Cyanide Toxicity of Freshly Prepared Smoothies and Juices Frequently Consumed

Aims: This study was conducted to detect the presence of cyanide in popular fruit and vegetable smoothies and juices marketed as raw and natural. Study Design: Eleven (11) popular varieties of drinks were analyzed for total cyanide (TCN). Drinks contained raw vegetables and fruits, flax seeds, whole apples with seeds, raw almond milk, and pasteurized almond milk as ingredients. Place and Study Duration: Samples were collected from health food eateries located within Las Vegas, Nevada (USA) during the summer of 2017. Methodology: Fifty milliliters (mL) of a homogenized smoothie and juice drink and 1 gram of flax seeds were subjected to the above-referenced methods for sample preparation per USEPA Methods 9012B (digestion) followed by USEPA method 9014 (colorimetry). Results: The highest TCN was detected in drinks containing raw flax seed followed by unpasteurized raw almond milk, then fresh whole apple juice. No TCN was observed in drinks that contained none of the above mentioned items (e.g. flax seed, raw almond milk) or those utilizing pasteurized ingredients. Conclusion: This study observed that TCN is present in smoothies and juices containing raw flax seeds, fresh whole apples, and/or unpasteurized almond milk. Concentrations were detected as high as 341 μg L-1 in commercially available smoothies containing vegetables, raw flax seeds, almond milk and fruits. Smoothies with vegetables, fruits, unpasteurized almond milk, and no flax seeds contained 41 ug L-1TCN, while similar smoothies with pasteurized almond milk contained negligible to 9.6 ug L-1 CN-. Unpasteurized almond milk and raw flax seeds were the major sources of TCN in drinks. With the increased demand for raw and natural foods, there is a potential sublethal exposure of TCN by consumers.

Biopsia hepática percutánea en pacientes ambulatorios: experiencia clínica de 23 casos / Percutaneous liver biopsy in ambulatory patients: clinic experience of 23 cases

La biopsia hepática sigue siendo importante en el diagnóstico de enfermedades del hígado, apareciendo las complicaciones del procedimiento dentro de las primeras horas, siendo necesario 4-6 horas de observación para su realización. Objetivos: Presentar nuestra casuística y protocolo de 23 casos de biopsia hepática percutánea en régimen ambulatorio. Materiales y Métodos: Revisión de fichas clínicas de pacientes a los que se les realizó el procedimiento. Se analizaron variables demográficas, exámenes de laboratorio, razón de indicación de biopsia y complicaciones mayores y menores durante fase hospitalaria y ambulatoria. Resultados: La edad promedio fue de 53,2 años. 69,56 por ciento eran mujeres y 30,4 por ciento hombres. El menor recuento plaquetario fue de 105.000 x mm3. No se observaron complicaciones mayores, y las menores ocurrieron en 91 por ciento en el período de observación y el 61 por ciento de ellas en las primeras dos horas. Conclusiones: Para la realización de biopsia hepática en pacientes ambulatorios, un período de observación hospitalaria de 5 horas parece ser suficiente, dado que en éste se pesquisan la mayoría de las complicaciones de una población bien seleccionada, permitiendo plantear la realización de este procedimiento en forma ambulatoria en nuestro país.

Hepatic biopsy is important in the diagnosis of hepatic diseases. The potential complications may appear in the first hours after the procedure, therefore it is necessary to consider a period of 4-6 hours of observation. Objectives: To present our protocol and 23 cases of percutaneous liver biopsies in ambulatory regime. Materials and Methods: Review of case histories (case report forms) of the patients that were subjected to the procedure. Demographic variables, laboratory tests, reasons for biopsy, and major and minor complications during hospitalization and ambulatory phase. Results: Average age was 53.2 years; of these, 69.56 percent were women and 30.4 percent men. The lowest plaquetary count was 105.000 x mm3. No major complications were observed, and some of them occurred in a 91 percent during the observation period, and 61 percent during the first two hours. Conclusions: A period of clinical observation of 5 hours seems enough for a biopsy in ambulatory patients. It is during this period when the majority of complications are observed in a well-selected population. This supports the idea of performing this procedure in an ambulatory or outpatient basis on our country.

Tumor del cuerpo carotídeo: A propósito de 10 casos tratados / Carotid body tumors: Report of ten cases

Background: Carotid body tumors arise from a cellular conglomerate located at the carotid bifurcation. Progressive enlargement can involve the arterial wall and neighbor cranial nerves. Aim: To report a series of 10 patients treated of carotid body tumors and review national experience. Patients and methods: Between 1984 and 2006, we operated 8 women and 2 men, aged 19 to 75 years, with this type of tumor. Results: The most common cause for consultation was a cervical mass in 90 percent, with a mean evolution lapse of 13.2 months (range 3 to 126). In all cases, diagnosis was confirmed with angiographic imaging and histopathology. Ten tumors were surgically removed with no complications. Eighty percent of tumors were in stage II according to Shamblin classification. During long term follow up all patients have remained asymptomatic. Only 31 carotid body tumors have been reported in Chilean medical literature during a 43 year period. Conclusions: Paragangliomas of the carotid body can be diagnosed in clinical grounds, requiring vascular imaging. These infrequent lesions are generally benign, early surgical removal by surgeons with vascular expertise avoids neurological and or vascular complications.

Surveillance of leptospiral carriage by feral rats in Barbados

Rodents, particularly rats, are widely held to be the source of most human cases of leptospirosis. Feral rats were trapped at sites throughout Barbados during two six month surveys: from October to March 1986/87 and from October to March 1994/95. During the first survey, 63 rats were trapped, of which 26 (41) were identified as Rattus rattus and 37 (59) as Rattus norvegicus. In the second study, 100 rats were trapped, of which R. rattus comprised 24(24) and R. norvegicus 76(76). Cultures of blood, urine and kidney were made in EMJH medium. Leptospires were isolated from 12/63 (19) and from 16/100 (16) of the rats during 1986/87 and 1994/95, respectively; 27/28 isolates were recovered from the kidneys or urine or both, while only one isolate was recovered from the blood. During the first study, isolates were identified as serovars copenhageni (11) and arborea (1), while in the second study, serovars copenhageni (9), arborea (5) and bim (1) were identified; one isolate was lost before it could be identified. In the first study, antibodies were detected by microscopic agglutination at a titre of > or = 100 in 26/62 (42) of rats tested, while in the second survey, 5/100 (5) of rats had similar titres. In two surveys, conducted eight years apart, we confirmed that rats in Barbados are commonly infected with leptospires, and that viable organisms are found in the kidneys and urine, evidence of chronic infection and thus excretion of leptospires in rodent urine. Moreover, the predominant serovar isolated was copenhageni, of which Rattus spp. are the worldwide reservoir. There was little evidence that rats act as a reservoir for the serovar bim, the most common cause of human leptospirosis in Barbados.

Mesostigmatid mites associated with the house shrew, Suncus murinus, in Rangoon, Burma.

In Rangoon and vicinity Suncus murinus comprises almost 20% of the small mammal population with almost equal load of mesostigmatid mites compared to murine rodents. Suncus murinus was infected by four species of laelapids, out of which L. myonyssognathus seems to infest more on urban S. murinus. The infestation of the free living Androlaelaps or Hypoaspis species is higher on the rural shrews while the Cheyletus species is higher on the urban than the rural S. murinus.

Species distribution of trombiculid mites on murine rodents in Rangoon, Burma.

Ectoparasite collections from over 12,000 commensal rodents and shrews in Rangoon were examined. Rattus rattus, R. norvegicus, R. exulans and Bandicota bengalensis were found to host 12 species of trombiculid mites. Ascoschoengastia indica was the most abundant trombiculid found representing 84% of the total sample of 15,000 chiggers. This species (A. indica) may be of considerable significance as a vector of murine typhus.

Seasonal variations and relative abundance of mesostigmatid mites collected from Bandicota bengalensis and Rattus species in Rangoon, Burma.

Examination of 536 female mesostigmatid mites of 177 samples collected from Bandicota bengalensis in Rangoon, Burma revealed 6 species present: Laelaps echidnina, L. nuttalli, L. myonyssognathus, Laelaps sp. A and B of Allred, 1970, and Liponyssoides muris, all of which were elsewhere reported from Rattus spp. in Rangoon. Analysis of variation in abundance by season found no significant differences except for Liponyssoides muris which was most common in the hot dry season, March through May.

Mesostigmatid mites associated with three Rattus species collected in Rangoon, Burma.

Examination of 909 female mesostigmatid mites of 247 samples collected from Rattus rattus, R. norvegicus and R. exulans in Rangoon, Burma found 8 species present: Laelaps echidnina, L. nuttalli, L. myonyssognathus, Laelaps sp. A and B of Allred 1970, L. wittei, Liponyssoides muris and Ornithonyssus bacoti.