ABSTRACT
BACKGROUND: Corrosive esophageal strictures are common. The severity of the strictures depends on type, quantity, duration of contact and concentration of the caustic substance ingested. Endoscopic balloon dilation and endoscopic bougienage are a cornerstone in the management of the benign esophageal strictures and are the most widely used treatments, but are expensive and invasive procedures. CASE PRESENTATION: We report the case of an 82-year-old patient with a corrosive esophageal stricture treated for over 40 years by means of home self-bougienage. The procedure has been carried out for the longest lapse of time described in literature, with an excellent control of symptoms. In the case reported, after being carried out for more than 40 years, self-dilation allowed good quality of life and symptoms management, ensuring an excellent nutritional status. CONCLUSIONS: Following an adequate patient training, self-dilatation can be a safe and effective option of treatment, avoiding frequent expensive hospital admissions for endoscopic esophageal dilatation.
Subject(s)
Burns, Chemical/complications , Dilatation/methods , Esophageal Stenosis/therapy , Self Care/methods , Aged, 80 and over , Esophageal Stenosis/chemically induced , Esophagus/injuries , Female , Humans , Nutritional Status , Quality of Life , Recurrence , Suicide, Attempted , Time FactorsABSTRACT
Many of the women newly diagnosed with breast cancer not have access to all the information they need to make the surgical and treatment choices that are most appropriate for them. Research clearly shows that lumpectomy and other breast-conserving surgeries are just as safe as mastectomy for most women with early stage disease, and yet approximately half will undergo the more disfiguring procedures, but many healthy women who have strong family histories of breast cancer consider prophylactic mastectomies, and their decisions are also based on very limited information, because there are few studies showing the effectiveness of that procedure. This paper delineates how to avoid limited information and biased recommendations is important for a conscious and informed choice by the patients.
Subject(s)
Breast Neoplasms/surgery , Mastectomy, Segmental , Patient Education as Topic/legislation & jurisprudence , Decision Making , Female , Humans , Informed Consent/legislation & jurisprudenceABSTRACT
BACKGROUND: Acute respiratory failure is a rare life threatening complication following thyroid surgery and its incidence is reported as high as 0.9%. Clinical presentation of severe acute respiratory failure is characterized by dyspnea, inspiratory airways distress, hypoxia and its standard current management is the orotracheal intubation and safe extubation. In case of persistent distress, tracheotomy is mandatory. The Authors, analysing a large acute respiratory failure clinical series, describe an innovative treatment of this severe condition: the nasotracheal prolonged safe extubation. METHODS: Patients treated at our Intensive Care Unit for acute respiratory failure following thyroid surgery from January 2004 to December 2013, were reviewed. Demographic data including gender, age, clinical presentation, laryngoscopic findings, management and outcome during a 24-months follow-up after treatment were collected and evaluated. Moreover, the strategy for prolonged nasotracheal safe extubation was carefully described. RESULTS: Nineteen out of the 2853 patients scheduled for thyroid surgery (0.66%) at our University Hospital, developed post-operative acute respiratory failure. All of them were treated by nasotracheal prolonged safe extubation. The success rate in avoiding highly invasive treatment was of 84.2%, since only 3 patients needed definitive tracheotomy (15.7%). CONCLUSIONS: In our series, the prolonged safe extubation reduced the almost totality of expected tracheotomies in patients with acute respiratory failure following thyroid surgery (84.2%), demonstrating its feasibility and efficacy. It was a well tolerated and minimal invasive procedure that allowed a good respiratory ability and a fast clinical resolution of the laryngeal functional impairment.
Subject(s)
Airway Extubation/methods , Intubation, Intratracheal/methods , Postoperative Complications/therapy , Respiratory Insufficiency/therapy , Thyroidectomy/adverse effects , Adult , Aged , Feasibility Studies , Female , Follow-Up Studies , Humans , Intensive Care Units , Laryngoscopy , Male , Middle Aged , Postoperative Complications/etiology , Postoperative Period , Respiratory Insufficiency/etiology , Retrospective Studies , Time Factors , Tracheotomy/statistics & numerical dataABSTRACT
BACKGROUND: Thyroidectomy is one of the most common intervention in general surgery and, after the turn of the century, its rate has sharply increased, along with a worldwide increased incidence of differentiated thyroid cancers. Therefore, injuries of the recurrent laryngeal nerve have become one of the most frequent cause of surgical malpractice claims, mostly following surgery for benign pathology. MAIN BODY: Even if the incidence of definitive paralysis is generally lower than 3%, during the last 20 years in Italy, the number of claims for damages has sharply raised. As a consequence, a lot of defensive medicine has been caused by this issue, and a witch-hunt has been accordingly triggered, so determining mostly a painful and lasting frustration for the surgeons, who sometimes are compelled to pay a lot of money for increasing insurance premiums and lawyers fees. Recurrent laryngeal nerve injury should be considered as a potentially catastrophic predictable but not preventable event, rather than the result of a surgical mistake. CONCLUSION: Purposes of the Authors are analyzing incidence, conditions of risk, and mechanisms of recurrent laryngeal nerve injuries, underlining notes of surgical technique and defining medical practice recommendations useful to reduce the risk of malpractice lawsuits and judgments against surgeons.
Subject(s)
Malpractice/economics , Postoperative Complications/economics , Recurrent Laryngeal Nerve Injuries/economics , Thyroidectomy/adverse effects , Female , Humans , Incidence , Italy/epidemiology , Male , Postoperative Complications/epidemiology , Postoperative Complications/etiology , Postoperative Complications/prevention & control , Recurrent Laryngeal Nerve Injuries/epidemiology , Recurrent Laryngeal Nerve Injuries/etiology , Recurrent Laryngeal Nerve Injuries/prevention & control , Thyroid Neoplasms/surgery , Thyroidectomy/economics , Thyroidectomy/methods , Treatment OutcomeABSTRACT
BACKGROUND: The diagnosis of thyroid nodular diseases requires an integrated approach that has been widely established over the past years. This strategy includes: ultrasonography (US) with; implemented Color-Power-Doppler, conventional scintigraphy also with positive indicators, specific pathological studies targeted by immunohistochemically-assays, and the fine needle; aspiration biopsy (FNAB), which, usually, in case of "Follicular Lesions" (10-20%) findings is; unable to distinguish carcinoma from follicular adenoma, then indicating the necessity of surgery to; obtain a correct diagnosis. The aim of this study was to evaluate the role of the scintigraphy with; positive indicators, both preoperatively in diagnostic approach of the thyroid nodules and; intraoperatively as a guide to the extension of the surgical excision. METHODS: On 4482 Thyroidectomy performed, we selected 360 cases of follicular neoplasms (192; females and 168 males). In the preoperative phase, these patients underwent 99 m Tc-sestaMIBI; scintigraphy with both early (10 min) and late (2 h) image acquisition, which were later; compared to the ones obtained by image subtraction of means 99 m Tc-pertechnetate. Following the; sestamibi administration before intervention, we selected the most up-taking nodularity with the; assistance of a specific surgical probe (Neoprobe), quantifying uptake with relation to the surgical pathology, for an amount of 324 total thyroidectomies and 36 hemi thyroidectomies. RESULTS: In all cases of multinodular goiter the benign nodules showed an intraoperative low sestamibi uptake whereas follicular carcinomas showed both a high preoperative uptake and, as a; percentage, the highest values of intraoperative uptake; on the other hand, follicular adenomas had; both pre-and intraoperative mean values of uptake. On the contrary, papillary carcinomas only; showed a mild uptake. CONCLUSIONS: Preoperative sestamibi scintigraphy confirmed its importance in improving the information obtained through different diagnostic investigations. Also intraoperatively, it pointed; out high-risk nodules more accurately. Therefore, radio (Sestamibi) guided surgery could have an; interesting rule in the thyroid follicular lesion treatment.
Subject(s)
Adenocarcinoma, Follicular/diagnostic imaging , Radionuclide Imaging/methods , Thyroid Nodule/diagnostic imaging , Thyroidectomy/methods , Ultrasonography, Doppler, Color/methods , Adenocarcinoma, Follicular/surgery , Adult , Aged , Biopsy, Fine-Needle , Carcinoma, Papillary/diagnostic imaging , Carcinoma, Papillary/surgery , Female , Goiter, Nodular/diagnostic imaging , Humans , Image-Guided Biopsy/methods , Male , Middle Aged , Radiopharmaceuticals , Retrospective Studies , Technetium Tc 99m Sestamibi , Thyroid Cancer, Papillary , Thyroid Neoplasms/diagnostic imaging , Thyroid Neoplasms/surgery , Thyroid Nodule/surgeryABSTRACT
OBJECTIVES: Precise temporal performance is crucial for several complex tasks. Time estimation in the second-to-minutes range-known as interval timing-involves the interaction of the basal ganglia and the prefrontal cortex via dopaminergic-glutamatergic pathways. Patients with Huntington's disease (HD) present deficits in cognitive and motor functions that require fine control of temporal processing. The objective of the present work was to assess temporal cognition through a peak-interval time (PI) production task in patients with HD and its potential correlation with the Unified Huntington's Disease Rating Scale (UHDRS). MATERIALS AND METHODS: Patients with molecular diagnosis of HD and controls matched by age, sex and educational level (n=18/group) were tested for interval timing in short- (3 seconds), medium- (6 seconds) and long (12 seconds)-duration stimuli. RESULTS: Significant differences were observed in the PI task, with worse performance in HD compared to controls. Patients underestimated real time (left-shifted Peak location) for 6- and 12-second intervals (P<.05) and presented decreased temporal precision for all the intervals evaluated (P<.01). Importantly, a significant correlation was found between time performance and the UHDRS (P<.01). Patients' responses also deviated from the scalar property. CONCLUSIONS: Our results contribute to support that timing functions are impaired in HD in correlation with clinical deterioration. Recordings of cognitive performance related to timing could be a potential useful tool to measure the neurodegenerative progression of movement disorder-related pathologies.
Subject(s)
Cognition/physiology , Huntington Disease/physiopathology , Time Perception/physiology , Adult , Disease Progression , Female , Humans , Huntington Disease/diagnosis , Male , Middle AgedABSTRACT
BACKGROUND: Conventional loop ileostomy (CLI) is a suitable procedure for transitory faecal diversion after colorectal anastomosis, but it causes relevant morbidities (dehydration, discomfort, peristomal infections) and requires a second operation to be closed. We already described an alternative technique of temporary percutaneous ileostomy (TPI), which can be removed without surgery. AIMS: We analyse the outcomes and the costs of the TPI in protecting low colorectal anastomosis in elderly, compared to the CLI. METHODS: Data of patients underwent elective anterior rectal resection for rectal cancer with extra-peritoneal colorectal anastomosis protected by ileostomy from January 2011 to December 2015 were reviewed. Sixty-one out of 132 patients were older than 70; 35 underwent faecal diversion by TPI and 26 by CLI. RESULTS: The two groups resulted homogenous about age, sex, operative time, short-term post-operative complications. None of the patients reported anastomotic leakage. The hospital stay and the cost for the first surgical procedure did not show statistically significant differences between TPI and CLI. When comparing the overall hospital stay and costs the differences are statistically significant: the TPI showed a shorter hospital stay (12.4 vs 19.3 days, -35.7%) and a lower cost of hospitalization (7954.0 vs 14,372.1, -44.7%), compared to CLI. DISCUSSION: The limited duration of the faecal diversion and the uselessness of a second surgical procedure to remove the TPI are the most important advantages of TPI, especially in elderly. CONCLUSION: The TPI not only improved the post-operative outcome of the patients, but also allowed a remarkable saving for the National Health System.
Subject(s)
Anastomosis, Surgical/adverse effects , Anastomotic Leak/prevention & control , Ileostomy/economics , Length of Stay/economics , Aged , Aged, 80 and over , Cost-Benefit Analysis , Female , Humans , Ileostomy/methods , Male , Postoperative Complications/etiology , Rectal Neoplasms/surgery , Time FactorsABSTRACT
BACKGROUND: The male breast cancer (MBC) is a rare and represents less than 1% of all malignancies in men and only 1% of all breast cancers incident. We illustrate the experience of our team about the clinico-pathological characteristics, treatment and prognostic factors of patients treated over a period of twenty years . RESULTS: Forty-seven patients were collected 1995-2014 at the Breast Unit of the Hospital of Terni, Italy. The average age was 67 years and the median time to diagnosis from the onset of symptoms was 16 months. The main clinical complaint was sub areolar swelling in 36, 76% of cases. Most patients have come to our attention with advanced disease. The histology of about ninety percent of the tumors were invasive ductal carcinoma. Management consisted mainly of radical mastectomy; followed by adjuvant radiotherapy and hormonal therapy with or without chemotherapy. The median follow-up was 38 months. The evolution has been characterized by local recurrences; in eight cases (17% of all patients). Metastasis occurred in 15 cases (32% of all patients). The site of bone metastases was in eight cases; lung in four cases; liver in three cases; liver and skin in one case and pleura and skin in one case. CONCLUSION: The male breast cancer has many similarities to breast cancer in women, but there are distinct functions that need to be appreciated. Future research for a better understanding of the disease should provide a better account of genetic and epigenetic characteristics of these forms; but, above all, epidemiological and biological cohorts numerically more consistent.
ABSTRACT
INTRODUCTION: Breast myoblastoma or granular cell tumor involving the breast parenchyma has been described in detail for the first time since Abrikossoff in 1931. The location of this injury to the breast is very rare, accounting for between 5% and 15% of all cases of cancer of the granular cells. We present our experience regarding the identification of two cases because of the relative rarity of this tumor. It is often confused with breast cancer on clinical and radiological, and its diagnosis can then be difficult for physicians, radiologists and pathologists. PRESENTATION OF CASES: We report the cases of two young women who came to our attention because of the presence of mass shoveled breast, mobile and accompanied by pain cycle independent. In both cases, mammography and ultrasound revealed the presence of heterogeneous mass and irregular, but in one of two such mass located at the Union of external quadrants of the left breast and was in contact with his serratus anterior and suspicion for malignancy. In both cases the 'histology combined with immunohistochemical study proved to be a granular cell tumor. CONCLUSION: Although a granular cell tumor of the breast is a rare tumor breast, should be considered in the differential diagnosis of benign and malignant lesions. Surgeons and pathologists should keep in mind when considering a granular cell tumor cells with abundant granular cytoplasm containing materials to avoid misdiagnosing breast cancer, which could lead to unnecessary surgery.
ABSTRACT
INTRODUCTION: Tracheal varices are a rare condition but they can be an important source of massive or recurrent haemoptysis. Usually they are related to increased pressure in the pulmonary veins. Mediastinal goiter is often associated to compressive effects on the surrounding structures, including mediastinal vessels with potential superior vena cava syndrome. CASE REPORT: We describe a case, not previously reported in literature, of mediastinal goiter with hemoptysis as first clinical manifestation. Bleeding was attributed to a superior vena cava syndrome associated to a tracheal fragile mucosa with an easily bleeding intramural nodule which was diagnosed as tracheal varices after total thyroidectomy. The nodule in fact disappeared together with the venous hypertensive signs after venous decompression of the mediastinum. CONCLUSIONS: Compressive symptoms including tracheal varices, related to mediastinal goiter, can be treated surgically by total thyroidectomy via cervicotomy and when required with associated median sternotomy.
Subject(s)
Goiter, Substernal/surgery , Thyroidectomy , Trachea/blood supply , Varicose Veins/etiology , Goiter, Substernal/complications , Hemoptysis/etiology , Humans , Male , Middle Aged , Sternum/surgery , Thyroidectomy/methods , Treatment Outcome , Varicose Veins/complicationsABSTRACT
AIM: The use of robotic technology has proved to be safe and effective, arising as a helpful alternative to standard laparoscopy in a variety of surgical procedures. However the role of robotic assistance in laparoscopic rectopexy is still not demonstrated. METHODS: A systematic review of the literature was carried out performing an unrestricted search in MEDLINE, EMBASE, the Cochrane Library, and Google Scholar up to 30th June 2014. Reference lists of retrieved articles and review articles were manually searched for other relevant studies. We meta-analyzed the data currently available regarding the incidence of recurrence rate of rectal prolapse, conversion rate, operative time, intra-operative blood loss, post-operative complications, re-operation rate and hospital stay in robot-assisted rectopexy (RC) compared to conventional laparoscopic rectopexy (LR). RESULTS: Six studies were included resulting in 340 patients. The meta-analysis showed that the RR does not influence the recurrence rate of rectal prolapse, the conversion rate and the re-operation rate, whereas it decreases the intra-operative blood loss, the post-operative complications and the hospital stay. Yet, the RR resulted to be longer than the LR. Post-operative ano-rectal and the sexual functionality and procedural costs could not meta-analyzed because the data from included studies about these issues were heterogeneous and incomplete. CONCLUSION: The meta-analysis showed that the RR may ensure limited improvements in post-operative outcomes if compared to the LR. However, RCTs are needed to compare RR to LR in terms of short-term and long-term outcomes, specially investigating the functional outcomes that may confirm the cost-effectiveness of the robotic assisted rectopexy.
Subject(s)
Digestive System Surgical Procedures/methods , Rectal Prolapse/surgery , Rectum/surgery , Robotic Surgical Procedures/methods , Blood Loss, Surgical , Humans , Laparoscopy/methods , Length of Stay , Operative Time , Postoperative Complications/surgery , RecurrenceABSTRACT
AIM: Anaplastic thyroid carcinoma (ATC) is characterized by local invasiveness, risk of recurrence and very poor prognosis. METHODS: We retrospectively reviewed 79 consecutive patients treated between 1996 and 2012. We analysed the multimodality treatment of ATC considering the impact of surgery and radiotherapy on survival. RESULTS: Patients were divided in groups A and B (tumor less and larger than 5 cm). Surgery was carried out in 44 patients, radiotherapy in 48 patients. Tracheostomy and endoprosthesis were used respectively in 48.1% and in 25.3% of patients. The mean survival was 5.35 (± 3.2) months with no significant difference in group A vs. group B. Considering patients undergone surgery, significant impact on survival was observed comparing A vs. B (P=0.013). Combination of surgery and radiotherapy significantly improves outcome comparing A vs. B (P=0.017). Improvement in survival compared to no treatment at all was observed in both groups respectively for surgery (P=0.001 and P=0.0001) and radiotherapy (P=0.047 and P=0.0001). CONCLUSION: Although the severity of prognosis of ATC, multimodality treatment still significantly improves local control of the disease achieving acceptable survival in selected patients and adequate palliation of symptoms for the others. Surgery is still a fundamental treatment.
Subject(s)
Chemotherapy, Adjuvant , Radiotherapy, Adjuvant , Thyroid Carcinoma, Anaplastic/therapy , Thyroid Neoplasms/therapy , Tracheostomy , Aged , Aged, 80 and over , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Chemotherapy, Adjuvant/methods , Female , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Neoplasm Invasiveness , Neoplasm Staging , Prognosis , Radiotherapy, Adjuvant/methods , Retrospective Studies , Severity of Illness Index , Thyroid Carcinoma, Anaplastic/diagnosis , Thyroid Carcinoma, Anaplastic/mortality , Thyroid Carcinoma, Anaplastic/radiotherapy , Thyroid Carcinoma, Anaplastic/surgery , Thyroid Neoplasms/diagnosis , Thyroid Neoplasms/mortality , Thyroid Neoplasms/radiotherapy , Thyroid Neoplasms/surgery , Tracheostomy/methods , Treatment OutcomeABSTRACT
AIM: Thyroid cancer prognosis is determined by several variables, even with extremely elevated survival rate. The most debated issues are the type of thyroidectomy and extension of lymphadenectomy. Aim of the study is the analysis of benefits of level VI lymphadenectomy associated to total thyroidectomy in the treatment of thyroid cancer. PATIENTS AND METHODS: 316 total thyroidectomy with central node dissection were carried out in the Unit of Endocrine Surgery, University of Perugia. Direct parathyroid auto-implantation was carried out if damage or accidental excision occurred. High risk patients received radioiodine treatment. RESULTS: Lymph node metastases in the VI level were observed in 42% of cases with a significant difference (p 0.0042) of positive lymph node in level VI comparing tumor larger than 1 cm vs smaller than 1 cm. No significant differences were observed when considering difference of sex, and age. Significant difference (p 0.005) was shown when considering over 45 years old male patients with tumor larger than 1 cm vs smaller ones. The 78% of patients underwent iodine ablation after surgery. Recurrence rate in these patients was 3.2%, with no significant difference compared to not treated patients. Bilateral temporary recurrent nerves palsy were observed in 0.6% of cases, unilateral temporary recurrent nerves palsy in 3.4%, unilateral permanent palsy in 1.5%, temporary hypoparathyroidism in 17%, permanent hypoparathyroidism in 4.4%. CONCLUSIONS: Total thyroidectomy combined to central node dissection, even in absence of risk factors and without clinical evident nodes, is the treatment of choice offering clear indications to radioiodine ablation.
Subject(s)
Carcinoma, Papillary/surgery , Neck Dissection , Neoplasm Recurrence, Local/surgery , Thyroid Neoplasms/surgery , Thyroidectomy , Adult , Carcinoma, Papillary/therapy , Female , Hospitals, University , Humans , Hypoparathyroidism/etiology , Iodine Radioisotopes/therapeutic use , Male , Middle Aged , Neoplasm Recurrence, Local/therapy , Prognosis , Risk Factors , Sex Distribution , Thyroid Neoplasms/therapy , Thyroidectomy/adverse effects , Thyroidectomy/methods , Treatment Outcome , Vocal Cord Paralysis/prevention & controlABSTRACT
Staling of bread is cause of significant product waste in the world. We reviewed the literature of the last 10 y with the aim to give an up-to-date overview on processing/storage parameters, antistaling ingredients, sourdough technology, and measurement methods of the staling phenomenon. Many researchers have been focusing their interest on the selection of ingredients able to retard staling, mainly hydrocolloids, waxy wheat flours (WWF), and enzymes, but different efforts have been made to understand the molecular basis of bread staling with the help of various measurement methods. Results obtained confirm the central role of amylopectin retrogradation and water redistribution within the different polymers in determining bread staling, but highlighted also the importance of other flour constituents, such as proteins and nonstarch polysaccharides. Data obtained with thermal, spectroscopy, nuclear magnetic resonance, X-ray crystallography, and colorimetry analysis have pointed out the need to encourage the use of one or more of these techniques in order to better understand the mechanisms of staling. Results so far obtained have provided new insight on bread staling, but the phenomenon has not been fully elucidated so far.
ABSTRACT
The last decade has witnessed the affirmation of the paradigm Health Technology Assessment (HTA) as a tool for government innovation technology in health care. As is known, this is an approach of evaluation oriented policy making that, in addition to provide for the disclosure of its results, it is proposed to consider simultaneously the clinical, economic, organizational, ethical and social issues arising from the introduction or disposal of a health technology, understood in the broadest sense of the term. In order to reconstruct a realistic picture of its level of implementation we have reproduced a micro HTA which served to assess the Harmonic Focus® device usefulness in breast surgery.
Subject(s)
Biomedical Technology/standards , Breast Neoplasms/surgery , Mastectomy/economics , Technology Assessment, Biomedical , Biomedical Technology/methods , Clinical Governance , Female , Hospital Units , Hospitals , Humans , ItalyABSTRACT
The growth of technological innovation, the request for assistance, the rising patient's expectations and the interest of the industry have led to a rise in the cost of health care systems. In this context the role of the National Health System is not to delay the development or adoption of new technologies, but rather to drive the development selecting priorities and promoting its use. Health Technology Assessment (HTA) is a multidisciplinary and multidimensional approach for analyzing the medical-clinical, social, organizational, economic, ethical and legal implications of a technology (devices, drugs, procedures) through the assessment of multiple parameters such as effectiveness, safety, costs of the social and organizational impact. A health technology assessment is a comprehensive, systematic evaluation of the prerequisites for estimating the consequences of using health technology. Main characteristic of HTA is that the problem is tackled using an approach focused on four main elements: - technology; - patient; - organization; - economy. The authors have applied the HTA method for the analysis of the ultrasonic focus dissector on thyroid surgery. They compared the cost of the surgical procedure using the ultrasonic dissector and without it in a case study of 440 patients who underwent thyroidectomy.
Subject(s)
Technology Assessment, Biomedical , Thyroidectomy/standards , Costs and Cost Analysis , Humans , Surveys and Questionnaires , Technology Assessment, Biomedical/economics , Thyroidectomy/economicsABSTRACT
Thyroid gland tumors represent 1% of malignant tumors. In Italy their incidence is in constant growth. The aggressiveness depends on the histological type. The relative non-aggressive grade of different forms of tumors is the basis for discussing the treatment of choice: total thyroidectomy vs lobectomy with or without lymphadenectomy of the sixth level in the absence of metastasis. Authors report about their experience, and they advocate, given the high percentage of multicentric forms, total thyroidectomy as treatment of choice.
Subject(s)
Thyroid Neoplasms/surgery , Thyroidectomy , Adult , Female , Humans , Male , Middle Aged , Thyroid Neoplasms/pathologyABSTRACT
Recent literature highlights the importance of pro-inflammatory cytokines in the biology of breast cancer stem cells (CSCs), unraveling differences with respect to their normal counterparts. Expansion of mammospheres (MS) is a valuable tool for the in vitro study of normal and cancer mammary gland stem cells. Here, we expanded MSs from human breast cancer and normal mammary gland tissues, as well from tumorigenic (MCF7) and non-tumorigenic (MCF10) breast cell lines. We observed that agonists for the retinoid X receptor (6-OH-11-O-hydroxyphenanthrene), retinoic acid receptor (all-trans retinoic acid (RA)) and peroxisome proliferator-activated receptor (PPAR)-γ (pioglitazone (PGZ)), reduce the survival of MS generated from breast cancer tissues and MCF7 cells, but not from normal mammary gland or MCF10 cells. This phenomenon is paralleled by the hampering of pro-inflammatory Nuclear Factor-κB (NF-κB)/Interleukin-6 (IL6) axis that is hyperactive in breast cancer-derived MS. The hindrance of such pathway associates with the downregulation of MS regulatory genes (SLUG, Notch3, Jagged1) and with the upregulation of the differentiation markers estrogen receptor-α and keratin18. At variance, the PPARα agonist Wy14643 promotes MS formation, upregulating NF-κB/IL6 axis and MS regulatory genes. These data reveal that nuclear receptors agonists (6-OH-11-O-hydroxyphenanthrene, RA, PGZ) reduce the inflammation dependent survival of breast CSCs and that PPARα agonist Wy14643 exerts opposite effects on this phenotype.
Subject(s)
Cell Survival/drug effects , Neoplastic Stem Cells/cytology , Phenanthrenes/pharmacology , Receptors, Cytoplasmic and Nuclear/agonists , Thiazolidinediones/pharmacology , Tretinoin/pharmacology , Breast Neoplasms/metabolism , Breast Neoplasms/pathology , Cell Line, Tumor , Female , Humans , Inflammation/metabolism , Inflammation/pathology , Interleukin-6/metabolism , NF-kappa B/metabolism , PPAR gamma/agonists , PPAR gamma/metabolism , Phenanthrenes/chemistry , Pioglitazone , Pyrimidines/pharmacology , Receptors, Cytoplasmic and Nuclear/metabolism , Receptors, Retinoic Acid/agonists , Receptors, Retinoic Acid/metabolism , Retinoid X Receptors/agonists , Retinoid X Receptors/metabolism , Thiazolidinediones/chemistry , Tretinoin/chemistryABSTRACT
Extraction technology has a great effect on quality of olive oils. This paper studied 18 months of storage of two Sardinian extra virgin monovarietal oils obtained with a traditional and with a low oxidative stress technology. Oil samples were subjected to the following chemical analyses: acidity, peroxide value, ultraviolet light absorption K232 and K270, carotenoids, chlorophylls, tocopherols and total polyphenols. The antioxidant capacity of oils, polyphenol extract and oil extract (remaining after polyphenol extraction) was also determined as radical scavenging activity. The results show that both extraction technologies resulted in minor changes in legal and quality indices during storage, due surely to the high quality of the oils as well as to the very good storage conditions used. Oils obtained with the low oxidative stress technology showed lower peroxide value and acidity and resulted in up to 103% higher total polyphenol content as well as increased radical-scavenging activity, with respect to oils obtained with the traditional technology.
Subject(s)
Antioxidants/chemistry , Olive Oil/chemistry , Plant Oils/chemistry , PolyphenolsABSTRACT
There is an analogy between embryogenesis and cancer and the attention is on increasing the rate of cell division and on a small percentage of perennial cells . The key to understanding is to be found in the properties of these cells developed in the form of perennial totipotency, multipotency and unipotent. The normal life cycle involves epigenetic mechanisms that are deregulated in cancer cells, these tumor cells appear to belong to deregulation since its progeny. Here is a review of the literature on embryogenesis of the breast, endocrine system interactions Delna the proper development and functioning of the various cell lines and to the importance of cancer stem cells.