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1.
Int Arch Allergy Immunol ; 184(10): 955-965, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37253337

RESUMO

INTRODUCTION: The emergency of biologics and surgical techniques targeting the specific inflammatory endotype in chronic rhinosinusitis with nasal polyps (CRSwNP) asks for efficient identification of patients with different endotypes. Although mucosal IL-4, IL-5, IL-13, and IgE have been used to define type 2 (T2) inflammation, the optimal one remains unclear. In this study, we aimed to determine the optimal anchor for T2 inflammation and identify clinical characteristics and nasal secretion biomarkers predicting different endotypes in CRSwNP. METHODS: Six mediators in sinonasal tissue and 36 mediators in nasal secretion samples were detected by the Bio-Plex suspension array system. Mucosal IFN-γ and IL-17A levels were used to define the T1 and T3 endotype, respectively. The efficacy of mucosal IL-4, IL-5, IL-13, and IgE to define the T2 endotype was compared. The power of clinical characteristics and nasal secretion biomarkers to predict the T1, T2, and T3 endotype was analyzed. RESULTS: Among mucosal IL-4, IL-5, IL-13, and IgE, IL-13 was the best one to coincide with the expression of other T2 biomarkers. A combination of atopy, facial pain symptom score, ethmoid/maxillary computed tomography score ratio, and blood eosinophil percentage had a moderate predictive performance for T2 endotype (area under the receiver operating curve [AUC] = 0.815), comparable to that of nasal secretion IL-5 (AUC = 0.819). For the T3 endotype, nasal secretion IL-1Rα identified it with an AUC value of 0.756. No efficient marker for the T1 endotype was found. CONCLUSION: IL-13 is a primary anchor for the T2 endotype in CRSwNP. Clinical characteristics and nasal secretion biomarkers are helpful for identifying the T2 and T3 endotype of CRSwNP.


Assuntos
Pólipos Nasais , Rinite , Sinusite , Humanos , Interleucina-13 , Rinite/diagnóstico , Rinite/metabolismo , Interleucina-5 , Interleucina-4 , Pólipos Nasais/diagnóstico , Pólipos Nasais/metabolismo , Sinusite/diagnóstico , Sinusite/metabolismo , Biomarcadores/metabolismo , Inflamação , Doença Crônica , Imunoglobulina E
2.
Environ Sci Technol ; 57(23): 8588-8597, 2023 06 13.
Artigo em Inglês | MEDLINE | ID: mdl-37236912

RESUMO

Edible seaweed consumption is an essential route of human exposure to complex organoarsenicals, including arsenosugars and arsenosugar phospholipids. However, the effects of gut microbiota on the metabolism and bioavailability of arsenosugars in vivo are unknown. Herein, two nori and two kelp samples with phosphate arsenosugar and sulfonate arsenosugar, respectively, as the predominant arsenic species, were administered to normal mice and gut microbiota-disrupted mice treated with the broad-spectrum antibiotic cefoperazone for 4 weeks. Following exposure, the community structures of the gut microbiota, total arsenic concentrations, and arsenic species in excreta and tissues were analyzed. Total arsenic excreted in feces and urine did not differ significantly between normal and antibiotic-treated mice fed with kelp samples. However, the total urinary arsenic of normal mice fed with nori samples was significantly higher (p < 0.05) (urinary arsenic excretion factor, 34-38 vs 5-7%), and the fecal total arsenic was significantly lower than in antibiotic-treated mice. Arsenic speciation analysis revealed that most phosphate arsenosugars in nori were converted to arsenobetaine (53.5-74.5%) when passing through the gastrointestinal tract, whereas a large portion of sulfonate arsenosugar in kelp was resistant to speciation changes and was excreted in feces intact (64.1-64.5%). Normal mice exhibited greater oral bioavailability of phosphate arsenosugar from nori than sulfonate arsenosugar from kelp (34-38 vs 6-9%). Our work provides insights into organoarsenical metabolism and their bioavailability in the mammalian gut.


Assuntos
Arsênio , Arsenicais , Microbioma Gastrointestinal , Alga Marinha , Humanos , Animais , Camundongos , Disponibilidade Biológica , Arsenicais/urina , Alga Marinha/química , Ingestão de Alimentos , Mamíferos
3.
Eur J Appl Physiol ; 123(10): 2225-2237, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37256293

RESUMO

PURPOSE: This study examined the thermoregulatory response and ergogenic effects of ice slurry (ICE) ingestion in hot environments with high and low relative humidity (RH). METHODS: Eight males completed four trials in a crossover manner in dry (DRY: 34.7 ± 0.2 °C, 38 ± 2%RH) and humid heat (HUM: 34.8 °C ± 0.2 °C, 80 ± 1%RH). They ingested 8.0 g·kg-1 of ICE (0.0 °C) or 37.5 °C water (CON) during 30 min before exercise, and three aliquots (3.2 g·kg-1) of ICE or CON during 45-min cycling at 50%[Formula: see text]O2peak, followed by cycling to exhaustion at 80%[Formula: see text]O2peak (TTE). Body core temperature (Tcore), mean skin temperature (Tsk), heart rate (HR), thermal comfort, thermal sensation and rating of perceived exertion (RPE) were measured. RESULTS: Relative to CON, ICE improved TTE by 76.5 ± 96.5% in HUM and 21.3 ± 44.9% in DRY (p = 0.044). End-exercise Tcore was lower in ICE versus CON in DRY (37.8 ± 0.4 °C versus 38.1 ± 0.3 °C, p = 0.005) and HUM (38.8 ± 0.4 °C versus 39.3 ± 0.6 °C, p = 0.004). ICE decreased HR, heat storage and heat strain index only in DRY (p < 0.001-0.018). ICE improved thermal sensation and comfort in DRY and HUM (p < 0.001-0.011), attenuated RPE in HUM (p = 0.012) but not in DRY (p = 0.065). CONCLUSION: ICE tended to benefit performance in humid heat more than in dry heat. This is likely due to the reduced extent of hyperthermia in dry heat and the relative importance of sensory inputs in mediating exercise capacity.


Assuntos
Regulação da Temperatura Corporal , Temperatura Alta , Masculino , Humanos , Regulação da Temperatura Corporal/fisiologia , Temperatura Cutânea , Exercício Físico/fisiologia , Ingestão de Alimentos , Temperatura Corporal/fisiologia
4.
Int Endod J ; 56(11): 1360-1372, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37615967

RESUMO

AIM: To determine the effect of a novel antimicrobial peptide (AMP; OP145) and cell-penetrating peptide (Octa-arginine/R8) conjugate on the killing of intracellular Enterococcus faecalis, compared to OP145 and an antibiotic combination recommended for regenerative endodontic procedures. METHODOLOGY: The biocompatible concentrations of OP145 and OP145-R8 were determined by assessing their cytotoxicity against human macrophages and red blood cells. Spatiotemporal internalization of the peptides into macrophages was investigated qualitatively and quantitatively by confocal laser scanning microscopy and flow cytometry respectively. Killing of extracellular and intracellular E. faecalis OG1RF by the peptides was determined by counting the colony-forming units (CFU). Intracellular antibacterial activity of the peptides was compared to a double antibiotic combination. Confocal microscopy was used to confirm the intracellular bacterial eradication. Significant differences between the different test groups were analysed using one-way analysis of variance. p < .05 was considered to be statistically significant. RESULTS: Peptides at a concentration of 7.5 µmol/L were chosen for subsequent experiments based on the results of the alamarBlue™ cell viability assay and haemolytic assay. OP145-R8 selectively internalized into lysosomal compartments and the cytosol of macrophages. Conjugation with R8 improved the internalization of OP145 into macrophages in a temporal manner (70.53% at 1 h to 77.13% at 2 h), while no temporal increase was observed for OP145 alone (60.53% at 1 h with no increase at 2 h). OP145-R8 demonstrated significantly greater extracellular and intracellular antibacterial activity compared to OP145 at all investigated time-points and concentrations (p < .05). OP145-R8 at 7.5 µmol/L eradicated intracellular E. faecalis after 2 h (3.5 log reduction compared to the control; p < .05), while the antibiotics could not reduce more than 0.5 log CFU compared to the control (p > .05). Confocal microscopy showed complete absence of E. faecalis within the OP145-R8 treated macrophages. CONCLUSIONS: The results of this study demonstrated that the conjugation of an AMP OP145 to a cell-penetrating peptide R8 eradicated extracellular and intracellular E. faecalis OG1RF without toxic effects on the host cells.


Assuntos
Peptídeos Penetradores de Células , Humanos , Peptídeos Penetradores de Células/farmacologia , Macrófagos/microbiologia , Antibacterianos/farmacologia , Citometria de Fluxo , Enterococcus faecalis , Biofilmes
5.
Org Biomol Chem ; 20(38): 7554-7576, 2022 10 05.
Artigo em Inglês | MEDLINE | ID: mdl-36112051

RESUMO

Construction of a carbon-nitrogen bond is one of the most prevalent operations in nature and organic synthesis. The resulting amino compounds are privileged structural fragments in natural products, pharmaceutical drugs, and functional materials. With the rapid advancement of C-H bond activation, directing-group strategies in C-H amination catalyzed by rhodium have emerged. This reaction approach considerably enhances the step economy and atom economy of the reaction, and it complies with green chemistry and atom economy. The reactivity and selectivity of chelation-assisted rhodium-catalyzed C-H amination are discussed in relation to the types of aminating reagent, as well as the challenges and future development prospects in this field.


Assuntos
Ródio , Aminação , Carbono/química , Catálise , Nitrogênio , Preparações Farmacêuticas , Ródio/química
6.
J Sports Sci ; 40(23): 2608-2638, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36862831

RESUMO

This review evaluated the effect of CWI on the temporal recovery profile of physical performance, accounting for environmental conditions and prior exercise modality. Sixty-eight studies met the inclusion criteria. Standardised mean differences were calculated for parameters assessed at <1, 1-6, 24, 48, 72 and ≥96 h post-immersion. CWI improved short-term recovery of endurance performance (p = 0.01, 1 h), but impaired sprint (p = 0.03, 1 h) and jump performance (p = 0.04, 6h). CWI improved longer-term recovery of jump performance (p < 0.01-0.02, 24 h and 96 h) and strength (p < 0.01, 24 h), which coincided with decreased creatine kinase (p < 0.01-0.04, 24-72 h), improved muscle soreness (p < 0.01-0.02, 1-72 h) and perceived recovery (p < 0.01, 72 h). CWI improved the recovery of endurance performance following exercise in warm (p < 0.01) and but not in temperate conditions (p = 0.06). CWI improved strength recovery following endurance exercise performed at cool-to-temperate conditions (p = 0.04) and enhanced recovery of sprint performance following resistance exercise (p = 0.04). CWI seems to benefit the acute recovery of endurance performance, and longer-term recovery of muscle strength and power, coinciding with changes in muscle damage markers. This, however, depends on the nature of the preceding exercise.


Assuntos
Imersão , Músculo Esquelético , Humanos , Músculo Esquelético/fisiologia , Exercício Físico/fisiologia , Mialgia , Água , Desempenho Físico Funcional , Temperatura Baixa
7.
Nutr Health ; : 2601060221105413, 2022 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-35651312

RESUMO

BACKGROUND: Good nutrition, regular physical activity, and adequate sleep are important for promoting health. However, it is not well characterized how these lifestyle behaviours are associated with mood at the start of school days. AIM: To identify the weekday health-related behaviours (breakfast intake, physical activity, and sleep) of Singaporean adolescents and explore their associations with mood at the beginning of the school morning. METHODS: 365 adolescents (52.3% boys, 47.7% girls) aged 14-19 years (M = 16.9, SD = 1.3 years) completed a survey set on breakfast habits, physical activity participation, sleep duration, and mood. RESULTS: More than one-third (38.6%) of participants never (15.0%) or irregularly (23.6%) consumed breakfast on weekdays. Adolescents consuming breakfast irregularly reported significantly higher negative mood scores than regular breakfast consumers (p = .002; d = .404). Almost two-thirds (64.1%) of adolescents did <60 min of moderate-to-vigorous physical activity (MVPA) on weekdays and reported lower positive morning mood scores than those who ≥60 min of MVPA (p = .014; d = .284). Although most (88.3%) adolescents slept <8 h each night, sleep duration was not related to either positive mood or negative mood. CONCLUSION: The present study suggests that eating breakfast on a regular basis and completing for ≥60 min of weekday MVPA are useful behaviours to start school days in a better mood. Parents and health educators should recognise the importance of establishing these habits and support students by instigating practical approaches so they can achieve a regular breakfast intake and physical activity engagement.

8.
Fish Shellfish Immunol ; 119: 67-75, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34607009

RESUMO

Hybridization is an artificial breeding strategy for generating potentially desirable offspring. Recently, a novel Hulong grouper hybrid (Epinephelus fuscogutatus × Epinephelus lanceolatus) yielded significant growth superiority over its parent. Improved innate immunity is considered as another desirable feature during hybridization. However, whether this Hulong grouper achieved disease resistance has not yet been revealed. In this study, we first examine the infection intensity of C. irritans in the Hulong grouper, and found that the Hulong grouper is less susceptible to C. irritans primary infection. A higher immobilization titer was found in the infected Hulong grouper at Day 2 when compared with the control grouper. Furthermore, severe hyperplasia was observed in the orange-spotted grouper, but not in the Hulong grouper's skin epidermis. To further understand the innate immune mechanism against C. irritans, we conducted a comparative transcriptome analysis of the Hulong grouper during the infection. There are 6464 differentially expressed genes (DEGs) identified in the skin between the control and infected Hulong grouper. This indicates that the innate immune components, such as the complement system, nicotinamide adenine dinucleotide phosphate (NADPH) oxidase, Interleukin 17 (IL-17) signaling pathway, and Toll-like receptor (TLR) signaling pathway were up-regulated during the infection. These results show that the C. irritans infection can induce a remarkable inflammatory response in the Hulong grouper. Moreover, a total of 75 pairs of orthologs with the ratio of nonsynonymous (Ka) to synonymous (Ks) substitutions >1, considered rapidly evolving genes (REGs), was identified between the Hulong and orange-spotted grouper. More critically, most REGs were enriched in the immune system, suggesting that rapid evolution of the immune system might occur in the Hulong grouper. These results provide a more comprehensive understanding of the innate immunity mechanism of the hybrid Hulong grouper.


Assuntos
Bass , Infecções por Cilióforos , Doenças dos Peixes , Parasitos , Animais , Bass/genética , Infecções por Cilióforos/veterinária , Proteínas de Peixes/genética , Perfilação da Expressão Gênica/veterinária , Imunidade Inata/genética , Transcriptoma
9.
Bioorg Med Chem ; 29: 115849, 2021 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-33221063

RESUMO

Neothalfine is a natural bisbenzylisoquinoline alkaloid with the abundant resource in medicinal plants and has not been reported its anti-tumor efficacy. In the present study, the anti-tumor efficacy was investigated and it showed broad-spectrum activity against several cancer cell lines, especially metastatic colorectal cancer (HCT116, SW620, T84) with the IC50 values of 7.2, 5.9, 8.2 nM, respectively, roughly equal to well-known anti-tumor agent docetaxel (4.0, 4.7, 2.7 nM) and nearly 1000 folds than CPT-11 (4.4, 5.1, 6.9 µM). Furthermore, neothalfine inhibited colorectal cell proliferation by resulting in cell cycle arrest at the G2/M phase and induced apoptosis through the dysfunction of mitochondria to trigger intrinsic apoptotic pathway by untargeted metabolomic method, mitochondrial membrane potential, and caspase-3/7 activity assay. Moreover, neothalfine damaged colorectal cancer clonal spheres expansion significantly at the concentration of 3.5 nM with nearly 1000 folds efficacy than CPT-11 (3.0 µM). The results supported that neothalfine might be an anti-tumor lead for further investigation.


Assuntos
Antineoplásicos/farmacologia , Produtos Biológicos/farmacologia , Neoplasias Colorretais/tratamento farmacológico , Antineoplásicos/química , Produtos Biológicos/química , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Neoplasias Colorretais/patologia , Neoplasias Colorretais/secundário , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , Humanos , Potencial da Membrana Mitocondrial/efeitos dos fármacos , Estrutura Molecular , Relação Estrutura-Atividade
10.
Vet Anaesth Analg ; 48(3): 380-387, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33827780

RESUMO

OBJECTIVE: To assess the efficacy of butorphanol-azaperone-medetomidine (BAM) and butorphanol-midazolam-medetomidine (BMM) protocols for immobilization of wild common palm civets (Paradoxurus musangus) with subsequent antagonization with atipamezole. STUDY DESIGN: Prospective, randomized, blinded clinical trial. ANIMALS: A total of 40 adult wild common palm civets, 24 female and 16 male, weighing 1.5-3.4 kg. METHODS: The civets were randomly assigned for anesthesia with butorphanol, azaperone and medetomidine (0.6, 0.6 and 0.2 mg kg-1, respectively; group BAM) or with butorphanol, midazolam and medetomidine (0.3, 0.4 and 0.1 mg kg-1, respectively; group BMM) intramuscularly (IM) in a squeeze cage. When adequately relaxed, the trachea was intubated for oxygen administration. Physiological variables were recorded every 5 minutes after intubation. Following morphometric measurements, sampling, microchipping and parasite treatment, medetomidine was reversed with atipamezole at 1.0 or 0.5 mg kg-1 IM to groups BAM and BMM, respectively. Physiological variables and times to reach the different stages of anesthesia were compared between groups. RESULTS: Onset time of sedation and recumbency was similar in both groups; time to achieve complete relaxation and tracheal intubation was longer in group BAM. Supplementation with isoflurane was required to enable intubation in five civets in group BAM and one civet in group BMM. All civets in group BAM required topical lidocaine to facilitate intubation. End-tidal carbon dioxide partial pressure was lower in group BAM, but heart rate, respiratory rate, rectal temperature, peripheral hemoglobin oxygen saturation and mean arterial blood pressure were not different. All civets in both groups recovered well following administration of atipamezole. CONCLUSIONS AND CLINICAL RELEVANCE: Both BAM and BMM combinations were effective for immobilizing wild common palm civets. The BMM combination had the advantage of producing complete relaxation that allowed intubation more rapidly.


Assuntos
Azaperona , Combinação de Medicamentos , Medetomidina , Viverridae , Animais , Azaperona/farmacologia , Butorfanol/farmacologia , Feminino , Frequência Cardíaca/efeitos dos fármacos , Hipnóticos e Sedativos/farmacologia , Imobilização/veterinária , Masculino , Medetomidina/farmacologia , Midazolam/farmacologia , Estudos Prospectivos
11.
Int J Sports Med ; 41(2): 98-105, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31842246

RESUMO

This study investigated the effect of endurance training and regular post-exercise cold water immersion on changes in microvascular function. Nine males performed 3 sessions∙wk-1 of endurance training for 4 weeks. Following each session, participants immersed one leg in a cold water bath (10°C; COLD) for 15 min while the contra-lateral leg served as control (CON). Before and after training, microvascular function of the gastrocnemius was assessed using near-infrared spectroscopy, where 5 min of popliteal artery occlusion was applied and monitored for 3 min upon cuff release. Changes in Hbdiff (oxyhemoglobin - deoxyhemoglobin) amplitude (O-AMP), area under curve (O-AUC) and estimated muscle oxygen consumption (mVO2) were determined during occlusion, while the reperfusion rate (R-RATE), reperfusion amplitude (R-AMP) and hyperemic response (HYP) were determined following cuff release. Training increased O-AMP (p=0.010), O-AUC (p=0.011), mVO2 (p=0.013), R-AMP (p=0.004) and HYP (p=0.057). Significant time (p=0.024) and condition (p=0.026) effects were observed for R-RATE, where the increase in COLD was greater compared with CON (p=0.026). In conclusion, R-RATE following training was significantly higher in COLD compared with CON, providing some evidence for enhanced microvascular adaptations following regular cold water immersion.


Assuntos
Adaptação Fisiológica , Temperatura Baixa , Imersão , Microcirculação , Músculo Esquelético/irrigação sanguínea , Condicionamento Físico Humano/fisiologia , Resistência Física/fisiologia , Área Sob a Curva , Hemoglobinas/metabolismo , Humanos , Masculino , Consumo de Oxigênio/fisiologia , Oxiemoglobinas/metabolismo , Condicionamento Físico Humano/métodos , Artéria Poplítea/fisiologia , Espectroscopia de Luz Próxima ao Infravermelho/métodos , Adulto Jovem
12.
BMC Vet Res ; 12(1): 198, 2016 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-27612660

RESUMO

BACKGROUND: Central sensitization is a potential severe consequence of invasive surgical procedures. It results in postoperative and potentially chronic pain enhancement. It results in postoperative pain enhancement; clinically manifested as hyperalgesia and allodynia. N-methyl-D-aspartate (NMDA) receptor plays a crucial role in the mechanism of central sensitisation. Ketamine is most commonly used NMDA-antagonist in human and veterinary practice. However, the antinociceptive serum concentration of ketamine is not yet properly established in dogs. Six dogs were used in a crossover design, with one week washout period. Treatments consisted of: 1) 0.5 mg/kg ketamine followed by continuous rate infusion (CRI) of 30 µg/kg/min; 2) 0.5 mg/kg ketamine followed by CRI of 30 µg/kg/min and lidocaine (2 mg/kg followed by CRI of 100 µg/kg/min); and 3) 0.5 mg/kg ketamine followed by CRI of 50 µg/kg/min. The infusion was administered up to 120 min. Nociceptive thresholds and ketamine serum concentrations were measured before drug administration, and at 5, 10, 20, 40, 60, 90, 120, 140 and 160 min after the start of infusion. RESULTS: Maximum concentration recorded was 435.34 ± 26.18 ng/mL, 582.34 ± 227.46 ng/mL and 733.77 ± 133.6 ng/mL for K30, KL30 and K50, respectively. The concentration at 120 min was 250.87 ± 39.87, 221.73 ± 91.03 and 343.67 ± 63.21 ng/mL at 120 min in K30, KL30 and K50, respectively. All the three infusion regimes maintained serum concentrations above 200 ng/mL. The thresholds returned towards baseline values within 20 min, after cessation of infusion. CONCLUSION: Serum concentration to produce mechanical antinociceptive effects in dogs is between 100 and 200 ng/mL. All the three infusion regimes in this study provided antinociceptive effects throughout the infusions. In this study, we found that the serum concentration of ketamine to produce mechanical antinociceptive effects in dogs is above 200 ng/mL. All three infusion regimes provided antinociceptive effects throughout the infusions without causing harmful effects. Further studies are recommended in a clinical setting.


Assuntos
Doenças do Cão/tratamento farmacológico , Ketamina/uso terapêutico , Lidocaína/uso terapêutico , Dor/veterinária , Analgésicos/administração & dosagem , Analgésicos/sangue , Analgésicos/farmacocinética , Analgésicos/uso terapêutico , Anestésicos Locais/administração & dosagem , Anestésicos Locais/uso terapêutico , Animais , Estudos Cross-Over , Cães , Ketamina/administração & dosagem , Ketamina/sangue , Lidocaína/administração & dosagem , Dor/tratamento farmacológico , Medição da Dor/efeitos dos fármacos , Medição da Dor/veterinária
13.
Am J Physiol Regul Integr Comp Physiol ; 309(3): R286-94, 2015 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-26041108

RESUMO

This study investigated the effect of regular postexercise cold water immersion (CWI) on muscle aerobic adaptations to endurance training. Eight males performed 3 sessions/wk of endurance training for 4 wk. Following each session, subjects immersed one leg in a cold water bath (10°C; COLD) for 15 min, while the contralateral leg served as a control (CON). Muscle biopsies were obtained from vastus lateralis of both CON and COLD legs prior to training and 48 h following the last training session. Samples were analyzed for signaling kinases: p38 MAPK and AMPK, peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α), enzyme activities indicative of mitochondrial biogenesis, and protein subunits representative of respiratory chain complexes I-V. Following training, subjects' peak oxygen uptake and running velocity were improved by 5.9% and 6.2%, respectively (P < 0.05). Repeated CWI resulted in higher total AMPK, phosphorylated AMPK, phosphorylated acetyl-CoA carboxylase, ß-3-hydroxyacyl-CoA-dehydrogenase and the protein subunits representative of complex I and III (P < 0.05). Moreover, large effect sizes (Cohen's d > 0.8) were noted with changes in protein content of p38 (d = 1.02, P = 0.064), PGC-1α (d = 0.99, P = 0.079), and peroxisome proliferator-activated receptor α (d = 0.93, P = 0.10) in COLD compared with CON. No differences between conditions were observed in the representative protein subunits of respiratory complexes II, IV, and V and in the activities of several mitochondrial enzymes (P > 0.05). These findings indicate that regular CWI enhances p38, AMPK, and possibly mitochondrial biogenesis.


Assuntos
Proteínas Quinases Ativadas por AMP/metabolismo , Exercício Físico/fisiologia , Renovação Mitocondrial/fisiologia , Músculo Esquelético/metabolismo , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo , Acetil-CoA Carboxilase/metabolismo , Adulto , Temperatura Baixa , Humanos , Masculino , Mitocôndrias/metabolismo , PPAR alfa/metabolismo , PPAR gama/metabolismo , Fatores de Transcrição/metabolismo , Adulto Jovem
14.
BMC Cancer ; 15: 928, 2015 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-26596955

RESUMO

BACKGROUND: The possible advantages of laparoscopic radical hysterectomy (LRH) versus open radical hysterectomy (RH) have not been well reviewed systematically. The aim of this study was to systematically review the comparative effectiveness between LRH and RH in the treatment of cervical cancer based on the evaluation of the Perioperative outcomes, oncological clearance, complications and long-term outcomes. METHODS: The systematic review was conducted by searching PubMed, MEDLINE, EMBASE, the Cochrane Library and BIOSIS databases. All original studies that compared LRH with RH were included for critical appraisal. Data were pooled and analyzed. RESULTS: A total of twelve original studies that compared LRH (n = 754) with RH (n = 785) in patients with cervical cancer fulfilled quality criteria were selected for review and meta-analysis. LRH compared with RH was associated with a significant reduction of intraoperative blood loss (weighted mean difference = -268.4 mL (95 % CI -361.6, -175.1; p < 0.01), a reduced risk of postoperative complications (OR = 0.46; 95 % CI 0.34-0.63) and shorter hospital stay (weighted mean difference = -3.22 days; 95 % CI-4.21, -2.23 days; p < 0.01). These benefits were at the cost of longer operative time (weighted mean difference = 26.9 min (95 % CI 8.08-45.82). The rate of intraoperative complications was similar in the two groups. Lymph nodes yield and positive resection margins were similar between the two groups. There were no significant differences in 5-year overall survival (HR 0.91, 95 % CI 0.48-1.71; p = 0.76) and 5-year disease-free survival (hazard ratio [HR] 0.97, 95 % CI 0.56-1.68; p = 0.91). CONCLUSIONS: LRH shows better short term outcomes compared with RH in patients with cervical cancer. The oncologic outcome and 5-year survival were similar between the two groups.


Assuntos
Laparoscopia , Laparotomia , Neoplasias do Colo do Útero/terapia , Intervalo Livre de Doença , Feminino , Humanos , Histerectomia , Tempo de Internação , Estadiamento de Neoplasias , Complicações Pós-Operatórias , Resultado do Tratamento , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/patologia
15.
Biomed Environ Sci ; 28(5): 330-40, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-26055560

RESUMO

OBJECTIVE: To describe hypertension screening and follow-up management among Chinese population aged 35 years and above within the primary health care system. METHODS: Data from 2010 China Chronic Disease and Risk Factor Surveillance System were used. We investigated previous hypertension diagnosis, screening, and follow-up assessments within the primary health care system. The prevalence of self-reported and criterion-based hypertension, screening rates, demographic and socioeconomic characteristics associated with screening, and patterns of follow-up assessments were recorded. The SAS software system was used for statistical analyses. RESULTS: About 17.1% reported a previous hypertension diagnosis. The rate difference between the two measures of prevalence was 27.2%. Among those without self-reported hypertension, 27.7% reported never visiting a clinic during the past 1 year and 60.4% of those attending a clinic reported ever being screened. Younger age group was associated with lower screening proportion; odds ratios of 35-, 45-, 55-, and ⋝65 years were 1.7 (95% CI: 1.5-1.9), 1.5 (95% CI: 1.3-1.7), 1.3 (95% CI: 1.2-1.4), and 1.0, respectively. About 35.1% of the patients had undergone follow-up assessments four or more times during the past 1 year. CONCLUSION: Majority of the Chinese population aged 35 years and above, particularly the less educated, elderly population, and rural residents were unaware of that they were suffering from hypertension. Most patients did not receive enough management services by the primary health care system. Thus, strengthening both the screening and follow-up management is needed.


Assuntos
Hipertensão/epidemiologia , Hipertensão/prevenção & controle , Vigilância da População/métodos , Atenção Primária à Saúde/organização & administração , Adulto , Idoso , China/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
16.
AJR Am J Roentgenol ; 202(5): 1100-7, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24758666

RESUMO

OBJECTIVE: The objective of our study was to evaluate the CT characteristics of globe rupture. MATERIALS AND METHODS: The medical records of patients seen in the emergency department with blunt, penetrating, or explosive orbit injury were retrospectively reviewed. A total of 75 patients (76 injured globes) were included (56 males and 19 females; average age, 45.1 years; age range, 5-95 years). CT examinations were reviewed by two experienced radiologists without knowledge of ophthalmologic findings, original orbital CT images, or surgical outcomes. RESULTS: Of the 76 globe injuries, 33 (43%) were ruptured and 43 (57%) were nonruptured. There were significant differences between the ruptured and nonruptured globes with respect to intraocular hemorrhage, lens dislocation and destruction, an intraocular foreign body, intraocular gas, anterior chamber depth (ACD), and globe deformity and wall irregularity (p < 0.05). There was good interrater agreement between the two radiologists (kappa value range, 0.63-0.96). The average sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of CT for the detection of globe rupture based on readings by two radiologists were 76%, 85%, 80%, 82%, and 81%, respectively. CONCLUSION: Although CT is extremely useful in the evaluation of ocular trauma, it should not be solely relied on for the diagnosis of globe rupture because of the potentially catastrophic consequences of an undiagnosed injury. A difference in ACD can be diagnostic of globe rupture.


Assuntos
Traumatismos Oculares/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Ruptura , Adulto Jovem
17.
BMC Public Health ; 14: 1080, 2014 Oct 17.
Artigo em Inglês | MEDLINE | ID: mdl-25326029

RESUMO

BACKGROUND: Obesity and high blood pressure (BP) are public health problems all over the world. Some studies have reported a positive association between them in children and adolescents. The purpose of this study was to assess the prevalence of overweight and obesity and their associations with BP among school children and adolescents in Shandong, an important province in eastern China. METHODS: In 2011, we conducted a cross-sectional population-representative survey in Shandong, China. A total of 4 898 children and adolescents aged 6-17 years were randomly selected from 140 counties/districts using a multistage random cluster sampling. Weight, height and BP were measured by a trained physician or pediatrician, and information about age, gender and place of residence was obtained using questionnaires. Obesity and high BP were defined according to age- and gender-specific Chinese reference data for children. RESULTS: A total of 4 898 (100%) children and adolescents provided complete information. The prevalence of overweight, obesity and overweight plus obesity were 10.9%, 8.7% and 19.6%, respectively. Boys were more likely to be overweight or obese than girls (P < 0.05 for overweight; P < 0.001 for obesity). The prevalence of overweight plus obesity was highest among children aged 6-11 years (22.3%). BP and the prevalence of high BP increased with increasing body mass index (BMI). With age and sex adjusted, odds ratios (ORs) for high BP were [OR 2.2;95% CI 1.7-2.8) in overweight and [OR 3.6;95% CI 2.6-4.9] in obese children. CONCLUSION: The representative survey confirms high prevalence of overweight and obesity among children and adolescents in Shandong. Childhood obesity is a strong risk factor for high BP. Intervention programs should be implemented to combat the growing obesity epidemic.


Assuntos
Hipertensão/epidemiologia , Obesidade Infantil/epidemiologia , Adolescente , Pressão Sanguínea/fisiologia , Índice de Massa Corporal , Peso Corporal , Criança , China/epidemiologia , Estudos Transversais , Feminino , Humanos , Masculino , Razão de Chances , Sobrepeso/epidemiologia , Prevalência , Fatores de Risco
18.
Biomed Environ Sci ; 27(7): 564-6, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25073917

RESUMO

Dietary sodium intake and its impact factors in 2 140 adults aged 18-69 years were analyzed. The mean daily sodium intake was 5745.0 (5427.6-6062.5) mg per day, which was higher in males than in females (P<0.01). After having been adjusted for gender, age and urban/city areas, the mean daily sodium intake was significantly higher in participants with a lower education level, drinkers and smokers than in those with a higher education level, nondrinkers and nonsmokers (P<0.01). The dietary sodium intake in adults of Shandong Province is higher than the recommended standards.


Assuntos
Sódio na Dieta/administração & dosagem , Sódio na Dieta/efeitos adversos , Adolescente , Adulto , Idoso , China , Feminino , Humanos , Hipertensão/etiologia , Masculino , Pessoa de Meia-Idade , Adulto Jovem
19.
J Vet Med Educ ; 41(2): 197-203, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24589865

RESUMO

The ability to assess and control pain is listed as one of the desired Day One competencies among veterinary graduates. As such, a study was conducted to examine the current status and effectiveness of a video-based training module on the attitude toward and knowledge of pain assessment in cats among fourth- and final-year veterinary students of Universiti Putra Malaysia (UPM) in January of 2013. A total of 92 students participated in this study, resulting in a response rate of 60.1%. Upon completion of a pre-training survey, the respondents undertook an interactive video-based presentation, followed by a post-training survey. The majority of the students (96.7%) agreed on the importance of pain management. Before the training, many (76.1%) disagreed that they had received adequate training, while 53.3% were not confident in their pain-recognition skills. After training, their knowledge and confidence in pain assessment increased. Responses to the survey were not associated with differences in gender, level of study, or field of interest. Students were found to have mistaken some physiologic parameters as good pain indicators after ovariohysterectomy. Their assessment of three standardized video cases revealed that they could recognize prominent signs of pain but failed to identify changes in behavior that were more subtle. Refinement to the training module is required to address the above deficiencies.


Assuntos
Doenças do Gato/diagnóstico , Educação em Veterinária , Conhecimentos, Atitudes e Prática em Saúde , Medição da Dor/métodos , Dor Pós-Operatória/veterinária , Animais , Gatos , Educação em Veterinária/métodos , Malásia , Medição da Dor/veterinária , Dor Pós-Operatória/diagnóstico , Estudantes de Ciências da Saúde , Inquéritos e Questionários
20.
Int Dent J ; 74(4): 762-768, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38350801

RESUMO

OBJECTIVES: The aim of this research was to compare the penetration ability of calcium silicate-based sealers (iRoot SP and TotalFill BC HiFlow) and an epoxy resin-based sealer (AH Plus) into the lateral canals using the single-cone (SC) or continuous wave compaction (CW) obturation techniques. METHODS: Ninety single-rooted human teeth received canal instrumentation and diaphanisation before artificial lateral canals were created at 3 different root levels. The specimens were randomly allocated into 6 groups based on the combination of obturation technique and sealer used. Radiographic and photographic measurements evaluated the percentage of sealer penetration. Statistical analysis was performed to compare the penetration ability amongst different types of sealers, obturation methods, and root levels. RESULTS: Although TotalFill BC HiFlow sealer combined with the CW technique demonstrated greater sealer penetration at the coronal level (P < .05), the overall penetration ability of iRoot SP, TotalFill BC HiFlow, and AH Plus was not significantly different. The deepest sealer penetration was observed at the apical root level. CONCLUSIONS: All sealers showed similar penetration abilities into the lateral canals using the SC or CW techniques in vitro. Calcium silicate-based sealers have comparable penetration ability into lateral canals compared to epoxy resin-based sealers using SC or CW obturation techniques.


Assuntos
Compostos de Cálcio , Cavidade Pulpar , Resinas Epóxi , Materiais Restauradores do Canal Radicular , Obturação do Canal Radicular , Silicatos , Resinas Epóxi/química , Materiais Restauradores do Canal Radicular/química , Humanos , Silicatos/química , Compostos de Cálcio/química , Obturação do Canal Radicular/métodos , Teste de Materiais , Preparo de Canal Radicular/métodos , Preparo de Canal Radicular/instrumentação
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