15 research outputs found

    Navigating the landscape of Postpartum Depression: a comprehensive review

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    Introduction and purpose: The joyous occasion of childbirth is often overshadowed by the prevalence of postpartum depression (PPD), a complex mental health condition affecting mothers globally. This paper reviews the current state of knowledge on PPD, exploring its frequency, risk factors, pathogenesis, symptoms, and impact on maternal and child health. Description of the State of Knowledge: Recent studies indicate an alarming increase in PPD rates, with notable racial and socioeconomic disparities. Symptoms of PPD, ranging from mild to severe include mood disturbances, cognitive impairments, and self-harm ideation. The repercussions extend beyond the postpartum period, affecting long-term child development, breastfeeding practices, and the mother-infant bond. Advancements in screening tools, particularly the Edinburgh Postnatal Depression Scale (EPDS), have facilitated early detection. However, creating an environment conducive to open communication about mental health remains a significant challenge. Interventions for PPD include psychotherapeutic approaches, pharmacological interventions, and complementary therapies. Brexanolone, the first FDA-approved drug for PPD, represents a significant breakthrough. Community-based and peer support programs, alongside a multidisciplinary approach involving healthcare professionals and support networks, have shown promise in alleviating PPD symptoms. Summary: In conclusion, PPD remains a substantial public health concern. Increased awareness of its multifaceted nature has led to improved screening, diagnosis, and intervention strategies. Ongoing dialogue, supportive environments, and refined treatments are essential for enhancing the well-being of both mothers and their infants in the postpartum period

    Medical cannabis: Mechanisms of action and therapeutic targets

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    Introduction: In recent years, multiple publications underscored many beneficial properties associated with medical marihuana. Its current applications encompass pain relief, multiple sclerosis, the treatment of anxiety disorders, Dravet syndrome and other. It can potentially extent to the treatment of patients with fibromyalgia or in people with diabetic complications. The expansive potential of medical cannabis in the prevention and treatment of many diseases is seen in its complex and multidirectional mechanisms of action. Medical marihuana has impact on cannabinoid receptors, and it exerts effects through many other molecular targets. Aim of the study: This review seeks present mechanisms of action of medical marihuana and explore its potential therapeutic targets. Materials and methods: A comprehensive review of literature available in the PubMed and Google Scholar databases was performed, using the following keywords: "medical marihuana", "medical cannabis", "medical marihuana mechanism of action", "therapeutic targets of medical marihuana", "endocannabinoid system", “medical marihuana in pain treatment”, “medical marihuana amygdala body”, “medical marihuana serotonin receptors”. Conclusions: Medical marihuana emerges as a promising candidate in the treatment of many diseases and common condition. However, further research is imperative to ascertain the effects of the drug and transform it into an effective medication which maximizes benefits and minimalizes side effects

    Atopic dermatitis - itchy problem of children and adults

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    Atopic dermatitis is a chronic inflammatory disease with recurrent exacerbations, persistent itching, erythema, dry skin due to damage to the epidermal barrier, and staphylococcal infections. The causative factors are mutations in the gene encoding filaggrin, dysregulation of the immune system, changes in the skin microbiome and lipids in the stratum corneum and deficiency of antimicrobial peptides AMPs. The disease mainly affects children, causing                         a significant deterioration in the quality of life, and its first symptoms occur in approximately 90% before the age of 5. Lesions most often appear on the bends of elbows and knees, on the face and neck, but may also affect the skin of the entire body (erythroderma). The location of the eruptions depends on age. Atopic dermatitis is the result of complex genetic, epigenetic, environmental and immunological interactions with a coexisting epidermal barrier defect. The disease is diagnosed based on the Hanifin and Rajka criteria. Treatment of atopic dermatitis is symptomatic and selected individually. They include the elimination of provoking factors, care of the epidermal barrier, and anti-inflammatory and anti-pruritic therapy

    Combined Anticancer Therapy for Prostate Cancer - Literature Review

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    Prostate cancers represent a significant health problem, and their etiology is complex and multifaceted. It is estimated that in 2018, 1.3 million new cases and 359,000 deaths due to prostate cancer were diagnosed. They constitute the second most common group of cancers and the fifth most common cause of cancer-related deaths in men worldwide. The present study encompasses a literature review aimed at conducting an analysis of the potential of combined anticancer therapy as a prospective method for enhancing treatment efficacy, minimizing side effects, and improving long-term survival outcomes for prostate cancer patients. Combinations of compounds such as sunitinib with docetaxel, carboplatin with paclitaxel, estramustine or flutamide with luteinizing hormone-releasing hormone agonists, as well as docetaxel in conjunction with dexamethasone and octreotide, have demonstrated synergistic effects and an augmentation of therapeutic effectiveness. It is noteworthy to emphasize the potential enhancement of docetaxel's anticancer activity with concurrent administration of dexamethasone and octreotide, as well as combined therapy involving docetaxel, prednisone, and curcumin

    X-ray photoelectron spectroscopy analysis as a tool to assess factors influencing magnetic anisotropy type in Co/MgO system with gold interlayer

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    X-ray photoelectron spectroscopy (XPS) studies of Au/Co/Au(0.3 nm)/MgO and Au/Co/MgO systems were conducted in order to monitor the electronic structure modification at Co/MgO interface with/without gold interlayer. A detailed analysis of Co 2p states revealed that the amount of minor oxygen contribution at Co/MgO interface decreased after the Au interlayer was added. The obtained XPS results together with density functional theory (DFT) allowed explanation of the increase of surface anisotropy energy in the sample with the gold interlayer in terms of (i) noble and transitional metal d-d orbital hybridization; (ii) interfacial Co 3d and O 2p; and (iii) interface imperfectio

    Mechanical thrombectomy in acute stroke – Five years of experience in Poland

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    Objectives Mechanical thrombectomy (MT) is not reimbursed by the Polish public health system. We present a description of 5 years of experience with MT in acute stroke in Comprehensive Stroke Centers (CSCs) in Poland. Methods and results We retrospectively analyzed the results of a structured questionnaire from 23 out of 25 identified CSCs and 22 data sets that include 61 clinical, radiological and outcome measures. Results Most of the CSCs (74%) were founded at University Hospitals and most (65.2%) work round the clock. In 78.3% of them, the working teams are composed of neurologists and neuro-radiologists. All CSCs perform CT and angio-CT before MT. In total 586 patients were subjected to MT and data from 531 of them were analyzed. Mean time laps from stroke onset to groin puncture was 250±99min. 90.3% of the studied patients had MT within 6h from stroke onset; 59.3% of them were treated with IV rt-PA prior to MT; 15.1% had IA rt-PA during MT and 4.7% – emergent stenting of a large vessel. M1 of MCA was occluded in 47.8% of cases. The Solitaire device was used in 53% of cases. Successful recanalization (TICI2b–TICI3) was achieved in 64.6% of cases and 53.4% of patients did not experience hemorrhagic transformation. Clinical improvement on discharge was noticed in 53.7% of cases, futile recanalization – in 30.7%, mRS of 0–2 – in 31.4% and mRS of 6 in 22% of cases. Conclusion Our results can help harmonize standards for MT in Poland according to international guidelines

    Interactions of Linear Analogues of Battacin with Negatively Charged Lipid Membranes

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    The increasing resistance of bacteria to available antibiotics has stimulated the search for new antimicrobial compounds with less specific mechanisms of action. These include the ability to disrupt the structure of the cell membrane, which in turn leads to its damage. In this context, amphiphilic lipopeptides belong to the class of the compounds which may fulfill this requirement. In this paper, we describe two linear analogues of battacin with modified acyl chains to tune the balance between the hydrophilic and hydrophobic portion of lipopeptides. We demonstrate that both compounds display antimicrobial activity with the lowest values of minimum inhibitory concentrations found for Gram-positive pathogens. Therefore, their mechanism of action was evaluated on a molecular level using model lipid films mimicking the membrane of Gram-positive bacteria. The surface pressure measurements revealed that both lipopeptides show ability to bind and incorporate into the lipid monolayers, resulting in decreased ordering of lipids and membrane fluidization. Atomic force microscopy (AFM) imaging demonstrated that the exposure of the model bilayers to lipopeptides leads to a transition from the ordered gel phase to disordered liquid crystalline phase. This observation was confirmed by attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) results, which revealed that lipopeptide action causes a substantial increase in the average tilt angle of lipid acyl chains with respect to the surface normal to compensate for lipopeptide insertion into the membrane. Moreover, the peptide moieties in both molecules do not adopt any well-defined secondary structure upon binding with the lipid membrane. It was also observed that a small difference in the structure of a lipophilic chain, altering the balance between hydrophobic and hydrophilic portion of the molecules, results in different insertion depth of the active compounds

    Controlling Stoichiometry in Ultrathin van der Waals Films

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    Funding Information: Financial support from the National Science Foundation under award 2140038 is acknowledged. In addition, we acknowledge funding from the German Research Foundation (DFG), project KR 4866/6-1, and through the collaborative research center “Chemistry of Synthetic 2D Materials” SFB-1415-417590517. We further thank the Gauss Centre for Supercomputing e.V. ( www.gauss-centre.eu ) for providing computing time on the GCS Supercomputer HAWK at Höchstleistungsrechenzentrum Stuttgart ( www.hlrs.de ) and also TU Dresden (Taurus cluster) for generous grants of CPU time. Publisher Copyright: © 2022 American Chemical Society.The platinum-tellurium phase diagram exhibits various (meta)stable van der Waals (vdW) materials that can be constructed by stacking PtTe2 and Pt2Te2 layers. Monophase PtTe2, being the thermodynamically most stable compound, can readily be grown as thin films. Obtaining the other phases (Pt2Te3, Pt3Te4, Pt2Te2), especially in their ultimate thin form, is significantly more challenging. We show that PtTe2 thin films can be transformed by vacuum annealing-induced Te-loss into Pt3Te4- and Pt2Te2-bilayers. These transformations are characterized by scanning tunneling microscopy and X-ray and angle resolved photoemission spectroscopy. Once Pt3Te4 is formed, it is thermally stable up to 350°C. To transform Pt3Te4 into Pt2Te2, a higher annealing temperature of 400°C is required. The experiments combined with density functional theory calculations provide insights into these transformation mechanisms and show that a combination of the thermodynamic preference of Pt3Te4 over a phase segregation into PtTe2 and Pt2Te2 and an increase in the Te-vacancy formation energy for Pt3Te4 compared to the starting PtTe2 material is critical to stabilize the Pt3Te4 bilayer. To desorb more tellurium from Pt3Te4 and transform the material into Pt2Te2, a higher Te-vacancy formation energy has to be overcome by raising the temperature. Interestingly, bilayer Pt2Te2 can be retellurized by exposure to Te-vapor. This causes the selective transformation of the topmost Pt2Te2 layer into two layers of PtTe2, and consequently the synthesis of e Pt2Te3. Thus, all known Pt-telluride vdW compounds can be obtained in their ultrathin form by carefully controlling the stoichiometry of the material.Peer reviewe
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