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OBJECTIVE: Limited recent evidence exists regarding weight-reduction preferences among people with obesity in the United States (US). We assessed preferred magnitudes of weight reduction among adults with obesity and how these preferences differ by participant characteristics. METHODS: The Perceptions, Barriers, and Opportunities for Anti-obesity Medications in Obesity Care: A Survey of Patients, Providers and Employers was a cross-sectional study assessing perceptions of obesity and anti-obesity medications among people with obesity, healthcare providers, and employers in the US. Adults with obesity and overweight with obesity-related complications self-reported current weight and weight they associated with 5 preferences ("dream," "goal," "happy," "acceptable," and "disappointed.") Preferred percent weight reductions for each preference were calculated. Multivariable regression analyses were performed identifying associations between weight-reduction preferences and participant characteristics. RESULTS: The study included 1007 participants (women: 63.6%; White: 41.0%; Black or African American: 28.9%; Asian: 6.5%; Hispanic: 15.3%; and median body mass index (BMI): 34.2 kg/m2). Median preferred percent weight reductions were dream = 23.5%; goal = 16.7%; happy = 14.6%; acceptable = 10.3%; and disappointed = 4.8%. Women reported higher preferred weight reductions than men. Preferred weight reductions among Black/African American participants were lower than White participants. Regression analyses indicated significant associations, with higher preferred magnitudes of weight reduction within females, higher weight self-stigma, and BMI class in Hispanic participants compared to White. CONCLUSION: In this large, real-world study, preferred magnitudes of weight reduction exceeded outcomes typically achieved with established nonsurgical obesity treatments but may be attained with bariatric procedures and newer and emerging anti-obesity medications. Respecting patients' preferences for treatment goals with obesity management could help support shared decision-making. Evaluating for an individual's contributors to weight preferences, such as weight self-stigma, can further benefit holistic obesity care.
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Industrialization, civilization and human activities have all grown steadily in recent years. As a result, small and large industries discharge many organic pollutants into the environment and contribute to environmental pollution. These compounds are quite stable and challenging to break down over time, posing a long-term risk. The heterogeneous advanced oxidation processes technology has gained tremendous attention. It depends on the light-induced formation of e-/h+ pairs, which combine with water and aqueous oxygen to generate highly reactive hydroxyl radicals that degrade the organic pollutants in a solution and convert them ultimately into non-toxic products. In this paper, the synergetic impact of TiO2-SnO2 coupling with other semiconductor materials and their photodegradation performance on toxic contaminants in an aqueous medium has been reviewed. In addition, multiple approaches for the synthesis of TiO2-SnO2 photocatalysts have been discussed. Among them, hydrothermal, sol-gel, electrospinning, precipitation and even their combination are extensively used to synthesize various forms of nanostructures. These techniques demonstrate better tunability for visible absorption, suppression of e-/h+ pair recombination and enhanced e-/h+ separation to improve photocatalytic performance. This paper also summarises the role of different operating factors such as catalyst loading, pH, pollutants variation concentration, various light sources and oxidizing agents on the photodegradation of organic pollutants.
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Corantes , Poluentes Ambientais , Catálise , Humanos , Fotólise , TitânioRESUMO
Colonization by the microbiota provides one of our most effective barriers against infection by pathogenic microbes. The microbiota protects against infection by priming immune defenses, by metabolic exclusion of pathogens from their preferred niches, and through direct antimicrobial antagonism. Disruption of the microbiota, especially by antibiotics, is a major risk factor for bacterial pathogen colonization. Restoration of the microbiota through microbiota transplantation has been shown to be an effective way to reduce pathogen burden in the intestine but comes with a number of drawbacks, including the possibility of transferring other pathogens into the host, lack of standardization, and potential disruption to host metabolism. More refined methods to exploit the power of the microbiota would allow us to utilize its protective power without the drawbacks of fecal microbiota transplantation. To achieve this requires detailed understanding of which members of the microbiota protect against specific pathogens and the mechanistic basis for their effects. In this review, we will discuss the clinical and experimental evidence that has begun to reveal which members of the microbiota protect against some of the most troublesome antibiotic-resistant pathogens: Klebsiella pneumoniae, vancomycin-resistant enterococci, and Clostridioides difficile.
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Clostridioides difficile , Microbiota , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Klebsiella pneumoniaeRESUMO
Data suggest that nutrient order during a meal significantly impacts postprandial glucose and insulin excursions in type 2 diabetes, while its effects in prediabetes have not been reported. Fifteen participants with prediabetes consumed the same meal on 3 days in random order: carbohydrate first, followed 10 minutes later by protein and vegetables (CF); protein and vegetables first, followed 10 minutes later by carbohydrate (PVF); or vegetables first followed by protein and carbohydrate (VF). Blood was sampled for glucose and insulin measurements at 0, 30, 60, 90, 120, 150 and 180 minutes. Incremental glucose peaks were similarly attenuated by >40% in the PVF and VF meal conditions compared with CF. The incremental area under the curve for glucose was 38.8% lower following the PVF meal order, compared with CF, and postprandial insulin excursions were significantly lower in the VF meal condition compared with CF. The CF meal pattern showed marked glycaemic variability whereas glucose levels were stable in the PVF and VF meal conditions. Food order presents a novel, simple behavioural strategy to reduce glycaemic excursions in prediabetes.
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Glicemia/metabolismo , Comportamento Alimentar/fisiologia , Hiperglicemia/etiologia , Refeições/fisiologia , Estado Pré-Diabético/sangue , Adulto , Idoso , Estudos Cross-Over , Feminino , Humanos , Hiperglicemia/sangue , Insulina/sangue , Masculino , Pessoa de Meia-Idade , Período Pós-Prandial , Estado Pré-Diabético/complicações , Estudos RetrospectivosRESUMO
Obesity management requires a multidisciplinary approach, as there are many factors that contribute to the development of obesity, as well as the preservation of excess weight once it has been gained. Diet, exercise, and behavior modification are key components of treatment. In addition to lifestyle changes, weight gain secondary to medications is an important modifiable risk factor. Even after appropriate lifestyle modification, and medication adjustments (where possible) to avoid agents that can contribute to weight gain, many patients are still unable to achieve clinically meaningful weight loss. Pharmacotherapy for obesity management can fill an important role for these patients. This article will review medications that can lead to weight gain and potential alternatives, currently approved anti-obesity medications and best practices to individualize the selection process, and the use of testosterone in men with hypogonadism and obesity.
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Androgênios/uso terapêutico , Fármacos Antiobesidade/uso terapêutico , Bupropiona/uso terapêutico , Naltrexona/uso terapêutico , Obesidade/tratamento farmacológico , Testosterona/uso terapêutico , Aumento de Peso/efeitos dos fármacos , Fármacos Antiobesidade/administração & dosagem , Antidepressivos/efeitos adversos , Anti-Hipertensivos/efeitos adversos , Antipsicóticos/efeitos adversos , Depressores do Apetite/uso terapêutico , Benzazepinas/uso terapêutico , Bupropiona/administração & dosagem , Combinação de Medicamentos , Frutose/análogos & derivados , Frutose/uso terapêutico , Humanos , Hipoglicemiantes/efeitos adversos , Hipogonadismo/complicações , Hipogonadismo/tratamento farmacológico , Lactonas/uso terapêutico , Liraglutida/uso terapêutico , Naltrexona/administração & dosagem , Obesidade/complicações , Orlistate , Fentermina/uso terapêutico , TopiramatoRESUMO
Obesity is a growing epidemic in the USA with over one third of adults presently classified as obese. Obesity-related comorbidities include many leading causes of preventable death such as heart disease, stroke, type 2 diabetes, and certain types of cancer. Modest weight loss of 5-10 % of body weight is sufficient to produce clinically relevant improvements in cardiovascular disease risk factors among patients with overweight and obesity. Until recently, there were limited pharmacologic options approved by the Food and Drug Administration to treat obesity. Phentermine/topiramate ER and lorcaserin were approved in 2012, and naltrexone SR/bupropion SR and liraglutide 3.0 mg were approved in 2014. This article reviews recent literature in the field of Obesity Medicine and highlights important findings from clinical trials. Future directions in the pharmacologic management of obesity are presented along with new diabetes medications that promote weight loss and reduce cardiovascular mortality.
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Fármacos Antiobesidade/uso terapêutico , Obesidade/tratamento farmacológico , Peso Corporal , Comorbidade , Diabetes Mellitus Tipo 2/etiologia , Humanos , Obesidade/complicações , Obesidade/epidemiologia , Redução de Peso/efeitos dos fármacosRESUMO
Gene targeting is a genetic technique to modify an endogenous DNA sequence in its genomic location via homologous recombination (HR) and is useful both for functional analysis and gene therapy applications. HR is inefficient in most organisms and cell types, including mammalian cells, often limiting the effectiveness of gene targeting. Therefore, increasing HR efficiency remains a major challenge to DNA editing. Here, we present a new concept for gene correction based on the development of DNA aptamers capable of binding to a site-specific DNA binding protein to facilitate the exchange of homologous genetic information between a donor molecule and the desired target locus (aptamer-guided gene targeting). We selected DNA aptamers to the I-SceI endonuclease. Bifunctional oligonucleotides containing an I-SceI aptamer sequence were designed as part of a longer single-stranded DNA molecule that contained a region with homology to repair an I-SceI generated double-strand break and correct a disrupted gene. The I-SceI aptamer-containing oligonucleotides stimulated gene targeting up to 32-fold in yeast Saccharomyces cerevisiae and up to 16-fold in human cells. This work provides a novel concept and research direction to increase gene targeting efficiency and lays the groundwork for future studies using aptamers for gene targeting.
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Aptâmeros de Nucleotídeos/química , Marcação de Genes , DNA/química , Desoxirribonucleases de Sítio Específico do Tipo II/genética , Células HEK293 , Humanos , Conformação de Ácido Nucleico , Proteína Rad52 de Recombinação e Reparo de DNA/fisiologia , Saccharomyces cerevisiae/genética , Proteínas de Saccharomyces cerevisiae/genética , Proteínas de Saccharomyces cerevisiae/fisiologia , Homologia de Sequência do Ácido NucleicoRESUMO
CONTEXT: Pisonia aculeata leaves (Nyctagenaceae), a Folk medicinal plant used in the treatment of several inflammation, pain, and oxidative stress associated diseases. OBJECTIVE: To evaluate anti-inflammatory, analgesic, and antioxidant potential of crude methanol extract of P. aculeata leaves (MEPA). MATERIALS AND METHODS: Analgesic and anti-inflammatory activities of MEPA (250 and 500 mg/kg) were evaluated using writhing, formalin, hot plate, tail flick, carrageenan-induced paw edema test, and membrane stabilizing activity. Free radical scavenging activity, total phenolic and flavonoid contents of MEPA were also determined using standard methods. RESULTS: Oral administration of MEPA showed significant (p < 0.001) inhibition of paw edema, pronounced at 4 h and 5 h after carrageenan injection, and at 200 µg/mL exerts 77.67 and 38.51% protective effect against hypotonic solution and heat induced hemolysis, respectively. MEPA (250 and 500 mg/kg) produced 35.21 and 79.14% inhibition of acetic acid-induced writhing. Furthermore, MEPA (500 mg/kg) inhibited 49.19% early and 73.14% late phase of formalin-induced hypernociception. In contrast, a lower dose of MEPA did not prevent hot plate induced nociception, while in the tail immersion method, pronounced analgesic activity was observed between 1 and 4 h postdosing. The extract possesses significant in vitro antioxidant activity and a lipid peroxidation inhibition effect. Total phenolic and total flavonoid content in MEPA were 87.99 ± 0.87 mg GAE/g and 58.98 ± 0.01 mg QE/g, respectively. DISCUSSION AND CONCLUSION: Our findings confirmed the analgesic, anti-inflammatory and antioxidant activities of Pisonia aculeata leaves. Contents of flavonoids and phenolic compounds in extract could be correlated with its observed biological activities.
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Analgésicos/farmacologia , Anti-Inflamatórios/farmacologia , Antioxidantes/farmacologia , Inflamação/prevenção & controle , Nyctaginaceae , Estresse Oxidativo/efeitos dos fármacos , Dor/prevenção & controle , Ácido Acético , Administração Oral , Analgésicos/administração & dosagem , Analgésicos/química , Analgésicos/isolamento & purificação , Animais , Anti-Inflamatórios/administração & dosagem , Anti-Inflamatórios/química , Anti-Inflamatórios/isolamento & purificação , Antioxidantes/administração & dosagem , Antioxidantes/química , Antioxidantes/isolamento & purificação , Carragenina , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Flavonoides/isolamento & purificação , Formaldeído , Temperatura Alta , Inflamação/induzido quimicamente , Peroxidação de Lipídeos/efeitos dos fármacos , Medicina Tradicional , Metanol/química , Camundongos , Nyctaginaceae/química , Dor/etiologia , Fenóis/isolamento & purificação , Folhas de Planta , Plantas Medicinais , Solventes/química , Fatores de TempoRESUMO
Ectopic pancreatic tissue is called pancreatic choristoma or heterotopia of pancreas. It is a rare entity. We present a case of advanced Ca ovary with omental pancreatic choristoma.
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Several medications can contribute to weight gain. Medication-induced weight gain can have severe health consequences leading to overweight or obesity, or exacerbation of preexisting obesity and the plethora of obesity-related comorbidities. Weight gain due to medications is potentially avoidable by prescribing medications that are either weight neutral or that lead to weight loss, when appropriate. This article reviews the common classes of medications that contribute to weight gain and discusses alternatives to consider.
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Obesidade , Aumento de Peso , Humanos , Obesidade/induzido quimicamente , Obesidade/tratamento farmacológico , Redução de Peso , Doença IatrogênicaRESUMO
Aim: The aim of this study is to comparatively evaluate the serum and salivary high-sensitive C-reactive protein (hs-CRP) in patients with acute myocardial infarction (MI). Subjects and Methods: The study group consisted of 60 patients of whom 30 were MI patients and 30 were controls. Serum hs-CRP was assessed using particle-enhanced immunoturbidimetric assay. Saliva hs-CRP is determined using a microplate reader cum UV photospectrometer from BMG. Results: In this study, levels of both serum and salivary hs-CRP in control and MI patients showed a positive correlation. Saliva can be used as an alternative biofluid to determine hs-CRP in MI patients. Conclusion: Saliva can be used as a alternative biofluid to determine the risk as well as to determine prognosis in acute myocardial infarction.
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This paper reports the development and validation of a new questionnaire to assess students' perceptions of the online learning environment in Indonesia during the COVID-19 pandemic. In total, 669 participants (454 women, 215 men) from various universities were recruited online to complete a 25-item questionnaire. Item factor analysis verified a five-factor model, while multidimensional Rasch analysis showed that all items fit this model and have good reliability. The factors of Access, Interaction, Lecturer Support, Equity, and Investigation formed the valid and reliable Online Classroom Learning Environment Inventory (OCLEI). All aspects of online learning readiness were related to the five factors of the OCLEI, therefore supporting convergent validity. With these results, we concluded that the OCLEI is a novel measure that can be used in future educational research in Indonesia. Limitations and implications are noted.
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INTRODUCTION: Obesity is a chronic, multifactorial condition with devastating health consequences. It was thought that obesity could be controlled with discipline and lifestyle changes, but we now know that the underlying pathophysiology is a dysregulation of the body's energy balance system, controlled by a complex interplay of neural, hormonal, and metabolic pathways. Recognizing obesity as a chronic disease places a greater responsibility on all health care professionals to screen and identify patients at risk and develop long-term tailored treatment plans. AREAS COVERED: This narrative review describes the central and peripheral pathways regulating obesity, the factors contributing to its development and how to effectively manage this disease. EXPERT OPINION: Obesity is a disease with pathophysiologic mechanisms and should be treated accordingly to reduce the significant risk of morbidity and mortality. Lifestyle interventions remain the cornerstones of treatment; however, these measures alone are rarely enough for long-term maintenance of weight loss. Additional interventions, such as pharmacotherapy or bariatric surgery, are indicated for many patients and should be recommended. Treatment considerations should include assessment of comorbidities or risk factors, as many anti-obesity agents and bariatric surgeries also have beneficial effects on other weight-associated comorbidities.Plain language summary: This plain language summary highlights information from a recent scientific article about obesity. Obesity is a disease that leads to excess accumulation of body fat that may negatively affect health. People can check if they have obesity by measuring their body mass index (BMI for short). The BMI is a screening tool to see if you are at risk of obesity. Obesity is defined as a BMI of 30 kg/m2 or higher with lower cut-offs in Asian populations. Obesity is a chronic health condition that leads to a shorter life span. People with obesity have a higher chance of having other health conditions, such as type 2 diabetes, fatty liver disease, heart disease, kidney problems, osteoarthritis, and some types of cancer. It can be hard for people with obesity to lose weight for various reasons. The aim of this article is to help doctors who treat people with obesity understand more about the causes for obesity, as well as the available treatment options, which include lifestyle changes, medicines, and for some people, weight loss surgery.[Figure: see text][Figure: see text][Figure: see text][Figure: see text].
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Fármacos Antiobesidade , Cirurgia Bariátrica , Diabetes Mellitus Tipo 2 , Humanos , Obesidade/complicações , Redução de PesoRESUMO
It is unknown whether weight loss outcomes differ with metformin monotherapy in patients with obesity with or without type 2 diabetes (T2DM)/prediabetes (PreDM). In this retrospective study, 6- or 12-month weight loss outcomes were compared in 222 patients with or without T2DM/preDM who completed metformin monotherapy. Average weight loss was similar between groups, euglycemic vs. T2DM/preDM (6 months: 6.5 [6.0%] vs. 6.5 [6.1%] p = 0.97; 12 months: 7.4 [6.2%] vs. 7.3 [7.7%], p = 0.92). Categorical weight losses (≥5% and ≥10% of baseline weight) were also similar. Comparable clinically significant weight loss was achieved with metformin monotherapy in patients with obesity with or without T2DM/PreDM.
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Diabetes Mellitus Tipo 2 , Hipoglicemiantes , Metformina , Estado Pré-Diabético , Redução de Peso , Diabetes Mellitus Tipo 2/tratamento farmacológico , Humanos , Hipoglicemiantes/uso terapêutico , Metformina/uso terapêutico , Obesidade , Estado Pré-Diabético/tratamento farmacológico , Estudos Retrospectivos , Redução de Peso/efeitos dos fármacosRESUMO
Obesity has been identified as a multifactorial disease with several determinants, including genetic predisposition, environmental influences, dietary patterns, and physical activity factors. Iatrogenic obesity, most commonly medication-induced weight gain, is often overlooked as a contributing factor to a patient's obesity. This article highlights medications known to cause weight gain.
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Antidepressivos/efeitos adversos , Anti-Hipertensivos/efeitos adversos , Antipsicóticos/efeitos adversos , Anticoncepcionais Orais/efeitos adversos , Hipoglicemiantes/efeitos adversos , Doença Iatrogênica , Obesidade/induzido quimicamente , HumanosRESUMO
OBJECTIVE: This study aimed to elucidate medical weight-loss outcomes in patients unexposed or exposed to psychotropic medication(s). METHODS: This retrospective cohort study evaluated weight-loss outcomes of completers treated at an academic weight-management center between April 1, 2014, and April 1, 2016. Patients were classified as either unexposed (not prescribed psychotropic medication) or exposed (prescribed psychotropic medication) based on use of antidepressants, mood stabilizers, or antipsychotics during the study. RESULTS: Of 1,932 patients seen during the study period, 885 were eligible for inclusion, of whom 619 (70.0%) were unexposed and 266 (30.0%) were exposed to psychotropic medications. In the unexposed and exposed groups, the mean age, sex distribution, proportion with type 2 diabetes, initial BMI, and number of weight-loss medications prescribed were similar. At 12 months, the unexposed group lost 1.6% more weight on average than the exposed group (9.1% [SD 7.6%] vs. 7.5% [SD 8.1%], respectively; P = 0.02); 71.0% and 41.2% of the unexposed group achieved ≥ 5% and ≥ 10% weight loss at 12 months, respectively, compared with 63.1% and 31.8% in the exposed group at 12 months (P = 0.04 at 5%; P = 0.02 at 10%). CONCLUSIONS: Exposure to psychotropic medications was associated with diminished weight loss in patients with medically managed overweight and obesity.
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Psicotrópicos/efeitos adversos , Redução de Peso/fisiologia , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do TratamentoRESUMO
OBJECTIVES: The objectives were to correlate the modified fluorescent method with the conventional Ziehl-Neelsen (ZN) method for the detection of acid-fast bacilli (AFB) and, also to study the efficacy and advantages of using the auramine-rhodamine stain on lymph node aspirates under fluorescent microscopy. METHODS: In 108 consecutive patients with a clinical suspicion of tuberculosis (TB) presenting with lymphadenopathy, fine needle aspirations were performed. Smears from the aspirates were processed for routine cytology, the conventional ZN method, and the modified fluorescent method. The significance of the modified fluorescent method over the conventional ZN method was analyzed using the chi-square test. RESULTS: Out of 108 aspirates, 102 were studied and remaining 6 were excluded from the study due to diagnosis of malignancy in 4.04% (4/6) and inadequate aspiration in 2.02% (2/6). Among the 102 aspirates, 44.11% (45/102) were positive for AFB on the conventional ZN method, 58.9% (60/102) were indicative of TB on cytology, while the smear positive increased to 81.37% (83/102) on the modified fluorescent method. CONCLUSIONS: Fluorescent microscopy has the advantage of speed and ease of screening, and reduces observer fatigue. The modified fluorescent method was found to be more advantageous than routine cytology and conventional ZN method, particularly in paucibacillary cases. The bacillary positivity rates were higher in the modified fluorescent method than in the ZN method. Hence, the modified fluorescent method can be an adjuvant when used with routine cytology for the identification of AFB.
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OBJECTIVE: To emphasize the role of fine needle aspiration cytology (FNAC) in etiologic workup in significant cervical lymphadenopathy in children. STUDY DESIGN: A total of 336 consecutive children, aged 1 month to 12 years, with significant cervical lymphadenopathy were subjected to FNAC. Children on empirical/specific therapy for lymphadenopathy for >2 months and children with lymphadenopathy other than cervical region were excluded from this study. RESULTS: Of 324 cases, the cytomorphologic features observed were reactive lymphadenitis in 58.02% of cases, granulomatous lymphadenitis in 30.55%, suppurative lymphadenitis in 7.10% and malignancies in 5.62%. The remaining 3. 57% of cases were excluded because of inadequate aspiration. The most common cause diagnosed was tuberculosis in 29.01% of cases followed by chronic tonsillopharyngitis in 28.39%, suppurative lymphadenitis in 7.10%, human immune deficiency infection in 5.55% and malignancies in CONCLUSION: FNAC is an important diagnostic modality for the etiologic workup in significant cervical lymphadenopathy in children. It is almost as sensitive and specific as excision lymph node biopsy when an adequate aspirate is examined by expert eyes.
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Biópsia por Agulha Fina , Doenças Linfáticas/etiologia , Doenças Linfáticas/patologia , Criança , Pré-Escolar , Feminino , Infecções por HIV/complicações , Humanos , Lactente , Doenças Linfáticas/cirurgia , Masculino , Pescoço/patologia , Neoplasias/complicações , Faringite/complicações , Tonsilite/complicações , Tuberculose dos Linfonodos/complicaçõesRESUMO
Tick-borne pathogens (TBP) are a major source of production loss and a welfare concern in livestock across the globe. Consequently, there is a trade-off between keeping animals that are tolerant to TBP infection, but are less productive than more susceptible breeds. Theileria annulata is a major TBP of bovines, with different host types (i.e. exotic and native cattle breeds, and buffalo) displaying demonstrable differences in clinical susceptibility to infection. However, the extent to which these differences are driven by genetic/physiological differences between hosts, or by different parasite populations/genotypes preferentially establishing infection in different host breeds and species is unclear. In this study, three different bovine host types in India were blood sampled to test for the presence of various TBP, including Theileria annulata, to determine whether native cattle (Bos indicus breeds), crossbreed cattle (Bos taurus x Bos indicus breeds) or water buffalo (Bubalus bubalis) differ in the physiological consequences of infection. Population genetic analyses of T.â¯annulata isolated from the three different host types was also performed, using a panel of mini- and micro-satellite markers, to test for sub-structuring of the parasite population among host types. We discovered that compared to other host types, "carrier" crossbreed cattle showed a higher level of haematological pathology when infected with T.â¯annulata. Despite this finding, we found no evidence for differences in the genotypes of T.â¯annulata infecting different host types, although buffalo appeared to harbour fewer mixed parasite genotype infections, indicating they are not the major reservoir of parasite diversity. The apparent tolerance/resistance of native breed cattle and buffalo to the impacts of T.â¯annulata infection is thus most likely to be driven by host genotype, rather than differences in the parasite population. Our results suggest that an improved understanding of the genetic factors that underpin disease resistance could help to ameliorate future economic loss due to TBP or tropical theileriosis.