RESUMEN

For the past few decades source localization, based on EEG modality, has been a very active area of research. EEG signal provides temporal resolution in millisecond range that can capture rapidly changing patterns of brain activity but it has a low spatial resolution as compared to techniques like fMRI, PET, CT scan, etc. So, one of the motives of this research is to improve the spatial resolution of the EEG signal. Many successful attempts have been made to localise the active neural sources using EEG signals with the introduction of techniques like MNE, LORETA, sLORETA, FOCUSS, etc. But these techniques require a large number of electrodes for correct localization of a few sources. This paper aims at providing a new method for the localization of EEG sources with a fewer electrode. This is achieved by exploiting the second-order statistics to enhance the aperture and solve the EEG localization problem. The comparison of the proposed method with the state-of-the-art methods is done by observing the localization error with variation in SNR, number of snapshots (time samples), number of active sources, and number of electrodes. The results show that the proposed method can detect a greater number of sources with fewer electrodes and with higher accuracy as compared to methods available in the literature. Real -time EEG signal during an arithmetic task is considered and the proposed algorithm clearly shows a sparse activity in the frontal region.

Asunto(s)

Encéfalo , Electroencefalografía , Encéfalo/diagnóstico por imagen , Electroencefalografía/métodos , Imagen por Resonancia Magnética/métodos , Electrodos , Algoritmos , Mapeo Encefálico/métodos

RESUMEN

INTRODUCTION: Dermatophytosis is one of the commonest dermatoses observed in Dermatology OPD. It is caused by Fungus Dermatophyte. Its pattern and prevalence varies from region to region. As self medication practice is very common, we aim to find the prevalence of various clinical pattern of dermatophytosis and to find out the medication commonly used by the patients for this condition. METHODS: This was cross sectional observational study. The case collection was done from outpatient department of Dermatology and Venereology of a Teaching Hospital from 15th March, 2013 to 14 March, 2014. Demographic, Clinical and other relevant details were recorded in Proforma after history and examination. RESULTS: The total number of cases were 594. Crural area was the most commonly involved. Tinea corporis was most common dermatophytosis followed by Tinea incognito. Risk of recurrence was highest in buttocks [odds ratio-2.404 (1.510, 3.827) and crural area [odds ratio- 2.298 (1.637,3.266). Topical steroid and topical steroid with antifungal was used by 225 (30.1%) and 226 (30.2%) respectively. Patients who consulted dermatologist were more likely to use antifungal, odds ratio-12.060 (4.907, 29.643). CONCLUSIONS: Tinea corporis was the commonest dermatophytosis. Due to practice of topical steroid misuse T. incognito was second common. It is essential to educate the general public, pharmacist and paramedics regarding the proper use of topical steroid.

Asunto(s)

Antifúngicos/uso terapéutico , Autocuidado/métodos , Esteroides/uso terapéutico , Tiña/tratamiento farmacológico , Administración Tópica , Estudios Transversales , Humanos , Recurrencia , Tiña/patología

RESUMEN

AIMS: Patent foramen ovale (PFO) has been implicated in the etiology of a number of different pathologies, including cryptogenic stroke, decompression sickness in divers, etc. It can act as a channel for paradoxical embolism. PFO is not an uncommon condition, with a probe-patency in 15-35% population. The fossa ovalis (FOv) varies in size and shape from heart to heart; the prominence of annulus FOv also varies. The entire FOv may be redundant and aneurysmal. The anatomico-functional characterization of interatrial septum seems to be of paramount importance for both atrial septal defect (ASD) and PFO, not only for the device selection, but also for the evaluation of the outcome of this procedure. METHOD: This study was conducted in 50 apparently normal hearts available in Department of Anatomy. After opening the right atrium, the shape of FOv was observed. The size was measured with the digital vernier caliper; the prominence and extent of limbus, and the redundancy or otherwise of FOv were noted; probe patency was confirmed. RESULTS: In the majority, FOv was oval (82%); average transverse diameter was 14.53mm and vertical 12.60mm. In 90%, the rim of the annulus was raised; in 20%, a recess was found deep to the margin of the annulus; and 18% showed probe patency. CONCLUSION: As no study of this nature has been carried out in the Indian population, this provides pertinent information on the morphology of FOv, which may be useful for device selection in treating ASD and PFO.

Asunto(s)

Ecocardiografía Transesofágica/métodos , Foramen Oval Permeable/diagnóstico , Foramen Oval/anatomía & histología , Tabique Interatrial/anatomía & histología , Cadáver , Humanos , Valores de Referencia

RESUMEN

Given the involvement of telomerase activation and dysregulated metabolism in glioma progression, the connection between these two critical players was investigated. Pharmacological inhibition of human Telomerase reverse transcriptase (hTERT) by Costunolide induced glioma cell apoptosis in a reactive oxygen species (ROS)-dependent manner. Costunolide induced an ROS-dependent increase in p53 abrogated telomerase activity. Costunolide decreased Nrf2 level; and ectopic Nrf2 expression decreased Costunolide-induced ROS generation. While TERT knock-down abrogated Nrf2 levels, overexpression of Nrf2 increased TERT expression. Inhibition of hTERT either by Costunolide, or by siRNA or dominant-negative hTERT (DN-hTERT) abrogated (i) expression of Glucose-6-phosphate dehydrogenase (G6PD) and Transketolase (TKT) - two major nodes in the pentose phosphate (PPP) pathway; and (ii) phosphorylation of glycogen synthase (GS). hTERT knock-down decreased TKT activity and increased glycogen accumulation. Interestingly, siRNA-mediated knock-down of TKT elevated glycogen accumulation. Coherent with the in vitro findings, Costunolide reduced tumor burden in heterotypic xenograft glioma mouse model. Costunolide-treated tumors exhibited diminished TKT activity, heightened glycogen accumulation, and increased senescence. Importantly, glioblastoma multiforme (GBM) patient tumors bearing TERT promoter mutations (C228T and C250T) known to be associated with increased telomerase activity; exhibited elevated Nrf2 and TKT expression and decreased glycogen accumulation. Taken together, our findings highlight the previously unknown (i) role of telomerase in the regulation of PPP and glycogen accumulation and (ii) the involvement of Nrf2-TERT loop in maintaining oxidative defense responses in glioma cells.

Asunto(s)

Neoplasias Encefálicas/genética , Regulación Neoplásica de la Expresión Génica , Glioblastoma/genética , Factor 2 Relacionado con NF-E2/genética , Vía de Pentosa Fosfato/genética , Telomerasa/genética , Animales , Antineoplásicos Fitogénicos/farmacología , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/metabolismo , Neoplasias Encefálicas/patología , Línea Celular Tumoral , Senescencia Celular/efectos de los fármacos , Glioblastoma/tratamiento farmacológico , Glioblastoma/metabolismo , Glioblastoma/patología , Glucosafosfato Deshidrogenasa/genética , Glucosafosfato Deshidrogenasa/metabolismo , Glucógeno/biosíntesis , Glucógeno Sintasa/genética , Glucógeno Sintasa/metabolismo , Humanos , Ratones , Ratones Desnudos , Factor 2 Relacionado con NF-E2/antagonistas & inhibidores , Factor 2 Relacionado con NF-E2/metabolismo , Vía de Pentosa Fosfato/efectos de los fármacos , Fosforilación/efectos de los fármacos , ARN Interferente Pequeño/genética , ARN Interferente Pequeño/metabolismo , Especies Reactivas de Oxígeno/agonistas , Especies Reactivas de Oxígeno/metabolismo , Sesquiterpenos/farmacología , Transducción de Señal , Telomerasa/metabolismo , Transcetolasa/antagonistas & inhibidores , Transcetolasa/genética , Transcetolasa/metabolismo , Proteína p53 Supresora de Tumor/genética , Proteína p53 Supresora de Tumor/metabolismo , Ensayos Antitumor por Modelo de Xenoinjerto

RESUMEN

Assessment of fetal heart rate (FHR) and fetal heart rate variability (fHRV) reveals important information about fetal well-being, specifically in high risk pregnancies. Abdominal electrocardiogram (abdECG) recording is a non-invasive method to capture fetal electrocardiograms. In this paper, we propose a methodology to extract FHR (fetal RR time series) from the abdECG recordings using the recently introduced multivariate empirical mode decomposition (MEMD) technique. MEMD breaks a signal into a finite set of intrinsic mode functions (IMFs). First, elimination of the noisier abdECG channels, based on comparison of similar indexed IMFs that were obtained through the MEMD technique, is conducted. Thereafter, denoising of the remaining abdECG channels is performed by eliminating certain similar indexed IMFs. The unwanted mother QRS complexes are removed from these noise-free abdECG channels, and the candidate fetal R-peaks are detected through a wavelet based approach. The proposed methodology is validated using an open source real-life clinical database. The proposed technique resulted in a high value (0.983) of cross correlation between the detected and true FHR signals.

Asunto(s)

Electrocardiografía/métodos , Frecuencia Cardíaca Fetal , Procesamiento de Señales Asistido por Computador , Electrocardiografía/instrumentación , Humanos

RESUMEN

The bicipital aponeurosis (BA) is a fascial expansion which arises from the tendon of biceps brachii and dissipates some of the force away from its enthesis. It helps in dual action of biceps brachii as supinator and flexor of forearm. The aim of the present work was to study the morphology of BA. Thirty cadavericupper limbs (16 right and 14 left side limbs) were dissected and dimensions ofthe BA were noted. The average width of aponeurosis at its commencement on the right was 15.74 mm while on the left it was 17.57 mm. The average angle between tendon and aponeurosis on the right was 21.16° and on the left it was 21.78°. The fibres from the short head of the biceps brachii contributed to the formation of proximal part of aponeurosis. Fascial sheath over the tendon oflong head of biceps brachii was seen to form the distal part of the aponeurosis. In 5 cases, large fat globules were present between the sheath and the tendon. Histologically: The aponeurosis showed presence of thick collagen bundles. Fascials heath covering the tendon of long head extended towards the aponeurosis and passed superficial to the tendon of biceps. Blood vessels and adipose tissue were found to be present between fascial sheath and the tendon. This morphological description of BA may be helpful 1) in elucidating the dynamic role that BA plays in normal functioning and 2) to the surgeons in the repair of ruptured biceps brachii tendon.

Asunto(s)

Fascia/anatomía & histología , Tendones/anatomía & histología , Cadáver , Humanos , Músculo Esquelético/anatomía & histología

RESUMEN

A series of 4-(2,5-dimethylpyrrol-1-yl)/4-pyrrol-1-yl benzoic acid hydrazide analogs, some derived triazoles, azetidinones, thiazolidinones, and pyrroles have been synthesized in good yields and structures of these compounds were established by IR, (1)H NMR, (13)C NMR, mass spectral, and elemental analysis. These compounds were evaluated for their preliminary in vitro antibacterial, antifungal, and antitubercular activity against Mycobacterium tuberculosis H37 Rv strain by the broth dilution assay method. Twenty one of these compounds displayed good antimicrobial activity, with a MIC value of 1-4 µg/ml. Several compounds 4c, 8-10, 15b-15h, and 16b-16d exhibited good in vitro antitubercular activity with MIC value 1-2 µg/ml. Further, some title compounds were also assessed for their cytotoxic activity (IC50) against mammalian Vero cell lines and A549 (lung adenocarcinoma) cell lines using the MTT assay method. The results revealed that these compounds exhibit antitubercular activity at non-cytotoxic concentrations.

RESUMEN

The vasospastic diseases and chronic pain related to lower limb have been successfully treated by surgical ablation of lumbar sympathetic trunk for last 80 years.Precise knowledge of anatomy of lumbar sympathetic trunk and its adjoining structures is mandatory for safe and uncomplicated lumbar and spinal surgeries.We aim to study the detailed anatomy of entry and exit of lumbar sympathetic trunk, the number, dimensions and location of lumbar ganglia in relation to lumbar vertebra. Thorough dissection was carried out in 30 formalin embalmed cadavers available in the Department of Anatomy, Pravara Institute of Medical Sciences (PIMS), Rural Medical College (RMC), Loni, Maharashtra. A total of 238 ganglia were observed in 60 lumbar sympathetic trunks. The sympathetic trunk traversed dorsal to the crus of diaphragm in 72.6% and in 13.3% it entered dorsal to the medial arcuate ligament. The most common site of the location of lumbar ganglia was in relation to the second lumbar vertebra, sometimes extending up to the L2-L3 vertebral disc. There was a medial shift of sympathetic trunk in lumbar region and it coursed over sacral promontory to reach the pelvic region in 96% of specimens. These variations should be kept in mind in order to prevent hazardous complications like accidental avulsion of first lumbar ganglia and genitofemoral neuritis.

Asunto(s)

Ganglios Simpáticos/anatomía & histología , Vértebras Lumbares/anatomía & histología , Región Lumbosacra/anatomía & histología , Sistema Nervioso Simpático/anatomía & histología , Anciano , Cadáver , Disección , Femenino , Humanos , Vértebras Lumbares/inervación , Masculino , Persona de Mediana Edad

RESUMEN

The size and shape of the thyroid gland is subject to much variation, as stated by Wood Jones. Literature is replete with a large number of variations of the gland. By utilizing various techniques like gross dissection, histology, developmental anatomy, and recently thyroid scans and scintigraphy, some common and certain rare anomalies of the thyroid with their possible developmental bases are described in the literature. An attempt has been made to study the thyroid glands in 90 male cadavers available in our department, with ages ranging from 60 to 75 years with mean height of 5'4". The parameters that were observed included the length and width of lobes, presence or absence of pyramidal lobe, levator glandulae thyroideae, and isthmus with its relation to the tracheal rings. The average length of the right lobe was 4.32 cm, and the left lobe was 4.22 cm. The thickness of the right lobe was 1.13 cm, and the left lobe was 1.18 cm. Pyramidal lobe was present in 34 (37.77%) cases, frequently arising from the left lobe, while the levator glandulae thyroideae was present in 27 (30%) instances, mostly attached superiorly to the body of the hyoid bone. The isthmus was absent in 15 (16.66%) cases; its relation with the tracheal rings greatly varied from the cricoid cartilage to the fourth tracheal ring. Knowledge of variations of the thyroid assumes significance as this has relevance in the resection of thyroid, tumours, and tracheostomy.

Asunto(s)

Glándula Tiroides/anatomía & histología , Tráquea/anatomía & histología , Anciano , Cadáver , Humanos , Masculino , Persona de Mediana Edad , Tamaño de los Órganos , Glándula Tiroides/fisiología , Tráquea/fisiología

RESUMEN

The large size of superficial group of muscles of back of leg is a characteristic feature of the musculature of man being related directly to its erect posture and mode of progression. Triceps surae is one of the powerful muscles of the body after Gluteus maximus and Quadriceps femoris. To make the muscle more powerful nature has devised a unique method of packing the fibers in a small space by pennation. There exists a bipenniform mass as a peculiarly human feature. Its feathered fasciculi arise from the deep (anterior) surface of the soleus muscle. Most of the textbooks of Anatomy and the available literature on the triceps surae or the tendoachillis do not appreciate and describe this fascinating aspect of the muscle. It was Schafer et al. (1923) who gave a detailed account of this muscle. Standring et al. (2005) have also described this muscle in great detail. We have studied the unique features of this part of soleus muscle. Bipennate arrangement was seen in 86 percent (right-83 percent; left-89 percent); and its maximum width was found to be 3.63 cm (Rt-3.71cm; Lt-3.55cm). Median tendinous septum was directed backwards and medially. Thus this muscle will further increase the power of contraction of soleus, which is so very important for a bipedal gait.

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El gran tamaño de los grupos musculares superficiales de la parte posterior de la pierna es un rasgo característico de la musculatura del hombre siendo relacionado directamente con su postura erguida y el modo de progresión. El músculo tríceps sural es uno de los músculos más potentes del cuerpo después de los músculos glúteo magno y cuadríceps femoral. Para hacer al músculo más potente, la naturaleza ha ideado un método único de empaquetamiento de las fibras en un pequeño espacio por pennación. Existe una masa bipenniforme como una característica peculiarmente humana. Los fascículos pennados surgen desde la superficie profunda (anterior) del músculo sóleo. La mayoría de los textos de Anatomía y la literatura disponible sobre el músculo tríceps sural o el tendón de Aquiles no se aprecia ni se describe este aspecto fascinante que tienen los músculos. Fue Schafer (1923) quien dió una detallada descripción del músculo sóleo y posteriormente, Standring et al. (2005) también describieron detalladamente al músculo. Estudiamos las características únicas de esta parte del músculo sóleo, observando una disposición bipenniforme en el 86 por ciento de los casos (derecha 83 por ciento; izquierda 89 por ciento). El ancho máximo del músculo fue de 3,63 cm (derecha 3,71cm; izquierda 3,55cm). El septo tendinoso mediano se dirigió hacia posterior y medial, aumentando así aún más el poder de contracción del músculo sóleo, el cual es muy importante para la bipedestación.

Asunto(s)

Humanos , Fibras Musculares Esqueléticas , Músculo Esquelético/anatomía & histología , Pierna/anatomía & histología , Cadáver

RESUMEN

INTRODUCTION: A sound knowledge of the normal and variant liver anatomy is a prerequisite to having a favourable surgical outcome. Knowledge of the commonly-occurring variations assumes even more significance in the era of diagnostic imaging and minimally-invasive surgical approaches. Although the segmental anatomy of the liver has been extensively researched, very few studies have dealt with the surface variations of the liver. METHODS: 90 formalin-fixed livers were utilised for the study. Variations regarding the shapes of the caudate and the quadrate lobes as well as the normal fissures were observed. The presence of the accessory fissures and any other variations on the surface of the livers were noted. RESULTS: Varied shapes of the caudate and the quadrate lobes were encountered. Notching along the inferior border of the caudate lobe was seen in 18 percent of livers, a vertical fissure was observed in 30 percent, and prominent papillary process was seen in 32 percent. Accessory fissures and grooves were more common in the right lobe. Multiple prominent vertical grooves were observed on the anterosuperior surface of the liver in six percent of livers. Quadrate lobe was absent in four percent, and in two cases, it was found to be deeply buried. Presence of a pons hepatis, bridging the left and the quadrate lobes, was observed in 30 percent of the livers examined. CONCLUSION: Our study is expected to serve as a guide for proper interpretations of liver images using various imaging modalities. It will also be useful to the operating surgeons to be aware of the frequently-occurring morphological variations on the liver surface.

Asunto(s)

Hígado/anatomía & histología , Anatomía/métodos , Diagnóstico por Imagen , Humanos , Hígado/fisiología , Modelos Anatómicos , Propiedades de Superficie

RESUMEN

BACKGROUND: Information on anatomy of intrahepatic inferior vena cava (IVC) and hepatic vein openings in it is limited. METHODS: We studied the retrohepatic segment of IVC and hepatic vein openings in it in 69 livers obtained from cadavers. The retrohepatic portion of the IVC was opened posteriorly by a vertical cut, the exposed surface was divided into 12 quadrants and the position, size, and septation of ostia of hepatic veins and any accessory openings were charted; measurements were made using Vernier calipers. RESULTS: The median length of the intrahepatic IVC was 5.7 (range 3.3-8.2) cm and its median diameter was 2.3 (range 1.5-3.0) cm. The superior (major) set of hepatic veins comprised of two veins (right and left-middle) in 45 (65%) cases, three veins (right, middle, and left) in 23 (33%) and four veins in one (2%) case. Median diameter of the right hepatic vein was 1.5 (range 0.8-2.7) cm and that of left hepatic vein was 1.2 (0.7-2.6) cm. Middle hepatic vein, when separate, had a median diameter of 1.1 (range 0.5-1.5) cm. The inferior (minor) set of hepatic veins had two to 16 (median 7) veins. CONCLUSIONS: Our data provide information on number, size, position, and septation of hepatic vein openings into the IVC. This information may be useful to hepatologists, hepatic surgeons while planning segmental resection of the liver, and to radiologists planning diagnostic and interventional procedures on hepatic venous system.

Asunto(s)

Venas Hepáticas/anatomía & histología , Hígado/irrigación sanguínea , Vena Cava Inferior/anatomía & histología , Adulto , Anciano , Pesos y Medidas Corporales , Cadáver , Femenino , Humanos , India , Masculino , Persona de Mediana Edad

RESUMEN

In the present study, a novel series of 4-pyrrol-1-yl benzoic acid hydrazide analogs, some derived 5-substituted-2-thiol-1,3,4-oxadiazoles, 5-substituted-4-amino-1,2,4-triazolin-3-thione and 2,5-dimethyl pyrroles have been synthesized in good yields and characterized by IR, NMR, mass spectral and elemental analyses. Compounds were evaluated for their preliminary in vitro antibacterial activity against some Gram-positive and Gram-negative bacteria and compounds were screened for antitubercular activity against Mycobacterium tuberculosis H37Rv strain by broth dilution assay method. Some compounds showed very good antibacterial and antitubercular activities.

Asunto(s)

Ácido Benzoico/síntesis química , Ácido Benzoico/farmacología , Oxadiazoles/química , Pirroles/química , Triazoles/química , Antibacterianos/síntesis química , Antibacterianos/química , Antibacterianos/farmacología , Antituberculosos/síntesis química , Antituberculosos/química , Antituberculosos/farmacología , Ácido Benzoico/química , Diseño de Fármacos , Mycobacterium tuberculosis/efectos de los fármacos

RESUMEN

An effort has been made to isolate individual catechin compounds from green tea leaves in their pure form by electrophoresis. In the present study total polyphenol extraction was carried out initially and estimated through spectrophotometric and HPLC methods. Extracted polyphenol was separated on 0.7% agarose gel and visualized at 360 nm. Fragmented individual compounds were gel eluted with methanol and confirmed as (-)-epigallocatechin (EGC), (-)-epicatechin (EC), (-)-epicatechin gallate (ECG), and (-)-epigallocatechin gallate (EGCG) by HPLC. The method developed describes a suitable method for the isolation of valuable molecules in tea.

Asunto(s)

Camellia sinensis/química , Flavonoles/análisis , Focalización Isoeléctrica , Metanol , Extractos Vegetales/química , Hojas de la Planta/química , Catequina/análogos & derivados , Catequina/análisis , Cromatografía Líquida de Alta Presión , Espectrofotometría

RESUMEN

Peroneus tertius (PT) muscle is peculiar to man, and man is the only member among the primates in whom this muscle occurs. The muscle is variable in its development and attachment. Because of functional demands of bipedal gait and plantigrade foot, part of extensor digitorum brevis (EDB) has migrated upwards into the leg from the dorsum of foot. PT is a muscle that evolution is rendering more important. In a total of 110 cadavers, extensor compartment of leg and dorsum of foot were dissected in both the lower limbs and extensor digitorum longus (EDL), and PT muscles were dissected and displayed. PT was found to be absent in 10.5% limbs, the incidence being greater on the right side. The remaining limbs in which the PT muscle was present had a very extensive origin from lower 3/4th of extensor surface of fibula (20% on right and in 17% on left), and the EDL was very much reduced in size. In approximately 12%, the tendon of PT was thick or even thicker than the tendon of EDL. In 4%, the tendon extended beyond fifth metatarsal up to metatarsophalangeal joint of fifth toe, and in 1.5%, it extended up to the proximal phalanx of little toe. In two cases (both on the right side), where PT was absent, it was replaced by a slip from lateral margin of EDL. We conclude that PT, which is preeminently human, is extending its purchase both proximally and distally.

Asunto(s)

Pie/anatomía & histología , Pierna/anatomía & histología , Músculo Esquelético/anatomía & histología , Disección , Peroné/anatomía & histología , Variación Genética , Humanos , Metatarso/anatomía & histología , Tendones/anatomía & histología

RESUMEN

Bulk precipitation samples at Mumbai (India) were collected during the monsoon seasons of 1991 to 1996 and analysed for ionic concentrations using an Ion Chromatograph DIONEX model 100. The variability of sulphate to nitrate ratio in rainwater fluctuates in a wide range from 1.5 to 20 and governed by the sulphate concentrations in the sample. The regression analysis of the data reveals that in the bulk precipitation at Mumbai, SO4(2-) is becoming increasingly important relative to NO3-. The role of meteorological influences on scavenging of air pollutants by rain water has been tried to explain the phenomena. The computed wet deposition rates for S and N during 1991-1996 show that the S deposition is higher than N in all the years. There is a wide fluctuation in deposition rates of S ranging from 2 to 55 kg km2 per annum.

Asunto(s)

Contaminantes Atmosféricos/análisis , Monitoreo del Ambiente , Lluvia , India , Iones , Nitrógeno/análisis , Estaciones del Año , Azufre/análisis

RESUMEN

The present study was undertaken to investigate the possible factors which may contribute to the altered digoxin levels in diabetic patients. The digoxin levels were found to be significantly higher in diabetics (1.74 +/- 0.09 ng/ml) as compared to non-diabetics (0.76 +/- 0.07 ng /ml). There was a positive correlation between digoxin levels and glycosylated haemoglobin levels. All diabetic patients had serum creatinine, urea and potassium levels within normal limits. However, serum TSH levels were found to be significantly higher in diabetics as compared to controls. Serum tri-iodo-1-thyronine (T3) levels were found to be lower in diabetics as compared to non-diabetics. Our data suggests that diabetes-mellitus causes alteration of digoxin levels. One of the causes of this increase in digoxin levels may be a tendency towards mild hypothyroidism associated with diabetes mellitus.

Asunto(s)

Cardiotónicos/sangre , Diabetes Mellitus/sangre , Digoxina/sangre , Anciano , Glucemia/metabolismo , Colesterol/sangre , Diabetes Mellitus/fisiopatología , Femenino , Hemoglobina Glucada/metabolismo , Humanos , Pruebas de Función Renal , Masculino , Persona de Mediana Edad , Pruebas de Función de la Tiroides , Hormonas Tiroideas/sangre

RESUMEN

Haemangiopericytoma of the floor of the mouth with metastases to the lumbar spine in a 23-year-old black woman is described. She represents the 36th patient with oral cavity haemangiopericytoma and the 4th with a floor of mouth lesion. The aggressive behaviour of haemangiopericytoma and its resistance to all forms of recommended treatment was shown in this patient.

Asunto(s)

Hemangiopericitoma , Suelo de la Boca , Neoplasias de la Boca , Adulto , Femenino , Hemangiopericitoma/secundario , Hemangiopericitoma/cirugía , Humanos , Vértebras Lumbares , Suelo de la Boca/patología , Neoplasias de la Boca/patología , Neoplasias de la Boca/cirugía , Recurrencia Local de Neoplasia , Neoplasias de la Columna Vertebral/secundario , Tomografía Computarizada por Rayos X

RESUMEN

A chemical analysis of suspended particulate matter (SPM) collected near the world famous Taj Mahal monument at Agra has been carried out. SPM samples collected on glass fibre filters were analysed for water-soluble sulphate, nitrate, chloride and ammonium ions. The data were derived from over 200 samples (each of 24 h), collected continuously during the winter periods (October through to March) of 1984-1985 and 1985-1986. The SO(4)(2-) and NO(3)(-) components are acidic in nature causing corrosion and effects on visibility, and so were studied in more detail. Mean values for SO(4)(2-) and NO(3)(-) derived from two-year data are 7.2 microg m(-3) and 8.2 microg m(-3), respectively. The SO(4)(2-)/SO(2) and NO(3)(-)/NO(2) ratiosobserved indicate faster conversion of SO(2) to SO(4)(2-) than NO(2) to NO(3)(-), the maximum levels being in January. Thus, both SO(4)(2-) and NO(3)(-) results appear to offer more promising indices of air quality than do SPM data alone.

Asunto(s)

Electrocardiografía , Electrodos , Agua , Femenino , Humanos , Masculino