Effects of concomitant use of THC and irinotecan on tumour growth and biochemical markers in a syngeneic mouse model of colon cancer.

Clinical treatment with the antineoplastic drug irinotecan (IRI) is often hindered by side effects that significantly reduce the quality of life of treated patients. Due to the growing public support for products with Δ-tetrahydrocannabinol (THC), even though relevant scientific literature does not provide clear evidence of their high antitumour potential, some cancer patients take unregistered preparations containing up to 80 % THC. This study was conducted on a syngeneic colorectal cancer mouse model to test the efficiency and safety of concomitant treatment with IRI and THC.

The Rheometric Analysis of the Polymer Modifier's Properties in the Environment of Hydrated Cement.

This paper investigates the effect of polymer modifiers (re-dispersible powder, multifunctional additives, methylhydroxyethylcellulose) on the rheological behavior of emulsions, saturated of calcium hydrosilicates to simulate a hydrating cement structure. The subjects of the study were modified emulsions which had varied concentrations of each additive and they were examined comparatively to a base emulsion. Tests were performed with a CR-rheometer ("Himpribor-1", Tula, Russia) applying the Searle measuring principle at various shear rates to characterize viscosity properties.

High Doses of Δ-Tetrahydrocannabinol Might Impair Irinotecan Chemotherapy: A Review of Potentially Harmful Interactions.

This review proposes the hypothesis that the effectiveness of irinotecan chemotherapy might be impaired by high doses of concomitantly administered Δ-tetrahydrocannabinol (THC). The most important features shared by irinotecan and THC, which might represent sources of potentially harmful interactions are: first-pass hepatic metabolism mediated by cytochrome P450 (CYP) enzyme CYP3A4; glucuronidation mediated by uridine diphosphate glycosyltransferase (UGT) enzymes, isoforms 1A1 and 1A9; transport of parent compounds and their metabolites via canalicular ATP-binding cassette (ABC) transporters ABCB1 and ABCG2; enterohepatic recirculation of both parent compounds, which leads to an extended duration of their pharmacological effects; possible competition for binding to albumin; butyrylcholinesterase (BChE) inhibition by THC, which might impair the conversion of parent irinotecan into the SN-38 metabolite; mutual effects on mitochondrial dysfunction and induction of oxidative stress; potentiation of hepatotoxicity; potentiation of genotoxicity and cytogenetic effects leading to genome instability; possible neurotoxicity; and effects on bilirubin. The controversies associated with the use of highly concentrated THC preparations with irinotecan chemotherapy are also discussed.

Contrasting Vantage Points between Caregivers and Residents on the Perception of Elder Abuse and Neglect During Long-Term Care.

Background: Elder abuse and neglect can be defined as refusing or failing to fulfil a caregiver's obligation to meet the needs of elderly individuals in order to punish or hurt them. We aimed to explore perceptions of elder mistreatment of both caregivers and residents during long-term care, and highlight significant differences in the overall mistreatment perception regarding socio-demographic variables, as well as the type of care facility.

Subjects And Methods: The study involved 171 caregivers and 245 elderly individuals in stationary facilities.

A 'pathogenic needle' in a 'commensal haystack': Genetic virulence signatures of Corynebacterium glucuronolyticum that may drive its infectious propensity for the male urogenital system.

The predominance of the genus Corynebacterium in the healthy male urogenital system contributes to the resident microbiome of not only the distal urethra, but potentially the proximal urethra and urinary bladder as well. However, for certain species in this genus, pathogenic potential was described, and the salient representative is Corynebacterium glucuronolyticum (C. glucuronolyticum) implicated in cases of urethritis and prostatitis in men.

DNA Damaging Effects, Oxidative Stress Responses and Cholinesterase Activity in Blood and Brain of Wistar Rats Exposed to Δ-Tetrahydrocannabinol.

Currently we are faced with an ever-growing use of Δ-tetrahydrocannabinol (THC) preparations, often used as supportive therapies for various malignancies and neurological disorders. As some of illegally distributed forms of such preparations, like cannabis oils and butane hash oil, might contain over 80% of THC, their consumers can become intoxicated or experience various detrimental effects. This fact motivated us for the assessments of THC toxicity in vivo on a Wistar rat model, at a daily oral dose of 7 mg/kg which is comparable to those found in illicit preparations.

Proposed dual antagonist approach for the prevention and treatment of urinary tract infections caused by uropathogenic Escherichia coli.

Urinary tract infections are among the most common infectious diseases worldwide, primarily caused by uropathogenic Escherichia coli (UPEC) strains that harbor type I pili and P pili on the surface. Standard E. coli therapy still entails antibiotic consumption, but urinary tract infections tend to recur at a very high rate.

Effective anti-adhesives of uropathogenic Escherichia coli.

Urinary tract infections (UTIs) caused by uropathogenic Escherichia coli (UPEC) are among the most common infectious diseases in humans. Due to their frequent occurrence in the community and nosocomial settings, as well as the development of resistance to the commonly prescribed antimicrobial agents, an enormous financial burden is placed on healthcare systems around the world. Therefore, novel approaches to the prevention and treatment of UTIs are needed.

Is the burnout syndrome associated with elder mistreatment in nursing homes: results of a cross-sectional study among nurses.

As this issue has not yet been addressed in Croatia, our aim was to explore the presence of the burnout syndrome in nurses and see how it is related to their perception of elder mistreatment in nursing homes and extended care units. The burnout syndrome was assessed in 171 nursing professionals with a standardised Maslach Burnout Inventory for Human Services Survey (MBI-HSS) for three dimensions: emotional exhaustion (EE), depersonalisation (DP), and personal accomplishment (PA). High EE was reported by 43.

Biofeedback and neurofeedback application in the treatment of migraine.

Introduction: Biofeedback is a non-invasive method of measurement of physiological functions. Precise instruments measure the slightest changes of different body functions-which are then in a clear and understandable manner shown in the form of feedback. Person gets an insight into what is going on inside the body and thus learns to change the patterns of behavior to improve health and performance.

Attitudes and knowledge of parents of preschool children about specific learning disabilities.

Introduction: Specific learning disorders include dyslexia - reading disorder, dysgraphia - writing disorder, dyspraxia and discoloration - difficulties with mathematical tasks. Along with these disorders, hyperactivity disorder and attention deficit are often associated with these disorders. According to available data, 2/3 of children who have difficulty reading, writing, and counting have a lack of attention.

Characteristics and Distribution of Penile Lesions in Croatian Men with Laboratory-Confirmed Low-Risk and High-Risk Human Papillomavirus (HPV) Infection.

Background: Studies that compare penoscopic evaluation with the results of molecular human papillomavirus (HPV) testing are scarce. This study assessed and compared both type and distribution of various penile lesions using penoscopy (peniscopy) technique in Croatian men with different, laboratory-confirmed HPV status.

Methods: From a large cohort of men attending an outpatient STD clinic for HPV testing, a total of 120 patients were randomly selected and grouped into those positive for low-risk HPV, high-risk HPV, both low-risk and highrisk HPV, and those with negative results.