Recent Advances in the Use of Stem Cells in Tissue Engineering and Adjunct Therapies for Tendon Reconstruction and Future Perspectives.

Due to their function, tendons are exposed to acute injuries. This type of damage to the musculoskeletal system represents a challenge for clinicians when natural regeneration and treatment methods do not produce the expected results. Currently, treatment is long and associated with long-term complications. In this review, we discuss the use of stem cells in the treatment of tendons, including how to induce appropriate cell differentiation based on gene therapy, growth factors, tissue engineering, proteins involved in regenerative process, drugs and three-dimensional (3D) structures. A multidirectional approach as well as the incorporation of novel components of the therapy will improve the techniques used and benefit patients with tendon injuries in the future.

The effect of plasma cytokines on the expression of adiponectin and its receptors in the synovial membrane of joints and the infrapatellar fat pad in patients with rheumatoid arthritis and osteoarthritis.

BACKGROUND: Rheumatoid arthritis (RA) is an autoimmune inflammatory disease that leads to joint destruction. Numerous pro-inflammatory mediators, including adipokines, play an important role in the pathogenesis of RA. OBJECTIVE: The aim of the study was to investigate the relationships between selected plasma cytokines and expression of adiponectin and its receptors in the synovium and the infrapatellar fat pad in patients with RA and osteoarthritis (OA). METHODS: Blood, synovium and fat pad samples from 18 patients with RA and 18 with OA were collected during joint replacement surgery. Spearman rank correlations between plasma concentrations of selected cytokines (IL-1ß, IL-2, IL-4, IL-6, IL-7, IL-8, IL-10, IL-12 p40, IL-13, IL-17, G-CSF and GM-CSF) and the expression of adiponectin and its receptors were determined. Plasma levels of cytokines were determined using a magnetic bead-based multiplex assay, mRNA expression of adiponectin and its receptors were determined by real-time PCR. RESULTS: In OA patients, there were significant positive correlations between adiponectin expression in the synovial membrane and plasma levels of IL-1ß, IL-4, G-CSF and GM-CSF, as well as a significant positive correlation between adiponectin expression in the fat pad and plasma levels of GM-CSF. In addition, OA patients showed significant negative correlations between AdipoR1 and AdipoR2 expression in the synovial membrane and plasma IL-6 levels, as well as between AdipoR2 expression in the synovial membrane and plasma MCP-1 and TNF-α levels. In patients with RA, there were no significant correlations between adiponectin expression in the synovial membrane and infrapatellar fat pad and plasma levels of the cytokines studied. In addition, RA patients showed a statistically significant negative correlation between AdipoR1 expression in the synovial membrane and plasma levels of TNF-α, IL-7, IL-12 and IL-13, and a significant negative correlation between AdipoR1 expression in the infrapatellar fat pad and plasma levels of IL-1ß. CONCLUSIONS: Adiponectin and its receptors showed the correlations with several plasma cytokines, however, a thorough understanding of the role of adiponectin in RA and OA requires further investigation.

Spermatic vein thrombosis as a rare cause of testicular pain - review of the literature.

Introduction: The authors in this paper discuss a rare disease entity that can cause testicular pain and mimic varicocele. Material and methods: Citing data from a review of the world literature, spermatic cord thrombosis is most often misdiagnosed as an incarcerated inguinal hernia. Patients usually complain of pain and swelling of the testicle, pain in the inguinal region, and sometimes a palpable mass in the inguinal region. Results: Ultrasonography with colour Doppler usually establishes the correct diagnosis. Currently, there are no official recommendations for the treatment of this disease.There are reports of conservative treatment of spermatic cord thrombosis in the world literature. However, it seems that the gold standard of management remains surgical exploration, which allows us to unequivocally establish the correct diagnosis. In cases of co-morbid thrombosis with spermatic cord varicocelectomy is recommended. Conclusions: Due to the rarity of this disease, the topic of this article was undertaken. The paper reviews the world literature relating to the diagnosis and treatment of this disease entity. Our own algorithm for the management of spermatic cord thrombosis is proposed.

The Role of Omentin-1 in Cancers Development and Progression.

Adipose tissue serves as an energy store and is also an active endocrine organ, exerting activity that influences obesity-related processes through the production of regulatory proteins called adipokines or adipocytokines. Adipokines play important direct and indirect roles in the pathogenesis of insulin resistance, the regulation of local and systemic inflammatory processes, and related metabolic complications. There have been an increasing number of studies showing the relationship between some adipokines and carcinogenesis. This work reviews the current literature concerning the effects of omentin-1 on carcinogenesis.

Surgical items retained in the abdominal cavity in diagnostic imaging tests: a series of 10 cases and literature review.

Despite improvements in the safety of surgical procedures, leaving a foreign object in a patient's body is still one of the complications of surgical procedures. The literature lacks an analysis of the effectiveness of specific diagnostic tests in detecting foreign objects. The authors present a discussion of the effectiveness of selected techniques and examples of the appearance of foreign bodies in radiological images based on the description of 10 cases. Leaving surgical haemostatic material in the abdominal or pelvic cavity is an underestimated phenomenon that poses a serious diagnostic problem. Computed tomography is the most sensitive method for detecting a foreign body, while a chest or abdominal X-ray is the simplest and most effective way to identify the surgical material. Ultrasound, although widely available, has not shown utility in diagnosing foreign bodies in our cases. Awareness of this problem is necessary to avoid unnecessary mortality in surgical patients.

The Role of MicroRNA in the Pathogenesis of Diabetic Nephropathy.

Diabetic nephropathy is one of the most common and severe complications of diabetes mellitus, affecting one in every five patients suffering from diabetes. Despite extensive research, the exact pathogenesis of diabetic nephropathy is still unclear. Several factors and pathways are known to be involved in the development of the disease, such as reactive oxygen species or the activation of the renin-angiotensin-aldosterone system. The expression of those proteins might be extensively regulated by microRNA. Recent research suggests that in diabetic nephropathy patients, the profile of miRNA is significantly changed. In this review, we focus on the actions of miRNA in various pathways involved in the pathogenesis of diabetic nephropathy and the clinical usage of miRNAs as biomarkers and therapeutic targets.

The Role of Adipokines in the Pathogenesis of Psoriasis.

Psoriasis is a chronic and immune-mediated skin condition characterized by pro-inflammatory cytokines and keratinocyte hyperproliferation. Dendritic cells, T lymphocytes, and keratinocytes represent the main cell subtypes involved in the pathogenesis of psoriasis, while the interleukin-23 (IL-23)/IL-17 pathway enhances the disease progression. Human adipose tissue is an endocrine organ, which secretes multiple proteins, known as adipokines, such as adiponectin, leptin, visfatin, or resistin. Current evidence highlights the immunomodulatory roles of adipokines, which may contribute to the progression or suppression of psoriasis. A better understanding of the complexity of psoriasis pathophysiology linked with adipokines could result in developing novel diagnostic or therapeutic strategies. This review aims to present the pathogenesis of psoriasis and the roles of adipokines in this process.

Minimally invasive and invasive liver surgery based on augmented reality training: a review of the literature.

A liver surgeon's knowledge of anatomy is critical. Due to the patient's small field of vision, patient specific, complex nerve system, and other factors, even a minor loss can result in irreversible damage. Surgeons could benefit from the use of augmented reality (AR) technology, which would bring three-dimensional image data into the operating room. AR visualization can improve surgical procedures, facilitate intraoperative planning, and enhance surgical guidance for the anatomy of interest, all of which contribute to the application's minimal invasiveness. This literature review on image guidance in liver surgery provides the reader with information about AR techniques. To ascertain the current state of Augmented reality technology's application in liver surgery, a PubMed and Embase search were conducted using the following keywords: < (Augmented reality) AND (liver surgery) > and < 'Augmented reality' AND 'liver surgery' > (publication date from January 1991 until Jun 2022). The query yielded a total of 205 publications-excluded papers in other languages, virtual reality (VR), and reviews leaving 135 studies for review. After removing duplication, the titles and abstracts of those studies were manually reviewed. Finally, 31 pertinent studies were determined to be pertinent to the subject. Generally, augmented reality technology includes preoperative planning and three-dimensional reconstruction, intraoperative three-dimensional navigation, and registration. Visualization may be aided by virtual three-dimensional reconstruction models of the liver from Computed Tomography/Magnetic Resonance Imaging scans. The results demonstrate that by utilizing augmented reality technology, blood vessels and tumor structures in the liver can be visualized during surgery, allowing for precise navigation during complicated surgical procedures. Augmented reality has been demonstrated to be safe and effective in both minimally invasive and invasive liver surgery. With recent advancements and significant effort by liver surgeons, augmented reality technologies have the potential to increase hepatobiliary surgical procedures dramatically. However, further clinical trials will be necessary to evaluate augmented reality as a tool for reducing post-operative morbidity and mortality. The impact of these cutting-edge computerized image guidance techniques on clinically relevant outcome parameters should be assessed in the future.

Association Study of SLCO1B3 and ABCC3 Genetic Variants in Gallstone Disease.

There is growing evidence that gallstone formation may be genetically determined. Recent studies have shown that polymorphism of genes encoding proteins involved in bile acid transport may be associated with the risk of gallstone disease. The aim of this study was to investigate the association between SLCO1B3 (rs4149117:G>T, rs7311358:A>G) and ABCC3 (rs4793665:T>C, rs11568591:G>A) genetic variants and susceptibility to cholesterol gallstone disease, as well as gallstone composition. The study included 317 patients suffering from cholelithiasis who underwent cholecystostomy and 249 controls with no evidence of stones, confirmed by ultrasound examination. There were no statistically significant differences in the distribution of studied gene polymorphisms between patients with gallstone disease and healthy controls. No significant associations were observed between studied genotypes and the content of analyzed gallstone components: total cholesterol, bilirubin, CaCO3, nor the total bile acids. There was also no association between bile acid content in gallstones and the polymorphisms studied. The results of this study suggest that polymorphisms of SLCO1B3 and ABCC3 genes are not a valuable marker of gallstone disease susceptibility and do not influence gallstone composition.

The effect of cosmetic surgery on mental self-image and life satisfaction in women undergoing breast augmentation: An intermediate role of evaluating the surgery as one of the most important life events.

AIM: To estimate changes in self-perception and satisfaction in women undegoing breast augmentation surgery (BAS). METHODS: Using a quasi-experimental questionnaire study design, we enrolled a cohort of BAS women treated at a private clinic during a 5-year interval. The primary predictor variable was treatment (before/after). The main outcome variables included effect of considering breast augmentation as one of the most important life events on self-image (BAOMILE), and subjective evaluation of physical appearance and life satisfaction. Other study variables were demographic data. The Mann-Whitney and the Wilcoxon signed-rank tests were used to compare the outcomes between before and after the surgery. The Spearman rank correlation and the Pearson chi-squared test were computed to analyze the relationships among variables. RESULTS: The sample consisted of 53 subjects (52.3% married; 40.9% from medium-sized towns) with a mean age of 33.2 ± 6.4 years (range, 21-46). Life satisfaction was significantly increased after BAS in the whole cohort (preop., 7.83 vs. postop., 8.42; P = .003; 95% CI, -0.95 to -0.22) as well as in the BAOMILE subgroup (preop., 7.87 vs. postop., 8.56; P = .011; 95% CI, -1.20 to -0.17). Within the BAOMILE subgroup, there was a positive correlation between the appearance assessment and the number of positive traits before surgery (ρ = 0.63; P = .002; 95% CI, 0.27-0.83) and life satisfaction after surgery (ρ = 0.480; P = .03; 95% CI, 0.06-0.74). CONCLUSIONS: The results of this study suggest that BAS improves self-perception and life satisfaction of the patients. The psychologist's role in understating patient's motivation for cosmetic surgery and the revision of their attitudes towards expected effects require further investigations.

Operative material left in the abdominal cavity during surgical procedures.

The authors present seven cases of surgical drape left in body cavities during surgical operations. The most common symptoms reported by these patients are analysed and the consequences of leaving a foreign body in the abdominal cavity are summarised. In the majority of cases, the time elapsed from the operation to the detection of the foreign body was an average of 17 months. In one case, the foreign body remained in the abdomen for 7 years. The most common symptom reported by patients was abdominal pain. Some patients also developed wound healing disorders with leakage of pus from the wound, fever, nausea and vomiting, weight loss or intermittent tarry stools. In most cases, the foreign body required reoperation to remove it. Major surgery with stoma creation or bowel resection was required. In one case described, the consequence of leaving a surgical drape was the death of the patient. In three cases, there was spontaneous expulsion of the surgical sling by the patient by natural means.

Existing and Novel Biomaterials for Bone Tissue Engineering.

The treatment of bone defects remains one of the major challenges in modern clinical practice. Nowadays, with the increased incidence of bone disease in an aging population, the demand for materials to repair bone defects continues to grow. Recent advances in the development of biomaterials offer new possibilities for exploring modern bone tissue engineering strategies. Both natural and synthetic biomaterials have been used for tissue repair. A variety of porous structures that promote cell adhesion, differentiation, and proliferation enable better implant integration with increasingly better physical properties. The selection of a suitable biomaterial on which the patient's new tissue will grow is one of the key issues when designing a modern tissue scaffold and planning the entire treatment process. The purpose of this article is to present a comprehensive literature review of existing and novel biomaterials used in the surgical treatment of bone tissue defects. The materials described are divided into three groups-organic, inorganic, and synthetic polymers-taking into account current trends. This review highlights different types of existing and novel natural and synthetic materials used in bone tissue engineering and their advantages and disadvantages for bone defects regeneration.

Neuroticism Level and Life Satisfaction in Women Undergoing Breast Augmentation Surgery (a Preliminary Report).

BACKGROUND: The aim of the present study was to verify the relationship between the level of neuroticism and selected aspects of life satisfaction in women undergoing breast augmentation surgery. METHODS: The study group included 109 women, aged 18-46 years, who completed the self-developed survey measuring selected psychological traits before and after (1 year) surgery. Four questions in this survey were related to the level of neuroticism and two pertained to the self-assessment of leading character traits and the level of life satisfaction. Three questions made up the lie scale. RESULTS: The studied women were constant in their truthfulness. No statistically significant difference in the level of neuroticism before and after surgery was noticed. However, an increase in the subjective life satisfaction after surgery was highly significant (p < 0.001). Statistically significant negative correlations of neuroticism level with the self-assessment of positive character traits (rs = - 0.236; p = 0.013) and life satisfaction (rs = - 0.277; p = 0.004) were found before surgery. Also, a significant positive correlation was observed between neuroticism and the change in life satisfaction 1 year after surgery (rs = 0.302; p = 0.001). CONCLUSIONS: Breast augmentation surgery did not affect neuroticism level, which proves that constitutional personality traits in women undergoing such operations are not significantly influenced by a surgical intervention. However, neuroticism may play the role of a modulator of the psychological changes in women after breast augmentation (e.g., an increased postsurgical life satisfaction). The preliminary results obtained in our study should be confirmed on a larger sample size in the future. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Major vascular injury during laparoscopy.

Major Vascular injury during laparoscopy is most deadly complication of laparoscopy. This report is review major vascular injuries based on surgeon's relation and literature. The incidence of MVI is 0,04-0,1%. Extremely important is to learn proper technique of insuflation. According to patient's physique surgeon should consider best technique of insuflation, take caution against slim people, and induct implements with proper angle. We should avoid excesive force during trocar and Verres's needle insertion, we also should avoid redundant movement after Verres needle is inserted in abdomen cavity. Elevation of the anterior abdominal wall at the time of Veress or primary trocar insertion is routinely recomended. Major vascular injury is seriously underestimated problem of laparoscopic operations.

Surgical instrument left inside abdomen.

Leaving surgical instruments in the patient's body is one of the most difficult situations in the professional career of an operator and it can also have severe consequences for the patient. Contrary to world literature, there are no reports of such incidents in Polish publications. Lack of such reports creates an illusion that leaving surgical instruments in the patient's body does not happen in Poland, which is an unsubstantiated thesis. This paper presents two cases of leaving hemostats in the abdominal cavity. According to the authors, similar publications may facilitate critical assessment of the existing rules for inspecting instruments and surgical material by surgical teams. Importantly, confirming the compliance of instruments and material by surgical nurses is not the only criterion of assessment in this matter for the operator.

[Extensive basal cell cancer of the scalp - case reports]. / Rozlegly rak podstawnokomórkowy skóry glowy - opis przypadków.

Basal-cell canceris a slow growing, rarely metastasizes, locally malignant skin cancer. Patients with this neoplasm usually have excellent prognosis. Potentially, in some cases, a good prognosis cause a delay in therapy. Delay or withdrawal from treatment might lead to higher local extension of tumour with the destruction of the surrounding tissue. In this article we are presenting two patients with extensive basal cell cancer. The first patient underwent plastic surgery for extensive basal-cell carcinoma located in the parietal and temporal area. The second patient was observed due to recurrence of extensive basal cell carcinoma in the parietal region. Local advancement of the primary tumor could be a reason for the lack of radicality of surgery. Such advancement is rarely seen nowadays. The cases demonstrate the need for awareness about the possible severe course of the disease.

[Biliary endoprosthesis causing ileal perforation--a case report]. / Perforacja jelita kretego przez przemieszczona endoproteze dróg zólciowych--opis przypadku.

We experienced ileal perforation caused by dislocated biliary endoprosthesis in 59 years old female patient. The endoprosthesis was implanted due to biliary fistula after laparoscopic cholecystectomy 2 years before the perforation. It seems that endoprosthesis dislocation and the perforation were the result of too long stay of endoprosthesis. After the surgical management and the removal of the prosthesis patient was cured. Although ileal perforation caused by dislocated biliary endoprosthesis is rare, clinicians should be aware of the possibility of its occurrence.

Quality of life in patients with venous stasis ulcers and others with advanced venous insufficiency.

The quality of life (QoL) in patients with advanced venous insufficiency (including venous stasis ulcers, skin discoloration, stasis eczema, and lipodermatosclerosis) assessed using the Clinical Etiological Anatomical Pathophysiological (CEAP) and Venous Clinical Severity Score (VCSS) classifications is presented. Also, disease features such as: intensity of pain, edema and inflammatory response that exerted the most profound effect on different domains of QoL are reported. The global QoL in patients with lower leg venous ulcerations was relatively similar to that observed in other patients with chronic venous insufficiency. The presence of venous ulcerations was associated with lower QoL in a Physical domain. Significant correlations were found between pain intensity and the values of Physical, Physiological, Level of Independence and Environmental domains, between edema intensity and Social domain as well as between the intensity of inflammatory response and Physical and Spiritual domains.

Consent for Surgery in View of an Ambigious Court Decision - Case Report.

Guardianship courts seem to issue decisions in case of the need to obtain consent for surgery, amongst other things, when the patient is unable to consciously express written consent, and at the same time does not have a legal representative or a statutory representative does exist, but settlement with him is impossible. The presented study case demonstrated the abnormalities of applying court procedures, as well as the responsibilities and dilemmas posed in front of a surgeon. A specialist surgeon wanted to help the patient and he was able to accomplish his mission.