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1.
Medicina (Kaunas) ; 56(10)2020 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-33023136

RESUMO

Background and Objectives: During osteopetrosis course, impaired bone remodeling induces skeletal osteosclerosis and abnormally dense bones, which, however, are brittle and susceptible to low-energy fractures. In this study, radiological evaluation and densitometric measurements of several bones of the skeleton in one of the oldest patients in the world suffering from osteopetrosis was presented. Materials and Methods: Volumetric bone mineral density measurements of the examined bones in an 80-year-old man were performed using two different quantitative computed tomography techniques. Results: The obtained results show higher values of the volumetric bone mineral density of the trabecular bone in lumbar spine than in the cortical bone compartment. T-score and Z-score in this patient reached values of 27-28 and 31-32, respectively. Conclusions: The obtained densitometric data may serve for further diagnostic purposes of osteopetrosis. As documented, the severity of the osteosclerotic changes of bones were higher in this patient than in most other described cases. Moreover, radiological signs diagnosed in this patient were characteristic for all types of osteopetrosis making this case very uncommon.


Assuntos
Osteopetrose , Absorciometria de Fóton , Idoso de 80 Anos ou mais , Densidade Óssea , Humanos , Vértebras Lombares/diagnóstico por imagem , Masculino , Osteopetrose/diagnóstico por imagem , Radiografia , Tomografia Computadorizada por Raios X
2.
Cells Tissues Organs ; 206(4-5): 196-207, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-31121585

RESUMO

This study was performed to determine morphological, densitometric, mechanical, and elemental characteristics of maxillary teeth in 5-month-old Polish Merino sheep. The total tooth volume (Tvol) was determined using quantitative computed tomography. Micro-computed tomography was used to determine the total enamel volume (Evol), volumetric enamel mineral density, total dentine volume (Dvol), volumetric dentine mineral density, and total tooth enamel and dentine volume (EDvol). Compression testing was used to determine the ultimate force of teeth. Microhardness of enamel and dentine was evaluated using Vicker's test. Elemental analysis of enamel and dentine was performed using a scanning electron microscopy technique. Tooth weight, length, Tvol, Evol, Dvol, and EDvol increased consequently from the lowest values for p2, then for p3 and p4, to the highest values obtained for M1 (all p < 0.05). Ultimate force reached the lowest value for p2 compared with the other teeth (p < 0.05). The comparison of left and right teeth did not reveal significant differences for all the evaluated parameters (p > 0.05). Volumetric mineral density, calcium and phosphorus content, and microhardness were higher in enamel than in dentine, while the opposite results were obtained for magnesium and oxygen (all p < 0.05). Significantly higher enamel microhardness was found in mandibular i1 compared with maxillary and mandibular premolars (p < 0.05). The elaborated experimental model of the determination of maxillary deciduous teeth traits may serve for further studies on the effects of physiological, pathological, environmental, nutritional, pharmacological, and toxicological factors affecting tooth development and mineralized tissue properties.

3.
J Vet Dent ; 35(2): 121-130, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29865985

RESUMO

Interrelationships between morphological, densitometric, and mechanical properties of deciduous mandibular teeth (incisors, canine, second premolar) were investigated. To perform morphometric, densitometric, and mechanical analyses, teeth were obtained from 5-month-old sheep. Measurements of mean volumetric tooth mineral density and total tooth volume were performed using quantitative computed tomography. Microcomputed tomography was used to measure total enamel volume, volumetric enamel mineral density, total dentin volume, and volumetric dentin mineral density. Maximum elastic strength and ultimate force of teeth were determined using 3-point bending and compression tests. Pearson correlation coefficients were determined between all investigated variables. Mutual dependence was observed between morphological and mechanical properties of the investigated teeth. The highest number of positive correlations of the investigated parameters was stated in first incisor indicating its superior predictive value of tooth quality and masticatory organ function in sheep. Positive correlations of the volumetric dentin mineral density in second premolar with final body weight may indicate predictive value of this parameter in relation with growth rate in sheep. Evaluation of deciduous tooth properties may prove helpful for breeding selection and further reproduction of sheep possessing favorable traits of teeth and better masticatory organ function, leading to improved performance and economic efficiency of the flock.


Assuntos
Ovinos/anatomia & histologia , Ovinos/fisiologia , Dente Decíduo/anatomia & histologia , Dente Decíduo/fisiologia , Animais , Dente Pré-Molar/anatomia & histologia , Dente Pré-Molar/fisiologia , Fenômenos Biomecânicos , Dente Canino/anatomia & histologia , Dente Canino/fisiologia , Densitometria/veterinária , Incisivo/anatomia & histologia , Incisivo/fisiologia , Mandíbula , Polônia , Microtomografia por Raio-X/veterinária
4.
BMC Vet Res ; 13(1): 12, 2017 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-28056959

RESUMO

BACKGROUND: Among bones building the axial and appendicular skeleton, the mandible is characterized by unique morphological and functional traits. The aim of the study was to evaluate morphological, densitometric and mechanical properties of mandible in 5-month-old Polish Merino sheep. Using quantitative computed tomography, volumetric bone mineral density (vBMD) and calcium hydroxyapatite density of the cortical bone (CbCa-HA), mean vBMD (MvBMD) and total bone volume were determined. Using computed tomography cross-sectional scans of the mandible, cross-sectional area, second moment of inertia, mean relative wall thickness and cortical index were determined. Three-point bending test was applied to determine mechanical properties. Serum concentration of insulin-like growth factor I (IGF-I) and bone-specific alkaline phosphatase (BAP) was also measured. RESULTS: All the investigated morphometric, densitometric and mechanical parameters of the right and left mandibular halves were not significantly different (P > 0.05). There was no correlation of final body weight, MvBMD, CbCa-HA, BAP and IGF-I with all the analyzed parameters of mandible (P > 0.05). However, positive correlations between the other investigated morphometric, densitometric and mechanical parameter of mandible were found (P < 0.05). CONCLUSIONS: Relationships between morphological, densitometric and mechanical parameters of the mandible indicate that the elaborated experimental model may serve for further studies on metabolic responses of skeletal system to physiological, nutritional, pharmacological, toxicological and environmental factors.


Assuntos
Densidade Óssea/fisiologia , Mandíbula/anatomia & histologia , Ovinos/anatomia & histologia , Envelhecimento , Animais , Fenômenos Biomecânicos , Masculino , Mandíbula/fisiologia , Ovinos/fisiologia
5.
J Neural Transm (Vienna) ; 123(4): 455-61, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26566902

RESUMO

Characterization of autoantibodies specific for some disease-related proteins, would allow to better assess their role as diagnostic and prognostic markers. In the light of increasing evidence for both humoral and cellular adaptive immune responses in the pathophysiology of Alzheimer's disease (AD), and data on the increased small heat-shock proteins (sHSP) expression in this disease, it seemed justified to assess humoral response against sHSP in AD patients. The aim of the study was to check whether AD has the ability to elicit immune response against small HSP, which could also serve as disease biomarkers. IgG and IgM autoantibodies against alpha B-crystallin and anti-HSP 60 IgG autoantibodies were assessed in 59 AD patients and 59 healthy subjects. Both IgM and IgG autoantibodies against alpha B-crystallin in AD patients were significantly higher compared to healthy controls (p < 0.05). No statistically significant differences were found between AD patients and healthy subjects were found in anti-HSP60 IgG autoantibody titers (p = 0.29). Anti-HSP60 antibodies present in AD patients may indeed belong to natural human immune repertoire, and chronic neurodegenerative process does not have significant inducing effect on the systemic immunoreactivity against HSP60. Increased titers of IgM and IgG autoantibodies against alpha B-crystallin in AD patients may reflect activation of humoral immune response in the course of this chronic disease, probably secondary to its increased expression. Further prospective studies, on larger group of AD patients and measuring a change in antibodies titers with disease progression are necessary to assess the exact role of these antibodies in AD.


Assuntos
Doença de Alzheimer/imunologia , Autoanticorpos/imunologia , Chaperonina 60/imunologia , Proteínas de Choque Térmico Pequenas/imunologia , Proteínas Mitocondriais/imunologia , Cadeia B de alfa-Cristalina/imunologia , Idoso , Idoso de 80 Anos ou mais , Autoanticorpos/sangue , Autoantígenos/imunologia , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Imunidade Humoral/imunologia , Imunoglobulina G/sangue , Imunoglobulina M/sangue , Masculino , Pessoa de Meia-Idade
6.
BMC Vet Res ; 11: 69, 2015 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-25880225

RESUMO

BACKGROUND: The enzyme phytase is able to initiate the release of phosphates from phytic acid, making it available for absorption within gastrointestinal tract and following utilization. The aim of the study was to determine effects of Escherichia coli phytase administration on morphological, densitometric and mechanical properties of femur in 16-week-old turkeys. One-day-old BUT Big-6 males were assigned to six weight-matched groups. Turkeys receiving diet with standard phosphorus (P) and calcium (Ca) content belonged to the positive control group (Group I). Negative control group (Group II) consisted of birds fed diet with lowered P and Ca content. Turkeys belonging to the remaining groups have received the same diet as group II but enriched with graded levels of Escherichia coli phytase: 125 (Group III), 250 (Group IV), 500 (Group V) and 1000 (Group VI) FTU/kg. At the age of 112 days of life, the final body weights were determined and the turkeys were sacrificed to obtain right femur for analyses. Geometric and densitometric properties of femur were determined using quantitative computed tomography (QCT) technique, while mechanical evaluation was performed in three-point bending test. RESULTS: Phytase administration increased cross-sectional area, second moment of inertia, mean relative wall thickness, cortical bone mineral density and maximum elastic strength decreasing cortical bone area of femur (P < 0.05). Reduced dietary Ca and P content decreased final body weight of turkeys by 6.5% (P = 0.006). The most advantageous effects of Escherichia coli phytase administration on geometric, densitometric and mechanical properties of femur were observed in turkeys receiving 125 and 250 FTU/kg of the diet. Phytase administration at the dosages of 500 and 1000 FTU/kg of the diet improved the final body weight in turkeys. CONCLUSIONS: The results obtained in this study indicate a possible practical application of Escherichia coli phytase in turkey feeding to improve skeletal system properties and function.


Assuntos
6-Fitase/farmacologia , Densidade Óssea/efeitos dos fármacos , Suplementos Nutricionais , Escherichia coli/enzimologia , Fêmur/fisiologia , Perus , 6-Fitase/metabolismo , Ração Animal/análise , Fenômenos Fisiológicos da Nutrição Animal , Animais , Dieta/veterinária , Relação Dose-Resposta a Droga , Masculino , Fósforo/metabolismo
7.
BMC Vet Res ; 10: 45, 2014 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-24548814

RESUMO

BACKGROUND: Caries, enamel hypoplasia, molar incisor hipomineralization, amylogenesis imperfecta, dentine dysplasia, hypophosphatasia and other dental disorders lead to tooth mineralization disturbances and structural abnormalities, decreasing masticatory organ functions. Dental disorders in sheep can lead to premature slaughter before they have attained final stage of their reproductive life and induce economic loss due to high flock replacement costs. Growth rate, health status and meat quality of sheep depends on tooth properties and quality determining in large extent efficiency of the masticatory apparatus and initial food break up. Considering lack of basic anatomical and physiological data on teeth properties in sheep, the aim of the study was to evaluate morphometric, densitometric and mechanical traits of deciduous mandibular incisor, canine and the second premolar obtained at the slaughter age of 5 months of life. RESULTS: The obtained results have shown the highest values of weight, total tooth volume, enamel volume and dentine volume in second premolar. Morphometric and mechanical parameters of incisors reached the highest values in first incisor and decreased gradually in second and third incisor, and in canine. Densitometric measurements have not revealed significant differences of the volumetric tooth mineral density in hard dental tissues between the investigated teeth. CONCLUSIONS: In conclusion, proposed methodological approach is noninvasive since the deciduous teeth undergo physiological replacement with permanent teeth. Deciduous teeth can be easy collected for analyses from large animal population and may reflect mineral status and metabolism resulting from postnatal growth and development of the whole flock. In individual cases, evaluation of properties of deciduous teeth may serve for breeding selection and further reproduction of sheep possessing favorable traits of teeth and better masticatory system functions.


Assuntos
Dente Pré-Molar/fisiologia , Dente Canino/fisiologia , Incisivo/fisiologia , Ovinos/fisiologia , Dente Decíduo/fisiologia , Animais , Fenômenos Biomecânicos , Masculino
8.
Lancet Infect Dis ; 24(3): e196-e205, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37783223

RESUMO

The Grand Round concerns a 24-year-old man from Zimbabwe who was studying and living in Poland. The patient had been complaining of abdominal pain, fatigue, alternating diarrhoea and constipation, and presence of blood in his stool for 3 years. The patient had the following diagnostic tests: colonoscopy, CT scan, histopathology, and parasitological and molecular tests. Results of the examinations showed that the cause of the patient's complaints was chronic intestinal schistosomiasis due to the co-infection with Schistosoma intercalatum and Schistosoma mansoni. The patient had two cycles of praziquantel therapy (Biltricide) and responded well to the treatment. In the Grand Round, we describe full diagnostics as well as clinical and therapeutic management in the patient with S intercalatum and S mansoni co-infection. This case allows us to draw attention to cases of forgotten chronic tropical diseases (including rare ones) in patients from regions with a high endemic index staying in non-endemic regions of the world for a long time. Co-infection with S intercalatum and S mansoni should be considered as a very rare clinical case.


Assuntos
Coinfecção , Esquistossomose mansoni , Esquistossomose , Masculino , Animais , Humanos , Adulto Jovem , Adulto , Schistosoma mansoni , Esquistossomose mansoni/complicações , Esquistossomose mansoni/diagnóstico , Esquistossomose mansoni/tratamento farmacológico , Esquistossomose/complicações , Esquistossomose/diagnóstico , Esquistossomose/tratamento farmacológico , Coinfecção/tratamento farmacológico , Praziquantel/uso terapêutico
9.
Surg Radiol Anat ; 34(2): 171-8, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22057798

RESUMO

The aim of the study was to present the classification of anatomical variations of the stomach, based on the radiological and historical data. In years 2006-2010, 2,034 examinations of the upper digestive tract were performed. Normal stomach anatomy or different variations of the organ shape and/or topography without any organic radiologically detectable gastric lesions were revealed in 568 and 821 cases, respectively. Five primary groups were established: abnormal position along longitudinal (I) and horizontal axis (II), as well as abnormal shape (III) and stomach connections (IV) or mixed forms (V). The first group contains abnormalities most commonly observed among examined patients such as stomach rotation and translocation to the chest cavity, including sliding, paraesophageal, mixed-form and upside-down hiatal diaphragmatic hernias, as well as short esophagus, and the other diaphragmatic hernias, that were not found in the evaluated population. The second group includes the stomach cascade. The third and fourth groups comprise developmental variations and organ malformations that were not observed in evaluated patients. The last group (V) encloses mixed forms that connect two or more previous variations.


Assuntos
Anormalidades do Sistema Digestório/classificação , Estômago/anormalidades , Estômago/diagnóstico por imagem , Adulto , Estudos de Coortes , Meios de Contraste , Anormalidades do Sistema Digestório/diagnóstico por imagem , Feminino , Hérnia Hiatal/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia , Estudos Retrospectivos , Estômago/anatomia & histologia
10.
Ann Agric Environ Med ; 29(1): 115-119, 2022 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-35352914

RESUMO

INTRODUCTION AND OBJECTIVE: CT examination is an important diagnostic tool in assessment of the severity of the infection and course of the disease. The aim of the study was to evaluate the degree and frequency of involvement of individual lung lobes and the population Lobe Involvement Coefficient (pLIC) value in the investigated population. MATERIAL AND METHODS: The analyzed material comprised 124 patients aged 18-92 years. CT examinations were performed using a 16- and 32-row CT LightSpeed apparatus. The spatial distribution of typical Covid -19 pathological changes was analyzed, divided into five lung lobes. The degree of the severity of lobe involvement was assessed using counters and percentages, as well as the population Lobe Involvement Coefficient (pLIC). Statistical analysis of data was performed with the use of Statistica 10.0 software. Values were measured on an oridinal scale. Anova Friedman's test was used to compare lobes. RESULTS: Statistically significant differences in the involvement between most of the individual lobes were shown. There was no statistically significant difference in the degree of lobe involvement between the left and right upper lobes, nor in the left and right lower lobes. The highest pILC was demonstrated for the lower lobe and the lowest value was obtained for the middle lobe. CONCLUSIONS: The lower lobes were affected most frequently and most severely, with no statistical difference between the right and left sides. The middle lobe was affected relatively least frequently and lightly. The introduced pLIC index allows quantitative assessment of individual lobes involvement in relation to the entire studied population.


Assuntos
COVID-19 , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19/diagnóstico por imagem , Humanos , Pulmão/diagnóstico por imagem , Pulmão/patologia , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X , Adulto Jovem
11.
Dermatol Ther ; 24(6): 587-90, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22515675

RESUMO

Psoriasis is currently considered a multifactorial disease, which can coexist with many somatic and psychological disorders. We present the case of a 50-year-old woman referred to our department due to erythroderma with concomitant peculiar violaceous, polycyclic lesions most likely induced by medications. Past medical history revealed numerous systemic disorders, including metabolic syndrome, hypertension, cardiac insufficiency, obesity, and depression. Additional examinations and consultations demonstrated dyslipidemia, xanthelasma, incomplete block of the right branch of His bundle, thyreocardiac syndrome, benign adrenal tumor, and delusions. Recently, psoriasis has been intensively studied. We present the case in which erythroderma was most likely triggered by acitretin combined with ceftriaxone. Treatment of many diseases and psychiatric disturbances coexisting with psoriasis is extremely difficult and requires cooperation of various specialists.


Assuntos
Acitretina/efeitos adversos , Antibacterianos/efeitos adversos , Ceftriaxona/efeitos adversos , Toxidermias/etiologia , Eritema Multiforme/etiologia , Ceratolíticos/efeitos adversos , Psoríase/tratamento farmacológico , Comorbidade , Dermatite Esfoliativa/tratamento farmacológico , Dermatite Esfoliativa/etiologia , Dermatite Esfoliativa/patologia , Toxidermias/tratamento farmacológico , Toxidermias/patologia , Eritema Multiforme/tratamento farmacológico , Eritema Multiforme/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Psoríase/complicações , Fatores de Risco
12.
J Clin Med ; 10(5)2021 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-33799933

RESUMO

In April 2017 midostaurin was approved by the US Food and Drug Administration for the treatment of patients with aggressive systemic mastocytosis (ASM). So far, very limited real world data on its efficacy is available. Thirteen patients aged from 48 to 79 years, who received midostaurin in the early access program, were included in the study. Midostaurin was used both in first (n = 5) and subsequent lines of treatment (n = 8). The median duration of exposure was 9 months. Most patients (77%, n = 10) had a clinical improvement already as soon as the second month of therapy. Objective response was noted in 4 (50%) of eight evaluated patients. Among responders, we observed a decrease in serum tryptase level (median 74.14%) and bone marrow infiltration by mast cells (median 50%) in the sixth month of treatment. In one case, in the 10th month of treatment, allogenic stem cell transplantation was performed, achieving complete remission. Five patients died, three due to progression of disease, one in the course of secondary acute myeloid leukemia and one due to reasons not related to mastocytosis. Treatment is ongoing in seven patients. We found that midostaurin therapy is beneficial to patients with ASM.

13.
Pol Merkur Lekarski ; 29(172): 255-8, 2010 Oct.
Artigo em Polonês | MEDLINE | ID: mdl-21207643

RESUMO

The Morgagni hernia is a rare condition caused by the disturbances in the embryonal development of the diaphragm. The high pressure in the abdominal cavity during the persistent constipations or in pregnant women seems to be important predisposing factor apart from advanced age, obesity, vertebral column deformities and the connective tissue diseases. That is why the Morgagni hernia is very rarely diagnosed in children but usually in women in their fifties. We present the case report of our patent who was admitted to the Department of Internal Diseases for the diagnostics of lasting for 3-4 months weakness, chest pains and the episodes of palpitations. During her stay in our Department the routine chest X-ray examination was performed, that showed the unexpected result. The diagnosis of Morgagni hernia was afterwards confirmed in the computed tomography. Even though the risk of the acute abdominal conditions in the dislocated parts of gastro-intestinal tract our patient did not agree to proposed operation.


Assuntos
Dor no Peito/etiologia , Idoso , Feminino , Hérnia Diafragmática/complicações , Hérnia Diafragmática/diagnóstico por imagem , Hérnias Diafragmáticas Congênitas , Humanos , Tomografia Computadorizada por Raios X
14.
Ann Agric Environ Med ; 27(1): 80-85, 2020 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-32208584

RESUMO

INTRODUCTION: Liver cirrhosis is a chronic disease in which progressive fibrosis is noted. This process leads to changed architectonics of the liver parenchyma and the appearance of regenerative nodules, all of which are caused by pathological activation of the hepatic stellate cells. This process is enhanced on a molecular level by many cytokines, with platelet-derived growth factors (PDGFs) playing the key role. OBJECTIVE: The aim of the study was to assess serum concentrations of PDGFs active biodymers (PDGF-AA, PDGF-BB and PDGF-AB) in patients with alcoholic liver cirrhosis, and to correlate them with the stage of disease. MATERIAL AND METHODS: 64 patients with alcoholic cirrhosis and a control group of 16 healthy individuals were analysed. Liver cirrhosis was determined based on clinical image, history of the patients' alcohol consumption, laboratory findings and abdominal ultrasonography. The serum PDGF-AA, PDGF-BB and PDGF-AB concentrations were determined using ELISA kits. RESULTS: Serum concentration of PDGF-AA and PDGF-BB homodimers increases in patients with alcoholic liver cirrhosis (p=0.034 and p<0.0001, respectively), unlike the serum concentration of PDGF-AB heterodimer (p>0.05). When the stage of the disease increases, the concentrations of PDGF-AA and PGFD-BB in blood also oncrease. Furthermore, the serum level of both PDGF-AA and PDGF-BB correlates significantly with the severity of alcoholic liver cirrhosis (measured by Pugh-Child's scale), the correlation being stronger in the case of PDGF-BB levels than PDGF-AA (R=0.28; p=0.027 and R=0.26; p=0.038, respectively). CONCLUSIONS: The plasma levels of PDGF-AA and -BB may be indicators of alcohol-induced liver fibrosis process, and might be considered as future possible treatment targets, with PDGF-BB levels being an even better indicator than PDGF-AA levels.


Assuntos
Becaplermina/sangue , Cirrose Hepática Alcoólica/sangue , Cirrose Hepática Alcoólica/diagnóstico , Fator de Crescimento Derivado de Plaquetas/metabolismo , Adulto , Idoso , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fator de Crescimento Derivado de Plaquetas/análise , Índice de Gravidade de Doença
15.
Poult Sci ; 98(12): 7063-7075, 2019 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-31399733

RESUMO

We studied the changes in morphological, geometric, densitometric, and mechanical parameters of the femur and tibia during 56 D of rearing chickens with different growth rates. Ten femur and tibia were collected from fast-growing chickens (FG) and 2 types of medium-growing chickens (MGH and MGGP) immediately after hatching (0 D) and on 7, 14, 21, 35, 42, 49, and 56 D of life. The bone parameters of chickens across all genetic groups were found to be similar on 0 D, with exceptions of lower percentage contribution of bone weight (BW) in FG chickens (P < 0.05), lower total bone volume in MGGP chickens (P < 0.05), and lower maximum elastic strength in MGH chickens (P < 0.05). The bones developed in FG chickens were longer and wider; however, an increase in bone mineral density (BMD) between 42 and 49 D was not observed. The BMD value in FG chickens on 56 D was comparable to that in MGH chickens (P = 0.089) and significantly lower than that in MGGP chickens (P = 0.021). Mean relative wall thickness, despite longer and thicker bones in FG chickens, was comparable and often lower than that of MGH and MGGP chickens. In conclusion, the results showed that medium-growing chickens could be reared for up to 56 D without the risk of any growth impairment due to problems associated with deterioration of pelvic limb bone quality.


Assuntos
Desenvolvimento Ósseo/genética , Galinhas/crescimento & desenvolvimento , Membro Posterior/crescimento & desenvolvimento , Animais , Galinhas/genética , Feminino , Genótipo , Masculino , Fatores de Tempo
16.
Nutrition ; 24(7-8): 753-60, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18490141

RESUMO

OBJECTIVE: The aim of the study was to test the hypothesis that oral administration with 3-hydroxy-3-methylbutyrate (HMB) positively influences bone metabolism and diminishes fundectomy-induced osteopenia of the axial skeleton in pigs. The pig model was chosen because of its recognized physiologic and anatomic similarities of the gastrointestinal tract and skeletal system to those of humans. METHODS: Eighteen male pigs were divided into three weight-matched groups at 40 d of life. Animals from the first and second groups were subjected to experimental fundectomy and the third group was sham operated. Starting the day after the fundectomy, the first and second groups received placebo and HMB, respectively. Animals were sacrificed at the age of 8 mo to obtain L(5) and L(6) vertebrae for analysis. The effects of HMB administration on plasma amino acids concentrations, bone mineral density, morphology, and mechanical properties of the lumbar vertebrae were determined. RESULTS: The HMB treatment increased the weight of the vertebrae, bone mineral density, bone mineral content, total bone volume, trabecular bone mineral density, mean volumetric bone mineral density, calcium hydroxyapatite density in the trabecular and cortical bones, and plasma amino acid concentrations in the fundectomized pigs (P < 0.05). Mechanical strength of the spine, expressed by the values of ultimate force, Young's modulus, ultimate stress, stiffness, and work to the ultimate force point was increased in HMB-treated pigs (P < 0.05). CONCLUSION: HMB administration to fundectomized pigs improved plasma amino acids concentrations and diminished development of fundectomy-induced osteopenia of the axial skeleton.


Assuntos
Densidade Óssea/efeitos dos fármacos , Doenças Ósseas Metabólicas/prevenção & controle , Fundo Gástrico/cirurgia , Valeratos/farmacologia , Aminoácidos/sangue , Animais , Doenças Ósseas Metabólicas/etiologia , Osso e Ossos/efeitos dos fármacos , Osso e Ossos/metabolismo , Vértebras Lombares , Masculino , Complicações Pós-Operatórias/prevenção & controle , Distribuição Aleatória , Suínos
17.
World J Clin Cases ; 6(12): 538-541, 2018 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-30397610

RESUMO

Colovesical fistulas (CVFs) are rare complications of very advanced cancers of the abdominal or pelvic cavity and often cause diagnostic troubles. CVFs are found more often in males, whereas females usually suffer from rectovaginal or vesicovaginal fistulas. This article presents a case of a female patient who was admitted to the hospital because of acute diarrhea, presumably of infectious origin, and with only subtle abnormalities in blood tests and urinalysis. Owing to the ineffectiveness of the performed treatment and progressive intensification of symptoms, diagnostics were extended to include a computed tomography scan, sigmoidoscopy and cystography. The imaging results revealed a large heterogeneous conglomerate of solid and fluid structures in the pelvis, which involved reproductive organs, the bladder and sigmoid colon. The excrement leaking from the digestive tract was urine, and CVF was the first manifestation of colon cancer. Shortly after the final diagnosis, the patient deteriorated and eventually died after an urgent colostomy was performed because of a bowel obstruction.

18.
Biol Trace Elem Res ; 185(1): 98-105, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29264823

RESUMO

The optimal content of macro-, micro-, and trace elements in tissues ensures proper systemic growth and development and optimal health status in animals and humans. However, very little is known on the elemental content in the plasma compartment in Silver fox. The aim of this study was to determine the content of selected elements in serum obtained from 8-month-old female (N = 8) and male (N = 7) silver foxes. Moreover, relationships of the evaluated elements with the morphological, densitometric, and mechanical parameters of the mandible were determined. Serum content of 12 different elements was measured using inductively coupled plasma-atomic emission spectrometry. The morphometric and densitometric properties of the mandible were determined using quantitative computed tomography method, while mechanical endurance was tested using a three-point bending test. Serum concentration of calcium was significantly higher by 20% in male foxes (P = 0.01), while manganese concentration was significantly lower in males by over 17% (P = 0.03). Positive correlations of serum concentration of calcium, phosphorus, and magnesium with the morphological traits of the mandible such as weight, length, and bone volume were stated (P < 0.05). In the group of elements playing regulatory functions, the positive relationships between serum concentrations of selenium, chromium, manganese, copper, and cobalt were found (P < 0.05). The elaborated experimental model may serve for further studies on foxes, especially focused on nutritional factors affecting elemental homeostasis, whole-body metabolism, and systemic growth and development. Daily diet formulation and precise delivery for farm foxes, together with relatively large animal population maintained at the same environmental conditions, regularly subjected to slaughter procedure, enable economical experimentation with various dietary and pharmacological manipulations.


Assuntos
Mandíbula/fisiologia , Oligoelementos/sangue , Absorciometria de Fóton , Animais , Cromo/sangue , Cobalto/sangue , Cobre/sangue , Feminino , Raposas , Magnésio/sangue , Masculino , Fósforo/sangue , Selênio/sangue
20.
Bone ; 40(6): 1615-22, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17433802

RESUMO

Alteration in fetal growth and development in response to prenatal environmental conditions such as nutrition has long-term or permanent effects during postnatal life. The aim of this study was to investigate effects of beta-hydroxy-beta-methylbutyrate (HMB) treatment of sows during the last 2 weeks of pregnancy on programming of skeletal development in the offspring. The study was performed on 141 pigs born by 12 sows of Polish Landrace breed. Two weeks before delivery, pregnant sows were divided into two groups. The first group consisted of control sows (N=6) that were treated with placebo. Sows that were orally treated with beta-hydroxy-beta-methylbutyrate (N=6) at the dosage of 0.05 g/kg of body weight per day belonged to the second group. Newborn piglets were weighed and subjected to blood collection for determination of serum levels of growth hormone (GH), insulin-like growth factor-1 (IGF-1), insulin, leptin, glucose and bone alkaline phosphatase (BAP) activity and lipid profile. At the age of 6 months, the piglets were slaughtered, their femur was isolated for analysis and assessment of lean meat content of carcasses was performed. The effects of maternal administration with HMB on skeletal properties in the offspring were evaluated in relation to bone mineral density and geometrical and mechanical properties. Maternal treatment with HMB increased serum levels of GH, IGF-1 and BAP activity in the newborns by 38.0%, 20.0% and 26.0%, respectively (P<0.01). HMB administration significantly increased volumetric bone mineral density of the trabecular and cortical bone of femur in the offspring at the age of 6 months (P<0.001). The weight of femur and geometrical parameters such as cross-sectional area, second moment of inertia, mean relative wall thickness and cortical index were significantly increased after HMB treatment (P<0.05). HMB induced higher values of maximum elastic strength and ultimate strength of femur (P<0.01). Furthermore, lean meat content of carcass was significantly increased in the females born by HMB-treated sows (P<0.05). The obtained results showed that maternal administration with HMB has positive long-term effects on bone tissue and improves volumetric bone mineral density, geometrical and mechanical properties of femur in the offspring. These effects were connected with increased level of GH and IGF-1 in the newborns indicating involvement of improved somatotrophic axis function in prenatal programming of skeletal development in pigs.


Assuntos
Densidade Óssea/efeitos dos fármacos , Fêmur/efeitos dos fármacos , Desenvolvimento Fetal/efeitos dos fármacos , Sus scrofa/fisiologia , Valeratos/farmacologia , Fosfatase Alcalina/análise , Animais , Animais Recém-Nascidos , Fenômenos Biomecânicos , Glicemia/análise , Composição Corporal/efeitos dos fármacos , Osso e Ossos/metabolismo , Elasticidade/efeitos dos fármacos , Feminino , Hormônio do Crescimento/sangue , Insulina/sangue , Fator de Crescimento Insulin-Like I/análise , Leptina/sangue , Gravidez , Sus scrofa/metabolismo
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