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The brachiocephalic vein (BCV), also known as the innominate vein, is a central vein in the upper chest formed by merging the internal jugular and subclavian veins. It plays a crucial role in venous return from the head, neck, and upper extremities and is significant in procedures such as pacemaker and implantable cardioverter-defibrillator (ICD) placement, chemotherapy ports, and central venous catheter insertions. The presence of foreign bodies and local malignancy are major risk factors for thrombosis in the BCV. As part of the deep venous system, BCV thrombosis (BCVT) is a rare condition but can lead to serious complications like superior vena cava syndrome and, rarely, pulmonary embolism. This case report presents an 82-year-old woman with a history of heart failure with reduced ejection fraction, coronary artery disease, atrial fibrillation, HIV, pulmonary embolism, systemic lupus erythematosus, and breast cancer who required an ICD placement due to persistent systolic dysfunction. During the procedure, chronic BCVT leading to the stenosis was incidentally discovered, necessitating urgent vascular intervention to establish venous patency. The patient's complex medical history, including previous chemotherapy through a central venous catheter, contributed to the risk factors for BCVT. The multidisciplinary approach led to successful ICD placement and the reinstatement of anticoagulation therapy. This case underscores the rarity and severity of BCVT and highlights the importance of pre-procedural imaging, such as CT venography, in patients with multiple risk factors. Additionally, the report suggests considering leadless ICD technology for patients with limited venous access to avoid complications. The findings emphasize the critical need for thorough evaluation and planning in complex cases to ensure successful outcomes.
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Background and Objectives: Even though measles is easily prevented by vaccination, infection outbreaks are not rare. Infection carries a great risk for pulmonary complications, which are sometimes hard to predict, especially in a group of outpatients. This study aims to evaluate the association between serum CRP changes and the severity of respiratory complications in the group of inpatients treated for measles. Materials and Methods: A total of 207 patients admitted and treated at the Clinic for Infectious Diseases, University Clinical Center, Nis, for measles infection were included in the analysis. The data collected from the patients' medical records included demographic characteristics, disease duration, blood and serum biochemical analysis, general measles-associated symptoms, and disease outcome. Results: Results of the study revealed that there are almost no differences in the clinical presentation of patients with measles and those complicated with pneumonia. The examined CRP changes are found to correlate with the observable degree of pneumonia; however, they do not correspond to the changes visible in chest X-rays. Conclusions: CRP changes in the serum of patients with measles with mild clinical pictures could be a potential predictor for the development of some pulmonary complications.
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Biomarcadores , Proteína C-Reactiva , Sarampión , Adolescente , Adulto , Niño , Preescolar , Femenino , Humanos , Masculino , Adulto Joven , Biomarcadores/sangre , Proteína C-Reactiva/análisis , Sarampión/sangre , Sarampión/complicaciones , Neumonía/sangre , Neumonía/complicaciones , Valor Predictivo de las PruebasRESUMEN
BACKGROUND: Metabolic syndrome (MetSy) is characterized by the presence of obesity, hypertension, altered glucose metabolism, and/or increased non-HDL cholesterol. This study aimed at elucidating the association between obesity with subclinical target organ damage and biochemical parameters included in MetSy pathogenesis. METHODS: This study included 130 apparently healthy subjects. Plasma levels of oxidized-LDL-cholesterol (ox-LDL-Chol), nitric oxide (NO) metabolites, inducible NO synthase (iNOS), and plasminogen activator inhibitor-1 (PAI-1) were measured. Non-invasive assessment of liver disease included fatty liver index (FLI) and nonalcoholic fatty liver disease (NAFLD) fibrosis score. Carotid artery plaques were assessed by color Doppler imaging. RESULTS: A total of 65 patients with MetSy were included in the MetSy group, while 65 without MetSy entered the control group. Ox-LDL-Chol levels were higher in the MetSy group compared to the control group, regardless of obesity. Levels of NO metabolites were similar in obese and non-obese patients with MetSy, but lower than in the control group. Obese patients with MetSy had higher iNOS values compared to non-obese ones, with similar PAI-1 levels. NAFLD was present in all obese patients with MetSy compared to 70% of non-obese subjects. Hypertension, higher values of waist-to-hip ratio, PAI-1, and remnant cholesterol were associated with NAFLD. Finding of asymptomatic carotid plaques was associated with patients' age, hypertension, and higher waist-to-hip ratio. CONCLUSION: MetSy and obesity significantly alter the levels of NO metabolites, iNOS, ox-LDL-Chol, and PAI-1. High prevalence of NAFLD in obese patients with MetSy requires active screening and treatment of potential risk factors.
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This case report highlights a 47-year-old woman with an adrenal incidentaloma and a history of polysubstance abuse, finally diagnosed with pheochromocytoma. Characterized by episodic hypertension, headaches, and palpitations, pheochromocytoma is a rare condition with potential complications like uncontrolled hypertension and heart failure. Remarkably, during her 28-day hospitalization, continuous monitoring revealed no instances of tachycardia or arrhythmias despite multiple symptomatic episodes. This finding aligns with reports that while 50-70% of symptomatic pheochromocytoma patients experience palpitations, only about 20% exhibit detectable tachycardia or arrhythmias. This discrepancy suggests varied individual cardiovascular responses to catecholamine surges, possibly due to differences in catecholamine inactivation rates and receptor sensitivity. This case underscores the complexity of pheochromocytoma symptoms and highlights the need for personalized diagnostic and management strategies. Furthermore, it points to a significant gap in understanding the correlation between palpitations and arrhythmia in pheochromocytoma, indicating a critical area for future research.
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Microglia are key players in the brain's innate immune response, contributing to homeostatic and reparative functions but also to inflammatory and underlying mechanisms of neurodegeneration. Targeting microglia and modulating their function may have therapeutic potential for mitigating neuroinflammation and neurodegeneration. The anti-inflammatory properties of essential oils suggest that some of their components may be useful in regulating microglial function and microglial-associated neuroinflammation. This study, starting from the ethnopharmacological premises of the therapeutic benefits of aromatic plants, assessed the evidence for the essential oil modulation of microglia, investigating their potential pharmacological mechanisms. Current knowledge of the phytoconstituents, safety of essential oil components, and anti-inflammatory and potential neuroprotective effects were reviewed. This review encompasses essential oils of Thymus spp., Artemisia spp., Ziziphora clinopodioides, Valeriana jatamansi, Acorus spp., and others as well as some of their components including 1,8-cineole, ß-caryophyllene, ß-patchoulene, carvacrol, ß-ionone, eugenol, geraniol, menthol, linalool, thymol, α-asarone, and α-thujone. Essential oils that target PPAR/PI3K-Akt/MAPK signalling pathways could supplement other approaches to modulate microglial-associated inflammation to treat neurodegenerative diseases, particularly in cases where reactive microglia play a part in the pathophysiological mechanisms underlying neurodegeneration.
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Antiinflamatorios , Microglía , Fármacos Neuroprotectores , Aceites Volátiles , Aceites Volátiles/farmacología , Aceites Volátiles/química , Microglía/efectos de los fármacos , Microglía/metabolismo , Fármacos Neuroprotectores/farmacología , Fármacos Neuroprotectores/química , Humanos , Antiinflamatorios/farmacología , Antiinflamatorios/química , AnimalesRESUMEN
Background: The occurrence of COVID-19 led to the rapid development of several vaccines which were distributed around the world. Even though there had been a vast amount of information about both virus and vaccination, this process was potentially related to increased anxiety and thus affected the vaccination process. Objective: The present study examined anxiety levels and body vigilance in subjects reporting for COVID-19 vaccination at different vaccination sites. Methods: Instruments used included general socio-demographic questionnaires and specifically constructed ones such as generalized anxiety disorder (GAD), body vigilance scale (BVS), and coronavirus anxiety scale (CAS). Results: A total of 227 subjects enrolled in the study reported mild GAD and CAS scores and relatively low scores on BVS. When the subjects were divided according to a vaccination site (under supervision and non-supervised), it turned out that subjects vaccinated under supervision were more anxious (higher GAD and CAS) and had their body vigilance increased. Conclusion: In conclusion, there is a need for highlighting the importance of efficient planning and organization of vaccination process, since to a certain extent it is driven by both anxiety and body vigilance.
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This case report describes a 21-year-old female who was diagnosed with Kawasaki disease (KD), a rare condition in adults. Careful clinical assessment, including the history of a recent upper respiratory tract infection and the physical findings of fever, sinus tachycardia, strawberry tongue, and skin peeling of the hands and feet, prompted further evaluation. Laboratory findings supported an inflammatory process, and multidisciplinary consultations led to the diagnosis of KD. Prompt treatment with acetylsalicylic acid and intravenous immunoglobulin resulted in rapid improvement and prevention of the severe complications associated with untreated KD, particularly in the cardiovascular system. This case emphasizes the importance of the high risk of suspicion and the need for a comprehensive evaluation in atypical presentations of KD in adults, where early recognition and management are crucial to prevent long-term sequelae such as coronary artery aneurysms and myocardial infarction.
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Brugada syndrome is an autosomal dominant channelopathy that usually affects healthy young males without apparent structural heart disease. It is associated with a spectrum of variable and dynamic clinical manifestations, high risk of life-threatening ventricular arrhythmias, and sudden cardiac death. Our patient demonstrated transient and dynamic EKG changes of both type 1 (coved) and type 2 (saddleback) ST elevation, suggestive of the Brugada pattern that was associated with physical chest trauma and stressful situations. While common triggers like fever and certain drugs are well-recognized, this case illustrates the potential for physical stress and trauma to unmask or aggravate Brugada syndrome, albeit without definitive evidence for a causal link. Ultimately, this report underscores the importance of considering a broad differential diagnosis, including Brugada syndrome, in patients presenting with unexplained syncope or characteristic EKG changes, even when traditional triggers are absent.
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Marrubiin is a diterpene with a long history of a wide range of biological activities. In this study, the anti-inflammatory effects of marrubiin were investigated using several in vitro and in vivo assays. Marrubiin inhibited carrageenan-induced peritoneal inflammation by preventing inflammatory cell infiltration and peritoneal mast cell degranulation. The anti-inflammatory activity was further demonstrated by monitoring a set of biochemical parameters, showing that the peritoneal fluid of animals treated with marrubiin had lower levels of proteins and lower myeloperoxidase activity compared with the fluid of animals that were not treated. Marrubiin exerted the most pronounced cytotoxic activity towards peripheral mononuclear cells, being the main contributors to peritoneal inflammation. Additionally, a moderate lipoxygenase inhibition activity of marrubiin was observed.
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Antiinflamatorios , Carragenina , Diterpenos , Mastocitos , Animales , Carragenina/efectos adversos , Ratones , Diterpenos/farmacología , Mastocitos/efectos de los fármacos , Mastocitos/metabolismo , Antiinflamatorios/farmacología , Ratones Endogámicos C57BL , Peritonitis/inducido químicamente , Peritonitis/tratamiento farmacológico , Peritonitis/metabolismo , Peritonitis/patología , Masculino , Inflamación/metabolismo , Inflamación/tratamiento farmacológico , Inflamación/inducido químicamente , Inflamación/patología , Degranulación de la Célula/efectos de los fármacos , Peroxidasa/metabolismo , Leucocitos Mononucleares/efectos de los fármacos , Leucocitos Mononucleares/metabolismoRESUMEN
AIM: This prospective cohort study was undertaken to evaluate the success rate of root canal treatment (RCT) in type 2 diabetes mellitus (T2DM) patients with targeted level and unachieved targeted level of glycaemic control as well as the impact of RCT on the glucose blood level in T2DM patients. METHODOLOGY: Patients needing RCT were divided into three groups: these without T2DM, that is, the control group (CG), those with targeted level of glycated haemoglobin HbA1c < 7% (TL A1c) and the third ones with unachieved targeted level (UTL A1c), that is, with HbA1c ≥ 7%. Before RCT, HbA1c and the periapical index (PAI) score were assessed, as well as 1 year later. RESULTS: Our results showed less favourable treatment results of RCT such as a reduction of radiographic lesions in T2DM patients, particularly in subjects with UTL A1c. The intergroup analysis of PAI score at the 12-month follow-up revealed a significant difference in TL A1C (p = .022) and CG (p = .001) with respect to UTL A1c. Total number of healed teeth (PAI≤2) at the 12-month after RCT in UTL A1c was significantly lower in comparison to CG (p = .008). Contrariwise, RCT may improve the glycaemic control in diabetic patients with UTL A1c after 12 months of posttreatment. Regression analysis showed that UTL A1c patients were more likely to have AP persistence after endodontic treatment (OR = 4.788; CI: 1.157-19.816; p = .031). CONCLUSIONS: T2DM retards the AP healing and conversely AP contributes to increasing the inflammatory burden in T2DM. RCT reduces the cumulative inflammatory burden in T2DM and thus may contribute to improvement of glycaemic control particularly in patients with UTL A1c.
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Diabetes Mellitus Tipo 2 , Hemoglobina Glucada , Hiperglucemia , Periodontitis Periapical , Tratamiento del Conducto Radicular , Humanos , Periodontitis Periapical/terapia , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/sangre , Estudios Prospectivos , Tratamiento del Conducto Radicular/métodos , Masculino , Persona de Mediana Edad , Hemoglobina Glucada/análisis , Femenino , Hiperglucemia/sangre , Hiperglucemia/complicaciones , Adulto , Resultado del Tratamiento , Glucemia/análisis , AncianoRESUMEN
The encounter between dental biofilm and neutrophils in periodontitis remains elusive, although it apparently plays a crucial role in the periodontal pathology and constitutes a key topic of periodontology. Dental biofilm and neutrophils were isolated from orally healthy persons and patients with periodontitis. We investigated biofilm and its particle-shedding phenomenon with electron microscopy and nanoparticle tracking analysis (NTA); biofilm shedding-neutrophil interactions were examined ex vivo with epi-fluorescence microscopy. For this purpose, we used acellular dental biofilm shedding, purified lipopolysaccharide (LPS), and phorbol 12-myristate 13-acetate (PMA) as activators, and the interleukin 8 receptor beta (CXCR2) inhibitor and the anti-interleukin 8 receptor alpha (CXCR1) antibody as modulators. The shedding of acellular dental biofilms overwhelmingly consists of bacterial extracellular vesicles (BEVs). The latter induced the moderate formation of neutrophil extracellular traps (NETs) in orally healthy subjects and a strong formation in patients with periodontitis. A CXCR2 inhibitor and an anti-CXCR1 antibody had a minor effect on NET formation. Neutrophils from patients with periodontitis exhibited NET hyper-responsiveness. BEVs were stronger inducers of NET formation than purified LPS and PMA. A plateau of neutrophil responsiveness is reached above the age of 40 years, indicating the abrupt switch of maladaptive trained immunity (TI) into the activated modus. Our results suggest that dental biofilms consist of and disseminate immense amounts of outer membrane vesicles (OMVs), which initiate NET formation via a non-canonical cytosolic LPS/caspase-4/11/Gasdermin D pathway. This modus of NET formation is independent of neutrophil elastase (NE), myeloperoxidase (MPO), peptidylarginine deiminase 4 (PAD4), and toll-like receptors (TLR). In periodontitis, the hyper-responsiveness of neutrophils to BEVs and the increased NET formation appear to be a consequence of TI.
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Trampas Extracelulares , Periodontitis , Humanos , Adulto , Neutrófilos/metabolismo , Lipopolisacáridos/farmacología , Lipopolisacáridos/metabolismo , Trampas Extracelulares/metabolismo , Periodontitis/metabolismo , BiopelículasRESUMEN
The pandemic caused by the SARS-CoV-2 virus had a great impact on the population of patients treated with peritoneal dialysis (PD). This study demonstrates the impact of infection and vaccination in 66 patients treated with PD and their outcomes during a 6-month follow-up. This is the first research that has studied the dynamics of anti-SARS-CoV-2 IgG in serum and effluent. In our research, 57.6% of PD patients were vaccinated, predominantly with Sinopharm (81.6%), which was also the most frequently administered vaccine in the Republic of Serbia at the beginning of immunization. During the monitoring period, the level of anti-SARS-CoV-2 IgG antibodies in the PD patients had an increasing trend in serum. In the group of vaccinated patients with PD, anti-SARS-CoV-2 IgG antibodies had an increasing trend in both serum and effluent, in contrast to non-vaccinated patients, where they decreased in effluent regardless of the trend of increase in serum, but statistical significance was not reached. In contrast to vaccinated (immunized) patients who did not acquire infection, the patients who only underwent the COVID-19 infection, but were not immunized, were more prone to reinfection upon the outbreak of a new viral strain, yet without severe clinical presentation and with no need for hospital treatment.
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There is little data on the phytochemical/pharmacological properties of Erica spiculifolia Salisb. (syn. Bruckentalia spiculifolia (Salisb.) Rchb.). This study examines the antioxidative and anti-inflammatory activities of different extracts and fractions of E. spiculifolia in vitro on isolated rat peritoneal macrophages, in the carrageenan-induced rat paw oedema test, BSA test, and two complementary antioxidant assays. Ethanolic extracts of leaves, flowers, and aboveground parts, and petroleum ether, ether, ethyl acetate, and water fractionations of the ethanol extract of E. spiculifolia applied at doses of 50-200 mg/kg p.o. exhibited dose-dependent anti-inflammatory activity comparable with indomethacin. All tested samples, except for the petroleum ether fraction, exerted excellent in vitro antioxidant activity, and all of them exhibited significant and similar inhibition of BSA denaturation comparable with diclofenac. Ethanolic extract of the aboveground parts obtained by percolation, ethyl acetate and water fractions had the highest efficiency, attenuating inflammation by more than 50% in the lowest applied concentration alongside exceptional radical scavenging activity.
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This study aimed to evaluate the protective action of oregano (Origanum vulgare) essential oil and its monoterpene constituents (thymol and carvacrol) in L-arginine-induced kidney damage by studying inflammatory and tissue damage parameters. The determination of biochemical markers that reflect kidney function, i.e., serum levels of urea and creatinine, tissue levels of neutrophil-gelatinase-associated lipocalin (NGAL), and kidney injury molecule-1 (KIM-1), as well as a panel of oxidative-stress-related and inflammatory biomarkers, was performed. Furthermore, histopathological and immunohistochemical analyses of kidneys obtained from different experimental groups were conducted. Pre-treatment with the investigated compounds prevented an L-arginine-induced increase in serum and tissue kidney damage markers and, additionally, decreased the levels of inflammation-related parameters (TNF-α and nitric oxide concentrations and myeloperoxidase activity). Micromorphological kidney tissue changes correlate with the alterations observed in the biochemical parameters, as well as the expression of CD95 in tubule cells and CD68 in inflammatory infiltrate cells. The present results revealed that oregano essential oil, thymol, and carvacrol exert nephroprotective activity, which could be, to a great extent, associated with their anti-inflammatory, antiradical scavenging, and antiapoptotic action and, above all, due to their ability to lessen the disturbances arising from acute pancreatic damage. Further in-depth studies are needed in order to provide more detailed explanations of the observed activities.
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Cimenos , Aceites Volátiles , Origanum , Animales , Ratas , Aceites Volátiles/farmacología , Timol/farmacología , Riñón , Inflamación/tratamiento farmacológico , Arginina/farmacologíaRESUMEN
Objectives: This study aimed to investigate the efficacy of glucosamine-sulfate (GS), nonanimal chondroitin-sulfate (naCS), and S-adenosylmethionine (SAMe) combination on ultrasound findings, inflammation, pain, and functionality in knee osteoarthritis. Patients and methods: In the prospective, randomized, double-blind, placebo-controlled pilot study conducted between August 2019 and November 2019, 120 participants (28 males, 92 females; mean age: 66.4±7.9 years; range, 42.4 to 74.5 years) were randomized at a 1:1:1 ratio to the placebo group, the first experimental group (a combination of GS, naCS, and SAMe was administered to the experimental groups. The first experimental group received 375 mg of GS, 300 mg of naCS, and 100 mg of SAMe, whereas the second experimental group received 750 mg of GS, 600 mg of naCS, and 200 mg of SAMe). Laboratory (erythrocyte sedimentation rate, C-reactive protein, tumor necrosis factor alpha, interleukin [IL]-1ß, IL-6, IL-17), clinical (Visual Analog Scale [VAS], short form health survey [SF-36], the Western Ontario and McMaster Universities Arthritis Index [WOMAC], and the Tegner Lysholm Knee Scoring Scale [TLKS]), and musculoskeletal ultrasound (MSUS) assessments were performed at baseline and after three and six months. Results: A minor increase was observed in the second experimental group after six months using ultrasonography to evaluate articular cartilage thickness (p<0.05). The investigational product's superiority in reducing osteoarthritis ultrasonographic findings was not proven. A moderately negative association was found between cartilage thickness and VAS scores at baseline (ρ=-0.36, p<0.01), while the presence of massive osteophytes on MSUS showed a low to moderate association with all clinical outcomes. There was no difference in the delta changes between groups for the VAS, TLKS, WOMAC, and SF-36. The only serum inflammatory marker outside the reference range was IL-1ß, but no significant changes were observed after six months. Conclusion: According to the results of our investigation, treatment for knee osteoarthritis should be evaluated using more objective outcomes. The most important conclusion of our study is that IP may result in a slight increase in articular cartilage thickness, which was associated with a decrease in pain intensity at baseline. Clarification of the potential influence of this combination on radiographic progression and laboratory markers of inflammation requires further exploration.
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Abstract Curcumin is a plant-derived compound with polypharmacological properties that are hampered by its poor solubility, fast degradation, etc. Wound closure complications that follow tooth extraction are numerous, and relatively frequently additional treatment is needed to prevent unwanted process chronification. The present study aims to compare the effects of free and the nanoliposome-encapsulated curcumin on tooth extraction wound closure. The experiments were performed on Wistar rats where both forms of curcumin were applied topically on a tooth extraction wound for seven days. Changes in tissue oxidative stress (malondialdehyde and oxidized proteins concentrations, and catalase activity) and inflammation (nitric oxide levels and myeloperoxidase activity) related parameters were studied three and seven days following the tooth extraction. Also, the extent of pathohistological changes and osteopontin immunohistochemical expression were studied. The obtained results indicate that both forms of curcumin prevent an increase in oxidative stress and inflammation-related parameters in the studied samples at 3-and 7-day time points. Additionally, we found that curcumin diminished tissue inflammatory response and osteopontin expression, while at the same time it caused faster granulation tissue maturation. The encapsulation of curcumin in nanoliposomes proved to be better in improving the extraction wound healing process than the free curcumin, giving this formulation a potential in the pharmaceutical industry.
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Animales , Masculino , Femenino , Ratas , Extracción Dental/clasificación , Infección de Heridas/clasificación , Heridas y Lesiones/tratamiento farmacológico , Curcumina/análisis , Técnicas de Cierre de Heridas/clasificación , Inflamación/tratamiento farmacológico , Cicatrización de Heridas/efectos de los fármacos , Estrés OxidativoRESUMEN
SUMMARY: This study aimed to explore the effects of a single moderate-intensity aerobic endurance running program on the morphological characteristics of normal-weighted and overweighted female adolescents and whether effects differ between individuals of different nutritional statuses. A total of 47 adolescent girls participated in this randomized controlled trial. Before and after 12 weeks of intervention, measurements were obtained for body height, body mass, BMI, triceps, subscapular, abdominal, thigh, and calf skinfolds, and chest, abdominal, thigh, and calf circumference. The total duration of the program was 12 weeks, with a frequency of 2 hours/week (24 sessions). The individual session lasted 60 minutes, and the intensity ranged from 60 % HRmax to 80 %. The findings from the present study suggest that the 12-week aerobic endurance running program induced changes in morphological characteristics of female adolescents. The significant reductions in body mass and BMI were small for normal-weight adolescents (-2,64 % and -3,48 %) and moderate for overweight adolescents (-4,14 % and -4,36 %) following the experimental program. The magnitude of reductions in the skinfold thickness was small for both groups (triceps, subscapular, abdominal, and calf) and moderate for thigh skinfold and a sum of skinfolds in the overweight group. The reductions in the magnitude of all circular measures were small for both groups. It ranged from - 1.59 % to -2.59 % for normal-weight and from -2.54 % to -3.92 % for overweight adolescents, respectively. Additionally, the effects of the applied program seem more favorable to overweight than normal-weight adolescents. This study's current findings indicate that the 12-week aerobic endurance running program is effective due to improvements in morphological characteristics, body mass, and BMI of female adolescents. Additionally, this study's findings show that applied aerobic endurance running program proved more effective for overweight adolescents.
RESUMEN: Este estudio tuvo como objetivo explorar los efectos de un programa único de carrera de resistencia aeróbica de intensidad moderada sobre las características morfológicas de mujeres adolescentes con peso normal y con sobrepeso y si los efectos difieren entre individuos con diferentes estados nutricionales. Un total de 47 niñas adolescentes participaron en este ensayo controlado aleatorio. Antes y después de 12 semanas de intervención, se obtuvieron mediciones de altura corporal, masa corporal, IMC, tríceps, pliegues cutáneos subescapular, abdominal, muslo y pantorrilla, y circunferencia torácica, abdominal, muslo y pantorrilla. La duración total del programa fue de12 semanas, con una frecuencia de 2 horas/semana (24 sesiones). La sesión individual tuvo una duración de 60 minutos y la intensidad osciló entre el 60 % y el 80 % de la FCmáx. Los hallazgos del presente estudio sugieren que el programa de carrera de resistencia aeróbica de 12 semanas indujo cambios en las características morfológicas de las adolescentes. Las reducciones significativas en la masa corporal y el IMC fueron menores para los adolescentes con peso normal (-2,64 % y -3,48 %) y moderadas para los adolescentes con sobrepeso (-4,14 % y -4,36 %) después del programa experimental. La magnitud de las reducciones en el grosor del pliegue cutáneo fue pequeña para ambos grupos (tríceps, subescapular, abdominal y pantorrilla) y moderada para el pliegue cutáneo del muslo y la suma de los pliegues cutáneos en el grupo con sobrepeso. Las reducciones en la magnitud de todas las medidas circulares fueron pequeñas para ambos grupos. Osciló entre -1,59 % y -2,59 % para normopeso y entre -2,54 % y -3,92 % para adolescentes con sobrepeso, respectivamente. Además, los efectos del programa aplicado parecen más favorables para los adolescentes con sobrepeso que para aquellos de peso normal. Los hallazgos actuales de este estudio indican que el programa de carreras de resistencia aeróbica de 12 semanas es eficaz, debido a las mejoras en las características morfológicas, la masa corporal y el IMC de las adolescentes. Además, los hallazgos de este estudio muestran que el programa de carrera de resistencia aeróbica aplicada demostró ser más efectivo para los adolescentes con sobrepeso.
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Humanos , Femenino , Adolescente , Resistencia Física/fisiología , Carrera/fisiología , Estado Nutricional , Peso Corporal , Ejercicio Físico , Índice de Masa CorporalRESUMEN
Genome sequencing efforts of the last decade have produced a large amount of data, which has enabled whole-genome comparative analyses in order to locate potentially functional elements and study the overall patterns of phylogenetic conservation. In this paper we present a statistically based method for the characterization of these patterns in mammalian DNA sequences. We have applied this approach to the study of exceptionally well conserved homeobox gene clusters (Hox), based on an alignment of six species, and we have constructed a map of Hox cataloguing the conserved fragments, along with their locations in relation to the genes and other landmarks, sometimes showing unexpected layouts.