethamine (NTG) effects on the erythrocytic and leukocytic blood parameters during experimentally induced pleuritis in rats.

BACKGROUND: According to cytotoxic and mutagenic properties, nitrogranulogen (NTG) changes the character of inflammatory reactions. Our previous studies have shown that NTG can enhance immunological defense reactions, because of its high affinity to DNA, and causes disorders in the synthesis of acute phase proteins (e.g., haptoglobin, transferrin, fibrinogen and complement protein C3) [15]. The aim of the current studies was to determine the influence of three different NTG doses: 5 µg/kg b.w. (body weight), 50 µg/kg b.w. and 600 µg/kg b.w. (cytotoxic dose) on the values of hematological blood parameters: RBC, HGB, HCT, RDW, MCV, MCH, MCHC, PLT, MPV, PCT, PDW, WBC, NEUT, LYMPH, MONO, EOS and BASO in pleuritis-induced rats. METHODS: The animals were randomized into five groups: Group I - control group; Group II - IP (induced pleuritis) group; Group III - NTG5 group; Group IV - NTG50 group; Group V - NTG600 group. The blood was collected from all the groups at the 24(th) h, 48(th) h, and 72(nd) h after the initiation of the carrageenin-induced inflammatory reaction. RESULTS: These investigations have revealed that NTG administered at the dose of 5 µg/kg b.w. caused the drop of the leukocyte and lymphocyte numbers and the rise of the neutrophil number at the 72(nd) h of the experimental-induced inflammatory reaction. Moreover, the dose of: 5 µg/kg b.w. was an immunomodulatory property and it also increased the erythrocytic parameters. On the contrary, NTG applied at the doses of 50 µg/kg and 600 µg/kg b.w. contributed to the drop of both: the erythrocytic and leukocytic parameters during the whole time of the inflammatory reaction. CONCLUSIONS: The results suggest that nitrogranulogen affects the erythropoiesis.

Estimation of the action of three different mechlorethamine doses on biochemical parameters during experimentally induced pleuritis in rats.

Nitrogranulogen (NTG) may modify the character of inflammatory reactions. These modifications are a result of cytotoxic and mutagenic effects. NTG has high affinity to DNA and causes disorders in the synthesis of acute phase proteins (e.g., haptoglobin, transferrin, fibrinogen, and complement protein C3). Our previous studies have shown that small doses of NTG can enhance immunological defense reactions in the organism. The aim of the current studies was to determine how different NTG doses cause changes in the values of biochemical parameters in pleuritis-induced rats. The animals were randomized into five groups: Group I - control group; Group II - IP (induced pleuritis) group; Group III - NTG5 group; Group IV - NTG50 group; Group V - NTG600 group. Blood was collected from all groups of animals at 24, 48, and 72 h after the initiation of the carrageenin-induced inflammatory reaction. These investigations revealed that a dose of 5 µg NTG/kg b.w. (body weight) can change the character of the inflammation. Our studies also show that a dose of 600 µg NTG/kg b.w. causes a rapid decrease in the level of C3 at the 72 h of the experiment (after 3 applications every 24 h), which indicates a cytotoxic action of such a large NTG dose. NTG used at doses of 50 and 600 µg/kg b.w. causes the opposite metabolism of albumins and other serum proteins. Our studies show that the different doses of NTG have distinct effects on the inflammatory reaction.