1
|
Graf S, Valero MJ, Craiem D, Torrado J, Farro I, Zócalo Y, Valls G, Bía D, Armentano RL. Temporal pattern of pulse wave velocity during brachial hyperemia reactivity. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/313/1/012009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
2
|
Torrado J, Bia D, Zócalo Y, Farro I, Farro F, Valero M, Armentano RL. Carotid-radial pulse wave velocity as a discriminator of intrinsic wall alterations during evaluation of endothelial function by flow-mediated dilatation. 2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society 2011; 2011:6458-6461. [PMID: 22255817 DOI: 10.1109/iembs.2011.6091594] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
UNLABELLED Flow-mediated dilatation (FMD) is the most accepted technique for the evaluation of endothelial function. However, it has been show a great inter-subject variability limiting its clinical use. Carotid-radial pulse wave velocity (PWVcr) was proposed as an alternative tool for the evaluation of endothelial function. At the present, there is no doubt that PWVcr reduces its values in response to reactive hyperemia test (RHT) in healthy subjects. AIMS a) to determine simultaneously the temporal profile of FMD, PWVcr and shear rate in response to RHT and b) to describe and analyze how subjects "FMD responders" or "non-responders" behave regards to PWVcr changes. METHODS 34 Healthy young subjects were included. The PWVcr (strain gauge mechanotransducers), brachial diameter (B-Mode ultrasound and blood flow velocity (Doppler ultrasound) were measured before (baseline) the cuff was inflated and after its deflation (5 minutes). 10(th) percentiles FMD and PWVcr changes in the population were used for the definition of the subjects ("responders and non-responders"). RESULTS Changes in PWVcr, brachial arterial diameter and shear rate were evidenced after the cuff release (p<0.05). There were differences in the PWV and FMD temporal profiles. Within "FMD responders" there were "PWV responders and non-responders". CONCLUSION Assessing RHT-related changes in PWVcr in the context of a FMD evaluation, could be useful as a discriminator of intrinsic wall alterations giving additional information of vascular dynamics.
Collapse
Affiliation(s)
- J Torrado
- CUiiDARTE and the Physiology Department, School of Medicine, Universidad de la República, General Flores 2125, PC:11800 Montevideo, Uruguay
| | | | | | | | | | | | | |
Collapse
|
3
|
Torrado J, Farro I, Bia D, Zocalo Y, Valls G, Valero M, Salvucci F, Armentano RL. Levels and rates of change in carotid-radial pulse wave velocity associated with reactive hyperaemia: Analysis of the dependence on transient ischemia length. Annu Int Conf IEEE Eng Med Biol Soc 2010; 2010:2865-8. [PMID: 21095974 DOI: 10.1109/iembs.2010.5626355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED The analysis of carotid-radial pulse wave velocity (PWVcr) changes in response to forearm transient ischemia (TI) has been proposed as an alternative approach to evaluate endothelial function. Consider flow mediated dilatation tests, PWVcr changes are characterized after 5 minutes of TI. It is unknown if lower TI times could be used and if different TI times would result in different PWVcr responses (levels and/or kinetics). OBJECTIVE To determine PWVcr changes associated with the reactive hyperemia in response to 1, 3 or 5 minutes of forearm TI. METHODS We measured left PWVcr change using mechano-transducers in healthy volunteers (22 ± 2 years old) before (basal) and after 1 (n=14), 3 (n=14) and 5 (n=15) minutes of TI (forearm cuff inflation), respectively. The change of level and rate in PWVcr were recorded at 15, 30, 45 and 60 seconds after cuff release. Right brachial pressure was measured. RESULTS There were no changes in heart rate or blood pressure during the studies. Regardless of the occlusion length, TI resulted in PWVcr reduction (p < 0.05). The groups showed similar maximum PWVcr reduction. However, there were differences in the immediate PWVcr changes (-4.9 ± 0.2%; -6.8 ± 0.3% and -8.3 ± 0.5% for 1, 3 and 5 minutes of TI, respectively) (p < 0.05). Then, the immediate rate of PWVcr change differed (p < 0.05) among the different ischemia times considered. Thereafter, the differences diminished and a minute after TI the groups showed similar levels and mean rate of PWVcr reduction. CONCLUSION Similar maximum PWVcr responses can be obtained after 1, 3, or 5 minutes of TI. Different TI times resulted in dissimilar immediate, but not later, PWVcr changes.
Collapse
Affiliation(s)
- J Torrado
- Physiology Department, School of Medicine, Universidad de la Repüblica (CUiiDARTE), General Flores 2125, PC:11800, Montevideo, Uruguay
| | | | | | | | | | | | | | | |
Collapse
|
4
|
Ojeda E, Cosme A, Lapaza J, Torrado J, Arruabarrena I, Alzate L. Whipple's disease in Spain: a clinical review of 91 patients diagnosed between 1947 and 2001. Rev Esp Enferm Dig 2010; 102:108-23. [PMID: 20361847 DOI: 10.4321/s1130-01082010000200006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND To determine the epidemiological, clinical, diagnostic and therapeutic characteristics of Whipple s disease in Spain. PATIENTS AND METHOD Cases of Whipple s disease reported in the Spanish literature between 1947 and 2001 which meet histological or PCR criteria are reviewed. RESULTS 91 cases were included, 87.5% of which were male. The maximum incidence was between 40 and 60 years of age (68%). There was no family clustering or susceptibility by profession or surroundings. The most common symptoms and signs were: weight loss (80%), diarrhoea (63%), adenopathies (35%), skin problems (32%), abdominal pain (27%), fever (23%), joint problems (20%) and neurological problems (16%). Arthralgias, diarrhoea and fever were noted prior to diagnosis in 58, 18 and 13% of patients, respectively. Diagnosis was histological in all cases except two, which were diagnosed by PCR. Intestinal biopsy was positive in 94%. Adenopathic biopsies (mesenteric or peripheral) were suggestive in 13% of cases, and treatment was effective in 89%. There were nine relapses, four of which were neurological, although all occurred before the introduction of cotrimoxazole. CONCLUSIONS Whipple s disease is not uncommon, although it requires a high degree of suspicion to be diagnosed in the absence of digestive symptoms. The most common and most sensitive diagnostic method is duodenal biopsy. PCR is beginning to be introduced to confirm the diagnosis and as a therapeutic control. Initial antibiotic treatment with drugs that cross the blood-brain barrier, such as cotrimoxazole and ceftriaxone, is key to achieving a cure and avoiding relapses.
Collapse
Affiliation(s)
- E Ojeda
- Department of Internal Medicine, Donostia Hospital, San Sebastián, Guipúzcoa, Spain
| | | | | | | | | | | |
Collapse
|
5
|
Affiliation(s)
- S. Rueda Polo
- a Dpto Farmacia y Tecnologia Farmaceutica Facultad de Farmacia , U. C. M. Av. Complutense s/n 28040, Madrid, Spain
| | - J. Torrado
- a Dpto Farmacia y Tecnologia Farmaceutica Facultad de Farmacia , U. C. M. Av. Complutense s/n 28040, Madrid, Spain
| | - F. Bolas
- a Dpto Farmacia y Tecnologia Farmaceutica Facultad de Farmacia , U. C. M. Av. Complutense s/n 28040, Madrid, Spain
| | - S. Torrado
- a Dpto Farmacia y Tecnologia Farmaceutica Facultad de Farmacia , U. C. M. Av. Complutense s/n 28040, Madrid, Spain
| |
Collapse
|
6
|
Cosme A, Montalvo I, Sánchez J, Ojeda E, Torrado J, Zapata E, Bujanda L, Gutiérrez A, Arenas I. Glucogenosis tipo III asociada a carcinoma hepatocelular. Gastroenterología y Hepatología 2005; 28:622-5. [PMID: 16373012 DOI: 10.1016/s0210-5705(05)71526-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Type III glycogen storage disease is a hereditary disorder with autosomal recessive transmission. It is characterized by accumulation of abnormal glycogen in the liver and, in 80% of patients, in muscle. The liver can also show fibrosis and sometimes cirrhosis. Until 2000, 9 cases of cirrhosis had been published, 3 of which showed associated hepatocarcinoma. We present the case of a 31-year-old woman, diagnosed in childhood with type III glycogen storage disease, who 30 years after onset developed a hepatocellular carcinoma with portal thrombosis in the context of advanced cirrhosis. This is the first case to be reported in the Spanish literature of type III glycogen storage disease associated with hepatocellular carcinoma.
Collapse
Affiliation(s)
- A Cosme
- Servicio de Aparato Digestivo, Hospital Infantil La Paz, Madrid, Spain
| | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Carro E, Trejo JL, Gerber A, Loetscher H, Torrado J, Metzger F, Torres-Aleman I. Therapeutic actions of insulin-like growth factor I on APP/PS2 mice with severe brain amyloidosis. Neurobiol Aging 2005; 27:1250-7. [PMID: 16183170 DOI: 10.1016/j.neurobiolaging.2005.06.015] [Citation(s) in RCA: 108] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2004] [Revised: 06/22/2005] [Accepted: 06/30/2005] [Indexed: 10/25/2022]
Abstract
Transgenic mice expressing mutant forms of both amyloid-beta (Abeta) precursor protein (APP) and presenilin (PS) 2 develop severe brain amyloidosis and cognitive deficits, two pathological hallmarks of Alzheimer's disease (AD). One-year-old APP/PS2 mice with high brain levels of Abeta and abundant Abeta plaques show disturbances in spatial learning and memory. Treatment of these deteriorated mice with a systemic slow-release formulation of insulin-like growth factor I (IGF-I) significantly ameliorated AD-like disturbances. Thus, IGF-I enhanced cognitive performance, decreased brain Abeta load, increased the levels of synaptic proteins, and reduced astrogliosis associated to Abeta plaques. The beneficial effects of IGF-I were associated to a significant increase in brain Abeta complexed to protein carriers such as albumin, apolipoprotein J or transthyretin. Since levels of APP were not modified after IGF-I therapy, and in vitro data showed that IGF-I increases the transport of Abeta/carrier protein complexes through the choroid plexus barrier, it seems that IGF-I favors elimination of Abeta from the brain, supporting a therapeutic use of this growth factor in AD.
Collapse
Affiliation(s)
- E Carro
- Laboratory of Neuroendocrinology, Cajal Institute, CSIC, Avda. Dr. Arce 37, 28002 Madrid. Spain
| | | | | | | | | | | | | |
Collapse
|
8
|
Daniel-Mwuambete K, Ponce-Gordo F, Torrado J, Torrado S, Cuesta-Bandera C. Effect of two formulations of benzimidazole carbamates on the viability of cysts of Echinococcus granulosus in vivo. Parasite 2004; 10:371-3. [PMID: 14710635 DOI: 10.1051/parasite/2003104371] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Two different preparations, solution and suspension, of three benzimidazole carbamate drugs, mebendazole, albendazole and ricobendazole, were compared by analyzing their in vivo activity against Echinococcus granulosus cysts in a mouse model. Polyvinylpyrrolidone was used for the elaboration of drug solutions and these formulations manifested better results in terms of reduction of number of viable hydatid cysts in mice than the reference drug suspensions. The effect was more prominent on mebendazole-treated mice, at doses of 25-50 mg/kg. There was a correlation between ED50 and pharmacokinetical parameters of AUC0-infinity and Cmax, showing that a significant improvement on solubility affects the in vivo activity of these drugs.
Collapse
Affiliation(s)
- K Daniel-Mwuambete
- Departamento de Parasitología, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | | | | | | | | |
Collapse
|
9
|
Mundo-Sagardía J, Altieri P, Banch H, González R, Escobales N, Crespo M, Rodríguez-Orengo J, Cardona F, Torrado J. [Role of endothelin I and angiotensin II in type 2 diabetics with coronary disease]. Bol Asoc Med P R 2003; 95:45-50. [PMID: 15008361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- J Mundo-Sagardía
- Departmento de Medicina, Fisiología, Bioquímica, Universidad de Puerto Rico
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Cosme A, Ojeda E, Torrado J, Carrera A, Castiella A, Zapata E. [Liver alterations due to alpha-1-antitrypsin deficiency in adults. Study of 5 patients and analysis of the cases reported in the Spanish literature]. Gastroenterol Hepatol 2003; 26:251-6. [PMID: 12681119 DOI: 10.1016/s0210-5705(03)70349-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND To determine the epidemiological characteristics of liver disease secondary to alpha-1-antitrypsin deficiency and associated processes in the Spanish population. PATIENTS AND METHOD We reviewed the medical records of adults with liver abnormalities due to alpha-1-antitrypsin deficiency diagnosed between 1981 and 2001 in the Hospital Donosti in San Sebastian (Spain) as well as the cases published in the literature before 1999. Diagnosis was based on clinical and biochemical data, imaging tests and/or liver biopsy and/or necroscopy together with serum values of alpha-1-antitrypsin and phenotyping. RESULTS Fifty cases of liver disease secondary to alpha-1-antitrypsin deficiency (45 from the literature and 5 from our hospital) were included. There were 34 men and 16 women aged between 18 and 77 years. Fifteen (30%) had relatives with alpha-1-antitrypsin deficiency. Hepatitis and/or neonatal cholestasis were confirmed in 4 and alcoholism was confirmed in 17. Of the series, 8 (16%) had portal fibrosis and 29 (58%) had cirrhosis. Cirrhosis was mainly macro-micronodular and was decompensated in 48% of the cases. Of the patients with cirrhosis, 12 were ZZ homozygotes and 12 were heterozygotes, mainly MZ and SZ. The most frequent associated process was respiratory disease (emphysema and/or chronic bronchitis) in 25 of the 50 cases (50%). CONCLUSIONS The presence of cirrhosis in alpha-1-antitrypsin deficiency is low, approximately 2.2/100,000 for ZZ homozygotes. Age at diagnosis of cirrhosis or fibrosis was more than 50 years. The male-to-female ratio was 2 to 1. In one-third of the patients alcohol could have been a coadjuvant or aggravating factor in the liver disease. No differences were found between homo- and heterozygote phenotypes in patients with cirrhosis. The most frequently associated processes were respiratory diseases due to alpha-1-antitrypsin deficiency.
Collapse
Affiliation(s)
- A Cosme
- Servicio de Aparato Digestivo. Hospital Donosti. San Sebastián. Guipúzcoa. Spain
| | | | | | | | | | | |
Collapse
|
11
|
Cosme A, Ojeda E, Torrado J, Carrera A, Castiella A, Zapata E. [Liver alterations due to alpha-1-antitrypsin deficiency in adults. Study of 5 patients and analysis of the cases reported in the Spanish literature]. Gastroenterol Hepatol 2003. [PMID: 12681119 DOI: 10.1157/13045199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND To determine the epidemiological characteristics of liver disease secondary to alpha-1-antitrypsin deficiency and associated processes in the Spanish population. PATIENTS AND METHOD We reviewed the medical records of adults with liver abnormalities due to alpha-1-antitrypsin deficiency diagnosed between 1981 and 2001 in the Hospital Donosti in San Sebastian (Spain) as well as the cases published in the literature before 1999. Diagnosis was based on clinical and biochemical data, imaging tests and/or liver biopsy and/or necroscopy together with serum values of alpha-1-antitrypsin and phenotyping. RESULTS Fifty cases of liver disease secondary to alpha-1-antitrypsin deficiency (45 from the literature and 5 from our hospital) were included. There were 34 men and 16 women aged between 18 and 77 years. Fifteen (30%) had relatives with alpha-1-antitrypsin deficiency. Hepatitis and/or neonatal cholestasis were confirmed in 4 and alcoholism was confirmed in 17. Of the series, 8 (16%) had portal fibrosis and 29 (58%) had cirrhosis. Cirrhosis was mainly macro-micronodular and was decompensated in 48% of the cases. Of the patients with cirrhosis, 12 were ZZ homozygotes and 12 were heterozygotes, mainly MZ and SZ. The most frequent associated process was respiratory disease (emphysema and/or chronic bronchitis) in 25 of the 50 cases (50%). CONCLUSIONS The presence of cirrhosis in alpha-1-antitrypsin deficiency is low, approximately 2.2/100,000 for ZZ homozygotes. Age at diagnosis of cirrhosis or fibrosis was more than 50 years. The male-to-female ratio was 2 to 1. In one-third of the patients alcohol could have been a coadjuvant or aggravating factor in the liver disease. No differences were found between homo- and heterozygote phenotypes in patients with cirrhosis. The most frequently associated processes were respiratory diseases due to alpha-1-antitrypsin deficiency.
Collapse
Affiliation(s)
- A Cosme
- Servicio de Aparato Digestivo. Hospital Donosti. San Sebastián. Guipúzcoa. Spain
| | | | | | | | | | | |
Collapse
|
12
|
Abstract
Insulin-like growth factor-I (IGF-I) is a naturally occurring single chain polypeptide of 7649 Da that is produced primarily in the liver. The metabolic activities of IGF-I are similar to those of insulin and its effects on growth, development, regeneration and metabolism have been widely studied. Indeed, IGF-I is currently being used clinically for the treatment of growth related disorders and its therapeutic value is also being evaluated in diabetes, IGF-I-induced neuroprotection, and in promoting bone healing. However, like many other peptides, IGF-I has a short biological half-life and is rapidly removed from circulation following systemic administration. In the vascular system, this is normally compensated for by the association of IGF-I with IGF-binding proteins (IGFBPs), that also appear to regulate the activities of IGF-I. Here, we describe the biopharmaceutical properties of different parenteral formulations of IGF-I. The pharmaceutical characteristics of conventional formulations such as aqueous IGF-I solutions are compare with new controlled release formulations such as multivesicular liposomes, osmotic minipumps, and poly (DL-lactic-co-glycolic) acid (PLGA) microspheres.
Collapse
Affiliation(s)
- J Torrado
- Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Rámon y Cajal, Madrid, Spain. torrado
| | | |
Collapse
|
13
|
Rodríguez R, Zapata E, Esandi F, García-Bengoechea M, Torrado J, Castiella A. [Primary sclerosing cholangitis as a cause of hypertransaminasemia]. Gastroenterol Hepatol 2002; 25:576-7. [PMID: 12435312 DOI: 10.1016/s0210-5705(02)70317-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
14
|
Múgica F, Sesplugues R, Torrado J, Aranzadi MJ, Pérez Cámara B, Recasens M, Muñagorri A. [Tuberculosis, another cause of generalized lymphadenopathies in celiac disease]. Gastroenterol Hepatol 2002; 25:432-3. [PMID: 12069707 DOI: 10.1016/s0210-5705(02)70278-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
15
|
Torrado J, Santisteban A, Ruiz-Ederra J. Genetic susceptibility to gastric cancer. Hepatogastroenterology 2001; 48:1544-7. [PMID: 11813568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Although the incidence and mortality rates of gastric cancer not located in the cardia have been decreasing in the last decades, it still remains the second most common cancer in the world. On the other hand, adenocarcinoma of the cardia and gastroesophageal junction has been rapidly rising in many populations over the past two decades.
Collapse
Affiliation(s)
- J Torrado
- Hospital de Aranzazu, Department of Pathology, Paseo Dr. Beguiristain s/n, 20080 San Sebastian, Spain.
| | | | | |
Collapse
|
16
|
Cosme A, Ojeda E, Cilla G, Torrado J, Alzate L, Beristain X, Orive V, Arenas J. [Fasciola hepatica. study of a series of 37 patients]. Gastroenterol Hepatol 2001; 24:375-80. [PMID: 11674955 DOI: 10.1016/s0210-5705(01)70204-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND To analyze the clinical, bacteriologic, diagnostic and therapeutic features of patients with Fasciola hepatica (FH) in our hospital. PATIENTS AND METHOD We reviewed all the patients with a diagnosis of fascioliasis from 1975 to 1999 in the Aranzazu Hospital in San Sebastián (Guipúzcoa, Spain). Diagnosis was made by direct vision of adult parasites during surgery and/or the presence of ova in stool examinations and/or positive serologic tests in patients with symptoms consistent with parasitosis. RESULTS Thirty-seven patients were included (23 men and 14 women), aged 19 to 71 years. Ingestion of watercress was confirmed in 27. Seven cases occurred as part of familiar outbreaks. Thirty-two were in the liver invasive stage and in 5 the biliary tree was invaded. The most common features were eosinophilia (91.8%), malaise and weight loss (75.6%), elevated alkaline phosphatase (74.2%), and abdominal pain (72.9%). Adult worms in the biliary ducts were observed in 3 patients and ova in feces were observed in 6. In 13 of 27 patients indirect hemagglutination test was ( 1/1,280. Data significant to confirmation of liver involvement were provided by laparoscopy in 12 of 13 patients and by imaging techniques in 13 of 31 patients. Four patients had cholelithiasis and of these, 2 also showed adult parasites in the common bile duct. Three patients underwent surgery. Therapy with dehydroemetine and/or bithionol was followed by complete remission in 30 patients, although 6 required repeat treatment cycles. The remaining 4 patients were cured by praziquantel. CONCLUSIONS Most of the patients in these series reported consumption of watercress and all patients showed the symptoms typical of parasite disease. Imaging techniques proved to be of great utility in confirming the diagnosis of hepato-biliary disease. In most of the patients therapy with dehydroemetine and/or bithionol (in one or several cycles) was followed by complete remission.
Collapse
Affiliation(s)
- A Cosme
- Servicio de Digestivo, Hospital de Aránzazu, San Sebastián, Guipúzcoa
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Montalvo II, López P, Gil I, Cosme A, Torrado J, Arenas JI. [Hyperamylasemia due to macroamylasemia as the first manifestation of celiac disease]. Gastroenterol Hepatol 2001; 24:369. [PMID: 11481079 DOI: 10.1016/s0210-5705(01)70200-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
18
|
García-Rodriguez JJ, Torrado J, Bolás F. Improving bioavailability and anthelmintic activity of albendazole by preparing albendazole-cyclodextrin complexes. Parasite 2001; 8:S188-90. [PMID: 11484352 DOI: 10.1051/parasite/200108s2188] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The bioavailability and anthelmintic activity of albendazole-cyclodextrin complexes (ABZ-CDC) compared to albendazole suspensions in carboxymethylcellulose (ABZ-CMC) was assessed in a mouse model for Trichinella infections. Swiss CD-1 mice experimentally infected with T. spiralis were treated with both formulations against enteral (adult worms) and parenteral (migrating and encysted larvae). Oral bioavailability was assessed in age matched mice treated with 50 mg/kg of both formulations. The anthelmintic effects and plasma concentration of the active metabolite albendazole-sulphoxide (ABZSO) enantiomer (-) were significantly increased following administration of ABZ-CDC in relation to ABZ-CMC.
Collapse
Affiliation(s)
- J J García-Rodriguez
- Departmento de Parasitología, Facultad de Farmacia, Universidad Complutense, Spain
| | | | | |
Collapse
|
19
|
Cosme A, Ojeda E, Bujanda L, Torrado J, Barrio J. [Krukenberg tumor secondary to gastric carcinoma in a woman in her eighth month of pregnancy]. Gastroenterol Hepatol 2001; 24:63-5. [PMID: 11247291 DOI: 10.1016/s0210-5705(01)78987-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The association of gastric cancer and pregnancy is rare. The cases reported by non-Japanese authors are unusual. Tumors tend to be in advanced stage when diagnosed since the symptoms of gastric cancer are easily presumed to be secondary to those of normal pregnancy. We report the case of a 43-year-old female with gastric carcinoma presenting as a Krukenberg's tumor in the eighth month of gestation. A healthy child was born and after delivery, partial gastrectomy was performed and adjuvant chemotherapy was administered. The patient died 12 months after diagnosis.
Collapse
Affiliation(s)
- A Cosme
- Servicio de Digestivo, Hospital Aránzazu, San Sebastián
| | | | | | | | | |
Collapse
|
20
|
Barrio J, Castiella A, García-Bengoechea M, Alzate LF, Torrado J, Cosme A, Arenas JI. [Recurrent benign intrahepatic cholestasis]. Rev Esp Enferm Dig 2001; 93:56-7. [PMID: 11488099 DOI: pmid/11488099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
21
|
López-Ferrer A, de Bolós C, Barranco C, Garrido M, Isern J, Carlstedt I, Reis CA, Torrado J, Real FX. Role of fucosyltransferases in the association between apomucin and Lewis antigen expression in normal and malignant gastric epithelium. Gut 2000; 47:349-56. [PMID: 10940270 PMCID: PMC1728024 DOI: 10.1136/gut.47.3.349] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND In normal gastric epithelium, MUC5AC is detected in superficial epithelium associated with Lewis type 1 antigens and MUC6 is detected in antral glands with Lewis type 2. Therefore, the stomach constitutes an excellent model to examine the role of glycosyltransferases in determining the specificity of apomucin glycosylation. AIMS To determine the molecular basis of this association and to examine changes in expression of gastric and intestinal apomucins and their association with Lewis antigens during the gastric carcinogenesis process. METHODS Fucosyltransferase (FUT1, FUT2, FUT3) and mucin (MUC5AC, MUC6) transcripts were detected using reverse transcription-polymerase chain reaction. Apomucin (MUC2, MUC4, MUC5AC, MUC6) and Lewis antigen (types 1 and 2) expression were analysed using single and double immunohistochemistry and in situ hybridisation. RESULTS In the normal stomach, FUT1 is exclusively detected associated with MUC6; FUT2 is only detected when MUC5AC is present. This co-regulation is lost in gastric tumours, as is differential expression of MUC5AC and MUC6 in normal gastric epithelial cells. In gastric tumours, especially those with the intestinal phenotype, MUC2 and MUC4 genes are upregulated, and gastric-type and intestinal-type mucins are coexpressed. These changes are early events in the gastric carcinogenesis process, as they are detected in intestinal metaplasia. CONCLUSIONS The glycosylation pattern found in normal gastric epithelium is dictated by the specific set of fucosyltranferases expressed by the cells rather than by the apomucin sequence. The development of intestinal metaplasia and gastric cancer is associated with the appearance of cellular phenotypes that are absent from normal epithelium.
Collapse
Affiliation(s)
- A López-Ferrer
- Unitat de Biologia Cel.lular i Molecular, Institut Municipal d'Investigació Mèdica, Universitat Pompeu Fabra, Barcelona, Spain
| | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Torrado J, Plummer M, Vivas J, Garay J, Lopez G, Peraza S, Carillo E, Oliver W, Muñoz N. Lewis antigen alterations in a population at high risk of stomach cancer. Cancer Epidemiol Biomarkers Prev 2000; 9:671-4. [PMID: 10919736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
Anomalous Lewis(a) antigen and sulfomucin expression are considered as markers of progression in precursor lesions of gastric cancer. Additionally, Lewis antigen and secretor phenotype have been related to Helicobacter pylori infection and gastric epithelial damage. The two objectives of this study were to correlate Lewis antigen alterations with histochemical changes and to explore the relationship between Lewis and secretor phenotypes and gastric epithelial damage related to H. pylori infection. The study subjects were selected from a chemoprevention trial in Tachira State, Venezuela, an area with a high risk of gastric cancer. Anomalous Lewis(a) antigen expression in Lewis (a-b+) phenotype individuals was closely related to the severity of the histological lesions, especially to dysplasia and type III intestinal metaplasia lesions. A weak relationship was observed between nonsecretor individuals and more advanced lesions of IM, but this association was not statistically significant. There was no relationship between secretor phenotype and H. pylori status, atrophy, regenerative activity, erosion, or ulcer.
Collapse
Affiliation(s)
- J Torrado
- Nuestra Señora de Aránzazu Hospital, University of the Basque Country, San Sebastián, Spain
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Torrado J, Leal A. [Helicobacter pylori and gastric adenocarcinoma: definitely related?]. Gastroenterol Hepatol 1998; 21 Suppl 1:35-9. [PMID: 9549201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- J Torrado
- Servicio de Anatomía Patológica, Hospital de Aránzazu, San Sebastián
| | | |
Collapse
|
24
|
Torrado J, Ruiz B, Garay J, Asenjo JL, Tovar JA, Cosme A, Correa P. Blood-group phenotypes, sulfomucins, and Helicobacter pylori in Barrett's esophagus. Am J Surg Pathol 1997; 21:1023-9. [PMID: 9298878 DOI: 10.1097/00000478-199709000-00006] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Barrett's esophagus, morphologically analogous to gastric intestinal metaplasia, often precedes the development of esophageal adenocarcinoma. In the stomach, expression of sulfomucins and aberrant Lewis(a) (Le[a]) antigen is an excellent predictor of premalignant progression, and Helicobacter pylori infection is a crucial determinant for the development of atrophy, metaplasia, and adenocarcinoma. In the esophagus, the significance of sulfomucin expression is controversial, the aberrant expression of Le(a) has not been explored, and the role of H pylori in the evolution of preneoplastic conditions is unknown. We investigated in 155 patients referred for endoscopy the association of Barrett's esophagus with expression of sulfomucins, Lewis, secretor, and ABO phenotypes, and H pylori infection. We report a subtype of intestinal metaplasia, present in all patients with esophageal adenocarcinoma, similar to gastric intestinal metaplasia of colonic type (type III or incomplete), that expresses sulfomucins and aberrant Le(a) in goblet and columnar cells. Lewis(a+b-), nonsecretor and blood group A phenotypes, were all positively associated with esophageal adenocarcinoma, suggesting a genetic susceptibility. H pylori infection was detected in 75% of patients with esophageal adenocarcinoma.
Collapse
Affiliation(s)
- J Torrado
- Department of Pathology, Hospital Aránzazu, San Sebastián, Spain
| | | | | | | | | | | | | |
Collapse
|
25
|
Torrado J, Ruiz B, Garay J, Cosme A, Arenas JI, Bravo JC, Fontham E, Correa P. Lewis, secretor, and ABO phenotypes, and sulfomucin expression in gastric intestinal metaplasia. Cancer Epidemiol Biomarkers Prev 1997; 6:287-9. [PMID: 9107434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The closely interrelated Lewis, secretor, and ABO phenotypes have long been linked to the risk of peptic ulcers and gastric cancer and may modulate the interaction between Helicobacter pylori and the gastric surface epithelium. We explored the association between the expression of sulfomucins in gastric intestinal metaplasia, a known marker of preneoplastic progression, and the expression of Lewis, secretor, and ABO phenotypes, in 523 subjects from Nariño, Colombia, and 856 subjects from northern Spain. In both study populations, Lewis (a+/b-) and nonsecretor phenotypes showed a significant positive association with the expression of sulfomucins (odds ratios, 2.4 and 2.6, respectively).
Collapse
Affiliation(s)
- J Torrado
- Hospital Aránzazu, San Sebastián, Spain
| | | | | | | | | | | | | | | |
Collapse
|
26
|
Cosme A, Bujanda L, Ojeda E, Berdejo L, Galvany A, Castiella A, Torrado J, Arenas JI. [Krukenberg's tumor secondary to gastric neoplasms]. Rev Esp Enferm Dig 1997; 89:230-1. [PMID: 9198486 DOI: pmid/9198486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
27
|
Cosme A, Bujanda L, Torrado J, Berdejo L, Ojeda E, Castiella A, Montalvo I, Gil I. [Primary melanoma of the esophagus. 2 new cases]. Rev Esp Enferm Dig 1996; 88:705-8. [PMID: 8983311 DOI: pmid/8983311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Primary melanoma of the esophagus is rare. Until 1990, eight cases had been reported in Spain. We report two patients, 50 and 61-year-old men. Melanomas were located in the distal esophagus and were polypoid (5-6 cm), pediculated and pigmented. Endoscopic biopsy was diagnostic in both cases. Fontana staining technique and monoclonal HMB-45 and S-100 antibodies were used. A revision of clinical characteristics, treatment and survival of the patients with primary melanoma of the esophagus in our country is made.
Collapse
Affiliation(s)
- A Cosme
- Servicio de Digestivo, Hospital Nuestra Señora de Aránzazu, San Sebastián
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Affiliation(s)
- A Castiella
- Gastroenterology Service, Nuestra Señora de Aranzazu Hospital, University of the Basque Country, San Sebastian, Spain
| | | | | | | | | | | | | |
Collapse
|
29
|
Arana J, Suñol M, Legorburu J, Aldazábal P, Torrado J, Barriola M. [Intestinal autograft: creation of an isolated intestinal segment by entero-enteropexy]. Cir Pediatr 1996; 9:69-72. [PMID: 8962816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
An isolated bowell segment (IBS) was created in rats by a two-stage procedure. Initial lateral entero-enteropexy between small and colonic bowell was performed. Six weeks later, the small bowell mesentery was divided. After four weeks, the survival animals were killed, the viability of the segment is maintained by developing vascular collateral across the coaptation between both intestinal segments, under light microscopy the willi were atrophied on 50% of animals.
Collapse
Affiliation(s)
- J Arana
- Servicio de Cirugía Pediátrica, Hospital Ntra. Sra. de Aránzazu, San Sebastián
| | | | | | | | | | | |
Collapse
|
30
|
Cosme A, Horcajada JP, Vidaur F, Ojeda E, Torrado J, Arenas JI. Systemic AA amyloidosis induced by oral contraceptive-associated hepatocellular adenoma: a 13-year follow up. Liver 1995; 15:164-7. [PMID: 7674844 DOI: 10.1111/j.1600-0676.1995.tb00665.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report a case of a woman who showed hepatic and renal AA amyloidosis with a liver adenoma associated with the use of oral contraceptives. A nephrotic syndrome secondary to the renal amyloidosis underwent complete remission 7 years after the withdrawal of oral contraceptive therapy. Twenty-nine months after the initial presentation, the patient was admitted with acute upper abdominal pain and abdominal tenderness. The abdominal ultrasound revealed a subphrenic fluid collection, and a presumptive diagnosis of a ruptured hepatic adenoma was made. The liver adenoma diminished from 8 cm to 1 cm over a 13-year follow up after the discontinuance of oral contraceptive therapy.
Collapse
Affiliation(s)
- A Cosme
- Service of Gastroenterology, Hospital Nuestra Señora de Aránzazu, San Sebastián, Spain
| | | | | | | | | | | |
Collapse
|
31
|
Ruiz B, Correa P, Fontham ET, Rood JC, Malcom GT, Torrado J, Perez A, Ramakrishnan T, Hunter FM. Ascorbic acid, Helicobacter pylori and Lewis phenotype among blacks and whites in New Orleans. Cancer Lett 1994; 83:323-9. [PMID: 8080590 DOI: 10.1016/0304-3835(94)90336-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Gastric juice ascorbic acid concentrations were examined in black and white patients. Significantly lower concentrations were found in blacks, in the absence of a significant difference in the plasma concentration of vitamin C between races. Blacks had higher prevalence of Helicobacter pylori infection, higher gastric pH, more severe acute and chronic inflammation of the gastric mucosa and higher frequency of Lewis (a-b-) phenotype. Although most of these factors have been related to low ascorbic acid levels in gastric juice, none of them could account entirely for the difference between races either individually or after joint consideration. These observations may help to explain the high incidence of gastric carcinoma among the black population in southern Louisiana.
Collapse
Affiliation(s)
- B Ruiz
- Department of Pathology, Louisiana State University Medical Center, New Orleans 70012
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Cosme A, Horcajada JP, Ojeda E, González F, Torrado J, Arenas JI. [Esophageal amyloidosis secondary to rheumatoid arthritis simulating achalasia]. Med Clin (Barc) 1994; 102:661-3. [PMID: 8065206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The involvement of the esophagus in amyloidosis secondary to rheumatoid arthritis is rare. The case of a female patient with rheumatoid arthritis and secondary esophageal amyloidosis (type AA) with a radiologic and endoscopic clinical picture compatible with achalasia is presented. In the manometry carried out after two cardiomyotomies, abundant non propulsant tertiary waves were seen, as were two primary waves, intraesophageal pressure higher than that of the gastric fundus and lower hypertensive esophageal sphincter which was completely relaxed on one occasion, resulting in a manometric pattern which was different to that of the other two cases published with the same disease. Endoscopic cardiomyotomies and dilatations were performed. The patient died after 2 years due to post dilatation esophageal perforation. The manometric findings are compared with those of the two previous similar cases with emphasis being made in that the anarchic arrangement of the amyloid in the esophagus produces different unforeseen and uncharacteristic motility patterns. The authors only found in the literature two cases of esophageal amyloidosis secondary to rheumatoid arthritis simulating achalasia.
Collapse
Affiliation(s)
- A Cosme
- Servicio de Digestivo, Hospital de Nuestra Señora de Aránzazu, San Sebastián
| | | | | | | | | | | |
Collapse
|
33
|
Correa P, Ruiz B, Shi TY, Janney A, Sobhan M, Torrado J, Hunter F. Helicobacter pylori and nucleolar organizer regions in the gastric antral mucosa. Am J Clin Pathol 1994; 101:656-60. [PMID: 8178774 DOI: 10.1093/ajcp/101.5.656] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The association of Helicobacter pylori with an increased risk of gastric adenocarcinoma has been documented, but its mechanisms have not been elucidated. This study explored these mechanisms by addressing the relationship between H pylori and the silver-staining nucleolar organizer regions (AgNORs) in the gastric antrum. The number of AgNORs per nucleus has been correlated with proliferative rate and ploidy. The results of gastric biopsies performed before and after treatment for H pylori showed that only patients who cleared the H pylori infection had a significant decrease in the number of AgNORs per nucleus. A positive association between AgNOR counts and the severity of polymorphonuclear infiltrate could be demonstrated in patients who did not clear H pylori infection. The authors concluded that H pylori infection alters the replication cycle of the antral mucosa, inducing hyperproliferation and possibly ploidy abnormalities. Whether these alterations are induced directly by the bacterium or by the acute inflammatory infiltrate remains undecided; the data in this study suggest a possible direct effect of the polymorphonuclear leukocytes.
Collapse
Affiliation(s)
- P Correa
- Department of Pathology, Louisiana State University Medical Center, New Orleans 70112
| | | | | | | | | | | | | |
Collapse
|
34
|
Cosme A, Castiella A, Ojeda E, González F, Torrado J, Arenas JI. [Primary vascular tumors of the liver. Analysis of a series of 20 cases]. Rev Esp Enferm Dig 1993; 83:333-8. [PMID: 8318275 DOI: pmid/8318275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Twenty patients with one or several primary hepatic vascular tumours were studied. Three of them had an angiosarcoma and the other seventeen had twenty nine hepatic haemangiomas. From these seventeen patients, six corresponded to a giant cavernomatous haemangioma. Symptoms, diagnostic methods and treatment of patients with angiosarcoma (3 cases), giant cavernomatous haemangioma (6 cases) and haemangiomas with size less than 4 cm (11 cases) are separately analyzed. We report our series and a critical revision of diagnosis and treatment of these tumours is made.
Collapse
Affiliation(s)
- A Cosme
- Hospital Nuestra Señora de Aránzazu, San Sebastián Guipúzcoa
| | | | | | | | | | | |
Collapse
|
35
|
Eizaguirre I, Tovar JA, Gorostiaga L, Echeverry J, Torrado J. [Barrett++ esophagus in children. Presentation of 12 cases]. Cir Pediatr 1993; 6:66-8. [PMID: 8357725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This paper describes 12 cases of Barrett's oesophagus selected out of a population of 364 refluxing children studied from 1986 to 1990. Their mean age was 14, seven were cared for in special institutions for brain damaged and 2 had been operated upon for oesophageal atresia at birth. Excessive acid exposure was documented in 8/10 patient studied and simultaneous gastric and oesophageal pH-monitoring demonstrated massive duodeno-gastric alkaline reflux in 3. Histological studies revealed that columnar-lined epithelium was of fundic type in 2 cases, of junctional type in 7 and of specialized type in three. Helicobacter pylori was found in the mucosa of 8 patients. The present series confirms that BE should be looked for endoscopically in children with GER and provides further evidence of the long duration of GER disease and the excessive acid-alkaline chemical exposure of the oesophageal lining in the pathogenesis of mucosal changes.
Collapse
Affiliation(s)
- I Eizaguirre
- Servicio de Cirugía Pediátrica, Universidad del País Vasco, Hospital N.S. Aránzazu, San Sebastián
| | | | | | | | | |
Collapse
|
36
|
Angulo JM, Arana J, Zubillaga P, Torrado J, Bollo E, Larrucea J, Garay J, Barriola M. [Helicobacter pylori infection and duodeno-gastric reflux]. Cir Pediatr 1993; 6:23-5. [PMID: 8499232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We have studied and measured the duodenogastric reflux in 11 children with chronic abdominal pain and Helicobacter pylori (HP) through 24-hours gastric pH-metric studies. All parameters evaluated: Number of reflux episodes (NR 92.87 +/- 27.66), number of reflux episodes longer than 5.0 minutes (NR > 5M 11.45 +/- 4.68), longest reflux episode (LR 67.37 +/- 45.57) and alkaline reflux area (AA 604.89 +/- 443.54) had significative differences against a normal group (40 children). We concluded that duodenogastric reflux and HP are frequent together.
Collapse
Affiliation(s)
- J M Angulo
- Servicio de Cirugía Pediátrica, Hospital Ntra. Sra. de Aránzazu, San Sebastián
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Torrado J, Correa P, Ruiz B, Zavala D, Bara J. Prospective study of Lewis antigen alterations in the gastric precancerous process. Cancer Epidemiol Biomarkers Prev 1992; 1:199-205. [PMID: 1306106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
A prospective study with two gastric biopsies taken several years apart was carried out in 117 subjects with intestinal metaplasia who are of the Lewis(a-b+) phenotype. They are residents of a rural Andean region in Colombia displaying very high rates of gastric cancer. The anomalous expression of Lewis(a) antigens in the metaplastic epithelium carried a significantly increased risk of colonic metaplasia and dysplasia. Such risk was much higher when the simultaneous expression of sulfomucins and Lewis(a) antigen was observed.
Collapse
Affiliation(s)
- J Torrado
- Department of Anatomic Pathology, Hospital Nuestra Sra. de Aranzazu, San Sebastian, Spain
| | | | | | | | | |
Collapse
|
38
|
Abstract
To explore the dynamics of the progressive loss of cell differentiation observed in the gastric precancerous process, the abnormal expression of Lea antigen in the gastric epithelium was investigated. Gastric biopsy specimens of 122 subjects with Le(a-b+) phenotype who had intestinal metaplasia of the gastric mucosa were studied. The subjects are residents of a rural area in the Colombian Andes with very high risk of gastric cancer. The abnormality was detected with increasing frequency in lesions with other markers of progression of the precancerous process, namely, colonic-type of morphology of the metaplastic cells, expression of sulfomucins, and dysplastic changes. The concomitant expression of the abnormal Lea antigen and sulfomucins was found to be a more reliable marker of more advanced lesions such as colonic metaplasia and dysplasia than either marker alone.
Collapse
Affiliation(s)
- J Torrado
- Department of Anatomic Pathology, Hospital Nuestra Sra. Aranzazu, San Sebastián, Spain
| | | | | | | | | | | |
Collapse
|
39
|
Abstract
Lesions identical to those observed in human intestinal atresia (IA) have been experimentally reproduced in several mammal models by either mesenteric vessels or intestinal wall injury. The recent availability of an avian model led us to investigate whether the same lesions could be studied at less expense. An intestinal loop within the body stalk hernia was coagulated on the 12th incubation day in 427 chick embryos (group 3), the lesions were studied in survivors 4 days later under light and scanning electronmicroscopy (EM), and the findings were compared with those in 12 control embryos (group 1) and 14 sham-operated ones (group 2). Types I or II atresias were obtained in 61 (73.4%) of the 83 survivors in group 3. Seromuscular layers were normal at both ends of the lesion; there was some flattening of villi at the proximal, dilated end, and hyperplasia with apparently lengthened, branched villi at the distal, unused one. Mucosal pattern under light microscopy was strikingly close to that observed in human IA and in the fetal lamb experimental model. On the other hand, scanning EM showed that in this model there were no villi as such, but rather prominent mucosal folds that were regularly arranged in a tire-rubber pattern in the normal intestine, flattened and distended in the dilated one, and again roughly normal in the distal unused gut. High-power magnification scanning EM showed that enterocytes were normal at all levels but, in agreement with previous findings in the fetal lamb model, that intercellular spaces were widened in the dilated portion adjacent to the obstruction.(ABSTRACT TRUNCATED AT 250 WORDS)
Collapse
Affiliation(s)
- J A Tovar
- Department of Pediatrics, Universidad del Pais Vasco, Hospital NaSa de Aranzazu, San Sebastián, Spain
| | | | | | | | | |
Collapse
|
40
|
Cosme A, Alzate L, Orive V, Recasens M, Torrado J, Ruiz I, Arenas J. [Laparoscopic findings in liver fascioliasis. Study of 13 cases]. Rev Esp Enferm Dig 1990; 78:359-62. [PMID: 2151116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The laparoscopic findings in 13 patients with liver fasciolasis are described. Diagnosis was made in three cases in base of the presence of ova Fasciola Hepatica in the patient's faeces and in 10 cases, because they fulfilled the following conditions: ingestion of fresh watercress, eosinophilic count exceeding 30%, positive serologic tests, eosinophilic granulomas with Charcot-Leyden crystals in liver biopsy and good response to treatment with dihidroemetine or bithionol. Nine cases (68.2%) showed hepatomegaly. In 12 of 13 (92.3%) lesions suggestive of hepatic distomatosis were found. Hepatic nodules of different sizes and shapes could be seen in 10 patients (76.9%), Glisson capsule was involved in five cases (38.4%) and peritoneum in three (23%). The latter was always affected with the liver but, on the other hand, liver capsule was found affected alone in two cases. In our experience, laparoscopy with liver biopsy is an important method for diagnosis of abdominal fasciolasis.
Collapse
Affiliation(s)
- A Cosme
- Servicio de Digestivo y Anatomía Patológica, Hospital Nuestra Señora de Aránzazu, San Sebastián, Guipúzcoa
| | | | | | | | | | | | | |
Collapse
|
41
|
Abstract
Alterations in the expression of type 1 blood group-related antigens (Lewis a and b) were examined immunohistochemically in 371 consecutives gastric biopsy and 80 surgical specimens from patients of gastric carcinoma. The ABH and Lewis phenotype and secretor status of the patients were correlated with histologic findings. An anomalous expression of Lewis a antigen was found in 88 of 249 gastric biopsy specimens of Lewis (a-b+) phenotype patients. The prevalence of this anomaly increased with the evolution of the premalignant process, in agreement with the commonly accepted model of gastric carcinogenesis. Thus, anomalous Lewis a antigen appeared in 66.6% of gastric dysplasia cases, in 64.6% of intestinal metaplasia, in 15.4% of atrophic gastritis, and in 7.4% of superficial gastritis. No alterations were found in subjects with normal gastric mucosa. Forty-seven of the 49 Lewis (a-b+) phenotype gastric carcinoma patients showed antigenic alterations in tumor cells (anomalous Lewis a antigen in 36 and loss of Lewis antigens in 11). In 26 of these gastric specimens an anomalous Lewis a antigen was present in areas of intestinal metaplasia and/or dysplasia away from the area of neoplastic transformation. The expression of Lewis a antigen in Lewis (a-b+) phenotype patients is a frequent phenomenon in gastric neoplastic cells and could result from the blocked synthesis of Lewis b antigen with accumulation of its precursors. These findings suggest that, during gastric carcinogenesis, antigenic alterations may precede neoplastic transformation. An anomalous Lewis a antigen could constitute a significant index of severity of the histologic lesion and contribute to identifying high-risk individuals.
Collapse
Affiliation(s)
- J Torrado
- Pathology Unit, Hospital Nuestra Senora de Arantzazu, San Sebastian, Spain
| | | | | | | | | | | |
Collapse
|
42
|
Torrado J, Gutierrez Hoyos A, Blasco E, Larraz J, Fernandez Rivas JL. Immunohistological patterns of blood group ABO and type 1 chain (Lewis a Lewis b) and type 2 chain (H-2, Y) antigens in normal uterine cervix. Tissue Antigens 1990; 36:8-11. [PMID: 2247887 DOI: 10.1111/j.1399-0039.1990.tb01791.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Ten monoclonal antibodies and one lectin were used to study the localization and distribution of Blood Group ABH, type 1 chain (Lewis a, Lewis b) and type 2 chain (H-2, Y) antigens in 22 cases of normal uterine cervix, with known ABO and Lewis phenotype and secretor status. The results showed that ABH isoantigen expression is clearly related to the secretor status. It is positive in the endo- and exocervical epithelium of secretor individuals and negative in non-secretors. Lewis antigen expression in both endocervical and exocervical epithelium is related to the patient's Lewis phenotype and is clearly controlled by the secretor gene. Indeed, the expression of the Lewis a antigen is limited to the tissue of people of Lewis (a + b-) phenotype (non-secretors), and the expression of Lewis b antigen is limited to the tissue of people of Lewis a-b+) phenotype (secretors). The Y antigen showed a focal expression in endocervical mucosa in all the cases, independently of secretor status or Lewis phenotype. The same pattern was observed for H-type 2 antigen, though only in secretor individuals.
Collapse
Affiliation(s)
- J Torrado
- Dept. of Pathology, Hospital Nuestra Señora de Aranzazu de San Sebastián, Spain
| | | | | | | | | |
Collapse
|
43
|
Torrado J, Blasco E, Gutierrez-Hoyos A. Altered expression of Lewis blood group and related antigens in fetal, normal adult and malignant tissues of the uterine endometrium. Virchows Arch A Pathol Anat Histopathol 1990; 417:277-8. [PMID: 2117317 DOI: 10.1007/bf01600146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
44
|
Echeverría Lecuona J, Oliveros Vela MP, Gaztañaga Expósito R, Torrado J, Ruiz Benito MA. [Neurologic manifestations of HIV infection in an infant]. An Esp Pediatr 1990; 32:88-9. [PMID: 2327672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- J Echeverría Lecuona
- Hospital Materno-Infantil Nuestra Señora de Aránzazu, Servicio de Pediatría, San Sebastián
| | | | | | | | | |
Collapse
|
45
|
|
46
|
Torrado J, Blasco E, Cosme A, Gutierrez-Hoyos A, Arenas JI. Expression of type 1 and type 2 blood group-related antigens in normal and neoplastic gastric mucosa. Am J Clin Pathol 1989; 91:249-54. [PMID: 2923092 DOI: 10.1093/ajcp/91.3.249] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The distribution of the blood group-related antigens type 1 (Lewis(a) [Le(a)], Lewis(b) [Le(b)]) and type 2 (H type 2, Y) has been examined in histologically normal and malignant mucosa of 40 surgical specimens of patients with adenocarcinoma of the stomach, with the use of a panel of monoclonal antibodies. Patients' Lewis phenotype and secretor status are correlated to the authors' findings. The surface epithelium of normal pyloric and fundic mucosa expressed the Lewis isoantigen (Le(a) in Le[a+b-] phenotype and Le(b) in Le[a-b+] phenotype), whereas the deep areas of this mucosa no showed the Le(a), Le(b) antigens and expressed the Y and H type 2 antigens whatever the secretor status of patients. Nineteen of 24 patients with Le(a-b+) phenotype showed anomalous expression of Lea antigen in neoplastic cells. In three of them, this alteration was found in tumor adjacent mucosa. No expression of Le(a) or Le(b) antigens was found in tumors or normal mucosa from Le(a-b-) phenotype patients.
Collapse
Affiliation(s)
- J Torrado
- Pathology Unit, Hospital Nuestra Senora de Aranzazu, San Sebastian, Spain
| | | | | | | | | |
Collapse
|
47
|
Suñol M, Tovar JA, Aldazabal P, Torrado J. [The chick embryo as a model of fetal surgery: intestinal atresia]. Cir Pediatr 1989; 2:13-8. [PMID: 2485656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Aiming at depicting the advantages of chick embryo as a model of fetal surgery we report on our experience of 402 operations carried out in an attempt to induce fetal intestinal obstruction. We have used fertile domestic hen (gallus gallus) eggs incubated at 37.5 degrees with 80% humidity and turned every hour. At the 12th day of incubation we coagulated, after exposing the umbilical cord, a small bowel loop in the physiologic umbilical hernia through a 1 cm-wide opening in the shell which was then sealed with plastic sterile adhesive. After sacrifice at the 15th day of the 76 surviving embryos (19%) we found type I intestinal atresia with localized meconium peritonitis and dilated proximal loop in 46 cases. In 3 out of them there was, like in some human newborns with intestinal obstruction, increased amount of bile-stained amniotic fluid. Both macroscopic and microscopic findings were identical to those usually found in human atresia and in that experimentally induced in fetus of other animal species. We firmly believe that our model is as good as any other for this purpose and, at the same time, it is cheaper and easier to handle.
Collapse
|
48
|
Blasco E, Torrado J, Cosme A, Alvarez E, Zugasti A, Gutierrez-Hoyos A, Arenas JI. Expression of Lewis antigenic determinants in colorectal adenocarcinomas. Exp Cell Biol 1989; 57:153-8. [PMID: 2476347 DOI: 10.1159/000163519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Expression of type 1 and type 2 chain Lewis antigens was studied in 32 rectal adenocarcinoma specimens; the results were correlated with the patients' Lewis phenotype and secretor status. In addition, the pattern of expression of these antigens was analyzed in adjacent and distant normal mucosa. We used an indirect immunofluorescence technique with p-phenylenediamine counterstaining (Oriol technique) and a panel of monoclonal antibodies directed against the different antigenic specificities. Normal distal colonic mucosa only expresses monofucosylated structures (Lea and X) arising from activity of the alpha 1-3,4-fucosyltransferase coded by the Le gene. Rectal adenocarcinomas also show Lea and X, but also reexpress blood group antigens ABH and exhibit difucosylated determinants (Leb and Y). The accumulation of mono- and difucosylated type 2 chain in neoplastic processes, independently of the Le and Se genes, could be due to the enzymes coded by reactivation of the H and X genes. Blood group antigens form a complex signal code, genetically regulated, which intervenes in differentiation, growth and cellular recognition processes, and which may undergo important modifications during malignant transformation. These alterations could be useful in the diagnosis and prognosis of some types of carcinoma.
Collapse
Affiliation(s)
- E Blasco
- Servicios de Anatomía Patológica y Gastroenterología, Hospital Nuestra Señora de Aranzaza, San Sebastián, España
| | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
Forty biopsies from 36 patients with bladder tumors were tested for T-antigen (TAg) expression on tumor cells on sections untreated or treated with neuraminidase; a 37.5% of tumors showed abnormal expression of TAg either as an aberrant expression, or absence of this antigen after removing sialic acid. These changes were not well correlated with histologic signs of anaplasia or infiltration, nor with other biologic properties of tumor cells such as the expression of blood group antigens (ABH). However, a practical utility of TAg in the study of bladder tumors, is suggested by the analysis of those biopsies with low-grade low-stage tumors, on which the abnormal expression of TAg was more discriminatory than the ABH changes in defining those patients suffering tumors with a particular aggressiveness. Circulating antibody titer was also investigated in 20 patients but all of them displayed titers in the normal range, with independence of the results observed in their corresponding bladder biopsies.
Collapse
Affiliation(s)
- E Blasco
- Sección de Inmunologis, Hospital Ntra Sra de Aranzazu, San Sebastiän, Spain
| | | | | | | | | | | |
Collapse
|
50
|
Martín L, Ojeda E, Mijares P, Arrieta JR, Sellarés R, Torrado J. [2 familial cases of Sjögren syndrome associated with cryoglobulinemia and glomerulonephritis]. Rev Clin Esp 1988; 182:160-2. [PMID: 3368594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|