Ulcer Therapy Research Articles

Effect of aspirin on platelet-rich plasma of diabetes mellitus with lower extremity atherosclerosis.

Aim: Platelet-rich plasma (PRP), enriched with multiple growth factors, is a promising adjunctive therapy for diabetic foot ulcers (DFUs). As a classic anti-platelet drug for diabetic patients, the effects of aspirin on the content of growth factors in PRP remains unclear.Methods: Our study enrolled diabetic patients who were currently taking or not taking aspirin as the research subjects, with healthy volunteers as the control. PRP from these individuals was activated with glucose calcium and thrombin. Growth factors levels in PRP activated supernatant (PRP-AS) and wound healing ability of platelet gel (PG) in the full-thickness skin defect diabetic mouse model were compared.Results: We found the level of growth factors in PRP-AS derived from two groups of diabetic patients were not statistically different, whereas both lower than that from healthy volunteers. Similarly, we found better wound healing ability of PG from healthy volunteers than those from diabetic patients, but no difference between the two groups of diabetic patients in the mouse model.Discussion: Aspirin does not interfere with autologous PRP therapy when using calcium gluconate and thrombin as agonists. However considering the content of growth factors, PRP from healthy volunteers is a preferable option for promoting DFU repair.

Mechanism of cold atmospheric plasma in treatment of chronic skin ulcer

To review the mechanism of cold atmospheric plasma (CAP) in the treatment of chronic skin ulcer, providing a new idea for ulcer therapy. The literature about CAP in the treatment of chronic skin ulcers in recent years was extensively screened and reviewed. The treatment principle, active ingredients, and mechanism were summarized. CAP is partial ionized gas discharged by plasma generator in high frequency under high voltage. It contains electrons, positive and negative ions, reactive oxygen species, reactive nitrogen species, and ultraviolet rays. In vitro and animal experiments show that the active ingredients contained in CAP can inactive microorganisms, against biofilm, regulate immune-mediated inflammatory, promoting blood flow, stimulate tissue regeneration and epithelial formation in the course of wounds healing. CAP play a role in different stages of chronic skin ulcer healing, with good effectiveness and safety, and broad clinical application prospects. But more studies are needed to explore the indications and dosages of CAP therapy.

Development of oral pH-sensitive redox nanotherapeutics for gastric ulcer therapy

Gastric ulcer is a common gastrointestinal disorder worldwide. Although its pathogenesis is unclear, the overproduction of reactive oxygen species (ROS), which results in an oxidative imbalance, has been reported as a central driving mechanism. Within the scope of this investigation, we developed two different self-assembling redox nanoparticles (RNPs) with ROS-scavenging features for the oral treatment of gastric ulcers. One of them, referred to as RNPN, disintegrates in response to acidic pH, whereas the other, denoted as RNPO, remains intact regardless of pH variations. Both types of RNPs showed different free radical scavenging activities in vitro. Protonation of the amino linkages in the side chains of RNPN caused the micelle structure to collapse and the nitroxide radicals encapsulated in the core were exposed to the outside, resulting in a significant increase in antioxidant capacity as the pH decreases. In contrast, RNPO maintained its spherical structure and consistent antioxidant reactivity irrespective of pH changes. The in vivo gastric retention of orally administered RNPN was significantly improved compared to that of RNPO which might be explained by the increased exposure of cationic protonating segments in RNPN on the negatively charged gastric mucosal surface. Owing to its improved gastric retention and enhanced ROS scavenging capacity under acidic pH conditions, RNPN exhibited superior protective effects against oxidative stress induced by aspirin in a gastric ulcer mouse model compared to RNPO. In addition, neither RNPN nor RNPO resulted in severe lethal effects or significant changes in the morphology of zebrafish embryos, indicating their biosafety. Our results suggest that the oral administration of RNPs has a high therapeutic potential for gastric ulcer treatment.

A stimuli-responsive keratin functionalized PEI coated baicalin nano-hydrogels for modulated gastric ulcer therapy

Nano-hydrogel system conjugated with polymer like polyethylieneimine offers a significant attention in the field of healthcare owing to their significant pH-specific swelling behaviour in acidic medium. The focus of this research work was to fabricate a stable and non-toxic, keratin-PEI coated nano-hydrogel formulation exhibiting synergistic effect for gastric ulcer treatment. K-PEI-BL nano-hydrogel shows particle size ~500nm with polydispersity index 0.473 ± 0.04, zeta potential of 15.4 ± 6.06mV, entrapment efficiency of 91.94 ± 0.04% and in vitro controled release of 72.78 ± 0.52% for 24h in pH 1.2. Scanning electron miscroscopy (SEM), Transmission electron microscopy (TEM) images confirmed the morphological structure of double coated nano-hydrogel particle. Ex-vivo mucoadhesive study of keratin-PEI coated-BA-NH formulation at gastric ulcer site exhibited 21h and 15min as a residence time in comparison to uncoated BA-NH formulation. In-vivo analysis displayed improvenent in ulcer treatment compared to negative control group with 86.46% and 71.86% inhibition of ulcer in standard ranitidine and K-PEI-BL nano-hydrogel treatment groups, respectively. This research study concluded that K-PEI-BL nano-hydrogel formulation with 15mg/kg dose exhibited anti-ulcer actions by reducing the severity of gastric abrasions.

A Network Meta-Analysis of Randomized Controlled Trials on the Comparative Efficacy of Stem Cells Therapy for Diabetic Foot Ulcer Healing

Stem cell therapy in diabetic foot ulcer has emerged as a promising treatment option to promote ulcer healing. This network meta-analysis was undertaken to evaluate how they compete with each other and their ranking with respect to chances of ulcer healing. A systematic search strategy to retrieve data from five databases, were used to identify potential studies. Randomized controlled trial or clinical controlled trial, published in English, using any type of stem cells as intervention in individuals aged over 18 years diagnosed with diabetic foot ulcers were included. This network meta-analysis was performed using frequentist method using R version 4.2.1. Eighteen clinical trials were included in the study which included 13 interventions. The study found that most of the stem cells were significantly promoting ulcer healing chances with human viable wound matrix (hVWM) [RR 2.91; CI: 1.28, 6.64], peripheral blood mononuclear cells (PBMNC) [RR 2.35; CI: 1.21, 4.55], bone marrow mesenchymal stem cells (BMMSCs) [RR 2.20; CI: 1.34, 3.60], were top three stem cell options among all. P score also suggested the same. Risk of bias study suggested that there was “some concern or “high risk’’ among majority of studies. It is evident from this study that bone marrow mononuclear cells were found to be most effective in wound healing in cases of diabetic foot ulcer in that order. Though there was no significant difference between these and more studies were required to ascertain whether they differ in term of efficacy for the clinical outcome of ulcer healing.

Effectiveness Evaluation of Microneedling Therapy for Diabetic Ulcer: An Animal Model Study

Effectiveness Evaluation of Microneedling Therapy for Diabetic Ulcer: An Animal Model Study

Efficacy and Safety of Long-Term Administration of Esomeprazole in Japanese Pediatric Patients Aged 1-14 Years with Chronic Gastric Acid-Related Disease.

To evaluate prolonged esomeprazole use in Japanese pediatric patients for reflux esophagitis (RE) maintenance therapy and prevention of gastric (GU) and/or duodenal ulcers (DU) while using non-steroidal anti-inflammatory drugs (NSAIDs) or low-dose aspirin (LDA). This multicenter, open-label, parallel-group, phase III study (NCT03553563) included patients who were administered esomeprazole according to body weight (10 mg/day [Groups 1 and 3] and up to 20 mg/day [Groups 2 and 4] for patients weighing 10-20 kg and ≥20 kg, respectively). Efficacy outcomes for Groups 1 and 2 (maintenance therapy for healed RE) and Groups 3 and 4 (prevention of long-term NSAID/LDA use-associated GU/DU) were the presence/absence of RE relapse and GU/DU recurrence, respectively. Esomeprazole as maintenance therapy was associated with a low RE recurrence rate, independent of body weight or dosage. Recurrence rates of RE were 0.0% and 5.3% for Groups 1 and 2, respectively. In patients previously diagnosed with GU and/or DU due to long-term NSAID/LDA use, the recurrence rates of GU/DU during weeks 0-32 were 11.1% and 0.0% in Groups 3 and 4, respectively. Long-term use of 10- or 20-mg, once-daily esomeprazole demonstrated a favorable benefit-risk balance in preventing RE and suppressing recurrence of GU and/or DU secondary to NSAID or LDA therapy in Japanese pediatric patients. No new safety concerns were identified. Esomeprazole may be a viable option for managing RE and preventing GU and DU in Japanese pediatric patients.

Infectious and Inflammatory Microenvironment Self-Adaptive Artificial Peroxisomes with Synergetic Co-Ru Pair Centers for Programmed Diabetic Ulcer Therapy.

Complex microenvironments with bacterial infection, persistent inflammation, and impaired angiogenesis are the major challenges in chronic refractory diabetic ulcers. To address this challenge, a comprehensive strategy with highly effective and integrated antimicrobial, anti-inflammatory, and accelerated angiogenesis will offer a new pathway to the rapid healing of infected diabetic ulcers. Here, inspired by the tunable reactive oxygen species (ROS) regulation properties of natural peroxisomes, this work reports the design of infectious and inflammatory microenvironments self-adaptive artificial peroxisomes with synergetic Co-Ru pair centers (APCR) for programmed diabetic ulcer therapy. Benefiting from the synergistic Co and Ru atoms, the APCR can simultaneously achieve ROS production and metabolic inhibition for bacterial sterilization in the infectious microenvironment. After disinfection, the APCR can also eliminate ROS to alleviate oxidative stress in the inflammatory microenvironment and promote wound regeneration. The data demonstrate that the APCR combines highly effective antibacterial, anti-inflammatory, and provascular regeneration capabilities, making it an efficient and safe nanomedicine for treating infectious and inflammatory diabetic foot ulcers via a programmed microenvironment self-adaptive treatment pathway. This work expects that synthesizing artificial peroxisomes with microenvironments self-adaptive and bifunctional enzyme-like ROS regulation properties will provide a promising path to construct ROS catalytic materials for treating complex diabetic ulcers, trauma, or other infection-caused diseases.

Innovative Self Nano‐Emulsifying Drug Delivery Systems for Peptic Ulcer Therapy: A Review

AbstractPeptic ulcer disease (PUD) adversely affects ≈4 million individuals globally and remains pervasive among 5–10% of the general population. Mucosal lesions prompted by the ulceration lead to the penetration through mucosal layers, ultimately resulting in cavity formation and inflammation. Conventional therapeutic modalities for peptic ulcers have shown unfavorable effects, relapses, and numerous drug interactions. The genesis of gastric ulcers is catalyzed via an imbalanced interplay between environmental lesions, defensive mechanisms, and the restoration of gastric mucosa. Lipid based nanotechnology involved in self‐nanoemulsifying drug delivery system (SNEDDS) is being tremendously involved in opening avenues in innovative pharmaceutical delivery systems in terms of improving solubility and regenerative healing against peptic ulcers. Biological macromolecules can be incorporated into SNEDDS to embellish the drug delivery system on an advanced level. Herein, in this review, the potential of SNEDDS as a viable carrier for administering biomacromolecules for regenerative healing in ulcers is discussed in detail.

Protocolized Foot Exercises Help in Improvement of Diabetic Foot Ulcers and Quality of Life When Added to Standard Therapy-A Randomized Clinical Trial.

Diabetic foot disease is the major cause of nontraumatic limb amputations worldwide causing a high socioeconomic and psychological toll and a huge burden to the healthcare system. Currently, standard treatment of diabetic foot ulcer is through multidisciplinary therapy. Foot exercises have been shown to improve healing in diabetic ulcers although evidence is limited and applicability is non-uniform. Our study aimed to generate more evidence regarding the benefit of addition of protocolized foot exercises so that it can be instituted as a standard of care. It was an open label Randomized controlled trial with seventy-two patients and study duration of one and half years Patients with diabetic foot ulcers were randomized into two groups. Both groups received standard therapy for diabetic foot ulcer. The intervention group in addition received three months of protocolized foot exercises. At the end of three months ulcer healing and quality of life were m compared among both the groups. Regular exercises for three months caused significant reduction in ulcer area compared to the non-intervention group [100% versus 45.22%, 95% CI =36.30(16.04-56.56), P-value = 0.001]. Quality of life analyzed by SF-36 score showed significant improvement in components like physical function [69.4 ± 8.9 versus 63.7 ± 11.0, 95% CI = 5.73 (0.97-10.48), P-value = 0.01], emotional well-being [65.2 ± 7.6 versus 60.8 ± 7.9, 95% CI = 4.44 (0.79-8.10), P-value = 0.01], and pain components [55.4 ± 18.5 versus 47.5 ± 14.5, 95% CI = 7.99 (0.16-15.81), P-value = 0.04) at 3 months although change in social functioning, physical health limitation, health change, energy and general health improvement were not significant. Addition of protocolized foot exercises are beneficial for patients of diabetic foot ulcers in terms of ulcer healing as well as improvement of quality of life provided compliance to exercises can be ensured.

Outpatient regenerative therapy of a chronic diabetic foot ulcer with exposed bone surface

BACKGROUND: Treatment of deep chronic wounds with the bone tissue involvement against the background of lower limb atherosclerosis and diabetic foot syndrome does not fit any reasonable hospital stay duration and at the same time has no effective outpatient methods. Therapy with conditioned medium derived from human mesenchymal stem cells (CM-MSC) may be a solution for this problem. CLINICAL CASE DESCRIPTION: Patient F., 77-year-old, arrived for an outpatient treatment of local necrosis in the area of the 1st toe of the left foot in April, 2022. The main diagnosis: Peripheral arterial disease of the lower extremities. Multifocal atherosclerosis. Occlusion of the superficial femoral and popliteal arteries, diffuse lesions of the lower leg arteries on the left. Chronic arterial insufficiency of the 4th degree. Attempts of revascularisation of the left lower limb. Limited gangrene (Wagner IV) of the 1st toe of the left foot. Associated diseases: insulin-dependent type 2 diabetes mellitus (for more than 30 years). Diabetic polyneuropathy. Diabetic foot syndrome, neurotrophic form. Local treatment was performed by the microsurgical debridement of the affected surface in combination with the method of multilayered dressings, according to the previously patented technology. The microsurgical treatment of the bone surface in the wound area was carried out with the use of CM-MSC. Positive dynamics in the form of a partial closure of the bone fragment with soft tissue was observed on the sixth month of therapy. The complete closure of the open bone fragment was observed in 12 months from the beginning of the outpatient treatment. CONCLUSION: The developed method of treatment using CM-MSC can be effective for chronic wounds with open bone surfaces.

Oriented cellulose hydrogel: Directed tissue regeneration for reducing corneal leukoplakia and managing fungal corneal ulcers

Fungal corneal ulcer is one of the leading causes of corneal blindness in developing countries. Corneal scars such as leukoplakia are formed due to inflammation, oxidative stress and non-directed repair, which seriously affect the patients' subsequent visual and life quality. In this study, drawing inspiration from the oriented structure of collagen fibers within the corneal stroma, we first proposed the directional arrangement of CuTA-CMHT hydrogel system at micro and macro scales based on the 3D printing extrusion method combined with secondary patterning. It played an antifungal role and induced oriented repair in therapy of fungal corneal ulcer. The results showed that it effectively inhibited Candida albicans, Aspergillus Niger, Fusarium sapropelum, which mainly affects TNF, NF-kappa B, and HIF-1 signaling pathways, achieving effective antifungal functions. More importantly, the fibroblasts interacted with extracellular matrix (ECM) of corneal stroma through formation of focal adhesions, promoted the proliferation and directional migration of cells in vitro, induced the directional alignment of collagen fibers and corneal stromal orthogonally oriented repair in vivo. This process is mainly associated with MYLK, MYL9, and ITGA3 molecules. Furthermore, the downregulation the growth factors TGF-β and PDGF-β inhibits myofibroblast development and reduces scar-type ECM production, thereby reducing corneal leukoplakia. It also activates the PI3K-AKT signaling pathway, promoting corneal healing. In conclusion, the oriented CuTA-CMHT hydrogel system mimics the orthogonal arrangement of collagen fibers, inhibits inflammation, eliminates reactive oxygen species, and reduces corneal leukoplakia, which is of great significance in the treatment of fungal corneal ulcer and is expected to write a new chapter in corneal tissue engineering.

Adjuvant Therapy Effect of Curcuma Longa Rhizome Extract On TGF-β Serum Levels in Leprosy Ulcer Patients

Leprosy ulcer is one of the worsening manifestations of leprosy that often causes disability if not appropriately handled. Healing of ulcers requires a long enough duration so that a good immunological response is needed to encourage the wound healing process, one of which is transforming growth factor- (TGF-), which is necessary of the plants that plays a role in the expression of TGF- to spur wound healing is Curcuma longa rhizome or turmeric rhizome. This study is expected to prove that administering Curcuma longa rhizome extract can increase serum TGF-β levels in leprosy ulcer patients. This study is an experimental study with a pre and post-randomised single-blind controlled trial design involving 22 subjects with leprosy ulcers. The control group obtained standard therapy for leprosy ulcers, and the treatment group received standard therapy and adjuvant Curcuma longa rhizome extract at a dose of 1 g per day for 30 days. TGF-β levels were measured by the ELISA method. Data analysis used the Wilcoxon test and the Mann-Whitney test. The results showed no significant difference in TGF-β levels after and before the intervention in the control group (p=0.79) and the treatment group (p=0.14). However, there was a significant difference in TGF-β levels after the intervention in the control group and treatment (p=0.01). Curcuma longa rhizome extract did not show an important role in changes in serum TGF-β levels in leprosy ulcer patients. This study showed that administering Curcuma longa rhizome extract for 1 month did not show a potential role as an adjuvant therapy. Leprosy ulcer is one of the worsening manifestations of leprosy that often causes disability if not appropriately handled. Healing of ulcers requires a long enough duration so that a good immunological response is needed to encourage the wound healing process, one of which is transforming growth factor- (TGF-), which is necessary of the plants that plays a role in the expression of TGF- to spur wound healing is Curcuma longa rhizome or turmeric rhizome. This study is expected to prove that administering Curcuma longa rhizome extract can increase serum TGF-β levels in leprosy ulcer patients. This study is an experimental study with a pre and post-randomised single-blind controlled trial design involving 22 subjects with leprosy ulcers. The control group obtained standard therapy for leprosy ulcers, and the treatment group received standard therapy and adjuvant Curcuma longa rhizome extract at a dose of 1 g per day for 30 days. TGF-β levels were measured by the ELISA method. Data analysis used the Wilcoxon test and the Mann-Whitney test. The results showed no significant difference in TGF-β levels after and before the intervention in the control group (p=0.79) and the treatment group (p=0.14). However, there was a significant difference in TGF-β levels after the intervention in the control group and treatment (p=0.01). Curcuma longa rhizome extract did not show an important role in changes in serum TGF-β levels in leprosy ulcer patients. This study showed that administering Curcuma longa rhizome extract for 1 month did not show a potential role as an adjuvant therapy.

A Case of Successful Maggot Debridement Therapy for A Refractory Ulcer After Posterior Cervical Vertebroplasty

A Case of Successful Maggot Debridement Therapy for A Refractory Ulcer After Posterior Cervical Vertebroplasty

Development and Evaluation of a Novel Herbal Anti-Ulcer Gel Formulation Incorporating Bauhinia Racemosa Extract

This research paper focuses on the development and testing of an anti-ulcer gel containing Bauhinia Racemosa extract that is specifically designed for the treatment of mouth ulcers. The study's goal is to overcome the limits of current treatment choices by offering a natural and effective alternative for people suffering from mouth ulcers. The research aims include developing an anti-ulcer gel based on Bauhinia Racemosa extract, assessing its efficacy and safety, and adding to existing knowledge on ulcer treatment. The gel formulation combines Bauhinia Racemosa's distinct phytochemical composition, including flavonoids, tannins, and saponins, which are thought to have anti-inflammatory, antibacterial, and wound-healing activities. The anti-ulcer gel's efficacy will be evaluated using a variety of criteria, including pain reduction, ulcer healing promotion, and relief of oral discomfort associated with mouth ulcers. Safety and tolerability will be extensively investigated to guarantee that there are no negative side effects. The study will also investigate the probable processes by which the gel exerts its anti-ulcer properties. The anti-ulcer gel's effectiveness will be determined by comparing it to existing conventional therapies for mouth ulcers. The long-term impact and recurrence rates of mouth ulcers treated with the gel will also be studied. The purpose of this research is to contribute to the scientific literature on natural products for the treatment of mouth ulcers by making evidence-based recommendations for the use of anti-ulcer gel in clinical practice. The study will also highlight topics for future research and development of natural products for treating mouth ulcers. This research report aims to improve the quality of life for those suffering from mouth ulcers by offering a safe, effective, and natural treatment option.

Diagnostics and Treatment of Peptic Ulcer in Adults (Clinical Guidelines of the Russian Gastroenterological Association, the Russian Society of Colorectal Surgeons, the Russian Endoscopic Society and the Scientific Society for the Clinical Study of Human Microbiome)

Aim. The guidelines set out the modern methods of diagnostics and treatment of peptic ulcer and are created for gastroenterologists, primary care physicians, general practitioners, surgeons, endoscopists.Key points. The clinical guidelines contain modern views on the etiology and pathogenesis of peptic ulcer, its clinical features, methods of laboratory and instrumental diagnostics, the main approaches to conservative and surgical treatment. They include the criteria for assessment of the quality of medical care, the algorithm of the doctor's actions, as well as information for the patient.Conclusion. Knowledge of modern methods of diagnostics and therapy of peptic ulcers will contribute to improving the results of its treatment.

Healing activity of a muco-adhesive formula of Teucrium polium against acetic acid-induced oral ulcer in rats

Oral ulcers are highly common painful conditions that harmfully affect the quality of life and require long-term therapy. Muco-adhesive preparations provide efficient and convenient delivery systems that prolong the drug retention time necessary for the different stages of ulcer healing. Therefore, the study aimed to evaluate the healing activity of Teucrium polium in a muco-adhesive formula against acetic acid-induced oral ulcers in rats. Acetic acid was applied to the inner cheeks of the rats and the muco-adhesive formula was applied once daily for 14 days. Acetic acid was found to disrupt the oral tissue histological features, increase collagen deposition, induce oxidative stress through increasing malondialdehyde (MDA) levels and decreasing superoxide dismutase and catalase activities, increase the expression of the inflammatory biomarkers, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), cyclooxygenase-2 (COX-2), and decreased hydroxyproline content and the expression of the factors that contribute in wound healing including transforming growth factor-beta1 (TGF-β1), vascular endothelial growth factor receptor 1 (VEGFR1), and platelet-derived growth factor receptor beta (PDGFRβ). However, the daily application of a mucoadhesive formula impregnated with T. polium, significantly restored the regular histological features of the oral tissue, decreased the concentration of MDA, TNF-α, IL-6, and COX-2, increased superoxide dismutase and catalase activities, and restored the expression of TGF-β1, VEGFR1, and PDGFRβ. Therefore, T. polium extract muco-adhesive formula can be considered a potential therapy for chronic oral ulcers.

NR1I2 as a core biological target in chronic venous ulcer tissues treated with ultrasound therapy.

Ultrasound therapy is a method of applying ultrasonic energy to the stimulation produced by human body to change the function and tissue state of the body in order to achieve the purpose of treating diseases. Chronic venous ulcer is a common chronic skin ulcer. GSE222503 for ultrasound therapy of chronic venous ulcers was downloaded from gene expression omnibus database, which were used to identify differentially expressed genes. Weighted gene co-expression network analysis, functional enrichment analysis, gene set enrichment analysis, immune infiltration analysis and construction and analysis of protein-protein interaction network were performed. Draw gene expression heatmaps. Comparative toxicogenomics database analysis was performed. Two hundred thirty-five differentially expressed genes were obtained. According to gene ontology analysis, in biological process analysis, they were mainly enriched in positive regulation of cellular biosynthetic process, reproductive cell development, vasculogenesis, vascular morphogenesis, and inflammatory response. In cellular component analysis, they were mainly enriched in leading edge of growing cell, extracellular matrix binding organelle, F-actin capping protein complex. In molecular function analysis, they were mainly concentrated in receptor ligand activity, cytokine receptor binding. In Kyoto encyclopedia of genes and genomes analysis, they were mainly enriched in cytokine-cytokine receptor interaction, PI3K-Akt signaling pathway, HIF-1 signaling pathway, heme biosynthesis. In weighted gene co-expression network analysis, the soft threshold power was set to 9. Thirty modules were generated. PF4, NR1I2, TTC16, H3C12, KLRB1, CYP21A2 identified by 4 algorithms (MCC, EPC, closeness, stress). Heatmap of core gene expression showed that H3C12, KLRB1, PF4, NR1I2 were all underexpressed in samples of ultrasound-treated chronic venous ulcers and overexpressed in samples of untreated chronic venous ulcers. Comparative toxicogenomics database analysis showed that H3C12, KLRB1, PF4, NR1I2 are associated with thrombophlebitis, phlebitis, vascular malformations, metabolic syndrome, ulcers, and inflammation. In samples of chronic venous ulcer tissue treated with ultrasound, NR1I2 shows low expression, while in samples of chronic venous ulcer tissue without ultrasound treatment, it shows high expression. This finding suggests a potential role of NR1I2 in the process of ultrasound therapy for chronic venous ulcers, which may be related to the therapeutic effect of ultrasound therapy on chronic venous ulcers.

Cutting-edge Nanotechnology Approaches in Peptic Ulcer Therapy

Abstract: The ulcer is a chronic disease that penetrates the gastrointestinal tract and produces a deep lesion. One type of ulcer is peptic ulcer, which leads to the development of a lesion on the lining (mucosa) of the digestive tract. Various drugs are used for the treatment, including antibiotics, but don't provide correct eradication, so for the excellence in therapeutic value and decreasing side effects, nanotechnology is being used. Nanotechnology is a technique that is nowadays used in trend because of its outstanding efficacy and also its effect at both cellular and molecular levels. Based on this technology, nanoparticles are used for the treatment of peptic ulcers. This review focuses on the treatment approaches for peptic ulcers by using nanotechnology. Some nanoparticles used in the treatment of Helicobacter pylori (H. pylori) are metallic nanoparticles, polymeric nanoparticles, targeting nanoparticles, and a new technology arrived is membrane coated nanoparticles, which are very advantageous for H. pylori treatment. The purpose of this review is to overview and gain attention to the limitations in treatment (like antibiotic resistance) and also the new strategies to overcome them and enhance the properties of nanoparticles to produce the anti-bacterial effect. This development helps in the treatment of H. pylori.

How does atmospheric pressure cold helium plasma affect the biomechanical behaviour on alkali-lesioned corneas?

BackgroundMelting corneal ulcers are a serious condition that affects a great number of animals and people around the world and it is characterised by a progressive weakening of the tissue leading to possible severe ophthalmic complications, such as visual impairment or blindness. This disease is routinely treated with medical therapy and keratoplasty, and recently also with alternative regenerative therapies, such as cross-linking, amniotic membrane transplant, and laser. Plasma medicine is another recent example of regenerative treatment that showed promising results in reducing the microbial load of corneal tissue together with maintaining its cellular vitality. Since the effect of helium plasma application on corneal mechanical viscoelasticity has not yet been investigated, the aim of this study is first to evaluate it on ex vivo porcine corneas for different exposition times and then to compare the results with previous data on cross-linking treatment.Results94 ex vivo porcine corneas divided into 16 populations (healthy or injured, fresh or cultured and treated or not with plasma or cross-linking) were analysed. For each population, a biomechanical analysis was performed by uniaxial stress-relaxation tests, and a statistical analysis was carried out considering the characteristic mechanical parameters. In terms of equilibrium normalised stress, no statistically significant difference resulted when the healthy corneas were compared with lesioned plasma-treated ones, independently of treatment time, contrary to what was obtained about the cross-linking treated corneas which exhibited more intense relaxation phenomena.ConclusionsIn this study, the influence of the Helium plasma treatment was observed on the viscoelasticity of porcine corneas ex vivo, by restoring in lesioned tissue a degree of relaxation similar to the one of the native tissue, even after only 2 min of application. Therefore, the obtained results suggest that plasma treatment is a promising new regenerative ophthalmic therapy for melting corneal ulcers, laying the groundwork for further studies to correlate the mechanical findings with corneal histology and ultrastructural anatomy after plasma treatment.