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1.
Clin Radiol ; 76(6): 473.e1-473.e7, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33706997

RESUMO

AIM: To evaluate whether portable chest radiography (CXR) scores are associated with coronavirus disease 2019 (COVID-19) status and various clinical outcomes. MATERIALS AND METHODS: This retrospective study included 500 initial CXR from COVID-19-suspected patients. Each CXR was scored based on geographic extent and degree of opacity as indicators of disease severity. COVID-19 status and clinical outcomes including intensive care unit (ICU) admission, mechanical ventilation, mortality, length of hospitalisation, and duration on ventilator were collected. Multivariable logistic regression analysis was performed to evaluate the relationship between CXR scores and COVID-19 status, CXR scores and clinical outcomes, adjusted for code status, age, gender and co-morbidities. RESULTS: The interclass correlation coefficients amongst raters were 0.94 and 0.90 for the extent score and opacity score, respectively. CXR scores were significantly (p < 0.01) associated with COVID-19 positivity (odd ratio [OR] = 1.49; 95% confidence interval [CI]: 1.27 - 1.75 for extent score and OR = 1.75; 95% CI: 1.42 - 2.15 for opacity score), ICU admission (OR = 1.19; 95% CI: 1.09 - 1.31 for extent score and OR = 1.26; 95% CI: 1.10 - 1.44 for opacity score), and invasive mechanical ventilation (OR = 1.22; 95% CI: 1.11 - 1.35 for geographic score and OR = 1.21; 95% CI: 1.05 - 1.38 for opacity score). CXR scores were not significantly different between survivors and non-survivors after adjusting for code status (p>0.05). CXR scores were not associated with length of hospitalisation or duration on ventilation (p>0.05). CONCLUSIONS: Initial CXR scores have prognostic value and are associated with COVID-19 positivity, ICU admission, and mechanical ventilation.


Assuntos
COVID-19/diagnóstico por imagem , COVID-19/terapia , Cuidados Críticos , Pulmão/diagnóstico por imagem , Respiração Artificial , Idoso , Feminino , Humanos , Unidades de Terapia Intensiva , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Radiografia , Radiografia Torácica , Análise de Regressão , Estudos Retrospectivos , Fatores de Risco , SARS-CoV-2 , Índice de Gravidade de Doença , Triagem
2.
J Biol Phys ; 47(4): 499-520, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34618313

RESUMO

As part of the growing evolution in nanotechnology and thermal sciences, nanoparticles are considered as an alternative solution for the energy depletion due to their ultra-high thermal effectives. Nanofluids reflect inclusive and broad-spectrum significances in engineering, industrial and bio-engineering like power plants, energy source, air conditioning systems, surface coatings, evaporators, power consumptions, nano-medicine, cancer treatment, etc. The present study describes the bio-convective peristaltic flow of a third-grade nanofluid in a tapered asymmetric channel. Basic conservation laws of mass, momentum, energy, and concentration as well as the microorganism diffusion equation are utilized to model the problem. The simplified form of the modeled expressions is accounted with long wavelength assumptions. For solving the resulting coupled and nonlinear equations, a well-known numerical method implicit finite difference scheme has been utilized. The graphical results describe the velocity, temperature and concentration profiles, and the density of motile microorganisms at the nanoscale. Furthermore, microorganism concentration lines are analyzed.


Assuntos
Nanopartículas , Peristaltismo , Movimento (Física) , Temperatura
3.
Bratisl Lek Listy ; 122(7): 507-512, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34161119

RESUMO

OBJECTIVES: The aim of this study is to investigate the effect of two abundant dietary supplements, quercetin and vitamin C on some factors involved in metastasis and proliferation of prostate cancer, which are resistant to conventional chemotherapies in late stages. BACKGROUND: Bone and brain are two common sites of metastases in prostate cancer, nevertheless the factors involved in their metastatic pathways are not well understood. METHODS: The effect of quercetin (75µM) and vitamin C (100 µM) on CXCR4, CXCR7 chemokine receptors, α4, α5 and ß1 integrins, ki-67 proliferation marker and Vascular endothelial growth factor, VEGF was evaluated using Quantitative Reverse Transcription PCR (RT-qPCR). RESULTS: The effect of quercetin and vitamin C alone was different on PC3 and DU145 prostate cancer cell lines, but sequential combination reduced significantly the expression of CXCR and CXCR7 chemokine receptors, α4, α5 and ß1 integrin subunits, VEGF and Ki-67 proliferation markers in PC3 and DU145 cell lines. CONCLUSION: Our results indicated the beneficial effect of quercetin and vitamin C on prostate cancer cells with different metastatic sites and their differential response to the treatment which in turn may lead us to reach suitable therapeutic outcomes to combat cancer (Fig. 3, Ref. 36).


Assuntos
Neoplasias da Próstata , Quercetina , Ácido Ascórbico/farmacologia , Linhagem Celular Tumoral , Fibronectinas , Humanos , Integrinas , Masculino , Neoplasias da Próstata/tratamento farmacológico , Quercetina/farmacologia , Fator A de Crescimento do Endotélio Vascular
4.
Diabetologia ; 62(8): 1518-1519, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31190157

RESUMO

The values given for copeptin levels in men in quartiles 1 and 2 (Table 1) were incorrect, and should have read.

5.
Exerc Immunol Rev ; 25: 50-62, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30785869

RESUMO

BACKGROUND: Aerobic training (AT) decreases airway inflammation in asthma, but the underlying cellular and molecular mechanisms are not completely understood. Thus, this study evaluated the participation of SOCS-JAK-STAT signaling in the effects of AT on airway inflammation, remodeling and hyperresponsiveness in a model of allergic airway inflammation. METHODS: C57Bl/6 mice were divided into Control (Co), Exercise (Ex), HDM (HDM), and HDM+Exercise (HDM+ Ex). Dermatophagoides pteronyssinus (100ug/mouse) were administered oro-tracheally on days 0, 7, 14, 21, 28, 35, 42 and 49. AT was performed in a treadmill during 4 weeks in moderate intensity, from day 24 until day 52. RESULTS: AT inhibited HDM-induced total cells (p<0.001), eosinophils (p<0.01), neutrophils (p<0.01) and lymphocytes (p<0.01) in BAL, and eosinophils (p<0.01), neutrophils (p<0.01) and lymphocytes (p<0.01) in peribronchial space. AT also reduced BAL levels of IL-4 (p<0.001), IL-5 (p<0.001), IL-13 (p<0.001), CXCL1 (p<0.01), IL-17 (p<0.01), IL-23 (p<0.05), IL-33 (p<0.05), while increased IL- 10 (p<0.05). Airway collagen fibers (p<0.01), elastic fibers p<0.01) and mucin (p<0.01) were also reduced by AT. AT also inhibited HDM-induced airway hyperresponsiveness (AHR) to methacholine 6,25mg/ml (p<0.01), 12,5mg/mL (p<0.01), 25mg/mL (p<0.01) and 50mg/mL (p<0.01). Mechanistically, AT reduced the expression of STAT6 (p<0.05), STAT3 (p<0.001), STAT5 (p<0.01) and JAK2 (p<0.001), similarly by peribronchial leukocytes and by airway epithelial cells. SOCS1 expression (p<0.001) was upregulated in leukocytes and in epithelial cells, SOCS2 (p<0.01) was upregulated in leukocytes and SOCS3 down-regulated in leukocytes (p<0.05) and in epithelial cells (p<0.001). CONCLUSIONS: AT reduces asthma phenotype involving SOCSJAK- STAT signaling.


Assuntos
Asma/metabolismo , Janus Quinases/metabolismo , Condicionamento Físico Animal , Fatores de Transcrição STAT/metabolismo , Transdução de Sinais , Proteínas Supressoras da Sinalização de Citocina/metabolismo , Animais , Modelos Animais de Doenças , Eosinófilos/citologia , Interleucinas/metabolismo , Linfócitos/citologia , Cloreto de Metacolina , Camundongos , Camundongos Endogâmicos C57BL , Neutrófilos/citologia , Hipersensibilidade Respiratória/metabolismo
6.
Andrologia ; 50(1)2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28295487

RESUMO

Intensive sports practice seems to exert negative effects on semen parameters; in order to assess these effects, the objective of this study was to assess semen, including DNA fragmentation, and hormone parameters in elite triathletes. Twelve high-level triathletes preparing for a National Triathlon Championship participated in the study. The qualitative sperm parameters analysed were volume, sperm count, motility, morphology and DNA fragmentation; when needed, additional testing was performed. Assessed hormones were testosterone (T), cortisol (C) and testosterone-cortisol ratio (T/C). Maximum oxygen consumption and training characteristics were also assessed. Hormonal values and physical semen parameters were within normal ranges. DNA fragmentation showed high values (20.4 ± 6.1%). Round cells in semen were higher than normal (2.8 ± 1.5 million/ml), with the presence of macrophages. Correlations were found for several parameters: concentration of round cells positively correlated with progressive sperm motility (p = .01) and sperm morphology (p = .02); contrarily, the correlation found with DNA fragmentation was negative (p = .04). Sperm DNA fragmentation and the T/C ratio, however, were correlated in a positive manner (p = .03). As evidenced by the observed results, sperm DNA fragmentation is affected by high-level sports practice; therefore, high loads of endurance training could potentially interfere with the athlete's fertility potential.


Assuntos
Atletas , Fragmentação do DNA , Condicionamento Físico Humano/fisiologia , Resistência Física/genética , Espermatozoides/metabolismo , Adulto , Humanos , Masculino , Análise do Sêmen , Contagem de Espermatozoides , Motilidade dos Espermatozoides/fisiologia , Adulto Jovem
7.
Pol J Vet Sci ; 21(3): 517-524, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30468338

RESUMO

The present study was aimed to investigate oxidative stress, DNA damage, and histopatholog- ical alterations in hepatic tissues of splenectomized Wistar rats experimentally infected with Ba- besia bigemina. Rats were challenged with 5x106 infected erythrocytes. Babesia infection was con- firmed both with Giemsa's staining blood smears and nested-PCR amplified region of apical membrane antigen-1 (AMA-1) gene. Parasitemia reached approximately 10 % at day 5 post-in- fection. Livers of infected rats were enlarged and darker in color, became extremely brittle with marked congestion. Microscopic evaluation showed cytoplasmic clearing of hepatocytes and se- vere hydropic changes with significantly dilated sinusoids containing macrophages and also intra- sinosoidal parasitized erythrocytes. Severe infiltration of lymphoplasma cells was also present throughout the liver parenchyma. Furthermore, Kupffer cells were enlarged and, occasionally, containing Babesia-parasitized erythrocytes. The activity of Glutathione (GSH) and catalase (CAT), and total antioxidant capacity (TAC) were also significantly decreased (p ⟨ 0.05) after infection of rats with B. bigemina. B. bigemina infection also induced a significant increase (p ⟨ 0.05) in hepatic malondialdehyde (MDA) and nitric oxide-derived products (NOx) concentra- tions as well as amount of endogenous hepatocytes DNA damage. Hepatic damage was also re- flected through the measurement of lactic acid dehydrogenase (LDH) and protein carbonyl con- tent (PCO) in liver cells. These two indices of liver injury were also significantly elevated (p ⟨ 0.5) during B. bigemina infection. Evaluation of correlation between assayed variables in infected rats revealed that MDA levels were positively correlated with PCO, NOx, LDH and DNA damage in the infected group and negatively correlated with GSH, CAT and TAC. There was also an inverse relationship between the antioxidant enzymes activities of GSH, CAT and TAC with PCO, NOx and DNA damage in infected rats. However, NOx showed positive correlation with PCO and DNA damage in infected rats. On the basis of the above results it can be concluded that the Ba- besia infection increases oxidative stress markers, protein carbonyl content and DNA damage and decreases antioxidant enzymes activities in the liver. These results suggest that B. bigemina infec- tion could alter the liver histopathology and causes DNA damage following oxidative stress in hepatic tissue. Further studies are needed to precisely define how hepatic tissue damage takes place in B. bigemina infection.


Assuntos
Babesia/classificação , Babesiose/patologia , Hepatopatias/parasitologia , Animais , Hepatopatias/patologia , Masculino , Ratos , Ratos Wistar
8.
Int J Dent Hyg ; 16(1): 165-170, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28116859

RESUMO

OBJECTIVES: This case-control study aimed to compare patients with temporomandibular disorders (TMD) and healthy controls in terms of oral health-related quality of life (OHRQoL) considering Graded Chronic Pain Scale (GCPS) scores, pain duration, psychological impairment and demographic characteristics. METHODS: A total of 75 patients with TMD and 75 healthy controls were recruited. The short version of Oral Health Impact Profile (OHIP-14) was administered for evaluating the OHRQoL. Psychosocial impairments were assessed using the General Health Questionnaire-28 (GHQ-28). The Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) axis I and II were also used for patient diagnosis and collecting GCPS scores, pain duration, age and gender. Independent-sample t tests, Pearson's chi-square tests and multiple logistic and linear regression models were applied for statistical analysis. RESULTS: The mean age of the patients was 34.3±12.4 years. A female-to-male ratio of 6:1 was seen in the TMD group. The prevalence and severity of the OHIP were significantly different between the TMD and control groups (66.7% vs 12.0% and 18.0 vs 9.2, respectively). According to multiple logistic regression for OHIP prevalence and multiple linear regression for OHIP severity in the TMD group, GCPS scores and pain duration, followed by psychological impairment, were the most important predictors of the OHRQoL. CONCLUSION: TMD negatively affected the OHRQoL, particularly in patients with psychological impairments. Meanwhile, age and gender did not seem to have a serious effect. Hence, promoting the quality of life of patients with TMD requires emphasis on chronic pain management and maintaining good mental health.


Assuntos
Saúde Bucal , Qualidade de Vida , Transtornos da Articulação Temporomandibular/psicologia , Adulto , Estudos de Casos e Controles , Dor Crônica/psicologia , Feminino , Humanos , Irã (Geográfico) , Masculino , Índice de Gravidade de Doença
9.
Parasite Immunol ; 39(11)2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28921566

RESUMO

Although there have been several attempts to develop a vaccine against leishmaniasis, no vaccine in human has been developed yet. Liposomes consisting of 1, 2-dioleoyl-3-trimethylammonium-propane (DOTAP) encapsulating soluble Leishmania antigens (SLA) enhance protective immunity of SLA against Leishmania major infection in mice. However, they immobilized at the injection site because of their positive charge. To overcome the problem, shielding the surface charge with polyethylene glycol (PEGylation) was chosen in this study. Liposomal SLA consisting different concentrations of PEG (1.9%-15% mol) were prepared. BALB/c mice were immunized three times in 3 weeks intervals with different formulations. Lesion development and parasite burden in footpad and spleen were evaluated to specify the type of generated immune response and extent of protection. Th1/Th2 cytokine profiles and IgG isotypes were also analysed. The maximum protection was observed in mice immunized with Lip-SLA or pLip-SLA (1.9%) due to smaller footpad swelling, reduction in parasite load, an increase in IgG2a and IFN-γ production. Our results showed that immunization of mice with a high level of PEG (>7.5%) did not improve protective immunity of liposomal SLA. The presence of PEG, particularly more than 3.75%, is not recommended for protection against leishmaniasis.


Assuntos
Anticorpos Antiprotozoários/sangue , Antígenos de Protozoários/imunologia , Imunoglobulina G/sangue , Leishmania major/imunologia , Vacinas contra Leishmaniose/imunologia , Lipossomos/imunologia , Polietilenoglicóis/química , Adjuvantes Imunológicos/metabolismo , Animais , Anticorpos Antiprotozoários/imunologia , Citocinas/sangue , Citocinas/imunologia , Modelos Animais de Doenças , Ácidos Graxos Monoinsaturados/química , Ácidos Graxos Monoinsaturados/imunologia , Feminino , Imunoglobulina G/imunologia , Interferon gama/biossíntese , Interferon gama/imunologia , Leishmaniose/imunologia , Leishmaniose/parasitologia , Leishmaniose/prevenção & controle , Lipossomos/química , Camundongos , Camundongos Endogâmicos BALB C , Carga Parasitária , Compostos de Amônio Quaternário/química , Compostos de Amônio Quaternário/imunologia , Baço/citologia , Baço/imunologia , Células Th1/imunologia , Células Th2/imunologia , Vacinação
10.
Cell Mol Biol (Noisy-le-grand) ; 63(7): 89-93, 2017 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-28838346

RESUMO

Leptin is a 16-kDa peptide hormone secreted by adipose tissue that participates in the regulation of energy homeostasis. The aim of this study was to determine the effect of leptin injection on mRNA expression of peroxisome proliferator-activated receptor gamma (PPAR-γ) and comparison of PPAR-γ mRNA expression in rat's adipose and liver tissue. Twenty adult male rats were divided into the following groups: Group 1asa control (n=10) that did not receive any treatment. Group 2as a treatment (n=10) that received leptin (30 µg / kg BW) intraperitoneally (ip) for two successive days. Blood samples were taken before and one day after second leptin injection for triglyceride (TG), Free Fatty Acid (FFA), HLD-cholesterol, and LDL-cholesterol measurement. Total RNA was extractedfrom the adipose tissue and liver tissues of rats.  Adipose and liver tissue cells' cDNA was synthesized to characterize the expression of PPAR-γ. Gene expression of PPAR-γ mRNA was tested by RT- PCR technique. Results show leptin decreases expression of PPAR-γ on rat. Low levels of PPAR-γ mRNA were detected in adipose and liver tissues of treatment rats in comparison to control group. In treatment group, the level of PPAR-γ mRNA in liver tissue was very lower than the adipose tissue. The levels of HDL and FFA in treatment rats were increased whereas serum levels TG, VLDL and LDL were not changed. It is concluded that leptin signal with suppressing of PPAR-γ mRNA expression in rat's adipose and liver tissues can result in lipolysis instead of lipogenesis.


Assuntos
Tecido Adiposo/metabolismo , Leptina/farmacologia , Fígado/metabolismo , PPAR gama/genética , Animais , Ácidos Graxos/sangue , Regulação da Expressão Gênica/efeitos dos fármacos , Lipoproteínas HDL/sangue , Lipoproteínas VLDL/sangue , Masculino , PPAR gama/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Ratos , Triglicerídeos/sangue
11.
Acta Endocrinol (Buchar) ; 12(4): 387-391, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-31149120

RESUMO

CONTEXT: Thyroid cancer is the most common endocrine malignancy. Within various subtypes of thyroid neoplasms, those with follicular growth pattern usually make diagnostic problems. OBJECTIVE: To examine ck19 expression as a diagnostic marker in thyroid neoplasms with follicular growth pattern. DESIGN: In this cross sectional study, 86 patients were enrolled. SUBJECTS AND METHODS: Totally 22 follicular adenoma (FA), 18 well differentiated tumors with undetermined malignant potential (WT-UMP) and 46 follicular variants of papillary thyroid carcinoma (FV-PTC) were enrolled and examined for Ck19 expression by immunohistochemistry staining. Membranous/cytoplasmic staining patterns were considered as positive. Specimens without staining were considered as 0, < 5% positively stained cells as 1+, 5%-25% as 2+, 25%-75% as 3+ and >75% as 4+. RESULT: CK19 was negative in most cases of FA while positive in most WDT-UMP and FV-PTCs, p<0.001. Additionally, most cases with 2+ and 3+ staining patterns were FV-PTC (75% and 81%, respectively, p<0.001) and none of FAs showed 3+ positivity (p<0.001). Additionally, most of strongly positive results in patients > 45 y/o were PTC (p<0.001). CONCLUSION: Ck19 is a useful marker in differentiating FA from FV-PTC. We found diffuse and strong (3+) staining pattern in FV-PTC but none of FAs were so. We concluded that diffuse and strong staining for ck19 in a thyroid lesion with follicular pattern of growth, especially in a patient older than 45 y/o should raise the possibility of malignancy.

12.
Exp Parasitol ; 143: 5-10, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24780938

RESUMO

Treatment of cutaneous leishmaniasis (CL) is a dream for the patients, health care authorities and scientists. The aim of this study was to develop a topical liposomal meglumine antimoniate (MA, Glucantime™) (Lip-MA) formulation and evaluate the therapeutic effects of the preparation on lesion induced by Leishmania major in BALB/c mice. Liposomes containing 22.5% MA (6.4% Sb(+5)) with and without oleic acid (LMA-OA and LMA) were formulated using fusion method plus homogenization and characterized for the size and encapsulation efficiency. The penetration of MA from the LMA-OA and LMA formulations through and into the skin was checked in vitro using Franz diffusion cells fitted with mouse skin at 37°C for 8h. The in vitro permeation data showed that almost 1.5% of formulations applied in the mouse skin were penetrated and the amount retained in the skin was about 65%. The 50% effective dose of LMA and LMA-OA against amastigotes of L. major was 46.36 and 41.01 µg/ml, respectively. LMA or LMA-OA was used topically twice a day for 4 weeks to treat the lesion induced by L. major in susceptible BALB/c mice. The results showed a significantly (P<0.001) smaller lesion size in the treated groups of mice compared to the control groups which received either empty liposomes or phosphate-buffered saline (PBS). The spleen parasite burden was significantly (P<0.001) lower in the treated groups compared to the control groups receiving either empty liposomes or PBS at the end of the treatment period. However, when the treatment was stopped, the lesion size progressed and spleen parasite burden increased in LMA and LMA-OA groups, but still was significantly less than the control groups (P<0.05). There was no significant difference between the two formulations of LMA and LMA-OA. The results suggested that topical liposomes containing MA might be an appropriate choice for clinical trials for the treatment of CL.


Assuntos
Antiprotozoários/administração & dosagem , Leishmania major/efeitos dos fármacos , Leishmaniose Cutânea/tratamento farmacológico , Meglumina/administração & dosagem , Compostos Organometálicos/administração & dosagem , Administração Tópica , Animais , Antiprotozoários/farmacocinética , Linhagem Celular , Feminino , Leishmania major/crescimento & desenvolvimento , Lipossomos , Macrófagos/metabolismo , Macrófagos/parasitologia , Meglumina/farmacocinética , Antimoniato de Meglumina , Camundongos , Camundongos Endogâmicos BALB C , Compostos Organometálicos/farmacocinética , Distribuição Aleatória , Pele/metabolismo , Baço/parasitologia
14.
Hernia ; 27(6): 1363-1373, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37597107

RESUMO

PURPOSE: Chronic post-operative inguinal pain (CPIP) following inguinal hernia repair has been a major sequela affecting 4000-48000 patients annually. Optimal management of CPIP has been a challenge, and pharmacological management particularly with opioids has shown unsatisfactory results. The main objective of this systematic review is to investigate the safety and efficacy of neuromodulation as an alternative intervention for the management of post-operative inguinal pain. METHODS: A literature search was conducted by three reviewers to identify all relevant studies on the use of neuromodulatory interventions for treating post-operative inguinal pain. Data on study characteristics, neuromodulatory modalities, and patient's clinical data such as pre/post-interventional pain scores and analgesic requirements were extracted and reported. RESULTS: A total of 389 patients with 357 (95.9%) males and 15 (4.1%) females were evaluated. The mean age of study participants was 47.9 ± 10.4 years. There were 187 (48.1%) and 202 (51.9%) patients allocated to the control and trial groups, respectively. The most common neuromodulation modality was TENS (4, 36.4%), followed by SCS (3, 27.3%), PNS (3, 27.3%), and acupuncture-assisted (2, 18.2%). The overall mean follow-up duration of the entire cohort was 3.8 months. The mean difference between pre-operative and post-operative VAS scores in the trial groups was 4.65 (95% Confidence Interval [CI], 2.97, 6.33), which was statistically significant (P value < 0.05). Patient-reported outcome measures showed significant responsiveness toward their treatments. CONCLUSION: Nerve stimulation, in its many forms, is a safe and feasible option for the management of post-operative inguinal pain.


Assuntos
Dor Crônica , Hérnia Inguinal , Masculino , Feminino , Humanos , Adulto , Pessoa de Meia-Idade , Virilha/cirurgia , Herniorrafia/efeitos adversos , Herniorrafia/métodos , Dor Pós-Operatória/terapia , Dor Pós-Operatória/cirurgia , Hérnia Inguinal/cirurgia , Dor Crônica/terapia , Dor Crônica/cirurgia , Telas Cirúrgicas
15.
Diabetologia ; 55(7): 1963-70, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22526609

RESUMO

AIMS/HYPOTHESIS: Vasopressin plays a role in osmoregulation, glucose homeostasis and inflammation. Therefore, plasma copeptin, the stable C-terminal portion of the precursor of vasopressin, has strong potential as a biomarker for the cardiometabolic syndrome and diabetes. Previous results were contradictory, which may be explained by differences between men and women in responsiveness of the vasopressin system. The aim of this study was to evaluate the usefulness of copeptin for prediction of future type 2 diabetes in men and women separately. METHODS: From the Prevention of Renal and Vascular Endstage Disease (PREVEND) study, 4,063 women and 3,909 men without diabetes at baseline were included. A total of 208 women and 288 men developed diabetes during a median follow-up of 7.7 years. RESULTS: In multivariable-adjusted models, we observed a stronger association of copeptin with risk of future diabetes in women (OR 1.49 [95% CI 1.24, 1.79]) than in men (OR 1.01 [95% CI 0.85, 1.19]) (p (interaction) < 0.01). The addition of copeptin to the Data from the Epidemiological Study on the Insulin Resistance Syndrome (DESIR) clinical model improved the discriminative value (C-statistic,+0.007, p = 0.02) and reclassification (integrated discrimination improvement [IDI] = 0.004, p < 0.01) in women. However, we observed no improvement in men. The additive value of copeptin in women was maintained when other independent predictors, such as glucose, high sensitivity C-reactive protein (hs-CRP) and 24 h urinary albumin excretion (UAE), were included in the model. CONCLUSIONS/INTERPRETATION: The association of plasma copeptin with the risk of developing diabetes was stronger in women than in men. Plasma copeptin alone, and along with existing biomarkers (glucose, hs-CRP and UAE), significantly improved the risk prediction for diabetes in women.


Assuntos
Diabetes Mellitus Tipo 2/sangue , Angiopatias Diabéticas/sangue , Nefropatias Diabéticas/sangue , Glicopeptídeos/sangue , Falência Renal Crônica/sangue , Adulto , Idoso , Biomarcadores/sangue , Estudos de Coortes , Diabetes Mellitus Tipo 2/epidemiologia , Angiopatias Diabéticas/epidemiologia , Angiopatias Diabéticas/prevenção & controle , Nefropatias Diabéticas/epidemiologia , Nefropatias Diabéticas/prevenção & controle , Feminino , Seguimentos , Humanos , Falência Renal Crônica/epidemiologia , Falência Renal Crônica/prevenção & controle , Masculino , Pessoa de Meia-Idade , Países Baixos/epidemiologia , Valor Preditivo dos Testes , Precursores de Proteínas/sangue , Fatores de Risco , Fatores Sexuais , Fatores de Tempo
16.
Br J Dermatol ; 166(5): 1010-6, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-21967250

RESUMO

BACKGROUND: Male pattern baldness or androgenetic alopecia is a common disorder affecting almost 50% of men throughout their lifetime, with androgens and genetics having significant contributing aetiologies. In contrast to the positive regulatory effect of androgens on body hair growth, they are thought to alter scalp hair follicle behaviour pathophysiologically, leading to male pattern baldness. However, the exact mechanisms of this paradoxical action have not yet been elucidated. The role of microRNAs, a novel group of noncoding RNAs impacting almost every aspect of biology, health and human diseases, has been documented in hair follicle formation. In addition, their deregulation in cancer of the prostate, a target organ of androgens, has also been well established. OBJECTIVES: To investigate the possible contribution of microRNAs in the pathophysiology of male pattern baldness. METHODS: We initially screened microRNA expression profiles of balding and nonbalding hair follicle papillae with a sensitive microRNA cloning method, microRNA amplification profiling, and statistically analysed significant differentially expressed microRNAs in balding relative to nonbalding dermal papillae, with real-time polymerase chain reaction as a confirmatory method to quantify expression in eight individuals affected with the disorder. RESULTS: We detected the significant upregulation of miR-221, miR-125b, miR-106a and miR-410 in balding papilla cells. CONCLUSIONS: We found four microRNAs that could participate in the pathogenesis of male pattern baldness. Regarding the strong therapeutic potential of microRNAs and the easy accessibility of hair follicles for gene therapy, microRNAs are possible candidates for a new generation of revolutionary treatments.


Assuntos
Alopecia/genética , MicroRNAs/genética , Células Clonais , DNA Complementar/genética , Expressão Gênica/genética , Biblioteca Gênica , Folículo Piloso/citologia , Humanos , Masculino , Técnicas de Amplificação de Ácido Nucleico , Reação em Cadeia da Polimerase em Tempo Real , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Regulação para Cima
17.
Micromachines (Basel) ; 13(9)2022 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-36144038

RESUMO

Curved veins and arteries make up the human cardiovascular system, and the peristalsis process underlies the blood flowing in these ducts. The blood flow in the presence of hybrid nanoparticles through a tapered complex wavy curved channel is numerically investigated. The behavior of the blood is characterized by the Casson fluid model while the physical properties of iron (Fe3O4) and copper (Cu) are used in the analysis. The fundamental laws of mass, momentum and energy give rise the system of nonlinear coupled partial differential equations which are normalized using the variables, and the resulting set of governing relations are simplified in view of a smaller Reynolds model approach. The numerical simulations are performed using the computational software Mathematica's built-in ND scheme. It is noted that the velocity of the blood is abated by the nanoparticles' concentration and assisted in the non-uniform channel core. Furthermore, the nanoparticles' volume fraction and the dimensionless curvature of the channel reduce the temperature profile.

18.
Braz J Biol ; 84: e261446, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35830131

RESUMO

Asiatic black bear has long been in conflict with human beings crop raiding is a major cause of this conflict frequently noted in South Asia. Crops raided by black bears affected by temporal, spatial and anthropogenic attributes. Insight in this conflict and its mitigation is vital for the conservation of this threatened species. Present study aimed to evaluate crop raiding by black bears in the mountainous region of Azad Jammu and Kashmir. Field surveys were carried out to observe spatial and temporal crop raiding features between 2015-2020 and data gathered using designed questionnaires randomly tailored in villages nearby the forests. Results revealed that maize was the sole crop raided by black bears. A total of 28-acre area was raided by black bear in the fall season (Aug-November) resulting in a damage of 51 metric tons, whole raiding was carried out at night. Each respondent received crop damage on 0.09 acre with a loss of 0.17 metric ton yield. Crop quantity and area were significantly correlated to each other. District Neelum shared 49% of the total crop loss, while 47% of the maize was raided at the altitudinal range of 2100-2500 m. crop raiding was highly significantly ( χ 2 = 1174.64 ; d f = 308 ;   p < 0.01 ) dependent upon distance to the forest. Linear regression revealed that maize quantity was determined by area, time and the total field area. Farmers faced 3.8 million PKRs loss due to crop damage by black bears. Despite the huge loss, the majority (23%) of the respondents did not respond to the query on mitigation measures indicating a poor adaptation of preventive measures. Preferred strategy to avoid crop damage was making noise (27.8%) when bears attacked their crops. A start of compensation scheme to the farmers is recommended that will have turned their negative attitude into a positive one toward the wildlife and black bear particularly. Study provides a new insight in human-bear conflict, particularly in spatial and temporal context of crop raiding in AJ&K.


Assuntos
Ursidae , Animais , Conservação dos Recursos Naturais/métodos , Produtos Agrícolas , Florestas , Humanos , Paquistão
19.
Anal Chem ; 83(8): 2877-82, 2011 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-21413785

RESUMO

For imaging with different modalities, labels, which provide contrast for all modalities, are required. Colloidal nanoparticles composed out of an inorganic core and a polymer shell offer progress in this direction. Both, the core and the polymer shell, can be synthesized to be fluorescent, magnetic, or radioactive. When different cores are combined with different polymer shells, different types of particles for dual imaging can be obtained, as for example, fluorescent cores with radioactive polymer shells. Properties and perspectives of such nanoparticles for multimodal imaging are discussed.


Assuntos
Imagem Molecular , Nanopartículas/química , Coloides/síntese química , Coloides/química , Corantes Fluorescentes/síntese química , Corantes Fluorescentes/química , Magnetismo , Polímeros/síntese química , Polímeros/química
20.
J Intern Med ; 270(4): 388-96, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21251094

RESUMO

OBJECTIVE: Transmission of family history of type 2 diabetes to the next generation is stronger for maternal than paternal diabetes in some populations. The aim of the present study was to investigate whether this difference is explained by diet, lifestyle factors and/or adiposity. METHODS: We analysed 35174 participants from the Dutch contribution to the European Prospective Investigation into Cancer and Nutrition, a prospective population-based cohort (aged 20-70 years) with a median follow-up of 10.2 years. Parental history of diabetes was self-reported. Occurrence of diabetes was mainly identified by self-report and verified by medical records. RESULTS: Amongst 35174 participants, 799 incident cases of diabetes were observed. In age- and sex-adjusted analyses, hazard ratio (HR) and 95% confidence intervals (CIs) for diabetes by maternal and paternal diabetes were 2.66 (2.26-3.14) and 2.40 (1.91-3.02), respectively. Maternal transmission of risk of diabetes was explained by diet (9.4%), lifestyle factors including smoking, alcohol consumption, physical activity and educational level (7.8%) and by adiposity, i.e. body mass index and waist and hip circumference (23.5%). For paternal transmission, the corresponding values were 2.9%, 0.0% and 9.6%. After adjustment for diet, lifestyle factors and adiposity, the HRs for maternal (2.20; 95% CI, 1.87-2.60) and paternal (2.23; 95% CI, 1.77-2.80) transmission of diabetes were comparable. CONCLUSIONS: Both maternal and paternal diabetes are associated with increased risk of type 2 diabetes, independently of diet, lifestyle and adiposity. The slightly higher risk conferred by maternal compared to paternal diabetes was explained by a larger contribution of diet, lifestyle factors and adiposity.


Assuntos
Adiposidade , Diabetes Mellitus Tipo 2/epidemiologia , Dieta , Predisposição Genética para Doença , Estilo de Vida , Adulto , Consumo de Bebidas Alcoólicas , Análise de Variância , Índice de Massa Corporal , Diabetes Mellitus Tipo 2/genética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Biológicos , Linhagem , Estudos Prospectivos , Fatores de Risco , Fumar , Inquéritos e Questionários
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