Exploring PPAR Gamma and PPAR Alpha's Regulation Role in Metabolism via Epigenetics Mechanism.

Peroxisome proliferator-activated receptors (PPARs) belong to a family of nuclear receptors. To date, three types of PPARs, namely PPARα, PPARδ, and PPARγ, have been identified, demonstrating co-expression across numerous tissues. PPARγ is primarily distributed in adipose tissue, the colon, the immune system, and the retina, while PPARα is predominantly expressed in metabolic tissues such as brown adipose tissue, the liver, and the kidneys.

PPARs in Clinical Experimental Medicine after 35 Years of Worldwide Scientific Investigations and Medical Experiments.

This year marks the 35th anniversary of Professor Walter Wahli's discovery of the PPARs (Peroxisome Proliferator-Activated Receptors) family of nuclear hormone receptors. To mark the occasion, the editors of the scientific periodical Biomolecules decided to publish a special issue in his honor. This paper summarizes what is known about PPARs and shows how trends have changed and how research on PPARs has evolved.

DNA Content of Various Fluids and Tissues of the Human Body.

Due to the scarcity of literature data on the DNA content of different human tissues, this study aimed to isolate DNA from different tissues and fluids of the human body together with the determination of its content in the samples studied. Material was collected and tests were performed between 1990 and 2010, during autopsies performed for prosecutor's offices in the Department of Forensic Medicine. Goiter and thyroid cancer tissues were obtained from the Department of General Surgery, Gastroenterology and Endocrinology of Wroclaw Medical University.

The hero of American and Polish nations: a molecular look at Thaddeus Kosciuszko's cause of death suggests a contribution of endocarditis caused by Cutibacterium acnes infection.

The remains of the heart tissue of Thaddeus Kosciuszko have been investigated as the possible cause of disease and death of the hero of Polish and American nations. Three specimens, DNA isolated from scrappings of wax surface, from the surface of a wooden plate, and from the linen cloth that have had contact with the object were subjected to nanosequencing. From the first two, among all reads identified, only one classified as Propionibacterium acnes (synonymous current name Cutibacterium acnes), had a purported clinical significance.

Development of a procedure involving artifact examination to determine the species affiliation of its biological material, as illustrated by an attempt to demystify an alleged Nazi lampshade made from human skin.

Objectives: The main purpose of the study was to identify the species origin of the material from which the incriminating lampshade bought at a flea market had been made.

Methods: The histological and molecular biology methods commonly used in forensic genetics were selected to achieve this goal. The DNA for the research was isolated using a QIAamp DNA Mini Kit (Qiagen) according to the manufacturer's protocol for tissues.

Inheritance vs. infectivity as a mechanism of malady and death of Frederic Chopin.

Based on a macroscopic analysis of the heart of Frederic Chopin performed in 2014, it can be stated with high probability that the composer suffered from a long lasting tuberculosis as a primary disease, which was the cause of progressive deterioration of his physical condition and numerous symptoms mainly from the respiratory tract. Tuberculous pericarditis rapidly progressing within a rather short period of time, a relatively rare complication of diffuse tuberculosis, might have been an immediate cause of death. This would aptly coincide with a startling opinion that in an autopsy picture the composer's heart had been more affected by the disease than the lungs.

Hypermethylation as the First Epigenetic Modification in Newly Onset Insulin Resistance in Human Adipocytes.

Insulin acts by binding with a specific receptor called an insulin receptor (INSR), ending up with glucose transporter activation and glucose uptake. Insulin resistance (IR) is a state when the physiological amount of insulin is not sufficient to evoke proper action, i.e.

Histone modifications influence the insulin-signaling genes and are related to insulin resistance in human adipocytes.

Insulin resistance (IR) is a state when the physiological amount of insulin is not sufficient to evoke proper action, that is, glucose uptake. Numerous conditions lead to IR, including epigenetic components. Epigenetic modifications, associated with obesity and IR are one of the main mechanisms leading to IR pathogenesis.

Original and generic clopidogrel: A comparison of antiplatelet effects and active metabolite concentrations in patients without polymorphisms in the ABCB1 gene and the allele variants CYPC19*2 and *3.

Background: Ticagrelor and prasugrel are widely used as antiplatelet therapy after coronary angioplasty. However, there is a group of patients with indications for clopidogrel treatment. This population includes patients with chronic or acute coronary syndrome who are treated invasively and have contraindications to the use of novel antiplatelet drugs due to antithrombotic treatment (particularly with non-vitamin K antagonist oral anticoagulants).

Static Mechanical Properties of Expanded Polypropylene Crushable Foam.

Closed-cell expanded polypropylene (EPP) foam is commonly used in car bumpers for the purpose of absorbing energy impacts. Characterization of the foam's mechanical properties at varying strain rates is essential for selecting the proper material used as a protective structure in dynamic loading application. The aim of the study was to investigate the influence of loading strain rate, material density, and microstructure on compressive strength and energy absorption capacity for closed-cell polymeric foams.

DNA methylation in adipocytes from visceral and subcutaneous adipose tissue influences insulin-signaling gene expression in obese individuals.

Objective: Both obesity and insulin resistance are characterized by severe long-term changes in the expression of many genes of importance in the regulation of metabolism. Because these changes occur throughout life, as a result of external factors, the disorders of gene expression could be epigenetically regulated.

Materials/methods: We analyzed the relationship between obesity and insulin resistance in enrolled patients by means of evaluation of the expression rate of numerous genes involved in the regulation of adipocyte metabolism and energy homeostasis in subcutaneous and visceral adipose tissue depots.

Metabolic Differences between Subcutaneous and Visceral Adipocytes Differentiated with an Excess of Saturated and Monounsaturated Fatty Acids.

Obesity is a major health problem in highly industrialized countries. High-fat diet (HFD) is one of the most common causes of obesity and obesity-related disorders. There are considerable differences between fat depots and the corresponding risks of metabolic disorders.

Smoothbore weapons and ammunition in shooting sports.

The paper discusses the gauge ammunition used in shooting sports, dedicated for Olympic and non-Olympic shooting disciplines. The following disciplines are addressed: trap, skeet, parcour, shooting animal silhouette targets (stationary or moving) and western competition. Ammunition used in these disciplines, especially produced in Poland, is discussed as well.

Identification and characterization of novel rapidly mutating Y-chromosomal short tandem repeat markers.

Short tandem repeat polymorphisms on the male-specific part of the human Y-chromosome (Y-STRs) are valuable tools in many areas of human genetics. Although their paternal inheritance and moderate mutation rate (~10 mutations per marker per meiosis) allow detecting paternal relationships, they typically fail to separate male relatives. Previously, we identified 13 Y-STR markers with untypically high mutation rates (>10 ), termed rapidly mutating (RM) Y-STRs, and showed that they improved male relative differentiation over standard Y-STRs.

Polymorphisms of the MTHFR gene in mothers of children with trisomy 21 (Down syndrome) in a Polish population.

Background: Down syndrome (DS) is the most frequent cause of intellectual disability. In 95% of cases, it is caused by simple trisomy of chromosome 21 resulting from nondisjunction of chromosomes in meiotic division. Currently, the molecular and cellular mechanisms responsible for the phenomenon of nondisjunction are unknown.

Oleic acid influences the adipogenesis of 3T3-L1 cells via DNA Methylation and may predispose to obesity and obesity-related disorders.

Background: Adipogenesis is the process of adipocytes formation from unspecialized progenitor cells called mesenchymal stromal cells. Numerous mechanisms including epigenetic regulation modulate the correct progress of this process. Dietary exposures occurring over a specific period of time might cause long-lasting and even permanent changes in gene expression regulated by epigenetic mechanisms.

Obesity-induced insulin resistance via changes in the DNA methylation profile of insulin pathway genes.

Background: Obesity has been shown to play a key role in the development of insulin resistance (IR). Abundant data implicate obesity in DNA hypermethylation at global and site-specific levels, including genes regulating insulin sensitivity. Deregulation of epigenetic marks implicates gene expression and changes in cell metabolism.

Preliminary analysis of polymorphism of STR markers in the population of domestic cats (Felis catus) in Lower Silesia.

Aim Of The Study: Genetic tests play a crucial role in the crime investigation process and often provide the strongest evidence for case resolution. Although the majority of genetic analyses in the field of criminalistics focus on the human DNA, genetic identification of animals is becoming an increasingly common procedure. Domestic animals, which live around people, may be silent witnesses and even victims of criminal activity.

Specialty gauge ammunition.

This paper, as the third of the series, is devoted to gauge ammunition, which may be a problem in ballistic opinions. The paper reviews existing cartridges of the type used in smoothbore weapons (bullet cartridges, non-penetrating, compressed powder, flash-bang, signal, adapter-type, and training cartridges). The paper also presents homemade special cases of gauge ammunition, as well as ammunition used for "peculiar" purposes.

Disease not genetic but infectious: multiple tuberculomas and fibrinous pericarditis as symptoms pathognomonic for tuberculosis of Frederic Chopin.

Chopin's heart, generally enlarged, presented morphologic features pathognomonic for fibrinous pericarditis presumably of tubercular origin: multiple nodular hyalinization foci-tuberculomas and fibrillary coating covering the whole surface of pericardium ("frosted heart"). We show that these features differ significantly from post mortem-formed inorganic crystalline deposits, mold colonies, or fat deposits known from various preserved anatomical objects stored for a long period of time. In our opinion, these pathologies fully justify the claim that chronic cavernous pulmonary, laryngeal, and intestinal tuberculosis presents itself as the most plausible diagnosis of Frederic Chopin and that rapidly progressing tubercular pericarditis became the immediate cause of his death.

15th Anniversary of the Molecular Techniques Unit at the Department of Forensic Medicine at Wroclaw Medical University.

Molecular Techniques Unit at the Department of Forensic Medicine, Wroclaw Medical University has been operating since December 2003. Soon it will be 15 years since its establishment. This anniversary become an inspiration to write down the story of this institution whose origins illustrate the immense changes that have taken place in forensic genetics.

Smoothbore hunting ammunition - a historical overview.

This article deals with traditional hunting amunitions in paper cases, intended for smooth-bore shotgun. The paper describes the development of gunshot cartridges in historical terms, with particular emphasis on the origins and development of systems, initiating the combustion of subsequent generations of propelling cargo. The work gives an author's look into the uprising process of an integrating gunshot cartridge.

Serotonin-Related Gene Variants in Patients with Irritable Bowel Syndrome and Depressive or Anxiety Disorders.

Aim: To assess the association of six polymorphisms in serotonin-related genes with depressive or anxiety disorders in patients with irritable bowel syndrome (IBS).

Methods: The lifetime prevalence of depressive and anxiety disorders was assessed in 95 IBS patients (85% women) using the Munich version of the Composite International Diagnostic Interview (CIDI). IBS was diagnosed according to the Rome III criteria.

Paternity testing at the Department of Forensic Medicine of Wroclaw Medical University (Poland).

Evidentiary materials in court cases comprise the testimony of all relevant parties and witnesses, physical and biological evidence, and the stage of child's development at the moment of birth. In this study, an analysis was made of results obtained between 1966 and 2014 from paternity testing capable of providing biological evidence for court cases. During this time, 16,508 opinions were released, with exclusion of paternity in 4182 cases.