RESUMO
STUDY QUESTION: What is the risk of an undetected natural conception pregnancy during luteal phase ovarian stimulation, and how does it impact the pregnancy's course? SUMMARY ANSWER: The risk for an undetected, natural conception pregnancy in luteal phase ovarian stimulation is low and it appears that ovarian stimulation is unlikely to harm the pregnancy. WHAT IS KNOWN ALREADY: Random start ovarian stimulation appears to be similarly effective as early follicular stimulation start; and it allows ovarian stimulation to be started independent of the cycle day and throughout the cycle, in accordance with the patients' and clinics' schedule as long as there is no intention of a fresh embryo transfer in the same cycle. Starting ovarian stimulation in the luteal phase bears the possibility of an-at the timepoint of stimulation start-undetected, natural conception pregnancy that has already occurred. There is scarce data on the incidence of this event as well as on the possible implications of ovarian stimulation on the course of an existing pregnancy. STUDY DESIGN, SIZE, DURATION: This retrospective observational study, performed between June 2017 and January 2024, analyzed luteal phase stimulations, in which a natural conception pregnancy was detected during the ovarian stimulation treatment for IVF/ICSI. Luteal phase stimulation was defined as ovarian stimulation started after ovulation and before the next expected menstrual bleeding, with a serum progesterone (P4) level of >1.5 ng/ml on the day of stimulation start or 1 day before. PARTICIPANTS/MATERIALS, SETTING, METHODS: Women who underwent a luteal phase ovarian stimulation in a tertiary referral ART center. MAIN RESULTS AND THE ROLE OF CHANCE: A total of 488 luteal phase stimulation cycles were included in the analysis. Luteal phase stimulation was only started after a negative serum hCG measurement on the day or 1 day before commencement of ovarian stimulation. Ten patients (2.1%) had an undetected natural conception pregnancy at the time of luteal phase stimulation start. Eight of these patients underwent an ovarian stimulation in a GnRH-antagonist protocol and two in a progestin-primed stimulation protocol (PPOS). Recombinant FSH was used as stimulation medication for all patients, the patients with a PPOS protocol received additional recombinant LH. One pregnancy (0.2%) was detected after the oocyte retrieval, the other nine pregnancies were detected either due to persistent high serum progesterone levels or due to an increasing progesterone level after an initial decrease before oocyte retrieval. In the cycles with an undetected natural conception pregnancy, the median number of stimulation days was 8 days (range: 6-11 days) and median serum hCG at detection of pregnancy was 59 IU hCG (range: 14.91-183.1). From 10 patients with a pregnancy, three patients delivered a healthy baby, two patients had ongoing pregnancies at the time of summarizing the data, three patients had biochemical pregnancies (patient age: 30, 39, and 42 years), one patient had an ectopic pregnancy which required a salpingectomy, and one patient (age: 34 years) had an early pregnancy loss. LIMITATIONS, REASONS FOR CAUTION: The retrospective study design and the small sample size can limit the accuracy of the estimates. WIDER IMPLICATIONS OF THE FINDINGS: Overall, there is a small risk of undetected natural conception pregnancies when luteal phase stimulation is undertaken. It appears that there are no adverse effects through either direct effect on the embryo or indirectly through a detrimental effect on the corpus luteum function on the pregnancy in our cohort. STUDY FUNDING/COMPETING INTEREST(S): This study did not receive funding. The authors declare that there is no conflict of interest. TRIAL REGISTRATION NUMBER: N/A.
Assuntos
Fase Luteal , Indução da Ovulação , Feminino , Humanos , Gravidez , Fertilização , Fertilização in vitro/métodos , Indução da Ovulação/métodos , Taxa de Gravidez , Progesterona/sangue , Estudos Retrospectivos , Injeções de Esperma Intracitoplásmicas/métodosRESUMO
PURPOSE: Carpenters are constantly exposed to a noise level of 82-100 dB(A) in their professional lives. The aim of this study is to evaluate the hearing status of carpenters with pure -tone audiometry and transient evoked otoacoustic emissions test. METHODS: A total of 62 individuals were enrolled. The study group consisted of 31 carpenters and the controls were age and sex matched healthy individuals who were not exposed to continuous or sudden noise. RESULTS: The average age of the carpenters is 44.58 ± 10.33, the average age of the control group is 41.84 ± 8.65 and there was no statistically significant difference (p = 0.262). There was a significant hearing loss in the study group nearly at all frequencies when compared to the control group (p < 0.05). The emission values of the right and left ears of the carpenters were significantly lower than the controls at 2000 and 2800 Hz (p < 0.05). CONCLUSION: Accordingly, carpenters seem to be susceptible to the development of noise-induced hearing loss.
Assuntos
Indústria da Construção , Perda Auditiva Provocada por Ruído/epidemiologia , Doenças Profissionais/epidemiologia , Adulto , Audiometria de Tons Puros , Audição , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
BACKGROUND: Following open rhinoplasty, a postoperative scar at the columellar incision line is a common morbidity. The aim of this study is to compare absorbable and nonabsorbable suture materials which had been used for closing the transcolumellar incision, in the aspect of risk of postoperative infection, wound healing, postoperative columellar scar and patient satisfaction. METHOD: A prospective, randomized, single-blind study was conducted between May 2017 and February 2018. Sixty-four rhinoplasty patients were randomly assigned to absorbable (n = 32) or nonabsorbable (n = 32) groups. The columellar incision was closed with 7 full-thickness skin sutures. Either nonabsorbable 6/0 polypropylene (Group 1) or absorbable 6/0 polyglytone 6211 (Group 2) sutures were placed at the columellar incisions. Polypropylene sutures were removed at the 7th postoperative day. A Mann-Whitney U test and Monte Carlo were used for statistical comparison. Photographs of the patients at the postoperative third month (Fig. 2) were evaluated and scored in terms of scarring, pigmentation, notching, level differences in the incision area by two different otorhinolaryngologists who did not know the randomization. Suture removing discomfort was assessed with visual analogue scale scores. A satisfaction survey was filled out by all the patients completing their third month after the operation. RESULTS: According to the results of both otorhinolaryngologists, there was no significant difference between the two groups in terms of pigmentation, level difference, notching, overall appearance and total score (p = 0.920, p = 0.498, respectively). The mean score on the Wong-Baker scale was 3.19 ± 1.67 in group 1. In the Satisfaction Survey, the average score of the group 1 was 6.90 ± 3.24, while the mean score of the group 2 was 7.062 ± 2.77. There was no statistically significant difference between the two groups (p = 0.715). CONCLUSIONS: Suturing inverted V transcolumellar incisions with rapid resorbable sutures caused significantly less discomfort but no difference in scarring compared to nonresorbable sutures as evaluated by patients and observers. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
Assuntos
Rinoplastia , Técnicas de Sutura , Humanos , Septo Nasal/cirurgia , Estudos Prospectivos , Método Simples-Cego , Suturas , Resultado do TratamentoRESUMO
When incipient species meet in secondary contact, natural selection can rapidly reduce costly reproductive interactions by directly targeting reproductive traits. This process, called reproductive character displacement (RCD), leaves a characteristic pattern of geographic variation where divergence of traits between species is greater in sympatry than allopatry. However, because other forces can also cause similar patterns, care must be given in separating pattern from process. Here we show how the phylo-comparative method together with genomic data can be used to evaluate evolutionary processes at the population level in closely related species. Using this framework, we test the role of RCD in speciation of two cricket species endemic to Anatolian mountains by quantifying patterns of character displacement, rates of evolution and adaptive divergence. Our results show differing patterns of character displacement between species for reproductive vs. non-reproductive characters and strong patterns of asymmetric divergence. We demonstrate diversification results from rapid divergence of reproductive traits towards multiple optima under the dual influence of strong drift and selection. These results present the first solid evidence for RCD in Anatolian mountains, quantify the amount of drift and selection necessary for RCD to lead to speciation, and demonstrate the utility of phylo-comparative methods for quantifying evolutionary parameters at the population level.
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Deriva Genética , Gryllidae/classificação , Gryllidae/genética , Filogenia , Seleção Genética , Animais , Loci Gênicos , Geografia , Gryllidae/anatomia & histologia , Funções Verossimilhança , Masculino , Fenótipo , Reprodução/genética , TurquiaRESUMO
The induction of plant defense mechanisms by resistance inducers is an attractive and innovative alternative to reduce the use of fungicides on wheat against Zymoseptoria tritici, the responsible agent of Septoria tritici blotch (STB). Under controlled conditions, we investigated the resistance induction in three wheat cultivars with different susceptible levels to STB as a response to a treatment with a sulfur, manganese sulfate, and protein-based resistance inducer (NECTAR Céréales). While no direct antigermination effect of the product was observed in planta, more than 50% reduction of both symptoms and sporulation were recorded on the three tested cultivars. However, an impact of the wheat genotype on resistance induction was highlighted, which affects host penetration, cell colonization, and the production of cell-wall degrading enzymes by the fungus. Moreover, in the most susceptible cultivar Alixan, the product upregulated POX2, PAL, PR1, and GLUC gene expression in both noninoculated and inoculated plants and CHIT2 in noninoculated plants only. In contrast, defense responses induced in Altigo, the most resistant cultivar, seem to be more specifically mediated by the phenylpropanoid pathway in noninoculated as well as inoculated plants, since PAL and CHS were most specifically upregulated in this cultivar. In Premio, the moderate resistant cultivar, NECTAR Céréales elicits mainly the octadecanoid pathway, via LOX and AOS induction in noninoculated plants. We concluded that this complex resistance-inducing product protects wheat against Z. tritici by stimulating the cultivar-dependent plant defense mechanisms.
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Ascomicetos , Fertilizantes , Nutrientes , Triticum , Ascomicetos/fisiologia , Resistência à Doença/efeitos dos fármacos , Fungicidas Industriais , Nutrientes/farmacologia , Doenças das Plantas/microbiologia , Triticum/efeitos dos fármacos , Triticum/microbiologiaRESUMO
BACKGROUND: A good understanding of nasal tip support mechanisms is essential for achieving successful and functional rhinoplasty results. The loss of nasal tip support resulting from different maneuvers adopted during rhinoplasty and how this loss is affected by reconstructive applications should be known. This study evaluated and compared changes in nasal tip support perioperatively after different techniques were used during septorhinoplasty. METHODS: Patients who underwent primary open rhinoplasty between January 2018 and March 2018 in a tertiary medical center were included in this prospective blind case series. Nasal tip resistance measurements were taken after perioperative maneuvers by creating enough force to achieve 1 mm, 2 mm and 3 mm of displacement at the tip region. Measurements were obtained during six different stages using a Newton meter: preoperatively, after caudal septal resection, after skin flap elevation, after the columellar strut or tongue-in-groove procedure, after tip suturing and postoperatively. Our hypothesis was that during septorhinoplasty, each maneuver used changes the tip support intraoperatively. The predictor variables were the different rhinoplasty techniques used. The outcome variable was nasal tip resistance to compression intraoperatively and immediate postoperatively. Appropriate statistics were computed, and a p < 0.05 value was considered significant. RESULTS: Ten of the 15 patients were female, and 5 were male. The patient age ranged from 19 to 40 (mean 24.8 ± 4.9). The tongue-in-groove technique was applied in 5 of the patients, while columellar strut grafting was performed in 10. The application of columellar strut grafting did not create a significant increase in nasal tip support (p > 0.05). An increase in nasal tip support was observed at each stage (85%, 53%, 35%) after application of the tongue-in-groove technique (p < 0.05). CONCLUSIONS: A novel and reproducible technique for digitally evaluating manual force is presented for determining changes in nasal tip support with different maneuvers applied in living patients undergoing rhinoplasty. No significant difference was noted between the preoperative and postoperative measurements for columellar strut grafting. The tongue-in-groove technique is an important maneuver that has a significant effect on nasal tip support. According to our data, the interdomal and intercrural ligaments, the medial crus-septum connections and the connections between alar cartilage and overlying skin and muscle tissue are important structures for tip support. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
Assuntos
Cartilagens Nasais/cirurgia , Septo Nasal/cirurgia , Nariz/cirurgia , Rinoplastia/métodos , Retalhos Cirúrgicos/transplante , Cicatrização/fisiologia , Adulto , Fatores Etários , Estudos de Coortes , Estética , Feminino , Seguimentos , Hospitais Universitários , Humanos , Masculino , Septo Nasal/fisiopatologia , Nariz/anatomia & histologia , Estudos Prospectivos , Medição de Risco , Fatores Sexuais , Fatores de Tempo , Resultado do Tratamento , Turquia , Adulto JovemRESUMO
BACKGROUND: Interleukin-10 (IL) is an anti-inflammatory cytokine that regulates normal sleep patterns, and recent studies have reported that it is a potential useful biomarker to identify presence and severity of sleep apnea syndrome (OSAS). Promoter polymorphisms of IL-10 gene have been associated with altered expression levels, which contributes to OSAS. OBJECTIVE: The aim of this study was to determine the prevalence of -1082 G/A, -819 C/T, and -592 C/A promoter polymorphisms of IL-10 gene in individuals with OSAS and controls. SUBJECTS AND METHODS: An open-label study was performed in the Otorhinolaryngology and Sleep Disorders Outpatient Clinics. One hundred four cases with OSAS were included as the study group, and 78 individuals without OSAS were included as the controls. DNAs were extracted from peripheral blood leukocytes, and the sites that encompassed those polymorphisms were identified by DNA sequencing analyses. Data were analyzed with SNPStats and multifactor dimensionality reduction (MDR) software. RESULTS: The prevalence of OSAS was higher in males in the study group when compared to controls (P = 0.0003). The IL-10-1082 G/A, -819 C/T, and -592 C/A SNPs, and their minor alleles were associated with a significantly increased risk for OSAS compared to the controls (P Ë 0.05 for all). Furthermore, ATA haplotype frequency was significantly higher in the study group compared to the control group, but the GCC haplotype frequency was lower (P = 0.0001 and P = 0.0001). As indicated in MDR analysis, combinations of IL-10 gene were associated with OSAS in single-, double-, and triple-locus analyses. CONCLUSION: The prevalences of the IL-10 gene promoter polymorphisms were different in OSAS patients and the controls in Turkish population. IL-10 gene polymorphisms may lead to altered inflammatory cascade, which might contribute to OSAS. Further studies on larger cohorts are needed to validate our findings.
Assuntos
Interleucina-10/genética , Polimorfismo Genético/genética , Regiões Promotoras Genéticas/genética , Apneia Obstrutiva do Sono/genética , Estudos Transversais , Expressão Gênica/genética , Marcadores Genéticos/genética , Redução Dimensional com Múltiplos Fatores , Polimorfismo de Nucleotídeo Único/genética , Valores de Referência , Análise de Sequência de DNA , Apneia Obstrutiva do Sono/diagnósticoRESUMO
Prepartal energy overfeeding may predispose cows to a state of increased insulin resistance with greater lipolysis after parturition. The aim of the study was to evaluate the effects of prepartal overfeeding in terms of abundant grass silage ration on the liver and subcutaneous adipose tissue (SAT) gene expression around parturition. Sixteen multiparous Finnish Ayrshire dairy cows were fed ad libitum either grass silage [high energy, HE; 144 MJ/d of metabolizable energy (ME) intake, n=8] or a mixture of grass silage, wheat straw, and rapeseed meal [55:40:5 (CON), 109 MJ/d of ME, n=8] during the dry period (58.2±4.89 d, mean ± standard deviation). Tissue biopsies and blood samples were collected at -14 (±4.98), 1, and 7 d relative to the actual parturition date. The HE cows had greater total dry matter intake, ME intake, and ME balance during the dry period than the CON cows. Compared with CON, the increases in body weight and body condition score were greater in HE during the dry period. Milk yield during the first 2 wk of lactation was not different between the groups. Plasma glucose, nonesterified fatty acids, insulin, glucagon, and ß-hydroxybutyrate did not differ between the groups during the transition period. Dietary treatment did not affect hepatic triglyceride content; however, a delayed increase in hepatic total lipid content was observed in the HE cows at d 1 postpartum. Hepatic cytosolic phosphoenolpyruvate carboxykinase 1 mRNA expression was lower in HE than in CON at d 1 and 7 postpartum. Adiponectin receptor 1 and 2 mRNA abundance tended to be lower in SAT of HE than CON. Lower lipoprotein lipase, leptin, and stearoyl-coenzyme A desaturase mRNA abundances were observed at d 7 postpartum in SAT of the HE cows compared with the CON cows. We concluded that prepartal ad libitum feeding of grass silage may decrease insulin sensitivity and lipogenesis in SAT during peripartal period and may attenuate the increase of hepatic gluconeogenic capacity from propionate compared with a controlled-energy diet.
Assuntos
Bovinos/fisiologia , Dieta/veterinária , Fígado/metabolismo , Parto/fisiologia , Poaceae , Gordura Subcutânea/metabolismo , Animais , Glicemia/metabolismo , Peso Corporal , Ingestão de Energia , Feminino , Gluconeogênese/genética , Resistência à Insulina , Lactação , Lipogênese/genética , Leite/metabolismo , Período Pós-Parto , Gravidez , RNA Mensageiro/análise , Silagem , Transcrição GênicaRESUMO
Endoscopic approaches have become an alternative to external approaches in the treatment of sinonasal inverted papillomas (IPs) in recent years. The aim of this study was to analyze the outcomes of endoscopic modified medial maxillectomy preserving the nasolacrimal duct and the inferior turbinate in selected IP cases. Medical charts of patients diagnosed with IP originating from the maxillary sinus between July 2008 and August 2013 were reviewed. Eight patients who had undergone endoscopic modified medial maxillectomy were included in the study. Attachment of IP was located on the medial wall of the maxillary sinus in all cases. The nasolacrimal duct was preserved in all of the patients. The inferior turbinate was completely preserved in 5 patients, and the anterior part of the inferior turbinate was preserved in 3 patients. The mean follow-up period of the patients was 30.8 months (12-60â mo). None of the patients had recurrence or major complications. The postoperative complaints were minor hemorrhagic discharge and crusting for the first few weeks. Endoscopic modified medial maxillectomy preserving the nasolacrimal duct and the inferior turbinate provides good surgical and functional outcomes in selected IP cases.
Assuntos
Endoscopia/métodos , Osteotomia Maxilar/métodos , Neoplasias do Seio Maxilar/cirurgia , Seio Maxilar/cirurgia , Papiloma Invertido/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
A 48 year old lady was referred to BIRDEM Hospital, Dhaka, Bangladesh by her local physician for evaluation of hypercalcaemia and increased serum parathyroid hormone (PTH) in the background history of low trauma fracture. Ultrasound of neck and parathyroid scintigraphy with 99mTc-MIBI revealed a parathyroid adenoma. Parathyroidectomy was done. Histopathology report showed features consistent with parathyroid adenoma. Primary hyperparathyroidism should be kept in mind in all patients presenting with history of bone problems ranging from simple bone pain to spontaneous or low trauma fracture associated with hypercalcemia. By the help of appropriate localization technique it can be localized and cured by parathyriodectomy.
Assuntos
Adenoma/complicações , Fraturas Ósseas/etiologia , Neoplasias das Paratireoides/complicações , Feminino , Humanos , Hipercalcemia/complicações , Hiperparatireoidismo Primário/complicações , Pessoa de Meia-Idade , Paratireoidectomia , RecidivaRESUMO
The risk factor profiles, management and outcome have significant difference between stroke subsets. Aim of this study was to investigate the risk for the two most common subtypes of stroke in Bangladeshi population. Seventy cases of hemorrhagic stroke (HS) and 105 cases of confirmed ischemic stroke (IS) were recruited from the Shaheed Suhrawardy Medical College Hospital (ShSMCH) and Dhaka Medical College Hospital between January-June 2011. Total 171 age, sex matched controls were selected from the hospitalized patients with history of no stroke ever. Average hemorrhagic stroke patients (60.4 ± 12.3 years) were younger than both ischemic strokes (63.5 ± 13 years). Family history of premature cardiovascular death was found more in HS patients (p = 0.001). Multivariate logistic regression showed, in IS model 'less fruit consumption (OR 4.6), table salt intake (OR 8.15), psychosocial stress (OR 3.5), abnormal ECG (OR 3.6) and Increased WHR (OR 6.9) appeared as significant predictors adjusted for all potential candidate confounders. In HS model less fruit consumption (OR 5.0), table salt intake (OR 9.9), Stress (OR 4.1), family history of cardiovascular disease (CVD) death (OR 11.3), hypertension (OR 43), aspirin intake (OR 4.5) and increased WHR (OR 3.7) remained as significant predictors.
Assuntos
Isquemia Encefálica/etiologia , Hemorragia Cerebral/etiologia , Acidente Vascular Cerebral/etiologia , Bangladesh/epidemiologia , Isquemia Encefálica/mortalidade , Estudos de Casos e Controles , Hemorragia Cerebral/mortalidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Acidente Vascular Cerebral/mortalidadeRESUMO
Injuries are a focus of public health practice because they pose a serious health threat, occur frequently and are preventable. The evidence regarding injury, its contributing factor and its consequence in rural population of Bangladesh is scarce. Present study aimed to assess the epidemiology of injury in a rural area. The study was conducted in the 'Bairag' Union of Anwara upazilla in Chittagong district of Bangladesh. Data of 6256 individuals were collected from 1016 households. Three structured and standardized questionnaires were used for data collection. The questionnaires were pretested and validated prior to final survey. Severity of injury was assessed based on the number of days with restricted activity and consequences of injury were considered as a measure of severity of injury. A total of six people died due to injury in last one year in the survey, the death tolls to 0.096% (95% CI 0.037%-0.199%). A total of 392 experienced an injury that at least hampered one day's routine activity. Crude prevalence of injury over last one year is calculated to be 6.27% (95% CI 5.69%-6.89%). Of injured subject's majority (77.2%) were aged between 10 to 59 years, 73% were male, 55.6% were of lower class and among them 7.9 % suffered multiple injuries. More than 80% of the incident leading to injury happened during the day, (8 am to 6 pm). Daytime injury mostly occurs in afternoon. The mechanism of injury of 30% subjects were road accident, of 29.5% subjects was slip, trip or fall. In 17.9% victims' mechanism of injury was collision with a person or object. Around 10% had deep cut, 1.4% had superficial cut, and 3.3% patient had burn through contact with heat. Among the injured only 19.2% escaped any physical consequence, 27.2% suffered from decrease in work capacity, 48.1% developed temporary disability, 3.8% developed permanent disability, and 1.2% suffered disfiguration.
Assuntos
Ferimentos e Lesões/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Bangladesh/epidemiologia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Escala de Gravidade do Ferimento , Masculino , Pessoa de Meia-Idade , Fatores de Risco , População Rural , Inquéritos e QuestionáriosRESUMO
Mycosphaerella graminicola is a hemibiotrophic fungus that causes Septoria tritici blotch (STB), one of the most serious foliar diseases of wheat. STB can occur with a wide range of disease levels on the host, which depend not only on the pathogenicity of fungal strains, but also on the resistance of host cultivars. Here, we investigated the association between the disease level and fungal cell-wall degrading enzyme and protease activities in three wheat cultivars differing in their resistance levels against M. graminicola. The experiments were carried out in the greenhouse using artificial inoculations with the M. graminicola strain T01193. Disease symptoms scored at 21-day post-inoculation (dpi) were significantly higher on the susceptible and moderately resistant cultivars, Alixan and Premio (48% and 42% of diseased leaf area, respectively), than in the resistant one, Altigo (28% of diseased leaf area). Regarding sporulation, the rate of pycnidial density was significantly higher on Alixan (2.9) compared to Premio and Altigo (1.1 and 1.0, respectively). Further biochemical investigations revealed, by 17 dpi, significant fungal beta-1,4-endoxylanase, beta-1,4-endoglucanase and protease activities, whose amounts increased according to the pycnidial density recorded on the infected leaves. At 21 dpi, the amounts of these activities were significantly higher on Alixan compared to Premio and Altigo (0.36 U/mg, 0.63 U/mg and 2.70 mU/mg total proteins on Alixan, 0.09 U/mg, 0.19 U/mg and 0.72 mU/mg total proteins on Premio and 0.05 U/mg, 0.15 U/mg and 0.52 mU/mg total proteins on Altigo for beta-1,4-endoxylanase, beta-1,4-endoglucanase and protease activities, respectively). These results confirm the importance of CWDE and protease activities in the process of fungal sporulation during the necrotrophic phase of M. graminicola.
Assuntos
Ascomicetos/enzimologia , Parede Celular/microbiologia , Proteínas Fúngicas/metabolismo , Esporos Fúngicos/crescimento & desenvolvimento , Triticum/microbiologia , Ascomicetos/genética , Ascomicetos/crescimento & desenvolvimento , Parede Celular/metabolismo , Proteínas Fúngicas/genética , Doenças das Plantas/microbiologia , Folhas de Planta/microbiologia , Esporos Fúngicos/enzimologia , Esporos Fúngicos/genéticaRESUMO
Overfeeding during the dry period may predispose cows to increased insulin resistance (IR) with enhanced postpartum lipolysis. We studied gene expression in the liver and subcutaneous adipose tissue (SAT) of 16 Finnish Ayrshire dairy cows fed either a controlled energy diet [Con, 99 MJ/day metabolizable energy (ME)] during the last 6 wk of the dry period or high-energy diet (High, 141 MJ/day ME) for the first 3 wk and then gradually decreasing energy allowance during 3 wk to 99 MJ/day ME before the expected parturition. Tissue biopsies were collected at -10, 1, and 9 days, and blood samples at -10, 1, and 7 days relative to parturition. Overfed cows had greater dry matter, crude protein, and ME intakes and ME balance before parturition. Daily milk yield, live weight, and body condition score were not different between treatments. The High cows tended to have greater plasma insulin and lower glucagon/insulin ratio compared with Con cows. No differences in circulating glucose, glucagon, nonesterified fatty acids and ß-hydroxybutyrate concentrations, and hepatic triglyceride contents were observed between treatments. Overfeeding compared with Con resulted in lower CPT1A and PCK1 and a tendency for lower G6PC and PC expression in the liver. The High group tended to have lower RETN expression in SAT than Con. No other effects of overfeeding on the expression of genes related to IR in SAT were observed. In conclusion, overfeeding energy prepartum may have compromised hepatic gluconeogenic capacity and slightly affected IR in SAT based on gene expression.
Assuntos
Fenômenos Fisiológicos da Nutrição Animal/fisiologia , Bovinos/fisiologia , Metabolismo Energético/fisiologia , Regulação da Expressão Gênica no Desenvolvimento/fisiologia , Fígado/metabolismo , Período Periparto/fisiologia , Gordura Subcutânea/metabolismo , Adaptação Fisiológica/fisiologia , Análise de Variância , Animais , Teorema de Bayes , Primers do DNA/genética , DNA Complementar/genética , Dieta/veterinária , Ingestão de Alimentos/fisiologia , Feminino , Finlândia , Reação em Cadeia da Polimerase em Tempo Real/veterináriaRESUMO
The objective of this study is to examine whether there is an association of fractalkine gene receptor polymorphisms with chronic tonsillitis. This is a cross-sectional study in the setting of a tertiary referral center. The study group included 79 patients with chronic tonsillitis and 76 controls without history of chronic tonsillitis. Genotypes were identified by restriction fragment length polymorphism analyses after polymerase chain reaction. c.745G>A (V249I) single nucleotide polymorphism and the frequencies of the G and A alleles did not differ in the patient and control groups (p = 0.363; p = 0.743, respectively). c.839C>T (T280M) single nucleotide polymorphism was found to be higher in controls than in the patients with chronic tonsillitis (p < 0.001). Consistent with this result, T allele frequency was higher in controls than in the patients with chronic tonsillitis (p < 0.001). In this study, we suggested that fractalkine gene receptor c.839C>T (T280M) single nucleotide polymorphism could be associated with a reduced risk of chronic tonsillitis.
Assuntos
Polimorfismo de Nucleotídeo Único/genética , Receptores de Quimiocinas/genética , Tonsilite/genética , Adolescente , Receptor 1 de Quimiocina CX3C , Estudos de Casos e Controles , Pré-Escolar , Doença Crônica , Estudos Transversais , Feminino , Frequência do Gene , Genótipo , Humanos , Lactente , Masculino , Estudos Prospectivos , Adulto JovemRESUMO
The aim of the current study is to investigate the potential relationship between polymorphisms and nasal polyposis (NP) pathogenesis in the SCGB3A1 (UGRP2) gene, which is a member of the secretoglobin gene super family. Genotypic variations were studied by performing DNA sequencing in blood samples of 80 patients with NP and 70 healthy individuals to evaluate nucleotide changes and their positions that might be in the SCGB3A1 gene (promotor, splicing points, and exon distributions). In the SCGB3A1 gene, three single-nucleotide changes labeled IVS1-89 T>G, c. -183 G>T, IVS1-189 G>A were identified. IVS1-89 T>G and IVS1-189 G>A belong to the first intronic region of the gene, whereas c. -183 G>T was observed in the promoter region of the gene. The IVS1-89 T>G nucleotide change was observed in the patient and control groups, whereas c. -183 G>T and IVS1-189 G>A nucleotide changes were observed in the control group only. SCGB3A1 (IVS1-89) genotype frequencies between patients with NP and control group were not significantly different (p = 0.311). There was a statistically significant difference in the control group in comparison to patients with NP in terms of SCGB3A1 (c. -183 GT) and SCGB3A1 (IVS1-189 GA) frequency (p = 0.0045 and p = 0.009, respectively). The findings of the current study suggest that SCGB3A1-183 T and SCGB3A1 IVS1-189 A alleles might have a protective effect against NP, and that SCGB3A1 (-183 GT and IVS1-189 GA) genotypes should be studied in future population-based studies.
Assuntos
Citocinas/genética , Pólipos Nasais/genética , Polimorfismo de Nucleotídeo Único , Proteínas Supressoras de Tumor/genética , Adulto , Alelos , Éxons , Feminino , Genes Supressores de Tumor , Genótipo , Humanos , Íntrons , Masculino , Pessoa de Meia-Idade , Pólipos Nasais/diagnóstico , Regiões Promotoras Genéticas , Fatores de Proteção , Tomografia Computadorizada por Raios X , TurquiaRESUMO
Different herbs and spices have been used as feed additives for various purposes in poultry production. This study was conducted to assess the effect of feed supplemented with black pepper (Piper nigrum), turmeric powder (Curcuma longa), coriander seeds (Coriandrum sativum) and their combinations on the performance of broilers. A total of 210 (Cobb) one-d-old chicks were divided into seven groups of 30 birds each. The treatments were: a control group received no supplement, 0.5% black pepper (T1), 0.5% turmeric powder (T2), 2% coriander seeds (T3), a mixture of 0.5% black pepper and 0.5% turmeric powder (T4), a mixture of 0.5% black pepper and 2% coriander seed (T5), and a mixture of 0.5% black pepper, 0.5% turmeric powder and 2% coriander seeds (T6). Higher significant values of body weight gain during the whole period of 5 weeks (p<0.001) were observed in broilers on T1, T3, T5, and T6 compared to control. Dietary supplements with T1, T2, T3, and T6 improved the cumulative G:F of broilers during the whole period of 5 weeks (p<0.001) compared with control. The dressing percentage and edible giblets were not influenced by dietary supplements, while higher values of relative weight of the liver (p<0.05) were obtained in T5 and T6 compared to control. The addition of feed supplements in T5 and T6 significantly increased serum total protein and decreased serum glucose, triglycerides and alkaline phosphatase concentrations compared with the control group (p<0.05). Broilers on T6 showed significant decrease in the serum glutamate pyruvate transaminase concentration (p<0.05) compared to control. The broilers having T5 and T6 supplemented feed had relatively greater antibody titre (p<0.001) at 35 d of age than control. It is concluded that dietary supplements with black pepper or coriander seeds or their combinations enhanced the performance and health status of broiler chickens.
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OBJECTIVES: This study aims to determine the normal values for ocular vestibular evoked myogenic potentials in response to air conducted stimuli in healthy adults. PATIENTS AND METHODS: Thirty-six healthy adult participants with no ear complaints were enrolled. Ocular vestibular evoked myogenic potential tests were performed to all participants. Latency and amplitude values of the waves were recorded. RESULTS: The mean N1 latency was 9.62±2.02 (4.30-16.00) msec and the mean P1 latency was 14.90±2.33 (9.0-21.00) msec. The mean amplitude was 3.36±1.36 (1.06-8.48) µV. There was a positive correlation between N1 and P1 latencies and age (r=242, p=0.0359 for N1; r=250, p=0.030 for P1). CONCLUSION: Ocular vestibular evoked myogenic potentials can be obtained easily and can be used in the evaluation of vestibular disorders. However, the effect of age should be considered when interpreting results.
Assuntos
Potenciais Evocados Miogênicos Vestibulares , Vestíbulo do Labirinto/fisiologia , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valores de Referência , Doenças Vestibulares/diagnóstico , Adulto JovemRESUMO
Septoria tritici blotch caused by Mycosphaerella graminicola is one of the most devastating foliar diseases of wheat. Disease control relies heavily on fungicides, but frequent development of fungal resistance and the negative impact of their extensive use on the environment and human health increasingly compromise this control strategy. Plant resistance inducers could be an alternative to conventional fungicides to control in a more durable manner this pathogen. Here, we tested in the greenhouse two resistance inducers (FSOV7 and FSOV10) on two wheat cultivars, Alixan (susceptible) and Altigo (resistant), against M. graminicola. FSOV7 conferred a significant protection level on both cultivars, while FSOV10 conferred a significant protection level on the resistant cv. Altigo only. Furthermore, the modes of action of the two inducers were examined using cytological, biochemical and molecular approaches. In planta, investigation of the infection process showed that FSOV10 significantly reduced fungal spore germination, whereas FSOV7 did not. An association of protection efficacy with a decrease of fungal biomass and fungal ß-1, 4-endoxylanase and protease activities was observed in both cultivars. However, no association of plant peroxidase activity with protection efficacy was recorded, whatever the cultivar and the resistance inducer. A RT-qPCR assay revealed significant inductions of the expression of genes involved in different defence pathways; further statistical analyses should determine which genes are associated with the observed protection efficacies. This study showed significant inducer-cultivar interactions on wheat against M. graminicola and allowed us to investigate the modes of action on wheat of the two studied resistance inducers.
Assuntos
Ascomicetos/fisiologia , Doenças das Plantas/microbiologia , Triticum/imunologia , Triticum/microbiologia , Ascomicetos/crescimento & desenvolvimento , Peroxidase/genética , Peroxidase/imunologia , Doenças das Plantas/genética , Doenças das Plantas/imunologia , Doenças das Plantas/prevenção & controle , Proteínas de Plantas/genética , Proteínas de Plantas/imunologia , Esporos Fúngicos/crescimento & desenvolvimento , Triticum/enzimologia , Triticum/genéticaRESUMO
Objective: To investigate the middle and inner ear functions, and efferent auditory systems in patients with rheumatoid arthritis (RA). Methods: Thirty-five RA patients and 40 control subjects participated in the study. Pure-tone audiometry, high-frequency audiometry, multifrequency tympanometry, transient evoked otoacoustic emissions, and contralateral suppression tests were administered to all participants. Results: Pure-tone hearing thresholds of RA patients were significantly higher at all frequencies except for 2000 Hz, 14,000 Hz, and 16,000 Hz in the right ear and 16,000 Hz in the left ear (p<0.05). Resonance frequency values of RA patients were statistically significantly lower than those of the control group (p<0.001). Emission amplitudes obtained with contralateral acoustic stimulation were significantly lower at 1400 Hz frequency in both groups than without contralateral acoustic stimulation (p<0.05). While contralateral suppression was observed at all frequencies in the control group, no suppression occurred at 2800 Hz and 4000 Hz in RA patients. Conclusion: The results obtained in this study demonstrated the presence of hearing dysfunction in patients with RA. When a patient is diagnosed with RA, an audiological evaluation should be made, and the patient should be informed about the possibility of audiological involvement.