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1.
Heliyon ; 9(9): e19632, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37809975

RESUMEN

Background: Regarding changes in muscle mass, differences due to types of exercise and/or nutritional interventions, and associations with nutrient balances are still unclear. Methods: To estimate changes in muscle mass during a body weight loss program using either a diet or exercise regimen, we investigated levels of muscle mass-related indices, and body contents of nitrogen, sodium, and potassium as measured by the balance method. Six healthy young adult male volunteers participated in two 10-day crossover experiments (20 days total). The first 5 days comprised an adjustment period (energy intake, 2656 ± 367 kcal/day (mean ± standard deviation)). During the second 5-day period, the participants either reduced their energy intake to 1770 ± 244 kcal/day (diet regimen) or exercised on a bicycle ergometer to expend 886 ± 122 kcal/day (exercise regimen). Results: The nitrogen, sodium, and potassium balances were significantly more positive during the exercise regimen than during the diet regimen. The urinary excretion levels of creatinine, 3-methylhistidine (3-MH), aldosterone, and catecholamines, and the 3-MH/creatinine ratio were significantly increased only during the exercise regimen. Conclusions: The exercise regimen suppresses the decrease in muscle mass-related indices during body weight loss compared to the diet regimen with a relatively positive state of whole-body protein, sodium, and potassium balances, accompanied by an increase in sympathetic/adrenal cortical functions.

2.
Microsurgery ; 43(3): 222-228, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36367228

RESUMEN

BACKGROUND: Although aesthetic reconstruction of an amputated distal finger can be achieved through partial toe transfer, this approach often damages the weight-bearing region of the toe from which the flap is harvested. The purpose of this report is to introduce the minimum invasive surgery technique to reconstruct the distal finger aesthetically without damaging the weight-bearing region of the toe. PATIENTS AND METHODS: Thirty-one amputated fingertips in 30 patients aged 18 to 68 years were treated using this operative technique. Operations were performed between January 2010 and December 2020. All patients were missing the distal finger beyond the PIP joint, and the amputation stump had been covered with healthy skin. A distally based finger flap was elevated at the recipient site, and a slender partial toe flap, including the nail, was harvested from the great toe. These flaps were combined to form the distal finger. In all cases, the weight-bearing region of the toe remained intact. The donor site wound was first closed with artificial dermis, and skin grafting was performed 3 weeks after the surgery. A few patients did not require skin grafting because their wounds epithelized spontaneously. RESULTS: In most patients, the transplanted flap remained healthy and the distal finger was aesthetically restored. Two patients aged over 60 years who were smokers developed necrosis of the transplanted partial toe flap. In all patients, the weight-bearing region of the great toe was intact, and they had no trouble walking during the three-year follow-up period after surgery. CONCLUSION: Our technique, which combines elevation of a distally-based finger flap and transplantation of a partial toe flap, was able to minimize the skin defect area in the great toe. This new distal finger reconstruction technique is minimally invasive and can be used to prevent secondary donor site issues.


Asunto(s)
Hallux , Dedos del Pie , Humanos , Persona de Mediana Edad , Anciano , Dedos del Pie/trasplante , Colgajos Quirúrgicos , Dedos , Trasplante de Piel
3.
J Complement Integr Med ; 18(3): 617-620, 2021 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-33793143

RESUMEN

OBJECTIVES: Spinal glycinergic mechanisms inhibit the micturition reflex, and administration of glycine inhibits bladder activity in rats. Therefore, we examined whether dietary glycine would improve storage symptoms in urological outpatients. METHODS: We enrolled 20 participants (16 men and four women) with an overactive bladder symptom score (OABSS) ≥ 3. All participants took 3 g of glucose (placebo) twice a day for the first four weeks, then 3 g of glycine twice a day for the next four weeks. We evaluated blood pressure, international prostate symptom score (IPSS), nocturia quality of life (N-QOL) score, OABSS, frequency of urination, sleep latency, time to first nighttime void, bladder pain, global self-assessment (GSA) evaluated urinary symptom improvement, and adverse events. RESULTS: Glucose administered as a placebo improved urinary frequency, urine force on the IPSS, and five of the 13 items on the N-QOL. However, compared to the results before and after glucose administration, glycine treatment decreased the number of nocturnal voids, urgency, and total score for urine storage items on the IPSS. It also reduced blood pressure and improved IPSS-QOL. For the OABSS, improvements with glycine were noted in the number of nocturnal urinations, urinary urgency, urge incontinence, and total score. For the N-QOL, eight of 13 items, and the total score, improved. The actual number of nighttime urinations, sleep latency, latency to first nighttime urination, bladder pain, and GSA also improved. There were no adverse events. CONCLUSIONS: Glycine might improve urine storage symptoms, cardiovascular function, pain, and sleep.


Asunto(s)
Vejiga Urinaria Hiperactiva , Urología , Animales , Glicina , Humanos , Masculino , Pacientes Ambulatorios , Calidad de Vida , Ratas , Resultado del Tratamiento , Vejiga Urinaria Hiperactiva/tratamiento farmacológico
5.
J Stroke Cerebrovasc Dis ; 29(12): 105348, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33070111

RESUMEN

Herein, we report abdominal aortic thrombosis as a rare cause of acute spinal cord infarction. A 78-year-old man with multiple vascular risk factors developed acute paraplegia with sensory and urinary disturbances and signs of ischemia in both lower limbs. The post-mortem study done 3 days after the onset of symptoms revealed a large coagulum in the abdominal aorta, distal to the renal arteries and extending to bilateral common iliac arteries; in addition, marked atherosclerosis was present in most large blood vessels. Premature incomplete necrotic foci were seen in the ventral gray matter of the spinal cord from T6 through S5; the surrounding white matter and dorsal gray matter were spared. Considering our autopsy case, spinal cord gray matter may be more vulnerable to ischemia than the white matter.


Asunto(s)
Aorta Abdominal/patología , Enfermedades de la Aorta/patología , Sustancia Gris/irrigación sanguínea , Infarto/patología , Isquemia de la Médula Espinal/patología , Médula Espinal/irrigación sanguínea , Trombosis/patología , Anciano , Aorta Abdominal/diagnóstico por imagen , Enfermedades de la Aorta/complicaciones , Enfermedades de la Aorta/diagnóstico por imagen , Autopsia , Causas de Muerte , Resultado Fatal , Humanos , Infarto/etiología , Masculino , Isquemia de la Médula Espinal/etiología , Trombosis/complicaciones , Trombosis/diagnóstico por imagen
6.
Intern Med ; 57(23): 3451-3458, 2018 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-29984771

RESUMEN

Progressive encephalomyelitis with rigidity and myoclonus (PERM) is an autoimmune disorder involving the brainstem and spinal cord and is sometimes associated with thymoma. We encountered a 75-year-old woman with typical PERM features, glycine receptor antibody, and thymoma. Her neurologic symptoms improved after thymectomy, but she unexpectedly developed anasarca with massive pleural effusions and hypoalbuminemia and finally succumbed to death. The autopsy showed edema and mononuclear infiltration in the pleura but no neuropathological findings typical of PERM. Effective treatment of PERM can reverse the neuropathological signs of encephalomyelitis. The autoimmune nature of anasarca is possible but not proven.


Asunto(s)
Enfermedades Autoinmunes/complicaciones , Edema/etiología , Encefalomielitis/complicaciones , Rigidez Muscular/complicaciones , Mioclonía/complicaciones , Timectomía/efectos adversos , Timoma/complicaciones , Timoma/cirugía , Neoplasias del Timo/complicaciones , Neoplasias del Timo/cirugía , Anciano , Autoanticuerpos/sangre , Enfermedades Autoinmunes/cirugía , Autopsia , Edema/inmunología , Encefalomielitis/cirugía , Resultado Fatal , Femenino , Humanos , Rigidez Muscular/cirugía , Mioclonía/cirugía , Derrame Pleural/etiología , Derrame Pleural/inmunología , Complicaciones Posoperatorias , Receptores de Glicina/inmunología , Albúmina Sérica/análisis
7.
Clin Chim Acta ; 484: 21-25, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-29752915

RESUMEN

BACKGROUND: Protein intake, particularly branched chain amino acids (BCAAs), and exercise have opposing actions on insulin secretion, but the same action on protein anabolism. We examined the effects of BCAA-rich fat-free milk intake and/or exercise on levels of insulin secretion and indices related to muscle protein metabolism in order to assess the potency of dietary and exercise therapies against metabolic and locomotive disorders. METHODS: Eight adult female volunteers participated in all four 24 h experiments; control diet intake with or without exercise, and fat-free milk-containing diet intake with or without exercise. Fat-free milk was replaced with one-sixth of all foods in the control diet. Exercise was set at an equal-energy level as fat-free milk. Urine and fasting blood samples were collected for each experiment. RESULTS: Urinary C-peptide immunoreactivity excretion and serum insulin levels were significantly higher, but urinary 3-methyl-histidine excretion levels were significantly lower with low urinary adrenaline and dopamine excretion in the fat-free milk-containing diet than in the control diet. These findings were reduced by exercise with high urinary adrenaline and noradrenaline excretion. CONCLUSIONS: BCAA-rich fat-free milk intake enhanced insulin secretion and suppressed muscle protein degradation, but these effects are attenuated by exercise accompanied with increase in catecholamine secretion.


Asunto(s)
Aminoácidos de Cadena Ramificada/metabolismo , Ejercicio Físico/fisiología , Insulina/metabolismo , Leche/metabolismo , Músculo Esquelético/metabolismo , Adulto , Aminoácidos de Cadena Ramificada/administración & dosificación , Aminoácidos de Cadena Ramificada/química , Animales , Catecolaminas/metabolismo , Femenino , Voluntarios Sanos , Humanos , Insulina/sangre , Leche/química , Adulto Joven
8.
J Neurol Sci ; 373: 321-328, 2017 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-28131213

RESUMEN

Spinocerebellar ataxia type 6 (SCA6) is an autosomal dominant neurodegenerative disorder. However, it remains unclear whether SCA6 shows a gene dosage effect, defined by earlier age-of-onset in homozygotes than heterozygotes. Herein, we retrospectively analyzed four homozygous SCA6 subjects from our single institution cohort of 120 SCA6 subjects. We also performed a neuropathological investigation into an SCA6 individual with compound heterozygous expansions. In the 116 heterozygotes, there was an inverse correlation of age-of-onset with the number of CAG repeats in the expanded allele, and with the total number of CAG repeats, in both normal and expanded alleles. The age-of-onset in the four homozygotes was within the 95% confidence interval of the age-of-onset versus the repeat-lengths correlations determined in the 116 heterozygotes. Nevertheless, all homozygotes had earlier onset than their parents, and showed rapid disease progression. Neuropathology revealed neuronal loss, as well as α1A-calcium channel protein aggregates in Purkinje cells, a few α1A-calcium channel protein aggregates in the neocortex and basal ganglia, and neuronal loss in Clarke's column and the globus pallidus not seen in heterozygotes. These data suggest a mild clinical and neuropathological gene dosage effect in SCA6 subjects.


Asunto(s)
Encéfalo/patología , Canales de Calcio/genética , Dosificación de Gen , Ataxias Espinocerebelosas/genética , Ataxias Espinocerebelosas/patología , Adulto , Edad de Inicio , Anciano , Anciano de 80 o más Años , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Ataxias Espinocerebelosas/fisiopatología , Expansión de Repetición de Trinucleótido
9.
J Craniofac Surg ; 27(2): 328-30, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26890456

RESUMEN

BACKGROUND: Treatment of orbital floor fracture accompanied by extensive bone defect requires orbital floor reconstruction using a bone graft, but graft may deviate into the maxillary sinus when no bone capable of supporting the graft remains around the defect. In such cases, it is necessary to fix the grafted bone to the orbital margin, but the grafted bone placement site is subjectively decided based on inspection through a small incision in many cases, being dependent on the experience of operators, and it has been difficult to accurately determine the placement angle. METHODS: The authors applied a navigation system in 4 patients with orbital blowout fracture, and evaluated for the exact bone graft placement angle and orbital floor form during surgery. RESULTS: The bone graft placement angle was evaluated by comparison with a mirror image of the nonaffected side. The angle could be confirmed during surgery, as well as the lateral symmetry of the orbital form. On postoperative computed tomography, the grafted bone was retained at a favorable placement site. CONCLUSIONS: The navigation system may be useful to support the treatment of orbital blowout fracture, as it facilitates safe dissection around orbital floor bone defects, confirmation of the positional relationship between the bone fragment and orbital tissue and bone graft fixation position, and evaluation of lateral symmetry of the orbital floor form during surgery.


Asunto(s)
Trasplante Óseo/métodos , Fracturas Orbitales/cirugía , Cirugía Asistida por Computador/instrumentación , Cirugía Asistida por Computador/métodos , Adulto , Anciano , Femenino , Humanos , Seno Maxilar/diagnóstico por imagen , Seno Maxilar/cirugía , Persona de Mediana Edad , Órbita/diagnóstico por imagen , Órbita/cirugía , Fracturas Orbitales/diagnóstico por imagen , Complicaciones Posoperatorias/diagnóstico por imagen , Complicaciones Posoperatorias/etiología , Tomografía Computarizada por Rayos X , Cigoma/diagnóstico por imagen , Cigoma/cirugía , Fracturas Cigomáticas/diagnóstico por imagen , Fracturas Cigomáticas/cirugía
10.
Environ Sci Technol ; 49(8): 5189-94, 2015 Apr 21.
Artículo en Inglés | MEDLINE | ID: mdl-25794300

RESUMEN

Functional forms of the unburned carbon present in six kinds of coal fly ashes have been examined mainly by the temperature-programmed desorption (TPD)/temperature-programmed oxidation (TPO) and laser Raman spectroscopy (LRS) methods. The carbon contents of the ash samples range from 0.4 to 4.1 mass%. The LRS analysis shows that the C consists of both amorphous and crystallized forms, and the proportion of the former is as large as 50-65 C%. Further, the TPD measurement exhibits that the C contains several types of surface oxygen species, such as carboxyl and lactone/acid anhydride groups, which can readily be decomposed into CO2 up to 700 °C to provide active carbon sites. The results of the TPD also indicate that the ashes have surface CaCO3, and most of this species can be converted to CaO and CO2 around 600-700 °C. Interestingly, there is a significant correlation between organic fluorine concentrations and carboxyl/lactone/acid anhydride groups or surface CaCO3 contents in the ash samples. It might thus be possible that the formation of organic F forms proceeds through gas-solid-solid interactions among HF (and/or F2) in flue gas, active carbon sites and surface Ca species produced around 600-700 °C downstream of coal-fired boilers.


Asunto(s)
Carbono/química , Ceniza del Carbón/análisis , Ceniza del Carbón/química , Carbonato de Calcio/análisis , Carbonato de Calcio/química , Flúor/análisis , Oxidación-Reducción , Oxígeno/análisis , Espectrometría Raman , Temperatura
11.
Plast Reconstr Surg Glob Open ; 2(9): e208, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25426391

RESUMEN

BACKGROUND: Here, we introduce our recent operative technique for ear elevation that results in (1) minimal morbidity for patients, (2) symmetric appearance, (3) clearer 3-dimensional structure with a deep concha, (4) good aesthetic appearance by hiding the grafted area behind the ear, and (5) maintenance of deep temporoauricular sulcus and angle. METHODS: After a skin incision, the ear is elevated with temporoparietal fascia underlying the cartilage. On the conchal area, undermining is performed just below the skin so that the deep concavity can be maintained. Scalp and neck skin behind the ear is undermined subcutaneously and lifted up cranially to hide the entire area of grafted skin behind the ear. The postauricular surface is covered by full-thickness skin from the lower abdomen. A protective splint is applied for 3 months while sleeping. RESULTS: A total of 137 ears in 121 patients were corrected with our technique and followed up for at least 3 years. All of the scar tissue could be hidden behind the ear, an aesthetically excellent result. CONCLUSIONS: Our technique made it possible to acquire an excellent and symmetrical shape of the ear. The important points in our procedure are as follows: (1) subcutaneous posterior undermining to enlarge the conchal cavity, (2) careful arrangement of the temporoauricular angle and auriculo-earlobe angle, (3) reduction in the area of temporally grafted skin to hide all scars behind the ear, and (4) protection of the ear to maintain the shape using a postoperative splint.

12.
Int J Urol ; 21(11): 1162-6, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24964194

RESUMEN

OBJECTIVES: To study the effect of carbazochrome sodium sulfonate, an agent that reduces capillary permeability, on refractory chronic prostatitis. METHODS: Patients with prostatitis refractory to at least 8 weeks of routine therapy and with urinalysis positive for microhematuria were considered for the present study. In addition to their prior therapy, the patients received carbazochrome at a dose of 30 mg three times a day. The severity of pain (score 0-10), daytime and night-time frequency, international prostate symptom score, global self-assessment, urine occult blood positivity, and adverse events were assessed after 4 and 8 weeks of treatment, and compared with baseline findings. RESULTS: A total of 50 patients (mean age 68.6 ± 8.5 years) were evaluable. The pain score decreased significantly from 3.2 ± 2.1 at baseline to 1.7 ± 1.4 after 4 weeks of treatment and to 1.1 ± 1.8 after 8 weeks. Daytime and night-time frequency, storage symptoms, post-micturition symptoms, and urine occult blood positivity also significantly improved. More than 36% of the patients gave a global self-assessment rating of "improved" or "better" after both 4 and 8 weeks of treatment. Mild adverse events occurred in three patients; one had nausea and two developed drug rash. CONCLUSIONS: Carbazochrome seems to effectively improve pain as well as storage and post-micturition symptoms in patients with refractory chronic prostatitis.


Asunto(s)
Adrenocromo/análogos & derivados , Hemostáticos/uso terapéutico , Prostatitis/tratamiento farmacológico , Adrenocromo/uso terapéutico , Anciano , Enfermedad Crónica , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
13.
J Magn Reson Imaging ; 39(1): 172-8, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23589321

RESUMEN

PURPOSE: To elucidate a role of apparent diffusion coefficient (ADC) value as a biomarker of bladder cancer, we investigated its associations with Ki-67 labeling index (LI) along with classical clinicopathological prognosticators. MATERIALS AND METHODS: Diffusion-weighted MRI (DW-MRI) at 1.5 Tesla using b-values of 0, 500, 1000, and 2000 s/mm(2) was prospectively taken before transurethral resection by 132 bladder cancer patients. ADC value of index tumors was measured and compared with clinicopathological prognosticators including Ki-67 LI. RESULTS: ADC value was significantly lower in tumors with higher Ki-67 LIs, sessile tumors (versus papillary), larger tumors, higher grade disease, and higher T stage disease. ADC value inversely correlated with Ki-67 LI (ρ = -0.57; P < 0.0001). On multiple regression analysis, T stage and Ki-67 LI significantly correlated with ADC value. The Akaike information criterion confirms these two parameters constitute the best model for determining ADC value. Similarly, T stage and ADC value significantly correlated with Ki-67 LI and these two parameters composed the best model for predicting Ki-67 LI. CONCLUSION: ADC value would reflect T stage and Ki-67 LI, representing invasive and proliferative potential, respectively. ADC value is likely to serve as a biomarker reflecting aggressiveness of bladder cancer.


Asunto(s)
Imagen de Difusión por Resonancia Magnética , Neoplasias de la Vejiga Urinaria/patología , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores/metabolismo , Proliferación Celular , Femenino , Humanos , Antígeno Ki-67/metabolismo , Masculino , Persona de Mediana Edad , Análisis Multivariante , Invasividad Neoplásica , Pronóstico , Estudios Prospectivos , Neoplasias de la Vejiga Urinaria/diagnóstico
14.
Sensors (Basel) ; 13(4): 4640-58, 2013 Apr 08.
Artículo en Inglés | MEDLINE | ID: mdl-23567529

RESUMEN

The ISIS is an ultra-fast image sensor with in-pixel storage. The evolution of the ISIS in the past and in the near future is reviewed and forecasted. To cover the storage area with a light shield, the conventional frontside illuminated ISIS has a limited fill factor. To achieve higher sensitivity, a BSI ISIS was developed. To avoid direct intrusion of light and migration of signal electrons to the storage area on the frontside, a cross-sectional sensor structure with thick pnpn layers was developed, and named "Tetratified structure". By folding and looping in-pixel storage CCDs, an image signal accumulation sensor, ISAS, is proposed. The ISAS has a new function, the in-pixel signal accumulation, in addition to the ultra-high-speed imaging. To achieve much higher frame rate, a multi-collection-gate (MCG) BSI image sensor architecture is proposed. The photoreceptive area forms a honeycomb-like shape. Performance of a hexagonal CCD-type MCG BSI sensor is examined by simulations. The highest frame rate is theoretically more than 1Gfps. For the near future, a stacked hybrid CCD/CMOS MCG image sensor seems most promising. The associated problems are discussed. A fine TSV process is the key technology to realize the structure.

15.
J Plast Reconstr Aesthet Surg ; 66(5): 629-33, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23434195

RESUMEN

Z-plasty is one of the most widely employed techniques in plastic surgery and mainly serves the following purposes: elongation along the axis of the scar, dispersal of the scar followed by breaking up the straight-line scar and realigning the scar within the lines of minimal tension. It is useful especially to release linear-scar contracture, yet difficult for wide scars. This report describes a novel technique to release contracture effectively for any wide scars using a new design called double combined Z-plasty. The design is simple. The main limb is set to incise the wide scar, and this main limb is shared as a peripheral limb by two other Z-plasty designs. From the main limb, each central limb is designed along the margin of the scar in the opposite direction. The main and central limbs have 90° between them. Other peripheral limbs are then designed facing laterally to the intact skin to make 60° for the central limb. After skin incision, two triangular intact skin flaps could be inserted into the wide scar from both sides, making it possible to release contracture. We performed this technique on eight patients. All wounds healed well and scar contracture was satisfactorily released. This procedure is very useful for wide-scar contracture, compared to conventional Z-plasty.


Asunto(s)
Cicatriz/cirugía , Contractura/cirugía , Procedimientos de Cirugía Plástica/métodos , Trasplante de Piel/métodos , Traumatismos de los Tejidos Blandos/cirugía , Colgajos Quirúrgicos , Adolescente , Adulto , Niño , Cicatriz/complicaciones , Contractura/etiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Traumatismos de los Tejidos Blandos/complicaciones , Adulto Joven
16.
Int J Vasc Med ; 2013: 437471, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24386568

RESUMEN

For the treatment of critical limb ischemia, collaboration with wound specialists and cardiologists performing revascularization is important. The foot care unit affiliated with related departments opened at our hospital in July 2010 for limb salvage, mainly under the leadership of the departments of cardiovascular internal medicineand plastic surgery. We have treated 194 patients up until October 2012. The primary diseases included 81 cases (87 limbs) of foot ulcer and gangrene, with complications of peripheral arterial diseases (PADs) in all cases. Intravascular treatment was conducted for 69 limbs with PAD complications, and the initial success rate was 85.5%, of which surgical debridement or minor amputation was performed on 32 limbs. Regarding open wounds following operation and chronic ulcer, platelet-rich plasma therapy was conducted in 29 limbs and negative pressure wound therapy in 15 limbs. Among all of the patients treated, 58 limbs healed, 10 cases died, and the others are currently receiving ongoing treatment. Cardiovascular internal medicine specialists and plastic surgeons examine patients together at the outpatient clinic and prepare and implement a multidisciplinary treatment plan including vascular reconstructions and operation. We cooperate with physicians in each related department and efforts in team medicine have been made for the purpose of limb salvage.

17.
J Vet Med Sci ; 75(5): 633-8, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23229540

RESUMEN

We have developed a rapid and efficient genotyping method for detection of the mouse leptin obese mutation (Lep(ob)) using tetra-primer amplification refractory mutation system-polymerase chain reaction (tetra-primer ARMS-PCR). In this method, whole blood collected onto gamma-ray sterilized Flinders Technology Associates (FTA) filter paper is used as PCR template without a DNA purification step. Three genotypes (Lep(ob)/Lep(ob), Lep(ob)/+ and +/+) differentiated by single-tube PCR and electrophoresis were perfectly consistent with those determined by PCR-restriction fragment length polymorphism (PCR-RFLP). This method can save material costs and operation time, because it does not require restriction enzyme digestion and could be set up in most specific pathogen-free (SPF) barrier facilities.


Asunto(s)
Técnicas de Genotipaje/métodos , Leptina/genética , Mutación/genética , Obesidad/genética , Animales , Secuencia de Bases , Cartilla de ADN/genética , Ratones , Datos de Secuencia Molecular , Técnicas de Amplificación de Ácido Nucleico/métodos , Reacción en Cadena de la Polimerasa/métodos , Polimorfismo de Longitud del Fragmento de Restricción , Organismos Libres de Patógenos Específicos/genética
18.
Mod Pathol ; 25(9): 1284-97, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22596102

RESUMEN

Sarcoidosis likely results from the exposure of a genetically susceptible subject to an environmental agent, possibly an infectious one. Mycobacterial and propionibacterial organisms are the most commonly implicated potential etiologic agents. Propionibacterium acnes is the only microorganism, however, found in sarcoid lesions by bacterial culture. To evaluate the pathogenic role of this indigenous bacterium, we screened for the bacterium in sarcoid and non-sarcoid tissues using immunohistochemical methods with novel P. acnes-specific monoclonal antibodies that react with cell-membrane-bound lipoteichoic acid (PAB antibody) and ribosome-bound trigger-factor protein (TIG antibody). We examined formalin-fixed and paraffin-embedded samples of lungs and lymph nodes from 196 patients with sarcoidosis, and corresponding control samples from 275 patients with non-sarcoidosis diseases. The samples were mostly from Japanese patients, with 64 lymph node samples from German patients. Immunohistochemistry with PAB antibody revealed small round bodies within sarcoid granulomas in 20/27 (74%) video-assisted thoracic surgery lung samples, 24/50 (48%) transbronchial lung biopsy samples, 71/81 (88%) Japanese lymph node samples, and 34/38 (89%) German lymph node samples. PAB antibody did not react with non-sarcoid granulomas in any of the 45 tuberculosis samples or the 34 samples with sarcoid reaction. In nongranulomatous areas, small round bodies detected by PAB antibody were found in alveolar macrophages of lungs and paracortical macrophages of lymph nodes from many sarcoid and some non-sarcoid patients. Large-spheroidal acid-fast bodies, Hamazaki-Wesenberg bodies, which were found in 50% of sarcoid and 15% of non-sarcoid lymph node samples, reacted with both PAB and TIG antibodies. Electron microscopy revealed that these Hamazaki-Wesenberg bodies had a single bacterial structure and lacked a cell wall with occasional protrusions from the body. The high frequency and specificity of P. acnes, detected by PAB antibody within sarcoid granulomas, indicates that this indigenous bacterium might be the cause of granuloma formation in many sarcoid patients.


Asunto(s)
Infecciones por Bacterias Grampositivas/microbiología , Granuloma/microbiología , Ganglios Linfáticos/microbiología , Propionibacterium acnes/aislamiento & purificación , Sarcoidosis Pulmonar/microbiología , Animales , Anticuerpos Monoclonales de Origen Murino/biosíntesis , Femenino , Infecciones por Bacterias Grampositivas/patología , Infecciones por Bacterias Grampositivas/cirugía , Granuloma/patología , Granuloma/cirugía , Humanos , Hígado/microbiología , Hígado/patología , Ganglios Linfáticos/patología , Pigmentos Biológicos/análisis , Ratas , Ratas Sprague-Dawley , Sarcoidosis Pulmonar/patología , Sarcoidosis Pulmonar/cirugía
19.
J Obstet Gynaecol Res ; 38(1): 180-4, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21995561

RESUMEN

AIM: The aim of this study was to investigate the etiological characteristics of patients diagnosed with subchorionic hematoma. METHODS: A case-controlled study was performed to compare characteristics of patients and controls. Via ultrasound examination, 47 pregnant patients were found to have subchorionic hematomas and 1075 had no evidence of subchorionic hematomas (controls). In the second trimester, patients were compared with regard to endocervical Chlamydia trachomatis and other vaginal microorganisms. RESULTS: The overall incidence of subchorionic hematomas in this pregnant population was 4.2%. Maternal clinical characteristics did not differ between cases and controls. Evaluation of the vaginal flora revealed that the positive rates of coagulase-negative staphylococci (cases: 12.8%; controls: 4.1%; P<0.01) and Gardnerella vaginalis (cases: 12.8%; controls: 2.5%; P<0.001) in the cases were significantly higher than those of the controls. The negative rate of Lactobacillus in the cases was significantly higher than that of the controls (cases: 42.6%; controls: 27.6%; P<0.05). CONCLUSION: Pregnant women with subchorionic hematoma in the first trimester showed changes in vaginal flora in the second trimester, which suggests a possible association with subchorionic hematoma and vaginal flora change.


Asunto(s)
Corion/irrigación sanguínea , Hematoma/diagnóstico por imagen , Complicaciones del Embarazo/diagnóstico por imagen , Adulto , Estudios de Casos y Controles , Infecciones por Chlamydia/diagnóstico , Chlamydia trachomatis/aislamiento & purificación , Corion/diagnóstico por imagen , Corion/microbiología , Femenino , Hematoma/epidemiología , Hematoma/microbiología , Humanos , Incidencia , Embarazo , Complicaciones del Embarazo/epidemiología , Complicaciones del Embarazo/microbiología , Segundo Trimestre del Embarazo , Ultrasonografía , Vagina/microbiología
20.
J Histochem Cytochem ; 60(1): 76-86, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22205682

RESUMEN

γ-Glutamyl cyclotransferase (GGCT) contributes to the γ-glutamyl cycle that regulates glutathione metabolism. Although GGCT has been implicated in several studies as a possible cancer marker, little is known about its distribution in cells and tissues. The authors investigated GGCT expression in normal tissues and tumors using Western blots and immunohistochemistry with a novel anti-GGCT monoclonal antibody. GGCT was detected in most organs and was mainly found in epithelial cells. Although the intracellular distribution was mainly cytoplasmic, in some situations, nuclear staining was strong. A significant increase in the expression of GGCT was found in tumors of the lung, esophagus, stomach, bile duct, and uterine cervix. In contrast, there was a significant decrease in expression in renal and urothelial tumors. These results suggest that GGCT may be a biomarker of tumors in a limited range of organs.


Asunto(s)
Biomarcadores de Tumor/metabolismo , gamma-Glutamilciclotransferasa/metabolismo , Anciano , Anticuerpos Monoclonales , Especificidad de Anticuerpos , Línea Celular Tumoral , Femenino , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , Neoplasias/metabolismo , Especificidad de Órganos , gamma-Glutamilciclotransferasa/inmunología
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