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1.
Braz J Biol ; 84: e281515, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39109718

RESUMEN

The need to transition to more sustainable agriculture that is adaptable to environmental challenges, reducing dependence on chemical fertilizers and minimizing environmental impact, represents the new paradigm of the moment. In this scenario, studies with the adoption of bioinputs in corn cultivation emerge as a viable option for the sustainability of agricultural activity. Therefore, the objective was to evaluate the effect of doses of neem vegetable cake on the yield components of corn crops. An experimental design was used of randomized blocks was used, consisting of four doses of neem vegetable rendering (3 kg ha-1, 6 kg ha-1, 9 kg ha-1 and 12 kg ha-1) and a treatment control without the presence of organic fertilizer. The result indicates the presence of a significant effect of treatments with the application of neem cake on the main components of corn yield, including grain productivity, suggesting that the high carbon content present in the organic product can induce phytochemical effects and biological changes. in the soil, making it more productive. It was found that, when administering the maximum experimental dose, compared to the control group, there was a significant effect (p≤0.01) of 21.3% on grain productivity, jumping from 2,140 kg ha -1, when did not apply organic fertilizer, to 2,596 kg ha-1 with the application of 12 kg of neem cake per hectare. It is noted that the increase in grain productivity was in the proportion of 38 kg ha-1 of corn for each kilo of neem cake applied. To facilitate interpretation and decision-making, an analysis of the economic viability of neem cake for rainfed corn was also determined, also identifying the maximum experimental dose of 12 kg ha-1, as the most economically viable, providing an increase in profit of around R$ 119.92 per hectare, in relation to the control.


Asunto(s)
Azadirachta , Fertilizantes , Zea mays , Zea mays/crecimiento & desarrollo , Azadirachta/química , Fertilizantes/análisis , Agricultura/métodos , Distribución Aleatoria , Suelo/química
2.
Br Poult Sci ; 65(4): 484-493, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38994721

RESUMEN

1. This study was conducted to assess the effects of different dietary omega 6:3 ratios fed to male and female Japanese quail breeders on incubation performance, chick quality and progeny performance.2. A completely randomised design was used, with five diets containing different ratios of vegetable oils rich in linoleic acid (LA from soybean oil) or α-linolenic acid (ALA from linseed oil) with LA/ALA ratios of 13.75:1, 10.69:1, 7.63:1, 4.57:1 and 1.48:1 with 12 cage replicates containing six birds each.3. There was a quadratic effect of the LA/ALA ratio on total hatchability (p < 0.011), fertile hatchability (p = 0.046) and total mortality (p = 0.046). There was no effect on fertility (p > 0.05). The LA/ALA ratios of 1.48 and 13.75 fed to both hens and cockerels or hens resulted in greater fertility, as measured by the number of days after copulation during which fertile eggs were laid and the number of points of hydrolysis on the perivitelline membrane. A decreasing linear effect (p < 0.0001) was observed on chick length and an increasing linear effect on body weight at 1 day of age. There were no effects on progeny performance.4. The LA/ALA ratio affected yolk mineral matter (p = 0.009), crude protein (p = 0.091), chick mineral matter (p < 0.038) and ether extract (p < 0.0001) contents. Maternal diet affected the fatty acid profile of egg yolk and chick liver, indicating that dietary contents were transferred to eggs and chicks.5. Fertile egg production increased with lower LA/ALA ratios. Therefore, linseed oil can be used together with soybean oil to formulate diets for female Japanese quail obtain LA/ALA ratios between 4:1 and 10:1.


Asunto(s)
Alimentación Animal , Coturnix , Dieta , Ácido Linoleico , Reproducción , Ácido alfa-Linolénico , Animales , Coturnix/fisiología , Femenino , Dieta/veterinaria , Alimentación Animal/análisis , Ácido alfa-Linolénico/administración & dosificación , Ácido alfa-Linolénico/análisis , Masculino , Reproducción/efectos de los fármacos , Ácido Linoleico/administración & dosificación , Fenómenos Fisiológicos Nutricionales de los Animales/efectos de los fármacos , Distribución Aleatoria , Aceite de Linaza/administración & dosificación , Fertilidad/efectos de los fármacos , Suplementos Dietéticos/análisis
3.
J Infect Dev Ctries ; 18(7): 982-986, 2024 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-39078775

RESUMEN

INTRODUCTION: Human rabies (HR) is a lethal zoonotic disease caused by lyssaviruses with increase in the number of cases post-coronavirus disease 2019 (COVID-19) pandemic. METHODOLOGY: We report a case of human rabies in a patient from a rural area of Ceará, northeastern Brazil in 2023, who was bitten by a white-tufted-ear marmoset (Callithrix jacchus jacchus). The patient was co-infected with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) and was diagnosed by minimally invasive autopsy (MIA). RESULTS: MIA offers many advantages related to biosafety, and speed of sample acquisition; and markedly reduces disfigurement of the body compared with complete autopsy. It is a great alternative in COVID-19 patients. CONCLUSIONS: New methods such as MIA are a promising tool for diagnosis, and have the potential to improve family cooperation and support rabies surveillance.


Asunto(s)
Autopsia , COVID-19 , Coinfección , Rabia , SARS-CoV-2 , Humanos , Rabia/diagnóstico , Rabia/patología , COVID-19/diagnóstico , COVID-19/complicaciones , Brasil , Animales , Coinfección/virología , Coinfección/diagnóstico , Masculino , Callithrix , Mordeduras y Picaduras/complicaciones , Persona de Mediana Edad
4.
J Environ Sci Health B ; 59(6): 341-349, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38709203

RESUMEN

The increased consumption of pesticides can have a negative environmental impact by increasing the essential metals to toxic levels. Bordasul® is a commonly used fungicide in Brazil and it is composed of 20% Cu, 10% sulfur, and 3.0% calcium. The study of fungicides in vivo in non-target model organisms can predict their environmental impact more broadly. The Drosophila melanogaster is a unique model due to its ease of handling and maintenance. Here, the potential toxicity of Bordasul® was investigated by assessing the development, survival, and behavior of exposed flies. Exposure to Bordasul® impaired the development (p < 0.01) and caused a significant reduction in memory retention (p < 0.05) and locomotor ability (p < 0.001). Fungicides are needed to assure the world's food demand; however, Bordasul® was highly toxic to D. melanogaster. Therefore, Bordasul® may be potentially toxic to non-target invertebrates and new environmentally-safe biofertilizers have to be developed to preserve the biota.


Asunto(s)
Cobre , Drosophila melanogaster , Fungicidas Industriales , Animales , Drosophila melanogaster/efectos de los fármacos , Fungicidas Industriales/toxicidad , Fungicidas Industriales/farmacología , Cobre/toxicidad , Brasil , Femenino , Masculino , Conducta Animal/efectos de los fármacos
5.
Med Oral Patol Oral Cir Bucal ; 29(3): e398-e407, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38615256

RESUMEN

BACKGROUND: Chemotherapy (CT) is a systemic treatment using a combination of antineoplastic drugs, orally or intravenously, that inhibit tumor growth and fast-growing normal cells. Due to its nonspecificity, chemotherapy can cause a series of adverse effects, such as altered taste (dysgeusia), associated with malnutrition and, consequently, other adverse effects in the gastrointestinal tract and increased mortality risk. This study aimed to evaluate the influence of dysgeusia on the incidence of other adverse effects and overall survival during antineoplastic chemotherapy. MATERIAL AND METHODS: An observational, retrospective, cross-sectional study was conducted using data from the Electronic Health Record system of the Cancer Institute of Ceará over two years. Before the CT session, the multi-professional team evaluated the patient for the presence and severity of adverse effects (AE), using scores from the CTCAE v5.0 scale. Dysgeusia scores were collected and associated with clinical pathological data, with other adverse effects (nausea, vomiting, diarrhea, oral mucositis, anorexia, constipation), and with overall survival. Chi-square and Mantel-Cox log-rank tests were used. RESULTS: Of 5744 patients evaluated, dysgeusia presented a frequency of 50.6%, being directly associated with female gender (p=0.001), overweight (p=0.022), high tumor stages (p=0.009), a combination of adjuvant and neoadjuvant (p=0.010) and four-year survival (p=0.030). Dysgeusia frequency was directly associated with diarrhea (p<0.001), anorexia (p<0.001), oral mucositis (p<0.001), nausea (p<0.001), constipation (p<0.001) and vomiting (p<0.001), and inversely associated with fatigue (p=0.035). CONCLUSIONS: Dysgeusia during CT increases the risk of other adverse effects and negatively impacts prognosis.


Asunto(s)
Antineoplásicos , Disgeusia , Neoplasias , Humanos , Disgeusia/inducido químicamente , Disgeusia/epidemiología , Estudios Transversales , Masculino , Femenino , Estudios Retrospectivos , Persona de Mediana Edad , Neoplasias/tratamiento farmacológico , Neoplasias/complicaciones , Anciano , Antineoplásicos/efectos adversos , Antineoplásicos/uso terapéutico , Adulto , Tasa de Supervivencia , Anciano de 80 o más Años , Adulto Joven , Adolescente
6.
Braz J Med Biol Res ; 57: e13205, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38656071

RESUMEN

Acute diarrhea is the second leading cause of morbidity and mortality attributed to infections in children under five years of age worldwide, with 1.7 million annual estimated cases and more than 500,000 deaths. Although hydroelectrolytic replacement is the gold standard in treating diarrhea, it does not interfere with the restoration of the intestinal microbiota. Several studies have searched for an adequate alternative in restructuring intestinal homeostasis, finding that treatments based on probiotics, prebiotics, and synbiotics are effective, which made such treatments increasingly present in clinical practice by reducing illness duration with minimal side effects. However, there are still controversies regarding some unwanted reactions in patients. The diversity of strains and the peculiarities of the pathogens that cause diarrhea require further studies to develop effective protocols for prevention and treatment. Here, we provide a descriptive review of childhood diarrhea, emphasizing treatment with probiotics, prebiotics, and synbiotics.


Asunto(s)
Diarrea , Prebióticos , Probióticos , Simbióticos , Humanos , Probióticos/uso terapéutico , Simbióticos/administración & dosificación , Prebióticos/administración & dosificación , Diarrea/microbiología , Diarrea/terapia , Diarrea/prevención & control , Niño , Microbioma Gastrointestinal/fisiología , Preescolar
7.
Exp Brain Res ; 242(5): 1175-1190, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38499659

RESUMEN

Parkinson's disease is a degenerative, chronic and progressive disease, characterized by motor dysfunctions. Patients also exhibit non-motor symptoms, such as affective and sleep disorders. Sleep disorders can potentiate clinical and neuropathological features and lead to worse prognosis. The goal of this study was to evaluate the effects of sleep deprivation (SD) in mice submitted to a progressive pharmacological model of Parkinsonism (chronic administration with a low dose of reserpine). Male Swiss mice received 20 injections of reserpine (0.1 mg/kg) or vehicle, on alternate days. SD was applied before or during reserpine treatment and was performed by gentle handling for 6 h per day for 10 consecutive days. Animals were submitted to motor and non-motor behavioral assessments and neurochemical evaluations. Locomotion was increased by SD and decreased by reserpine treatment. SD during treatment delayed the onset of catalepsy, but SD prior to treatment potentiated reserpine-induced catalepsy. Thus, although SD induced an apparent beneficial effect on motor parameters, a delayed deleterious effect on alterations induced by reserpine was found. In the object recognition test, both SD and reserpine treatment produced cognitive deficits. In addition, the association between SD and reserpine induced anhedonic-like behavior. Finally, an increase in oxidative stress was found in hippocampus of mice subjected to SD, and tyrosine hydroxylase immunoreactivity was reduced in substantia nigra of reserpine-treated animals. Results point to a possible late effect of SD, aggravating the deficits in mice submitted to the reserpine progressive model of PD.


Asunto(s)
Modelos Animales de Enfermedad , Trastornos Parkinsonianos , Reserpina , Privación de Sueño , Animales , Masculino , Reserpina/farmacología , Privación de Sueño/complicaciones , Ratones , Trastornos Parkinsonianos/inducido químicamente , Trastornos Parkinsonianos/fisiopatología , Catalepsia/inducido químicamente , Estrés Oxidativo/fisiología , Estrés Oxidativo/efectos de los fármacos , Tirosina 3-Monooxigenasa/metabolismo , Actividad Motora/fisiología , Actividad Motora/efectos de los fármacos , Reconocimiento en Psicología/fisiología , Reconocimiento en Psicología/efectos de los fármacos , Anhedonia/fisiología , Anhedonia/efectos de los fármacos
9.
Brain Sci ; 14(2)2024 Feb 02.
Artículo en Inglés | MEDLINE | ID: mdl-38391730

RESUMEN

Despite recent efforts to search for biomarkers for the pre-symptomatic diagnosis of Parkinson's disease (PD), the presence of risk factors, prodromal signs, and family history still support the classification of individuals at risk for this disease. Human epidemiological studies are useful in this search but fail to provide causality. The study of well-known risk factors for PD in animal models can help elucidate mechanisms related to the disease's etiology and contribute to future prevention or treatment approaches. This narrative review aims to discuss animal studies that investigated four of the main risk factors and/or prodromal signs related to PD: advanced age, male sex, sleep alterations, and depression. Different databases were used to search the studies, which were included based on their relevance to the topic. Although still in a reduced number, such studies are of great relevance in the search for evidence that leads to a possible early diagnosis and improvements in methods of prevention and treatment.

10.
Braz J Biol ; 84: e279163, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38422296

RESUMEN

The main objective of this study was to evaluate the biometric relationships between the species Bagre bagre, Lutjanus synagris and Nebris microps and their otoliths. The relationship between the size of the otolith (length and weight) and the size of the fish (standard length and total weight) was determined using the linear regression model (y = a + bx). For the morphological description, the otoliths of three specimens were selected by standard length class (10mm). The morphological characters analyzed were chosen according to traditional literature. Three hundred eight specimens of B. bagre, 200 of L. synagris and 237 of N. microps were analyzed. Throughout the collection period, the source of the capture of individuals was the municipality of Raposa. The linear correlations for fish and otolith length for B. bagre were 0.9129 and 0.9652, respectively. For L. synagris, the coefficients were 0.8634 and 0.8672, while for N. microps, 0.9597 and 0.8636, respectively. The morphological classification of L. synagris and N. microps is of the Saggita type, and the B. bagre species is of the Lapillus type. From the data presented here, it is possible to observe that otolith morphometric and morphological data can serve as a parameter to estimate the relationship between the fish and the otolith in terms of its biomass and the length of an individual and a population.


Asunto(s)
Bagres , Perciformes , Animales , Membrana Otolítica/anatomía & histología , Brasil
11.
Braz. j. med. biol. res ; 57: e13205, fev.2024. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1557322

RESUMEN

Abstract Acute diarrhea is the second leading cause of morbidity and mortality attributed to infections in children under five years of age worldwide, with 1.7 million annual estimated cases and more than 500,000 deaths. Although hydroelectrolytic replacement is the gold standard in treating diarrhea, it does not interfere with the restoration of the intestinal microbiota. Several studies have searched for an adequate alternative in restructuring intestinal homeostasis, finding that treatments based on probiotics, prebiotics, and synbiotics are effective, which made such treatments increasingly present in clinical practice by reducing illness duration with minimal side effects. However, there are still controversies regarding some unwanted reactions in patients. The diversity of strains and the peculiarities of the pathogens that cause diarrhea require further studies to develop effective protocols for prevention and treatment. Here, we provide a descriptive review of childhood diarrhea, emphasizing treatment with probiotics, prebiotics, and synbiotics.

12.
Braz. j. med. biol. res ; 57: e13913, fev.2024. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1568972

RESUMEN

Considering the lack of consensus related to the impact of selective IL-6 receptor inhibition on bone remodeling and the scarcity of reports, especially on large bone defects, this study proposed to evaluate the biological impact of the selective inhibitor of interleukin-6 receptor (tocilizumab) in an experimental model of critical calvarial defect in rats. In this preclinical and in vivo study, 24 male Wistar rats were randomly divided into two groups (n=12/group): defect treated with collagen sponge (CG) and defect treated with collagen sponge associated with 2 mg/kg tocilizumab (TCZ). The defect in the parietal bone was created using an 8-mm diameter trephine drill. After 90 days, the animals were euthanized, and tissue samples (skull caps) were evaluated through micro-CT, histological, immunohistochemistry, cytokines, and RT-qPCR analyses. Tocilizumab reduced mononuclear inflammatory infiltration (P<0.05) and tumor necrosis factor (TNF)-α levels (P<0.01) and down-regulated tissue gene expression of BMP-2 (P<0.001), RUNX-2 (P<0.05), and interleukin (IL)-6 (P<0.05). Moreover, it promoted a stronger immunostaining of cathepsin and RANKL (P<0.05). Micro-CT and histological analyses revealed no impact on general bone formation (P>0.05). The bone cells (osteoblasts, osteoclasts, and osteocytes) in the defect area were similar in both groups (P>0.05). Tocilizumab reduced inflammatory cytokines, decreased osteogenic protein, and increased proteases in a critical bone defect in rats. Ninety days after the local application of tocilizumab in the cranial defect, we did not find a significant formation of bone tissue compared with a collagen sponge.

13.
Animal ; 18(2): 101071, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38262856

RESUMEN

Differences and/or similarities in the influence of sex class for hair sheep requirements remain inconclusive. Knowledge of energy requirements allows well-formulated diets to be provided which is crucial for improving animal production. We aimed to determine the effect of sex class on the net energy requirements of growing hair sheep in a multi-study approach. We used a data set composed of individual measurements of 382 hair sheep (299 non-castrated and 83 castrated males) from 11 studies that used the methodology of comparative slaughter. Net energy requirements for maintenance (NEm) were obtained by the regression between heat production and metabolizable energy intake. The metabolizable energy requirements for maintenance (MEm) were calculated by the iterative method, and the efficiency of use of metabolizable energy for maintenance (km) was obtained by NEm divided by MEm. The net energy requirements for gain (NEg) were estimated from retained energy (RE) against empty BW gain (EBWG). The efficiency of energy use for weight gain (kg) was obtained from the relationship between RE and the energy metabolizable intake for gain, removing the intercept. There was an effect of sex on NEg and two equations were generated: NEg (MJ/day) = 1.040 (±0.04055) × EBW0.75 × EBWG0.8767(±0.03293) and NEg (MJ/day) = 1.040 (±0.04055) × EBW0.75 × EBWG0.8300(±0.03468) (R2 = 0.86; MSE = 0.0037; AIC = -468.0) for non-castrated and castrated males, respectively. Sex class did not affect kg (P > 0.05) and one kg was generated (0.29). Sex did not affect kprotein (P = 0.14) and kfat (P = 0.32), assuming an average deposition efficiency of 0.27 for protein and 0.78 for fat. The NEm and MEm did not differ (P > 0.05) between sex classes, with a value of 0.272 and 0.427 MJ/kg0.75 EBW per day, respectively. The km observed was 0.64. In conclusion, non-castrated and castrated male hair sheep have similar maintenance energy requirements although energy requirements for gain differed among them. The Committees overestimate the gain and maintenance requirements for hair sheep. Therefore, the equations generated in this study are recommended.


Asunto(s)
Alimentación Animal , Metabolismo Energético , Animales , Masculino , Ovinos , Alimentación Animal/análisis , Composición Corporal , Dieta/veterinaria , Ingestión de Energía , Necesidades Nutricionales , Oveja Doméstica , Peso Corporal
14.
Rhinology ; 62(1): 101-110, 2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-37864409

RESUMEN

BACKGROUND: Inhibitors of apoptosis proteins (IAPs) modulate the inflammatory process, and may facilitate the formation of chronic rhinosinusitis with nasal polyps (CRSwNP). This study aimed to observe if IAPs were differently expressed between patients with CRSwNP and controls, and to correlate the expression of IAPs with some inflammatory markers, as with the response to nasal corticosteroids in patients with CRSwNP. METHODOLOGY: We obtained nasal biopsies from patients with CRSwNP (n=27) and controls (n=16). qRT-PCR measured the expression of IAPs and caspases, while Luminex assay measured the concentration of cytokines. Unpaired parametric tests and Principal Component Analysis (PCA) were used for statistical analysis. RESULTS: We observed lower expression of IAP genes (XIAP, BIRC2/IAP1, and BIRC3/IAP2) in CRSwNP patients compared to controls, and we identified that patients with bad response to corticosteroids presented lower levels of BIRC2/IAP1, XIAP, BCL2, CASP9, and IL-17, and higher levels of CASP7 and TGF-B. CONCLUSIONS: IAPs expression was downregulated in CRSwNP, and was associated with poorer response to nasal corticosteroids. The present findings suggest the importance of IAPs as a link between environment and the host inflammatory responses, and this pathway could be explored as a potential new target therapy for patients with CRSwNP.


Asunto(s)
Pólipos Nasales , Rinitis , Rinosinusitis , Sinusitis , Humanos , Pólipos Nasales/complicaciones , Pólipos Nasales/tratamiento farmacológico , Pólipos Nasales/genética , Citocinas/metabolismo , Sinusitis/complicaciones , Sinusitis/tratamiento farmacológico , Sinusitis/metabolismo , Apoptosis , Corticoesteroides , Enfermedad Crónica , Rinitis/complicaciones , Rinitis/tratamiento farmacológico , Rinitis/metabolismo
15.
Rhinology ; 62(1): 55-62, 2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-37772802

RESUMEN

BACKGROUND: Although the COVID-19 pandemic has increased the prevalence of cases with olfactory loss, other respiratory viruses can also cause this condition. We aimed to compare the prevalence of acute SARS-CoV-2 infection and other respiratory viruses in patients with sudden smell loss, and to assess the impact of SARS-CoV-2 viral load and co-infection on olfactory symptoms. METHODS: Patients with sudden smell loss were recruited in a multicenter prospective cohort study in 15 hospitals in Brazil. Clinical questionnaire, Connecticut Chemosensory Clinical Research Center (CCCRC) olfactory test and nasopharyngeal swab to perform a PCR-based respiratory viral panel were collected at first visit (day 0) and 30 and 60 days after recruitment. RESULTS: 188 of 213 patients presented positive test result for SARS-CoV-2, among which 65 were co-infected with other respiratory viruses (e.g., rhinovirus, enterovirus, and parainfluenza). 25 had negative test results for SARS-CoV-2. Patients in both SARSCoV-2 and non-SARS-CoV-2 groups had objective anosmia (less than 2 points according to the psychophysical olfactory CCCRC) at day 0, with no significant difference between them. Both groups had significant smell scores improvement after 30 and 60 days, with no difference between them. Co-infection with other respiratory viruses, and SARS-CoV-2 viral load did not impact olfactory scores. CONCLUSION: Patients with sudden smell loss associated with SARS-CoV-2 and other respiratory viruses had similar presentation, with most participants initiating with anosmia, and total or near total recovery after 60 days. SARS-CoV-2 viral load and co-infections with other respiratory viruses were not associated with poorer olfactory outcomes.


Asunto(s)
COVID-19 , Coinfección , Trastornos del Olfato , Humanos , SARS-CoV-2 , COVID-19/complicaciones , Anosmia/complicaciones , Anosmia/epidemiología , Estudios Prospectivos , Pandemias , Coinfección/complicaciones , Coinfección/epidemiología , Trastornos del Olfato/diagnóstico , Trastornos del Olfato/epidemiología , Trastornos del Olfato/etiología , Olfato
16.
Med Oral Patol Oral Cir Bucal ; 29(2): e248-e254, 2024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-37992137

RESUMEN

BACKGROUND: This study retrospectively analyzed the risk factors for oral mucositis (OM) during cetuximab treatment. MATERIAL AND METHODS: We screened patients using cetuximab and retrospectively evaluated the presence of OM based on medical records. We collected information from 2 years of evaluations. Patient medical records were reviewed to obtain data on chemotherapy cycle and dose, sex, age, primary tumor, TNM stage, and head and neck radiotherapy (HNR) history. The X2 test and multinomial logistic regression were used for statistical analysis (SPSS 20.0, p < 0.05). RESULTS: Among 1831 patients, OM was showed in 750 in any grade (41%), during cetuximab treatment. Most patients were female (n=944, 51.6%), <70years-old (n=1149, 62.8%), had larynx cancer (n=789, 43.1%) in T4 (n=579, 47.7%), N0 (n=509, 52.6%) stages. Primary tumor surgery was performed in 1476 (80.6%) patients, radiotherapy in 606 (33.1%) patients and cetuximab protocols most used involved up to four cycles (n=1072, 58.5%) of <400mg (n=996, 54.4%) cetuximab doses. Female (OR [odds ratio] = 2.17, CI95% = 1.26-3.75), >70 years-old patients (OR = 16.02, CI95% = 11.99-21.41), with HHNR (OR = 1.84, 1.41-2.40), treated with >4 cycles (OR = 1.52, CI95% = 1.16-2.01) and high doses of cetuximab (OR = 3.80, CI95% = 2.52-5.71) are the greatest risk factors for OM. CONCLUSIONS: Since the clinical benefit of cetuximab in the treatment of older patients is limited and there is a high OM, especially in women with head and neck treated with radiotherapy, high doses and a high number of cetuximab cycles must be administered with caution.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias de Cabeza y Cuello , Estomatitis , Humanos , Femenino , Anciano , Masculino , Cetuximab/efectos adversos , Estudios Retrospectivos , Estudios Transversales , Tratamiento Insuficiente , Carcinoma de Células Escamosas/patología , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Neoplasias de Cabeza y Cuello/complicaciones , Estomatitis/inducido químicamente , Factores de Riesgo
17.
J Biomed Mater Res B Appl Biomater ; 112(1): e35314, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-37565785

RESUMEN

The development and evaluation of synthesis materials are crucial to reducing the morbidity and magnitude of post-enterorrhaphy surgical complications. Despite the possibility of production, chitosan thread has not yet been used in enterorrhaphy, and its effects on intestinal healing have not been evaluated. Therefore, this study aimed to evaluate the effects of chitosan thread on the intestinal wall repair of rabbits submitted to cecorrhaphy. For this, 42 rabbits were allocated into two groups with 21 animals. One group was submitted to cecorrhaphy with chitosan suture thread (CG) and the other with poliglecaprone suture thread (PG). The occurrence of postoperative complications, the intensity of edema, cellular response, formation of granulation tissue, as well as the deposition and maturation of collagen fibers, and the intensity of vascular endothelial growth factor (VEGF-α) expression, were evaluated during the intestinal wall repair process. The evaluations occurred on the 5th, 15th, and 25th postoperative (PO) days. The animals did not develop peritonitis, but adherence was observed in six animals from CG and seven from PG, with no difference between groups. The polymorphonuclear infiltrate showed higher intensity and higher amount of type III collagen fibers in CG on the 15th PO day. In contrast, a lower amount of type I collagen fibers was observed in CG samples on the 25th PO day. Therefore, the chitosan thread used for cecorrhaphy in rabbits results in minimal postoperative complications, presents biocompatibility, and bioactively assists the tissue repair process of the cecal wall, inducing minimal tissue reaction, stimulating the deposition of type III collagen fibers in the proliferative phase, with sustained VEGF-α expression, but with reduced deposition of type I fibers, indicating a delay in collagen maturation.


Asunto(s)
Quitosano , Animales , Conejos , Factor A de Crecimiento Endotelial Vascular/metabolismo , Cicatrización de Heridas , Colágeno Tipo III , Colágeno , Complicaciones Posoperatorias
18.
Eur J Prosthodont Restor Dent ; 32(1): 56-64, 2024 Feb 29.
Artículo en Inglés | MEDLINE | ID: mdl-37721553

RESUMEN

INTRODUCTION: The association of the periodontium with the fixed prosthesis is the basis of prosthetic rehabilitation. This prospective case series aimed to evaluate periodontal health through the relation between periodontal/peri-implant disease progression and the use of fixed partial dentures (FPDs). METHODS: Probing depth (PD), clinical attachment level (CAL), gingival index (GI), and plaque index (PI) on either teeth or implants were evaluated at up to 25-year follow-up and compared with the baseline. Statistical analysis was performed using the Kaplan-Meier test (p⟨0.05). RESULTS: The prospective evaluation showed that the patients maintained adequate periodontal health. Failure (severe periodontal stages) occurred in 12.5% of patients. The survival rate for 107 teeth/implants was 80.48%. The comparisons for clinical parameters revealed no statistically significant difference (p⟩ 0.05). At T1, the measurements for anterior and posterior regions, respectively, were PD =2.7mm and 3.1mm; CAL= 3.3mm and 3.6mm; GI=0.5 (both regions); and PI=0.79 and 0.62. Periodontal/peri-implant disease progression did not relate to the use of prostheses. CONCLUSIONS: Patients with more frequent follow-up appointments and lower GI and PI showed periodontal health for longer periods. Patients with different oral hygiene levels present different periodontal disease progression. Periodic hygiene control and motivation are vital factors for extensive oral rehabilitation success.


Asunto(s)
Implantes Dentales , Periimplantitis , Enfermedades Periodontales , Humanos , Implantes Dentales/efectos adversos , Enfermedades Periodontales/inducido químicamente , Dentadura Parcial Fija , Estudios de Seguimiento
19.
J Endocrinol Invest ; 47(2): 307-314, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37351836

RESUMEN

PURPOSE: The aim of this study was to analyze the relationship between adiposity, cardiometabolic risk and cardiorespiratory fitness (CRF) according to different groups of adiponectin concentration. METHODS: 255 adolescents of both sexes, aged 11-17 years old, participated. Anthropometric and biochemical parameters such as body mass, height, abdominal circumference (AC), waist circumference (WC), fat mass, fat-free mass, total cholesterol (TC), high-density lipoprotein (HDL-c), low-density lipoprotein (LDL-c), triglycerides (TG), glucose, insulin, adiponectin, blood pressure, peak oxygen consumption (VO2peak) were measured. Body mass index (BMI), z-score BMI (BMI-z), triponderal mass index (TMI), waist-to-height ratio (WHtR), homeostasis model to assessment insulin resistance (HOMA-IR), and quantitative insulin sensitivity check index (QUICKI) were calculated. Adiponectin was categorized: low adiponectin concentration (LAC ≤ 5.18 µg/mL-1), intermediate (IAC = 5.18 and 7.63 µg/mL-1) and high (HAC ≥ 7.63 µg/ml-1). RESULTS: LAC showed higher BMI, BMI-z and TMI than the other groups (p < 0.05) and higher AC, WC and WHtR that the HAC (p < 0.05). IAC showed lower values of TC, LDL-c and TG, and the LAC presented the highest values of insulin, HOMA-IR and QUICKI (p < 0.05) to the IAC and HAC. HAC presented the lower VO2peak than the other groups (p < 0.01). BMI, TMI, glucose, insulin, HOMA-IR showed inverse, and QUICKI a direct and weak correlation with adiponectin (p < 0.05). No significant association was found between adiponectin and VO2peak (p > 0.05). CONCLUSION: The LAC group had higher means in the anthropometric variables and the worst results related to insulin resistance and sensitivity. Thus, adiponectin may play an important role in obesity and reduced concentration may be a factor in the development of obesity-associated morbidities.


Asunto(s)
Capacidad Cardiovascular , Resistencia a la Insulina , Adolescente , Niño , Femenino , Humanos , Masculino , Adiponectina , Antropometría/métodos , Índice de Masa Corporal , LDL-Colesterol , Glucosa , Insulina , Obesidad , Factores de Riesgo , Triglicéridos , Circunferencia de la Cintura
20.
Med Oral Patol Oral Cir Bucal ; 29(2): e280-e287, 2024 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-38150606

RESUMEN

BACKGROUND: There is no consensus about effective systemic therapy for salivary gland carcinomas (sgcs). Our aim was summarized the clinical trials assessing the systemic therapies (ST) on sgcs. MATERIAL AND METHODS: Electronic searches were carried out through MEDLINE/pubmed, EMBASE, Scopus, Web of Science, and the Cochrane Library databases, and gray literature. RESULTS: Seventeen different drugs were evaluated, and the most frequent histological subtype was adenoid cystic carcinoma (n=195, 45.5%). Stable disease, observed in 11 ST, achieved the highest rate in adenoid cystic carcinoma treated with sunitinib. The highest complete (11.1%) and partial response (30.5%) rates were seen in androgen receptor-positive tumors treated with leuprorelin acetate. CONCLUSIONS: Despite all the advances in this field, there is yet no effective evidence-based regimen of ST, with all the clinical trials identified showing low rates of complete and partial responses. Further, translational studies are urgently required to characterize molecular targets and effective ST.


Asunto(s)
Carcinoma Adenoide Quístico , Neoplasias de las Glándulas Salivales , Humanos , Carcinoma Adenoide Quístico/tratamiento farmacológico , Neoplasias de las Glándulas Salivales/tratamiento farmacológico , Bases de Datos Factuales , Glándulas Salivales
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