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At least 271 records · Page 15Linked to original sources
PubMed1996

Ashkenazi Jews, sulfur gases, and ulcerative colitis.

Fecal pathogens have been suspected to cause ulcerative colitis, yet none have been identified. Meanwhile, the 400 species comprising normal colonic flora have received little attention as potential pathogens. Sulfate-reducing bacteria (SRB), a frequent colonic commensal, have been identified in greater numbers in people with ulcerative colitis. The bacteria produce hydrogen sulfide, a toxic compound with the potential to cause colonic injury and possibly ulcerative colitis. If these bacteria are pathogenic, high-risk populations may harbor greater numbers of these organisms in their colons. We compared a group with a high incidence of ulcerative colitis, Ashkenazi Jews, to a control population to assess carriage rates for SRB. Breath samples were collected to indirectly determine colonic conditions. No difference was found between the two groups studied.

Adolescent↗
PubMed1997

"Immunity" of Ethiopian Jews to developmental dysplasia of the hip: a preliminary sonographic study.

Developmental dysplasia of the hip (DDH) is one of the most common problems affecting the pediatric musculoskeletal system. The condition represents a broad spectrum of sonographic (anatomic) pathoanatomical situations, ranging from very mild dysplasia to full dislocation, manifesting clinically as stable or unstable hip joints, particularly in the neonatal period. The cause of DDH is unclear. Various theories suggest genetic, hormonal, mechanical, and geographic factors, along with hemotypology and a great variety of other factors, as causes for this condition. In the present study, sonographic criteria for diagnosing DDH according to Graf were used. Although the overall incidence of DDH was 5.9% in white neonates, it was only 0.44% (two hips, one stable and one unstable) among 450 hips of black Ethiopian newborns. Left untreated, these hips became clinically and sonographically normal. Our results could be considered to indicate a zero incidence of DDH among Ethiopian Jews in this series.

Black People↗
PubMed1994

Mutation in codon 200 and polymorphism in codon 129 of the prion protein gene in Libyan Jews with Creutzfeldt-Jakob disease.

Various mutations in the prion protein (PrP) gene are associated with Creutzfeldt-Jakob disease (CJD), a transmissible fatal neurodegenerative disorder. Among Libyan Jews, CJD is a familial disease with an incidence about 100 times higher than the worldwide population. CJD in this community segregates with a point mutation at codon 200 of the PrP gene which causes the substitution of lysine for glutamate. This mutation was found in all definitely affected individuals and yields a maximum lod score of 4.85. Some healthy elderly mutation carries above 65 years of age were identified, suggesting partial penetrance. Homozygous patients have the same disease pattern and age of onset as heterozygous patients, which argues that CJD associated with the codon 200 lysine mutation is a true dominant disorder. In the caucasian population, Palmer et al. (1991) reported an association between homozygosity in a polymorphic site at codon 129 of the PrP gene, coding for either valine or methionine, with a tendency to acquire the sporadic or iatrogenic forms of CJD, as well as with disease age of appearance in the genetic type. The incidence of the polymorphism at codon 129 in the control Libyan population is similar to the one found in the caucasian population. In the Libyan CJD patients, the codon 200 mutation is within a Met129-encoding allele. The incidence of the Met allele is significantly higher in the affected pedigrees than in the control Libyan population; however, no difference was detected between CJD patients, codon 200 healthy carriers, and their normal family members.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed2004

Common ancestral origin of pemphigus vulgaris in Jews and Spaniards: a study using microsatellite markers.

Pemphigus is a group of autoimmune blistering diseases of the skin and mucous membranes. The association of pemphigus with human leukocyte antigen (HLA) is widely accepted. It was described in many ethnic groups and in most countries of the world. Studies showed that the associated HLA haplotype in Jewish pemphigus vulgaris (PV) patients is HLA-B38, DRB1*0402, and DQB1*0302; or HLA-B35, DRB1*0402, and DQB1*0302. Similar associations with class II genes were found in Spanish non-Jewish PV patients. As Jews lived in Spain for hundreds of years and many converted to Christianity, the presence of the same HLA haplotype in the Jewish and Spanish PV suggests that they may share the same founder. Microsatellite markers which span the entire major histocompatibility complex (MHC) locus were used as genetic probes. They were utilized to dissect the MHC region in the search for possible common haplotypes, besides HLA, which may provide an answer to this question. It was found that in both cohorts, in addition to HLA class II genes, there are probably genes in the class I region which are associated with PV. Alleles belonging to the associated markers were used to construct haplotypes and to estimate genetic distances. The distance between the two PV cohorts is relatively short, but the distance between the Jewish patients and the Jewish controls is greater compared to the distance between Spanish patients and Spanish controls. In both PV populations, the same microsatellite haplotypes in addition to a common class II haplotype were found, suggesting that both patient populations originated from the same genetic stock and, therefore, share the same ancestral disease gene.

Alleles↗
PubMed1997

Congenital intractable diarrhea of infancy in Iraqi Jews.

We report on five patients who presented with intractable diarrhea starting during the first days of life. The patients belonged to four families of Iraqi Jewish origin. Autosomal recessive inheritance is suggested by parental consanguinity in three families and recurrence in another sib in one family. The patients were all born after uneventful pregnancy and labor, with birth weight in the normal range. There were no dysmorphic features. Three patients were breast fed. Diarrhea started between the first and eighth day of life. Diarrhea was of the secretory type. No pathogen was cultured from the stool. Jejunal biopsies performed on all patients ranged from normal to severe partial villous atrophy. The patients received different drug regimens with no beneficial effect and all are dependent on TPN. These findings and the common ethnic origin of the patients suggest that these patients have the same syndrome of congenital intractable diarrhea. No similar cases are known in other ethnic groups in Israel, suggesting a possibility of high gene frequency among the Jews of Iraqi origin.

Adrenal Glands↗
PubMed1978

HLA polymorphism in Israel. 3. Ashkenazi Jews of German descent.

Seventy-three random Jewish individuals whose families have lived in Germany for at least 4-5 generations, were typed for HLA antigens at the A and B loci. In comparison with other European populations, the frequencies of B7 and B12 are low whereas Bw35 is almost twice as frequent (21%). Among the uncommon associations found in the German Jews were: (A2, Bw21), (Aw25, B18), (A29, B14), (A28, Bw15). The frequent haplotype (Aw24, Bw35) was previously found, but only in Asia and in American Indians. Subdivisions of the subjects according to geographic regions within Germany point to differences in gene frequency between the groups.

Gene Frequency↗
PubMed1978

HLA polymorphism in Israel. 5. The Moroccan Jews.

One hundred and forty one unrelated Moroccan Jews living in Israel were studied for their HLA polymorphism. Gene frequencies exceeding .1 were found for A1, A2, A3, Aw19, B5, B12, and B13. Significant linkage disequilibrium occurred for (A1, B8), (A2, B5), (A2, Bw21), (A3, Bw40), (A9, B7), (A10, Bw16), (A29, B18) and (Aw19, b14). they represent an intermediate population between Europe and the Middle East.

Gene Frequency↗
PubMed1978

HLA polymorphism in Israel. 6. North African Jews from Libya.

Phenotype and gene frequencies of antigens at the A and B HLA loci were determined in a sample of 89 random Libyan Jews now settled in Israel. Most antigens at the A locus are within the range found in European populations while, at the B locus, the frequencies differ from Caucasoid populations: B7 is usually rare (1%), Bw35 is frequent (14%) and Bw40 very common with more than 10%. Thirteen percent of Libyan women whose sera were screened for the presence of HLA antibodies gave positive results. Some of them are elderly women, about 15 years or more beyond their last birth.

Gene Frequency↗
PubMed1978

HLA polymorphism in Israel. 7. The Babylonian Jews.

One hundred and twenty three Iraqi Jews, now living in Israel, were studied for their HLA polymorphism. Gene frequencies exceeding .1 were found for A1, A3, Aw19, B5, B12, and Bw35. A28, B8 and B14 were relatively rare whereas Aw25 and Bw37 were not found at all. Significant gametic associations occurred for (Aw23, Bw21), (Aw26, Bw16), (A11, B5), (A28, B8) and (A28, B7). The Iraqi Jewish population was found to be typical of Asiatics and Middle Easterners.

Gene Frequency↗
PubMed1977

To be or not to be a Jew? A dilemma of Sigmund Freud?

The paper presents the position that Freud was not torn by the conflict "To be or not to be a Jew" as some have contended, but, rather, that he had resolved upon "to be ...", and did not long to reject his Jewish identity. What is maintained here is that evidence cited in support of supposed ambivalence regarding Jewish identity is better interpreted in terms of Freud's life-long ambivalence toward his father, his drive to denigrate and destroy him. Evidence is brough that it is his father, rather than himself, whom Freud identifies with the Moses figure - and the consequences of his identification are used to explain both his obsession with the Moses theme and his seeming digressions into Bible-analysis in "Moses and monotheism". The latter, which Freud described as a sequel to "Totem and Taboo", is seen as the acting out of the wish for parricide described in that work.

Freudian Theory↗
PubMed1984

Physiologic pigmentation of the oral mucosa in Israeli Jews of different ethnic origin.

The prevalence of oral physiologic pigmentation in three ethnic groups of a total of 2465 Israeli Jews was determined, and the relationship of oral pigmentation to age and sex within the groups was noted. Results showed the presence of oral pigmentation in 63.6% of the Eastern group, 54.8% of the Sephardic group, and 24.9% of the Ashkenazi group. No indication was found of sex predilection, and no significant trend was evident in the prevalence of pigmentation with relation to age. The leading site of pigmentation among the entire sample was the gingiva, and this finding did not vary with ethnicity.

Adolescent↗
PubMed1985

Commissural lip pits in Israeli Jews of different ethnic origin.

The prevalence of commissural lip pits in a group of 2462 Israeli Jews was determined, and a relation of commissural lip pits to ethnic background was noted. Results showed the presence of commissural lip pits in 17.4% of the entire sample; 9.7% were unilateral and 7.7% were bilaterally located. The Ashkenazi group showed a significant higher prevalence of commissural lip pits (19.4%) when compared to the prevalence in the Sephardic group (14.1%) and the Eastern group (21.1%).

Adolescent↗
PubMed1986

Fordyce's granules in the oral mucosa of adult Israeli Jews.

The prevalence of Fordyce's granules in a group of 2,462 Israeli Jews was determined. Fordyce's granules were observed in 94.9% of the entire sample. The most common location was the vermilion border of the upper lip (82.2%), followed by the retromolar area (73.3%), the buccal mucosa (65.9%) and the vermilion border of the lower lip (29.2%). The granules were common in men. A significant difference in prevalence was found between the Ashkenazi group and each of the other two ethnic groups.

Adolescent↗
PubMed1993

Hereditary properdin deficiency in three families of Tunisian Jews.

Hereditary properdin deficiency is a rare genetic disorder of the complement system. Three propositi and six additional family members with properdin deficiency have been found following analysis of the hemolytic activity of the classical (CH50) and the alternative (AP50) complement pathways in the sera of 101 survivors of meningococcal infections and 59 survivors of severe pneumococcal and Haemophilus influenza infections. All the properdin-deficient individuals had undetectable levels of properdin by radial immunodiffusion and by Western blotting. They belonged to three non-related families of Tunisian Jews who came from different parts of Tunisia. Two patients had a meningococcal infection at 15 and 16 years of age, respectively, and one had Haemophilus influenza meningitis at 1.5 years of age. In contrast to the fulminant and fatal course of meningococcal infection which was previously described in some properdin-deficient patients, our patients had a relatively mild disease. Properdin deficiency may not be as rare as previously thought. Analysis of AP50, in addition to CH50, in sera of patients who had meningococcal infection, will probably disclose many more cases of hereditary properdin deficiency. In addition, our findings indicate that, as in other complement abnormalities, hereditary properdin deficiency may also be associated with the ethnic origin of the patient.

Adolescent↗
PubMed1959

Taste thresholds for phenylthiourea among Ashkenazic Jews.

Taste thresholds for phenylthiourea were measured for 244 Ashkenazic Jews. The frequency of nontasters was 27.86 percent. In the sample, 102 individuals were of pure Polish ancestry, and the frequency of nontasters among these was significantly different from the frequencies of nontasters among Europeans and Mongoloids.

Asian People↗
PubMed2001

Lack of evidence for an association between two genetic polymorphisms in the tumor necrosis factor receptor 1 gene and multiple sclerosis in Ashkenazi Jews.

Multiple sclerosis (MS) is a multifactorial disease with a documented genetic component. Recent experimental models suggested a role for the tumor necrosis factor receptor 1 (TNFR1) in the pathogenesis of the disease. We compared the frequency of two polymorphisms from TNFR1, located in exon 1 and intron 6, in 94 Jewish Ashkenazi MS patients and 83 healthy Ashkenazi controls. No significant differences were observed for both polymorphisms between the patients and the controls. These findings suggest that genetic variants in TNFR1 do not play a significant role in Ashkenazi Jews.

Antigens, CD↗
PubMed1994

Natural course of idiopathic torsion dystonia among Jews.

The natural history of 51 idiopathic torsion dystonia cases identified in a nationwide survey in Israel was studied. In order to take advantage of all data regarding the evolution of the disease, independently of the length of follow-up, we have used a life table method of analysis. An estimate of the mean degree of generalization of the disease at different times from onset was calculated and a curve of the estimated temporal evolution was drawn. This analysis confirmed the heterogeneity of the disease course. The most rapid deterioration occurred in patients with juvenile onset in the lower limbs, particularly in the first 2 years following the onset. The rate of evolution was not influenced by gender or familiarity. The course of the disease seemed more deleterious in non-Ashkenazic Jews. The present statistical method of estimating the evolution in different patient groups should be useful especially for the evaluation of therapeutic interventions.

Adolescent↗
PubMed1992

PI and TF subtypes in Chuetas (Majorcan Jews).

PI and TF subtypes were studied in a sample of 137 individuals of the Chueta population. In addition to the PI*M alleles, PI*S, PI*Z, and PI*F were observed in the PI system. In the TF system no TF*B or TF*D alleles were found. PI results were compared with those of some Jewish and non-Jewish populations. The relatively high frequency of PI*S is indicative of a substantial Spanish influence. There are no previous data available on TF*C subtypes in Jews. The very low TF*C3 frequency in Chuetas (lower than in Spain) indicates that this allele may be extremely rare or absent in other Jewish populations.

Adult↗