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At least 487 records · Page 27Linked to original sources
PubMed1979

Vitreoretinal hemorrhages after ingestion of fava beans in a G-6-PD-deficient subject.

A case of vitreo retinal hemorrhages following a hemolytic crisis by fava beans in a G-6-DP-deficient patient is reported. Intravascular coagulation due to thromboplastin-like substances liberated by the diseased RBC could be the cause. The possibility of vitreoretinal hemorrhages of this nature in young subjects from the areas where G-6-PD deficiency is endemic is stressed.

Adult↗
PubMed1971

Genetic diversity of the "Mediterranean" glucose-6-phosphate dehydrogenase deficiency phenotype.

Genetic diversity of the "Mediterranean" phenotype of G-6-PD (glucose-6-phosphate dehydrogenase) deficiency was revealed when detailed studies were performed on blood specimens from 79 Greek males with G-6-PD levels 0-10% of normal. Four different mutants were found to be responsible for the severely deficient phenotypes: two mutants. G-6-PD U-M (Union-Markham) and G-6-PD Orchomenos, were distinguishable by electrophoresis, while the other two. G-6-PD Athens-like and G-6-PD Mediterranean, were distinguishable on the basis of their kinetic characteristics. Of the kinetic tests applied, the most useful for differentiating the variants were those measuring utilization rates of the analogue substrates deamino-NADP, 2-deoxyglucose-6-phosphate, and galactose-6-phosphate. Among unrelated males with severe G-6-PD deficiency, the relative frequencies of the four variants were: G-6-PD U-M. 5%; G-6-PD Orchomenos, 7%; G-6-PD Athens-like, 16%; G-6-PD Mediterranean, 72%. Genetic, biochemical, and clinical implications of the findings are discussed.

Electrophoresis↗
PubMed1999

Hemolytic crisis after excessive ingestion of fava beans in a male infant with G6PD Canton.

After ingesting fava beans, a 26-month-old Chinese-Japanese male infant showed a sickly complexion and yellowish-brownish skin and was hospitalized. Severe hemolytic anemia was observed on admission, and transfusion of 200 ml of packed red cells was required. Red cell enzyme assay revealed that the patient and the mother were deficient in glucose-6-phosphate dehydrogenase (G6PD). Subsequent molecular analysis showed that the patient had a missense mutation 1376 G to T (G6PD Canton) and his mother was a homozygote for the mutation. The patient was a son of a Chinese (Taiwanese) mother and a Japanese father. Although G6PD deficiency is rare in the original Japanese population, the number of "imported" cases could be rising rapidly. This is the first reported Japanese case of G6PD deficiency with G6PD Canton.

Amino Acid Sequence↗
PubMed2001

[The genotype analysis of glucose-6-phosphate dehydrogenase deficiency in Yunnan province].

OBJECTIVE: To identify glucose-6-phosphate dehydrogenase (G6PD) gene mutations in 23 patients with G6PD deficiency and to gain further understanding of the molecular and genetic background of G6PD gene in Yunnan province, China. METHODS: The mutations located in exons 2-12 and in parts of introns of G6PD gene were analyzed by amplification refractory mutation system(ARMS), natural and mis-match primer PCR/restrict enzyme, polymerase chain reaction-single strand conformation polymorphism(PCR-SSCP ) analysis and automatic DNA sequencing. RESULTS: Among these 23 samples, 5 different point mutations in G6PD gene were identified, and they constituted 5 genotypes. There were 7 Han and 3 Dai patients with G487A mutation, 7 cases with both intron 11 T93C and C1311T mutations, 4 cases with intron 5 636 or 637 T-->del mutation, 1 case with G871A mutation, and 1 case with G487A/T93C/C1311T mutation. Two haplotypes, 93C/1311T and 93C/1311T/487A were identified in Yunnan. A strong association was observed between C1311T and the Nla III restriction site produced by intron 11 T93C. The findings of the investigators on IVS-5 636 or 637T-->del in Chinese, on G871A in mainland of China, and on G487A in the Han people of Yunnan have not been reported previously. CONCLUSION: G6PD deficiency is very heterogenous in Yunnan; G487A is one of the common mutations in that province and may be of different origins. Possibly IVS-11 T93C mutation is of non-African origin. IVS-11 T93C and C1311T might jointly result in G6PD deficiency. The above data on G6PD gene mutation types could be useful for clinical diagnosis, prevention of G6PD deficiency, and researches in the origin and migration of minorities in Yunnan or other regions.

Adolescent↗
PubMedDate not supplied

[Not Available].

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Favism↗
PubMed1989

[The broad bean's syndrome in ancient Egypt].

The problem of broad bean's syndrome and lathyrism in ancient Greece has been deeply studied, with particular referrement to the hypothetic medica and mystical reasons of the Pythagoric order not to eat broad beans. It is impossible to prove Egyptian influence of Phythagora's precept, but we can, however, consider the hypothesis that they had noticed the potential deadly effect of broad beans' use, too, and wonder if their interduction had the same motivations.

Egypt, Ancient↗
PubMed2002

Low-molecular-weight protein tyrosine phosphatase and human disease: in search of biochemical mechanisms.

A major challenge in the post-genomic era is to identify the physiological functions of genes and elucidate the molecular basis for human disease. Genetic polymorphisms offer a convenient avenue for these efforts by providing evidence for the involvement of a given gene in human pathophysiology. Here we review the current evidence linking the low-molecular-weight protein tyrosine phosphatase (LMPTP) to several common diseases, including allergy, asthma, obesity, myocardial hypertrophy, and Alzheimer's disease. Based on the known effects of the genetic polymorphisms on the alternative mRNA splicing and enzyme levels of LMPTP, we discuss the possible molecular mechanisms of LMPTP involvement in these diseases.

Alternative Splicing↗