Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 148
Filtrar
1.
Sex Reprod Healthc ; 36: 100853, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37167827

RESUMO

INTRODUCTION: Research examining symptoms and side effects of the menstrual cycle on physical activity performance and participation has almost exclusively focussed on elite and athletic populations. The current study aimed to i) identify any differences in symptomatic experiences of the menstrual cycle between hormonal contraceptive users and non-users, ii) gain insight into hormonal contraceptive use, iii) describe perceived symptomatic influences on physical activity engagement, and iv) identify perceived levels of knowledge and understanding around the menstrual cycle. METHODS: An online questionnaire was completed by 881 adult females aged between 18 and 55 years. Questionnaire items related to hormonal contraceptive use, habitual physical activity levels, experiences and symptoms of the menstrual cycle, and sources of information resulting in knowledge and understanding of the menstrual cycle. RESULTS: More than half of all participants (52%) identified themselves as being recreationally active, and the most commonly reported menstrual symptoms were abdominal cramps, lethargy, abdominal bloating, lower back pain, and heavy bleeding. Of all respondents, 48.1% were using some form of hormonal contraception, 66% of which were using a version of a combined oral contraceptive pill. DISCUSSION: Consistent with previous studies, 90% of respondents regularly experienced adverse menstrual symptoms, including abdominal cramps, lethargy, abdominal bloating, lower back pain, and heavy bleeding. Menstrual symptoms were frequently identified as influential factors in the avoidance of, and reduced performance in, physical activity. Almost half of all participants were using some form of hormonal contraception, a noticeably larger proportion than has been previously documented in studies examining non-athletic populations.


Assuntos
Cólica , Dor Lombar , Humanos , Adulto , Feminino , Adolescente , Adulto Jovem , Pessoa de Meia-Idade , Cólica/induzido quimicamente , Letargia/induzido quimicamente , Ciclo Menstrual , Anticoncepcionais Orais Combinados/efeitos adversos , Exercício Físico
2.
Sci Rep ; 11(1): 22729, 2021 11 23.
Artigo em Inglês | MEDLINE | ID: mdl-34815466

RESUMO

Cerro de Pasco, Peru, has been excessively contaminated with heavy metals due to high mining activities in the region. We investigated the presence of chronic exposure to heavy metals in children living in Cerro de Pasco and its effect on health. Heavy metal concentrations were determined in hair samples collected from 78 children living in a region exposed to an open-pit mine (Paragsha region) and from other 16 children unexposed to mine activities (Carhuamayo region). Children exposed to the mine showed statistically significant higher concentration of aluminum, antimony, arsenic, cadmium, chromium, iron, lead, tin and thallium (p < 0.05) than control children. Hair samples collected from the same children in two occasions (2016 and 2018) showed that the exposure is chronic with higher levels of heavy metals observed in 2018. The concentration of heavy metals was higher in hair tip than in hair root samples. Heavy metals are associated with substantial higher risk of nosebleed (odds ratio, OR = 15.40), chronic colic (OR = 7.30), dermatologic alterations (OR = 6.16), mood alterations (OR = 7.07), presence of white lines on nails (OR = 12.10), reduced visual camp (OR = 3.97) and other symptoms (OR = 5.12). Chronic heavy metal exposure implies various negative consequences on children's health. Preventive measures are crucial to protect children's health.


Assuntos
Saúde da Criança/estatística & dados numéricos , Cólica/epidemiologia , Exposição Ambiental/análise , Metais Pesados/efeitos adversos , Metais Pesados/análise , Transtornos do Humor/epidemiologia , Doenças da Unha/epidemiologia , Dermatopatias/epidemiologia , Adolescente , Adulto , Idoso , Estudos de Casos e Controles , Criança , Pré-Escolar , Cólica/induzido quimicamente , Cólica/patologia , Exposição Ambiental/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos do Humor/induzido quimicamente , Transtornos do Humor/patologia , Doenças da Unha/induzido quimicamente , Doenças da Unha/patologia , Peru/epidemiologia , Dermatopatias/induzido quimicamente , Dermatopatias/patologia
3.
R I Med J (2013) ; 104(8): 8-10, 2021 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-34582506

RESUMO

Chinese Star Anise (Illicium verum) is a common spice used in many cultures as an herbal treatment for infant colic.1,2 Often, it has been found to be contaminated with Japanese Star Anise (Illicium anisatum) or is used in high doses resulting in neurotoxicity and gastrointestinal disturbances.1,3,4 Here we present a case of a previously healthy 2-week-old male who was evaluated in the emergency department for abnormal movements, irritability, and emesis after ingestion of star anise tea for the treatment of colic.


Assuntos
Cólica , Illicium , Cólica/induzido quimicamente , Humanos , Lactente , Recém-Nascido , Convulsões/induzido quimicamente , Convulsões/tratamento farmacológico , Chá
4.
Toxins (Basel) ; 13(8)2021 08 23.
Artigo em Inglês | MEDLINE | ID: mdl-34437459

RESUMO

Mycotoxin contaminated feed has been associated with colic of horses caused by intestinal disorders. Whether such disease conditions alter the intestinal toxin metabolism and transfer across a compromised mucosal barrier is unknown. A screening approach was used to relate blood residue levels of DON, ZEN and their metabolites to the status of the horses (sick vs. healthy). A total of 55 clinically healthy horses from 6 different farms with varying feeding background served as control for sick horses (N = 102) hospitalized due to colic. ZEN, alpha-zearalenol (ZEL), beta-ZEL and DON were detectable in peripheral blood as indicators for the inner exposure with significant farm effects for alpha- and beta-ZEL. However, the levels in sick horses were similar to all farms. Moreover, the proportion of beta-ZEL of all detected ZEN metabolites as an indicator for the degree of metabolism of ZEN was not different for sick horses but differed amongst the control farms. Although the incidence of DON in blood was generally low and not significantly different amongst healthy and sick horses, the positive samples were nearly exclusively found in sick horses suggesting either a higher toxin transfer, an association of DON with the development of colic or a different feeding background.


Assuntos
Cólica/induzido quimicamente , Tricotecenos/sangue , Tricotecenos/metabolismo , Tricotecenos/toxicidade , Zearalenona/sangue , Zearalenona/metabolismo , Zearalenona/toxicidade , Ração Animal/análise , Ração Animal/microbiologia , Animais , Análise Química do Sangue , Cavalos , Micotoxinas/sangue , Micotoxinas/metabolismo , Micotoxinas/toxicidade
6.
J Ethnopharmacol ; 236: 240-249, 2019 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-30853647

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Cotoneaster nummularioides Pojark manna (Shir-e-Khesht) is popular in Persian medicine. Different effects of some Cotoneaster species manna include antibacterial, antioxidant, anticancer, and hepatoprotective effects, as well as bilirubin serum levels reduction. Cotoneaster species manna is used in many parts of Iran as a laxative and accelerates the passage of meconium. Neonatal jaundice has relatively costly and sometimes invasive therapeutic interventions, which its prevention from becoming severe cases can be a priority in neonatal medicine. AIM OF THE STUDY: The aim of this study was to evaluate the effectiveness of an herbal product (Purgative Manna, native to Iran and Asian countries) in preventing severe cases of jaundice and reducing total bilirubin levels in neonates. MATERIALS AND METHODS: This randomized double-blind controlled clinical trial included full-term babies. Four hundred and forty-five (445) eligible neonates were assigned to two groups using the block balanced randomization method; 222 neonates received the Purgative Manna product as drops, and 223 neonates received placebo drops. The neonates received a dose of 5 drops per kilogram of neonatal weight (divided into three doses per day) for three days. The treatment period was three days, and a 24-h (three times) examination was performed to measure the initial outcome of the trial (i.e., the total serum bilirubin level). The secondary outcomes of this trial were the need for hospitalization due to jaundice and/or phototherapy from 4 to 14 days after birth, the frequency of defecation within 24 h, and the triple complications of diarrhoea, dehydration symptoms, and abdominal colic. RESULTS: In this study, 220 neonates in the Purgative Manna product group and 222 neonates in the placebo group completed their interventions within the predicted period of the study. At the end of study, the total bilirubin level in the Purgative Manna treated group was significantly lower than that of the placebo group. The difference between the mean total bilirubin levels of the two groups was approximately 2.1 mg/dl on the third day after treatment, with an effect size of 0.79 (95% CI: 0.06-0.98). The relative risk for reducing the need for hospitalization or phototherapy in the group treated with Purgative Manna drops was 0.26, compared with the placebo group. The risk of occurrence of severe jaundice or phototherapy in the Purgative Manna group was 75% lower than that of the placebo group. The median frequency of defecation in the intervention group at three time intervals in the first, second and third days after treatment was 1-2 times more than that of the comparison group (p < 0.001). CONCLUSIONS: Meanwhile, considering the fact that one in every eight neonates who used the product avoided having a severe and high-risk case of jaundice or the need for phototherapy intervention (even through an exchange transfusion), the use of Purgative Manna drops can be recommended; however, further study is necessary.


Assuntos
Bilirrubina/sangue , Misturas Complexas/administração & dosagem , Icterícia Neonatal/prevenção & controle , Medicina Tradicional/métodos , Rosaceae/química , Administração Oral , Cólica/induzido quimicamente , Cólica/epidemiologia , Misturas Complexas/efeitos adversos , Desidratação/induzido quimicamente , Desidratação/epidemiologia , Diarreia/induzido quimicamente , Diarreia/epidemiologia , Método Duplo-Cego , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Recém-Nascido , Irã (Geográfico) , Icterícia Neonatal/sangue , Icterícia Neonatal/terapia , Masculino , Fototerapia/estatística & dados numéricos , Placebos/administração & dosagem , Resultado do Tratamento
7.
Neonatology ; 114(3): 226-229, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29940563

RESUMO

BACKGROUND: The aetiology of infantile colic remains unknown. However, altered gut microbiota composition has been reported in children with the disorder. OBJECTIVE: The objective of this study was to determine the associations between perinatal factors potentially affecting gut colonization and infantile colic. METHODS: Altogether 48 infants with colic and 29 controls were selected from 2 ongoing clinical studies. Infants with and without colic were comparable with regard to their background characteristics. RESULTS: A significant difference was detected in intrapartum antibiotic use and breastfeeding rates between infants with and without colic. The association between exposure to intrapartum antibiotics and infantile colic remained statistically significant after adjusting for potential confounding factors. CONCLUSIONS: Since intrapartum antibiotic exposure may have an effect on early gut colonization, our finding is consistent with the association between aberrant early gut microbiota composition and development of colic. Antibiotic-exposed neonates may represent a novel target group for preventive intervention studies.


Assuntos
Antibacterianos/efeitos adversos , Aleitamento Materno , Cólica/induzido quimicamente , Microbioma Gastrointestinal/efeitos dos fármacos , Exposição Materna/efeitos adversos , Antibacterianos/administração & dosagem , Estudos de Casos e Controles , Feminino , Humanos , Lactente , Recém-Nascido , Modelos Logísticos , Masculino , Parto
8.
Pediatr Allergy Immunol ; 29(2): 151-158, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29314334

RESUMO

BACKGROUND: Cohort studies have suggested that early-life antibiotic treatment is associated with increased risk of atopy. We determined whether antibiotic treatment already in the first week of life increases the risk of atopic and non-atopic disorders. METHODS: The INCA study is a prospective observational birth cohort study of 436 term infants, with follow-up of 1 year; 151 neonates received broad-spectrum antibiotics for suspected neonatal infection (AB+), vs a healthy untreated control group (N = 285; AB-). In the first year, parents recorded daily (non-) allergic symptoms. At 1 year, doctors' diagnoses were registered and a blood sample was taken (n = 205). RESULTS: Incidence of wheezing in the first year was higher in AB+ than AB- (41.0% vs 30.5%, P = .026; aOR 1.56 [95%CI 0.99-2.46, P = .06]). Infantile colics were more prevalent in AB+ compared to AB- (21.9% and 14.4% P = .048), and antibiotic treatment was an independent risk factor for infantile colics (aOR 1.66 (95%CI 1.00-2.77) P = .05). Allergic sensitization (Phadiatop >0.70kUA/L) showed a trend toward a higher risk in AB+ (aOR 3.26 (95%CI 0.95-11.13) P = .06). Incidence of eczema, infections, and GP visits in the first year were similar in AB+ and AB-. CONCLUSION: Antibiotic treatment in the first week of life is associated with an increased risk of wheezing and infantile colics. This study may provide a rationale for early cessation of antibiotics in neonates without proven or probable infection.


Assuntos
Antibacterianos/efeitos adversos , Cólica/induzido quimicamente , Hipersensibilidade/etiologia , Sons Respiratórios/etiologia , Estudos de Coortes , Cólica/epidemiologia , Feminino , Humanos , Hipersensibilidade/epidemiologia , Imunização , Imunoglobulina E/sangue , Incidência , Recém-Nascido , Masculino , Estudos Prospectivos , Fatores de Risco
10.
Lupus ; 25(12): 1357-64, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27147621

RESUMO

OBJECTIVE: The aim of the study was to assess the efficacy and safety of fumaric acid esters (FAEs) in patients with cutaneous lupus erythematosus (CLE). METHODS: In this 24-week, prospective, open-label, phase II pilot study, 11 patients with CLE, refractory to topical corticosteroids, were included. The primary endpoint of the study was the evaluation of the efficacy of FAEs after 24 weeks of treatment as assessed by the Revised Cutaneous Lupus Disease Area and Severity Index (RCLASI). RESULTS: Compared to baseline, significant improvement in the mean total RCLASI activity score and the mean RCLASI activity score for skin lesions was observed in week 12 (p = 0.002, p = 0.002, respectively) and in week 24 (p = 0.009, p = 0.009, respectively). Most common adverse events included abdominal cramps and headache. CONCLUSIONS: FAEs could be an alternative and safe treatment in patients with therapy-refractory CLE; however, randomized controlled trials are warranted to evaluate the efficacy and safety of FAEs in this disease.


Assuntos
Fumaratos/administração & dosagem , Lúpus Eritematoso Cutâneo/tratamento farmacológico , Adulto , Cólica/induzido quimicamente , Esquema de Medicação , Feminino , Fumaratos/efeitos adversos , Cefaleia/induzido quimicamente , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Estudos Prospectivos , Índice de Gravidade de Doença , Resultado do Tratamento
11.
Pan Afr Med J ; 24: 316, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28154671

RESUMO

Lead colic is a rare cause of abdominal pain. The diagnosis of lead poisoning is most often mentioned in at risk populations (children, psychotic). We report the case of a 2 year old child that was presented for acute abdomen. Abdominal plain radiograph showed multiple intra-colonic metallic particles and suggested lead poisoning diagnosis. Anamnesis found a notion of pica and consumption of peeling paint. Elevated blood lead levels (BLL) confirmed the diagnosis. The lead poisoning is a public health problem especially in children, but its manifestation by a lead colic is rare and could simulate an acute abdomen table.


Assuntos
Abdome Agudo/diagnóstico , Cólica/induzido quimicamente , Intoxicação por Chumbo/diagnóstico , Pica/complicações , Dor Abdominal/etiologia , Pré-Escolar , Humanos , Chumbo/sangue , Intoxicação por Chumbo/etiologia , Masculino , Pintura/efeitos adversos , Radiografia Abdominal
12.
Gynecol Obstet Invest ; 81(4): 333-8, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26588025

RESUMO

OBJECTIVE: The study aims to compare the safety and effectiveness of 200 and 400 µg of oral misoprostol for cervical priming before hysteroscopy. METHODS: A double-blinded randomized study included 70 patients scheduled for hysteroscopy in a Lebanese University Hospital. Two dosages of oral misoprostol (200 or 400 µg) were randomly distributed to these patients 1 h before surgery under general anesthesia. Subjective assessment of the ease of dilatation, size of the first used Hegar, cervical injuries, bleeding or uterine perforation, duration of the procedure and misoprostol adverse effect were all noted and compared. RESULTS: The difficulty of dilation until a Hegar 10 was similar for both treatment groups. Operative time was not reduced with a higher misoprostol dosage. We found 2 uterine perforations within the 200 µg group (6.7%), and none within the 400 µg group. Cervical lacerations and bleeding were similar (20%) for both treatment groups. A 2-fold increase in side effects (nausea, vomiting and cramps) is reported among the 400 µg group. CONCLUSIONS: Increasing the dose of misoprostol from 200 to 400 mg doubled the rate of side effects while no clinical benefit was noted. Larger trials are needed to assess rates of uterine perforation with the 200 µg dosage.


Assuntos
Colo do Útero/efeitos dos fármacos , Histeroscopia/métodos , Misoprostol/administração & dosagem , Adulto , Colo do Útero/lesões , Cólica/induzido quimicamente , Dilatação/métodos , Relação Dose-Resposta a Droga , Método Duplo-Cego , Feminino , Humanos , Histeroscopia/efeitos adversos , Lacerações , Pessoa de Meia-Idade , Misoprostol/efeitos adversos , Náusea/induzido quimicamente , Ocitócicos , Gravidez , Cuidados Pré-Operatórios , Perfuração Uterina/epidemiologia , Perfuração Uterina/etiologia , Vômito/induzido quimicamente
13.
Int J Sport Nutr Exerc Metab ; 25(5): 427-38, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25811946

RESUMO

Certain commercial carbohydrate replacement products include slowly absorbed carbohydrates such as isomaltulose. Few studies have investigated the metabolic effects of ingesting isomaltulose during exercise and none have evaluated exercise performance and gastrointestinal comfort. Nine male cyclists participated postprandially during three trials of 2-h steady-state (S-S) exercise (60%Wmax) followed by a 16 km time trial (TT) while ingesting 63 g·h-1 of either, 0.8:1 fructose: maltodextrin (F:M) or isomaltulose (ISO) or placebo- flavored water (PL). Data were analyzed by magnitude-based inferences. During S-S exercise, ISO and PL similarly increased plasma nonesterified fatty acid (NEFA) concentration (mean change ISO versus F:M: 0.18, 90%CI ±0.21 mmol·L-1, 88% likelihood) and fat oxidation (10, 90%CI ±9 g, 89% likelihood) while decreasing carbohydrate oxidation (-36, 90%CI ±30.2 g, 91% likelihood) compared with F:M, despite equal elevations in blood glucose concentration with ISO and F:M. Rating of stomach cramps and bloating increased progressively with ISO (rating: 0-90 min S-S, weak; 120 min S-S, moderate; TT, strong) compared with F:M and PL (0-120 min S-S and TT, very weak). TT performance was substantially slower with ISO (mean change: 1.5, 90%CI ±1.4 min, 94% likely harmful) compared with F:M. The metabolic response of ISO ingestion during moderate exercise to increase NEFA availability and fat oxidation despite elevating blood glucose concentration is anomalous for a carbohydrate supplement. However, ingesting isomaltulose at a continuous high frequency to meet the recommended carbohydrate replacement dose, results in severe gastrointestinal symptoms during prolonged or high intensity exercise and negatively affects exercise performance compared with fructose-maltodextrin supplementation.


Assuntos
Desempenho Atlético/fisiologia , Ciclismo/fisiologia , Carboidratos da Dieta/farmacologia , Isomaltose/análogos & derivados , Fenômenos Fisiológicos da Nutrição Esportiva/efeitos dos fármacos , Adulto , Glicemia/efeitos dos fármacos , Cólica/induzido quimicamente , Estudos Cross-Over , Carboidratos da Dieta/efeitos adversos , Método Duplo-Cego , Ingestão de Líquidos , Ácidos Graxos não Esterificados/sangue , Frutose/farmacologia , Humanos , Isomaltose/efeitos adversos , Isomaltose/farmacologia , Masculino , Oxirredução/efeitos dos fármacos , Polissacarídeos/farmacologia , Edulcorantes/farmacologia
14.
Equine Vet J ; 47(5): 568-72, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24917312

RESUMO

REASONS FOR PERFORMING STUDY: Acorn toxicity has been anecdotally reported to cause fatal colitis and colic in horses but reports in the scientific literature are sparse. OBJECTIVES: This study reports the diagnosis, treatment, prognosis and outcome of 9 cases with suspected acorn toxicity admitted to 2 referral hospitals. STUDY DESIGN: Retrospective case series. METHODS: Case records from 2004 to 2013 were reviewed. Horses were included in the study if they met 3 of 4 criteria: exposure to acorns; clinical and laboratory data suggesting alimentary or renal dysfunction; acorn husks in the faeces or gastrointestinal tract; and necropsy and histopathological findings consistent with acorn toxicity. Data collected included case history, clinical presentation, clinicopathological data, ultrasonographic findings, case progression, and necropsy and histopathological findings. RESULTS: Nine horses met the inclusion criteria. Five cases presenting with haemorrhagic diarrhoea deteriorated rapidly and were subjected to euthanasia or died. Four cases showed signs of colic with gas distension, displacement of the large colon and diarrhoea. Three of these (33%) survived with medical management, the fourth was subjected to euthanasia. Post mortem examination of 6 cases demonstrated submucosal oedema of the large intestine and caecum (n = 6), acute tubular nephrosis (n = 6), diffuse necrohaemorrhagic and ulcerative typhlocolitis and enteritis (n = 4), and small intestinal oedema (n = 3). CONCLUSIONS: Acorn ingestion may be associated with typhylocolitis leading to diarrhoea, colic and acute renal tubular nephrosis. Recovery is possible in mildly affected cases; more severe cases show hypovolaemia, intractable pain, renal dysfunction and cardiovascular failure, and often succumb to the disease process. Disease is only seen in a small proportion of the population exposed to acorns and there seems to be an increased occurrence in certain years. Further investigation into factors predisposing to disease is required, but limiting exposure to acorns in the autumn seems prudent.


Assuntos
Cólica/veterinária , Colite/induzido quimicamente , Colite/veterinária , Doenças dos Cavalos/induzido quimicamente , Quercus/toxicidade , Sementes/toxicidade , Animais , Cólica/induzido quimicamente , Cólica/patologia , Colite/patologia , Feminino , Doenças dos Cavalos/patologia , Cavalos , Masculino , Plantas Tóxicas , Estudos Retrospectivos
15.
Optom Vis Sci ; 91(12): e298-300, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25259759

RESUMO

PURPOSE: To report systemic symptoms after an overdose of travoprost. CASE REPORT: We report a patient who, instead of artificial tears, inadvertently used travoprost every 15 minutes for 7 hours after LASIK (laser-assisted in situ keratomileusis) surgery. She experienced abrupt, severe abdominal cramps and sudden, severe menstrual bleeding, which subsided quickly upon discontinuation of the drug. CONCLUSIONS: Because of the few systemic adverse effects, prostaglandin analogs are widely used for the treatment of glaucoma. Travoprost should be taken once daily; therefore, overdose is extremely uncommon. Systemic prostaglandins have been found to be mediators of uterine activity and are used to induce labor and terminate pregnancies. The high dose of this topical medication, as well as the compromised cornea, makes this case unique. The unusual circumstances observed in this case greatly expand our knowledge regarding the potential adverse effects of travoprost.


Assuntos
Dor Abdominal/induzido quimicamente , Anti-Hipertensivos/intoxicação , Cloprostenol/análogos & derivados , Cólica/induzido quimicamente , Overdose de Drogas , Distúrbios Menstruais/induzido quimicamente , Adulto , Cloprostenol/intoxicação , Córnea/efeitos dos fármacos , Pestanas/efeitos dos fármacos , Feminino , Humanos , Ceratomileuse Assistida por Excimer Laser In Situ , Lasers de Excimer , Lubrificantes Oftálmicos/administração & dosagem , Soluções Oftálmicas , Travoprost
16.
Med Sci Sports Exerc ; 46(9): 1778-86, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25134001

RESUMO

PURPOSE: The effects of glucose-and-fructose (GF) coingestion on cycling time trial (TT) performance and physiological responses to exercise were examined under postprandial conditions. METHODS: Eight trained male cyclists (age, 25 ± 6 yr; height, 180 ± 4 cm; weight, 77 ± 9 kg; V˙O2max, 62 ± 6 mL·kg·min) completed the study. Subjects ingested either an artificially sweetened placebo (PL), a moderate-glucose beverage (MG, 1.03 g·min), a high-glucose beverage (HG, 1.55 g·min), or a GF beverage (1.55 g·min, 2:1 ratio) during approximately 3 h of exercise, including 2 h of constant-load cycling (55% Wmax, 195 ± 17 W), immediately followed by a computer-simulated 30-km TT. Physiological responses (V˙E, V˙O2, RER, HR, blood glucose level, blood lactate level, and RPE) and incidences of gastrointestinal distress were assessed during early (15-20 min), middle (55-60 min), and late exercise (115-120 min) and during the TT. Magnitude-based qualitative inferences were used to evaluate differences between treatments. RESULTS: In comparison with that in PL (52.9 ± 3.7 min), TT performances were faster with GF (50.4 ± 2.2 min, "very likely" benefit), MG (51.1 ± 2.4 min, "likely" benefit), and HG (52.0 ± 3.7 min, "possible" benefit). GF resulted in a "likely" improvement versus HG (3.0%) and an "unclear" effect relative to MG (1.2%). MG was "possibly" beneficial versus HG (1.8%). Few incidences of GI distress were reported in any trials. CONCLUSIONS: GF ingestion seems to enhance performance, relative to PL and HG. However, it is unclear whether GF improves performance versus moderate doses of glucose.


Assuntos
Desempenho Atlético/fisiologia , Ciclismo/fisiologia , Frutose/administração & dosagem , Glucose/administração & dosagem , Substâncias para Melhoria do Desempenho/administração & dosagem , Administração Oral , Adulto , Glicemia/metabolismo , Cólica/induzido quimicamente , Tontura/induzido quimicamente , Método Duplo-Cego , Teste de Esforço , Frutose/efeitos adversos , Glucose/efeitos adversos , Cefaleia/induzido quimicamente , Frequência Cardíaca , Humanos , Ácido Láctico/sangue , Masculino , Náusea/induzido quimicamente , Consumo de Oxigênio , Substâncias para Melhoria do Desempenho/efeitos adversos , Esforço Físico , Período Pós-Prandial , Troca Gasosa Pulmonar , Ventilação Pulmonar , Vômito/induzido quimicamente , Adulto Jovem
17.
Equine Vet J ; 45(5): 625-9, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23461655

RESUMO

REASONS FOR PERFORMING STUDY: Imidocarb, an effective treatment for piroplasmosis, may cause colic and diarrhoea in horses. Atropine and glycopyrrolate are anticholinergics that could reduce the adverse effects of imidocarb. However, atropine and glycopyrrolate inhibit gastrointestinal motility, potentially causing ileus and colic. OBJECTIVES: To compare glycopyrrolate and atropine in ameliorating the adverse effects of imidocarb dipropionate in horses and to determine the effect of combinations of these drugs on the gastrointestinal tract. METHODS: A blinded, randomised, crossover study was performed in 8 healthy horses. Each horse received 0.9% saline i.m and i.v. (CON), and imidocarb 2.4 mg/kg bwt i.m. with one of 3 treatments i.v.: 0.9% saline (IMI), atropine 0.02 mg/kg bwt (IMATROP) and glycopyrrolate 0.0025 mg/kg bwt (IMGLYCO). Clinical data, gastrointestinal motility via borborygmi and frequency of contractions in the duodenum, caecum and right dorsal colon assessed with transabdominal ultrasound, and faecal data were measured. RESULTS: After imidocarb/saline treatment colic and diarrhoea were noted in 3 and 4 horses, respectively, faecal production and defaecation were increased for 3 h and faecal water percentage for 6 h. Colic was noted after atropine treatment in 4 horses, borborygmi and frequency of right dorsal colon contractions were significantly decreased for 2 h 15 min, and faecal production was not significantly different from CON. After glycopyrrolate treatment, colic was seen in one horse, frequency of intestinal contractions and faecal data were not significantly different from CON, and borborygmi was significantly decreased from CON at 1 h 15 min. CONCLUSIONS: Results of this study suggest that glycopyrrolate is superior to atropine in ameliorating the adverse effects of imidocarb. POTENTIAL RELEVANCE: Glycopyrrolate could be administered with imidocarb in horses with piroplasmosis to reduce the adverse effects of imidocarb.


Assuntos
Atropina/uso terapêutico , Cólica/veterinária , Glicopirrolato/uso terapêutico , Doenças dos Cavalos/induzido quimicamente , Imidocarbo/análogos & derivados , Animais , Antiprotozoários/efeitos adversos , Cólica/induzido quimicamente , Cólica/tratamento farmacológico , Estudos Cross-Over , Diarreia/induzido quimicamente , Diarreia/tratamento farmacológico , Diarreia/veterinária , Método Duplo-Cego , Doenças dos Cavalos/tratamento farmacológico , Cavalos , Imidocarbo/efeitos adversos , Antagonistas Muscarínicos/uso terapêutico
18.
Pediatrics ; 129(3): e652-8, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22351887

RESUMO

OBJECTIVE: To investigate the associations between use of nicotine replacement therapy (NRT) and smoking during pregnancy and infantile colic in the offspring. METHODS: We used data from maternal interviews (from pregnancy and at 6 months post partum) from the Danish National Birth Cohort (1996-2002). We included 63 128 live-born singletons with complete information on nicotine exposure during pregnancy and infantile colic symptoms as recorded at 6 months of age. RESULTS: A total of 46 660 infants (73.9%) were unexposed to nicotine during pregnancy; 207 (0.3%) were exposed to NRT, 15 016 (23.8%) were exposed to smoking, and 1245 (2.0%) to both. A total of 4974 (7.9%) infants fulfilled Wessel's modified criteria for infantile colic. Prenatal nicotine exposure was associated with elevated risk for infantile colic in the offspring. Compared with the unexposed, NRT users had an adjusted odds ratio (OR) (95% confidence interval) of 1.6 (1.0-2.5; P = .03), smokers had OR = 1.3 (1.2-1.4), and women who both smoked and used NRT had OR = 1.6 (1.3-1.9). Partners' smoking was not associated with infantile colic after adjustment for maternal smoking. CONCLUSIONS: We corroborated the association between smoking and infantile colic after adjustment for several possible confounders in a large cohort study. Moreover, we found that infants exposed to NRT prenatally had an increased risk for infantile colic of the same magnitude as those exposed to tobacco smoke. Thus, nicotine may play a role in the pathogenesis of infantile colic.


Assuntos
Cólica/induzido quimicamente , Cólica/epidemiologia , Nicotina/efeitos adversos , Prevenção do Hábito de Fumar , Dispositivos para o Abandono do Uso de Tabaco , Adulto , Estudos de Coortes , Cólica/fisiopatologia , Intervalos de Confiança , Dinamarca , Feminino , Seguimentos , Idade Gestacional , Humanos , Incidência , Lactente , Recém-Nascido , Entrevistas como Assunto , Modelos Logísticos , Exposição Materna/efeitos adversos , Razão de Chances , Gravidez , Medição de Risco , Fumar/efeitos adversos , Abandono do Hábito de Fumar/métodos
19.
Nat Prod Res ; 26(24): 2358-62, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22348255

RESUMO

The anti-inflammatory and antinociceptive activities of cordymin, a peptide purified from the medicinal mushroom Cordyceps sinensis, were studied. The effects of cordymin on cytokine levels and total antioxidant activity were analysed. The antinociceptive effects of cordymin in vivo and in vitro were also determined. Cordymin treatment decreased the levels of tumour necrosis factor alpha, interleukin 1 beta and total antioxidant status. Cordymin inhibited the acetic acid-induced abdominal constrictions in mice in a dose-dependent manner. In the hot-plate test, results showed that cordymin significantly inhibited the reaction time to thermal stimuli at 30, 60 and 90 min. In neurolysin inhibition assay, cordymin showed strong activities against neurolysin (IC(50) = 0.1 µM). Our results show that cordymin is a potent anti-inflammatory and analgesic medicine.


Assuntos
Analgésicos/farmacologia , Anti-Inflamatórios/farmacologia , Cordyceps/química , Peptídeos/farmacologia , Extratos Vegetais/farmacologia , Ácido Acético/toxicidade , Analgésicos/isolamento & purificação , Animais , Anti-Inflamatórios/isolamento & purificação , Cólica/induzido quimicamente , Cólica/tratamento farmacológico , Relação Dose-Resposta a Droga , Temperatura Alta , Interleucina-1beta/sangue , Metaloendopeptidases/antagonistas & inibidores , Camundongos , Peptídeos/isolamento & purificação , Extratos Vegetais/isolamento & purificação , Tempo de Reação/efeitos dos fármacos , Fatores de Tempo , Fator de Necrose Tumoral alfa/sangue
20.
J Strength Cond Res ; 26(7): 1953-8, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21964428

RESUMO

Although a considerable amount of literature exists on the ergogenic potential of ingesting sodium bicarbonate (NaHCO3) before short-term, high-intensity exercise, very little exists on optimal loading times before exercise. The purpose of this study was to determine the influence of NaHCO3 supplementation timing on repeated sprint ability (RSA). Eight men completed 3 (randomized and counterbalanced) trials of ten 10-second sprints separated by 50 seconds of active recovery (1:5 work-to-rest) on a nonmotorized treadmill. Before each trial, the subjects ingested 0.3 g·kg(-1) body weight of NaHCO3 at 60 (H1), 120 (H2), or 180 (H3) minutes before exercise. Additionally, the subjects were assessed for any side effects (gastrointestinal [GI] discomfort) from the NaHCO3 ingestion via a visual analog scale (VAS). Blood buffering was assessed using a 2-way analysis of variance (ANOVA) with repeated measures, whereas repeated sprint performance and GI discomfort were assessed via a 1-way ANOVA with repeated measures. Blood-buffering capacity was not different at preexercise times (HCO3(-) [millimoles per liter] H1: 30.2 ± 0.4, H2: 30.9 ± 0.6, H3: 31.2 ± 0.6; p > 0.74). Average speed, average power, and total distance covered progressively declined over the 10 sprints; however, there was no difference between conditions (p > 0.22). The incidence of GI discomfort was significantly higher (p < 0.05) from preingestion at all time points with the exception of 180 minutes, whereas severity was only different between 90 and 180 minutes. Ingestion times (between 60 and 180 minutes) did not influence the blood buffering or the ergogenic potential of NaHCO3 as assessed by RSA. However, VAS scores indicated that at 180 minutes postingestion, an individual is less prone to experiencing significant GI discomfort.


Assuntos
Desempenho Atlético/fisiologia , Recuperação de Função Fisiológica/efeitos dos fármacos , Corrida/fisiologia , Bicarbonato de Sódio/administração & dosagem , Adulto , Alcalose/sangue , Alcalose/induzido quimicamente , Alcalose/fisiopatologia , Análise de Variância , Soluções Tampão , Cólica/induzido quimicamente , Diarreia/induzido quimicamente , Eructação/induzido quimicamente , Teste de Esforço , Flatulência/induzido quimicamente , Humanos , Masculino , Náusea/induzido quimicamente , Bicarbonato de Sódio/sangue , Bicarbonato de Sódio/farmacologia , Vômito/induzido quimicamente , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA