Publications by authors named "Szymon Hryhorowicz"

Depression is a common disease that affects 3.8% of the global population. Despite various antidepressant treatments, one-third of patients do not respond to antidepressants, therefore augmentation with mood stabilizers such as lithium may be required in this group.

View Article and Find Full Text PDF
Article Synopsis
  • Colorectal cancer (CRC) is a common and deadly cancer type with varied prevalence across different populations, with most cases lacking clear genetic causes.
  • The research on genetic factors associated with low risk for CRC has produced inconsistent results, leading to confusion in the field, prompting the authors to consolidate existing knowledge and identify specific genetic markers related to cancer risk.
  • There's a call for large-scale testing of low-penetrance genetic variants, emphasizing the need for collaboration among various stakeholders, including healthcare professionals and policymakers, to prioritize CRC research despite potential costs.
View Article and Find Full Text PDF

Celiac disease, a chronic autoimmune disorder caused by genetic factors and exposure to gluten, is increasingly being recognized and diagnosed in both children and adults. Scientists have been searching for a cure for this disease for many years, but despite the impressive development of knowledge in this field, a gluten-free diet remains the only recommended therapy for all patients. At the same time, the increasing diagnosis of celiac disease in adults, which was considered a childhood disease in the 20th century, has opened a discussion on the etiopathology of the disease, which is proven to be very complex and involves genetic, immunological, nutritional, environmental and gut microbiota-related factors.

View Article and Find Full Text PDF

Celiac disease (CD) is a chronic small intestinal immune-mediated enteropathy precipitated by exposure to dietary gluten in genetically predisposed individuals. The worldwide prevalence of CD is estimated to be 0.7-1.

View Article and Find Full Text PDF
Article Synopsis
  • Multiple polyposes are complex diseases characterized by the development of cancerous intestinal polyps, with a focus on identifying genetic mutations affecting risk, particularly in Polish patients.
  • Researchers studied the p.Q82* mutation in 644 polyposis patients and 634 controls, finding the variant present in some patients, indicating a potential association with increased colorectal cancer risk.
  • The study highlights the need for further genetic screening, especially for patients with the homozygous p.Q82* variant, as it appeared more frequently in patients without other identified mutations, suggesting it could be an important marker.
View Article and Find Full Text PDF
Article Synopsis
  • Lower bone mineral density (BMD) is commonly found in inflammatory bowel disease (IBD) patients, and this study focused on the effects of folic acid levels and MTHFR gene polymorphism on BMD in Crohn's disease (CD) and ulcerative colitis (UC) patients compared to healthy controls.
  • The analysis showed that IBD patients had significantly lower BMD, T-scores, and Z-scores in both the lumbar spine and femoral neck than the control group, indicating a higher risk for low BMD.
  • Although no notable differences in folic acid levels were found between groups, the study suggested that certain MTHFR gene polymorphisms might influence bone density in IBD patients,
View Article and Find Full Text PDF

Commonly used clinical strategies against coronavirus disease 19 (COVID-19), including the potential role of monoclonal antibodies for site-specific targeted drug delivery, are discussed here. Solid lipid nanoparticles (SLN) tailored with tocilizumab (TCZ) and loading cannabidiol (CBD) are proposed for the treatment of COVID-19 by oral route. TCZ, as a humanized IgG1 monoclonal antibody and an interleukin-6 (IL-6) receptor agonist, can attenuate cytokine storm in patients infected with SARS-CoV-2.

View Article and Find Full Text PDF

In recent years, cases of liver damage caused by ashwagandha herbal supplements have been reported from different parts of the world (Japan, Iceland, India, and the USA). Here, we describe the clinical phenotype of suspected ashwagandha-induced liver injury and the potential causative mechanism. The patient was admitted to the hospital because of jaundice.

View Article and Find Full Text PDF

The prevalence of celiac disease increased in recent years. In addition to the genetic and immunological factors, it appears that environmental determinants are also involved in the pathophysiology of celiac disease. Gastrointestinal infections impact the development of celiac disease.

View Article and Find Full Text PDF

Cancer is one of the most common causes of death worldwide. A strong predisposition to cancer is generally only observed in colorectal cancer (5% of cases) and breast cancer (2% of cases). Colorectal cancer is the most common cancer with a strong genetic predisposition, but it includes dozens of various syndromes.

View Article and Find Full Text PDF
Article Synopsis
  • - Vitamin D plays a crucial role in managing inflammatory bowel disease (IBD) by regulating immune responses and bone health, as it affects the behavior of immune cells and influences inflammatory processes.
  • - IBD is linked to issues such as imbalanced gut microbiota, abnormal inflammation, and vitamin D deficiency, which complicates the disease's management.
  • - Research on vitamin D supplementation for IBD patients requires a deep understanding of its metabolic pathways, genetic impacts, and environmental influences to better support treatment and prevent complications like osteoporosis.
View Article and Find Full Text PDF
Article Synopsis
  • Researchers lack consensus on the ideal fluoride levels for health, prompting a study in Poland to assess dental fluorosis in regions with low fluoride in drinking water.
  • The study involved 696 young adults living in low-fluoride areas and found 12.8% exhibited varying degrees of dental fluorosis, evaluated using Dean’s Index.
  • Laboratory tests showed that enamel from affected teeth had significantly more protein and fluoride, and structural irregularities were noted, indicating that fluoride exposure from various sources needs careful monitoring despite low water levels.
View Article and Find Full Text PDF

Proper dietary habits are a vital element of cardiovascular (CV) treatment, and - according to the current guidelines - a diet rich in antioxidants is generally recommended. It remains, however, inconclusive whether antioxidant nutrients should be supplemented for CV health, and if so, in which form and dosage. Currently available data suggest that vitamin E may be essential in preventing CVD, especially in coronary heart disease and atherosclerosis - nevertheless, vitamin E supplementation may be questionable and may even be associated with adverse outcomes.

View Article and Find Full Text PDF

Inflammatory bowel disease (IBD) is a general term used to describe a group of chronic inflammatory conditions of the gastrointestinal tract of unknown etiology, including two primary forms: Crohn's disease (CD) and ulcerative colitis (UC). The endocannabinoid system (ECS) plays an important role in modulating many physiological processes including intestinal homeostasis, modulation of gastrointestinal motility, visceral sensation, or immunomodulation of inflammation in IBD. It consists of cannabinoid receptors (CB1 and CB2), transporters for cellular uptake of endocannabinoid ligands, endogenous bioactive lipids (Anandamide and 2-arachidonoylglycerol), and the enzymes responsible for their synthesis and degradation (fatty acid amide hydrolase and monoacylglycerol lipase), the manipulation of which through agonists and antagonists of the system, shows a potential therapeutic role for ECS in inflammatory bowel disease.

View Article and Find Full Text PDF

Eosinophilic oesophagitis (EoE) is a chronic, allergic disease associated with a T-lymphocyte response inducing esophageal eosinophilic infiltration in the esophagus. Inflammation and tissue fibrosis are responsible for the main clinical symptoms such as food impaction and dysphagia. The etiopathogenesis is multifactorial in which genetic and environmental factors coexist.

View Article and Find Full Text PDF

Background: Chronic stress is one of the leading predisposing factors in bruxism aetiology, but the influence of genetic factors is also suggested. We aimed to study whether sequence variants in genes involved in stress regulation pathways: NTRK2 and BDNF, may be associated with awake bruxism susceptibility, clinical presentation, and patients' perceived stress level.

Methods: The study group included 104 patients with probable awake bruxism and 191 population controls.

View Article and Find Full Text PDF
Article Synopsis
  • Researchers investigated the genetic factors influencing inflammatory bowel disease (IBD) by analyzing 578 IBD patients and 888 controls.
  • The study focused on gene haplotypes and their link to the onset and clinical features of IBD, revealing notable risk alleles, especially prevalent in Crohn disease (CD) and ulcerative colitis (UC).
  • Specific haplotypes were significantly associated with late-onset CD and pediatric CD, indicating the role of genetic predisposition in the disease's manifestation and progression.
View Article and Find Full Text PDF

The endocannabinoid system (ECS) is an endogenous signaling system formed by specific receptors (cannabinoid type 1 and type 2 (CB and CB)), their endogenous ligands (endocannabinoids), and enzymes involved in their synthesis and degradation. The ECS, centrally and peripherally, is involved in various physiological processes, including regulation of energy balance, promotion of metabolic process, food intake, weight gain, promotion of fat accumulation in adipocytes, and regulation of body homeostasis; thus, its overactivity may be related to obesity. In this review, we try to explain the role of the ECS and the impact of genetic factors on endocannabinoid system modulation in the pathogenesis of obesity, which is a global and civilizational problem affecting the entire world population regardless of age.

View Article and Find Full Text PDF

To provide a comprehensive analysis of the SARS-CoV-2 sequence diversity in Poland in the European context. All publicly available (n = 115; GISAID database) whole-genome SARS-Cov-2 sequences from Polish samples, including those obtained during coronavirus testing performed in our COVID-19 Lab, were examined. Multiple sequence alignment of Polish isolates, phylogenetic analysis (ML tree), and multidimensional scaling (based on the pairwise DNA distances) were complemented by the comparison of the coronavirus clades frequency and diversity in the subset of over 5000 European GISAID sequences.

View Article and Find Full Text PDF

In the etiology of inflammatory bowel disease (IBD) and osteoporosis, the connecting element is the involvement of environmental and genetic factors. Vitamin D receptor (VDR) gene polymorphisms may be associated with the pathogenesis of IBD and bone mineral density (BMD). The study aimed to analyze the relationship between ApaI and FokI polymorphisms of the VDR gene, serum vitamin D concentration, and BMD in patients with IBD.

View Article and Find Full Text PDF

Progress in genetic engineering over the past few decades has made it possible to develop methods that have led to the production of transgenic animals. The development of transgenesis has created new directions in research and possibilities for its practical application. Generating transgenic animal species is not only aimed towards accelerating traditional breeding programs and improving animal health and the quality of animal products for consumption but can also be used in biomedicine.

View Article and Find Full Text PDF

The cannabinoid receptor type 1 (CB1R), a G protein-coupled receptor (GPCR), plays an essential role in the control of many physiological processes such as hunger, memory loss, gastrointestinal activity, catalepsy, fear, depression, and chronic pain. Therefore, it is an attractive target for drug discovery to manage pain, neurodegenerative disorders, obesity, and substance abuse. However, the psychoactive adverse effects, generated by CB1R activation in the brain, limit the use of the orthosteric CB1R ligands as drugs.

View Article and Find Full Text PDF
Article Synopsis
  • Decreased bone mass is a significant issue for patients with inflammatory bowel diseases (IBD), leading to a higher risk of osteoporotic fractures, yet it is often overlooked in their treatment.
  • Researchers are exploring how variations in the estrogen receptor gene impact bone mineral density (BMD) in patients with ulcerative colitis (UC) and Crohn's disease (CD), which may contribute to both osteoporosis and inflammation.
  • In a study of 197 IBD patients, they found that women with CD had notably lower bone density, specifically linked to certain genetic markers, revealing a potential predictive relationship between gene variations and osteoporosis risks in this group.
View Article and Find Full Text PDF

Background: Colorectal cancer (CRC) and inflammatory bowel disease (IBD) are the most prevalent diseases of the digestive system, and their association is unequivocal. A long-standing inflammatory process is one of the causes of sporadic as well as inherited cancers as it impacts on malignant transformation in a wide variety of neoplastic diseases, including colorectal cancer.

Methods: An extensive publication search was performed in Medline and PubMed database.

View Article and Find Full Text PDF

Background: A common feature in the etiology of inflammatory bowel disease (IBD) and osteoporosis is a complex genetic background. Moreover, it has been shown that some of the susceptibility loci overlap for both diseases. One of the genes that may be involved in the pathogenesis of IBD as well as decreased bone mass is the vitamin D receptor (VDR) gene.

View Article and Find Full Text PDF