Articles Related to tissue

Superficial CD34-positive fibroblastic tumor is an infrequent soft-tissue tumor characterized by a lesion located in the subcutaneous fascia without affecting the soft or deep muscle planes. Its incidence is unknown; therefore, it represents a diagnostic challenge for both the surgical oncologist and pathologist. Given its high risk of local recurrence, extensive surgical resection is the recommended treatment modality. This is the first report of this rare entity in Latin-America.

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Abstract Background: Clinical studies demonstrated the efficacy of therapies based on the autologous grafting of adult mesenchymal stem cells to accelerate the healing and regenerative processes of the skin and mesenchymal tissues therefore, this is considered a valuable approach in the aesthetic rejuvenation treatment to give volume restoration and skin regeneration effects. Objective: The aim of this project consists of the evaluation of the cell viability of adipose tissue (AT) harvested using the Superficial Enhanced Fluid Fat Injection (SEFFI) procedure standardized by the Authors (AG, FPB). The harvesting procedure was performed using two different cannulas having 0.8 mm and 1 mm side-port holes, respectively. Cells phenotype and ability to adhere to the plastic surface have been analysed. The results have been compared to those recorded in adipose tissue harvested using a liposuction system and processed with enzymatic digestion (collagenase). Methods: This study was performed on adipose tissues harvested from 7 patients (6 females and 1 male) with an average age of 48.5 years with two different techniques and three different cannulas. We compared the cell vitality of every sample at T0 and T72. Moreover, the samples were analysed to determine the phenotype: cells were incubated with antibodies anti human against CD90-FITC, CD73-PeCy7, CD44-PE, CD31-PECy5, CD235a- PECy7, CD34-FITC, CD45-FITC and CD146-FITC and read using the flow cytometer s3e Cell Sorter, BioRad. Results were analysed using the software Flow Jo.

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Weight loss is an efficient therapy for obese polycystic ovary syndrome (PCOS) patients. Here we evaluate the effect of dietary weight reduction on clinical performance in obese PCOS patients. Medical records of fifty obese PCOS patients (age 27 ± 5 years) who had calorie-controlled dietary intervention were reviewed. The patients had a 1200-kcal/day diet until ovulation or for up to three months. Changes in body weight, body mass index (BMI), blood pressure, menstruation, acne, and hirsutusm, serum levels of endocrine hormones and adipocytokines, glucolipid metabolism index and insulin resistance were assessed. Menstrual cycle, ovulation andrelapse in the following six months were also reviewed. All patients had menstrual disorder, 43 had acne, and 26 were hirsute. After weight loss, the BMI decreased from 27.89 ± 3.06 to 25.70 ± 2.42 kg/m2 (p < 0.001). Acne and hirsutusm was improved in 39 and 14 patients, respectively. Regular menstruation was restored in 26 patients and lasted for 3.12 months on average. Endocrine hormones levels, adipocytokines levels, glucolipid metabolism and insulin resistance were shifted toward balance. Weight relapse was seen in 11 patients. No side effects occurred. Dietary intervention in obese PCOS patients can improve relevant clinical problems but weight relapse is an issue

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Giant cell arteritis (GCA) requires prompt diagnosis as clinical indicators of GCA are non-specific. Temporal artery biopsy (TAB) can be inconclusive and difficult to arrange timely. MR imaging is accurate for showing vessel thickening. However, the availability of MRI remains an issue in many radiology departments.

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Patients admitted to the emergency room or intensive care units (ICUs) need real-time monitoring of body oxygen balance. As of today, the availability of monitoring devices that provide real-time data on tissue level of oxygen homeostasis is very limited. The involvement of mitochondrial dysfunction in many pathological states such as stroke, sepsis or heart failure is calling for a real-time evaluation of this intracellular organelle. In order to avoid the deterioration of the most vital organs in the body (brain and heart), we are proposing to monitor a less vital organ, such as the urethral wall, that serves as an early warning signal for the deterioration of body oxygen balance.

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The focus of this research is aimed specifically at the application of near-infrared spectroscopy (NIRS) in exercise and sport science. NIRS is able to monitor the performance of muscle and cerebral tissue and evaluate their role during physical activity. By monitoring tissue oxygenation, an NIRS device is useful in several areas, which may benefit from its applications.

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We present a case report of a patient with Mounier-Kuhn syndrome. The clinical, radiological and endoscopic illustrations contribute to the awareness and recognizability of this rare and under-diagnosed pulmonary syndrome. It is characterized by tracheobronchomegaly and tracheomalacia, leading to ineffective mucociliary clearance, recurrent respiratory infections and bronchiectasis. Computed tomography is the golden standard for diagnosis. Etiology remains unknown. Prognosis depends on adequate treatment and prevention of respiratory infections.

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A 39-years-old Caucasian man presented with the complaint of gingiva bleeding during tooth brushing. Additionally, generalised intrinsic blue-brown discoloration or hyperpigmentation of the gingiva was noticed. Upon request to report each alteration of life style and food and drink consumption during the last months, the patient reported weekly subcutaneous self-injections with Melanotan® during the last six months in order to realize a cosmetically attractive brown skin color. Melanotan I®, with the generic name afamelanotide, is thought to mimic the effects of endogenous α-melanocyte stimulating hormone, leading to increased cutaneous pigmentation. It was suspected that this drug also has the adverse effect of up-regulation of brown-black eumelanin synthesis in the oral soft tissues. Several cutaneous adverse effects of afamelanotide have been reported in the scientific literature, but no previous reports could be found on discoloration of the oral soft tissues.

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Endothelial heterogeneity reflects many functions performed by endothelial cells (ECs) in various tissues. However, the origin of this heterogeneity is unclear. Here, we report that tissue-specific ECs in lungs, brain, and liver co-expressed the lineage markers of their coordinating tissue-specific cells at very early stages. Specifically, we found that the pulmonary EC population was significantly suppressed after pulmonary epithelial-specific (Nkx2.1-Cre mediated) deletion of fetal liver kinase-1 (Flk1). Together, the results suggest that tissues-specific ECs may originate from the same progenitor cells as tissue-specific cells.

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Current cancer treatments by immune checkpoint blockades are limited due to severe adverse events caused by alteration of the immune system required for homeostasis of normal tissues. Common cancer chemotherapy alters the quality of patients’ lives. Platinum-based treatment can lead to severe neurotoxicity with chronic debilitation. Additionally, survival of patients with epithelial ovarian cancers (EOCs) has remained poor despite extensive cytoreductive surgery, high dose chemotherapy, checkpoint blockades and immunotherapies effective in some other types of cancer. The pathobiology of EOC cancer stem cells (CSCs) is not well understood. Observations demonstrate that EOCs exhibit in vivo two distinct CSC types - perivascular diploid CSCs dividing asymmetrically with the help of the host suicidal CD8+ T cells, and haploid CSCs at the cancer abdominal surface originating from meiosis I cytokinesis of bulk surface cancer cells. The perivascular CSCs contribute to the cancer cell bulk and, via left ovary venous blood, can cause EOC liver metastases. Haploid CSCs released from the bulk cancer surface cause the common pelvic and abdominal EOC spread. Former elimination of the host antibodies blocking T cell effectors by intermittent doses of cyclophosphamide exhibiting significant immunomodulatory anticancer effects, facilitation of the immune system reactivity against alloantigens of cancer cells by blood transfusions, and augmentation of anticancer immunity by bacterial toxins, resulted during the subsequent treatment-free period into rejection of inoperable EOCs without any adverse events during the treatnment. To help prevent cancer relapses, patients treated for advanced primary epithelial cancers should be considered as candidates for continuously stimulating immune anticancer activity by treatments such as daily metformin and weekly lentinan consumptions.

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An 11-year-old spayed female dog was presented for a large mass on the left proximal pelvic limb. The mass appeared three months prior to presentation in the location of a previous corticosteroid injection, Kenalog (0.05 mg/kg triamcinolone, CAS# 76-25-5). No vaccinations or injections had been previously given in this area. The mass spanned from the left stifle to the coxofemoral joint and was firm, circular, non-moveable, and diffusely mixed within the musculature of the thigh. A left external complete hemipelvectomy was performed. Histopathology was consistent with a Grade III fibromyxosarcoma. The dog died naturally at home five months after surgery. This is the first account of association of a corticosteroid injection with formation of a fibromyxosarcoma in a dog.

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Background: Echocardiography and lung ultrasound are important tests for assessing left the ventricular function in patients presented to the emergency department with acute pulmonary edema. Chest ultrasound is becoming an important tool in diagnosing acute pulmonary edema. Aim: To investigate the relationship between the B profile on ultrasound chest and Spectral tissue Doppler echocardiography (E/e’ratio) in patients presented with the suspicion of acute pulmonary edema. Methods: This paper reports a prospective observational study of 61 consecutive patients, which was presented with symptoms and signs of pulmonary edema and B - profile detected by echocardiography with a 5 MHz curvilinear probe. Critical care physicians trained in ultrasound examination performed echocardiography and chest ultrasounds.

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This study was conducted to investigate the immunohistochemical localization of ghrelin and IGF-I in the liver and kidney tissues in melatonin-treated rats. Rats were divided into three groups as a control, a sham and a treatment groups. While the treatment group received melatonin (10 mg/kg i.p.) for 3 weeks, only ethanol and saline solution were administered to the sham group. The control group received nothing.

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In recent years, increasing evidence has pointed to the potential role of fibrinolysis in the pathogenesis of MS. Based on hypotheses describing the aggressive autoimmune responses observed in MS patients, a result of impaired between (t-PA and PA1-1) which are a key molecules in both fibrinolysis and extracellular proteolysis. The present study was done to investigate the therapeutic potential of polymerase enzyme in modulating the changes occurred between levels of Tissue- type plasminogen activator (t-PA) and its inhibitor (PAI-1) in patients with multiple sclerosis. A pilot study was carried out on a total of twenty-one patients (17 females, 4 males; aged 22-46 years) with demyelination suggestive of MS and clinically silent T2 brain lesions on magnetic resonance imaging (MRI).

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Buccal mucosal urethroplasty has revolutionized the surgical management of urethral strictures but the success of the procedure has been variable in different series. We have attempted to understand the interplay between buccal mucosal epithelial cells (BME) and the fibroblasts at the molecular level using connective tissue growth factor (CTGF) as a marker so that translation of this information would help in better urethroplasty outcomes. Materials and Methods: The morphological and functional characteristics of normal urethral fibroblasts (NUF) and urethral stricture fibroblasts (UStF) with and without co-culture with BMEs are compared. The intracellular and extracellular level of CTGF expression in the UStF co-cultured with BMEs was analyzed by using molecular biology methods.

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