Results 121 to 130 of about 536 (156)
Some of the next articles are maybe not open access.
Hypolactasia and the Chinese Diet
Current Anthropology, 2002Compte tenu de la diversite du regime alimentaire des Chinois, il peut paraitre etonnant qu'ils aient porte si peu d'interet au lait. Des sources anciennes attestant que le lait d'animaux domestiques ne leur etait pas inconnu, deux interrogations intrigantes se posent : 1. Pourquoi les anciens Chinois n'ont-ils pas developpe l'elevage laitier ?
openaire +1 more source
Hypolactasia in Saami subpopulations of Russia and Finland
Anthropologischer Anzeiger, 1997Primary hypolactasia is a gene attributed condition of the inability of adult individuals to consume whole milk. Subpopulations of the Russia (Kildin) and Finland Saami are characterized by a large variability of the LAC*R (lactase restriction) gene frequencies (0.50-0.77). The distribution of primary hypolactasia among the Saami is ranging from 25% to
A, Kozlov, D, Lisitsyn
openaire +2 more sources
Genetic testing for adult-type hypolactasia in Italian families
Clinical Chemistry and Laboratory Medicine, 2008Adult-type hypolactasia is characterized by the inability to digest lactose during adulthood, due to lactase (LCT) deficiency. It is usually diagnosed by the measurement of breath hydrogen increase after a lactose load (breath hydrogen test, BHT). A substitution of C to T at position -13910 bp upstream the LCT gene (rs4988235), in a regulatory region ...
MOTTES, Monica +8 more
openaire +3 more sources
Adult Hypolactasia, Milk Consumption, and Age-specific Fertility
American Journal of Epidemiology, 1994Beta-galactosidase (lactase) allows the digestion of lactose as its component sugars, galactose and glucose. Considerable variation exists worldwide in the prevalence of adults who lose the ability to digest lactose after infancy (hypolactasia) as well as in the amount of milk products they consume.
D W, Cramer, H, Xu, T, Sahi
openaire +2 more sources
[Hypolactasia in Japanese Crohn's patients].
Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology, 199320 g lactose load test, BHT and LTT done simultaneously were examined in 32 Crohn's disease patients and 51 healthy volunteers. Hypolactasia frequency were examined. A rise in hydrogen concentration > 20 parts per million (ppm) above the base line during breath hydrogen test and maximum blood sugar rise during lactose tolerance test were considered to ...
M, Ogata, T, Yao
openaire +1 more source
Mosaic regulation of lactase in human adult-type hypolactasia
Gastroenterology, 1994We have previously shown that in the proximal-jejunum of hypolactasic humans, just a few villus enterocytes express lactase protein and activity. In the present study, we compared the distribution of lactase messenger RNA (mRNA), protein, and activity in villus enterocytes in tissues obtained from subjects with persistent high lactase activity and ...
MAIURI L +8 more
openaire +3 more sources
Beneficial effects of oral tilactase on patients with hypolactasia
European Journal of Clinical Investigation, 2008ABSTRACTBackground A lactose‐free diet is commonly prescribed to subjects with hypolactasia. We tested the effectiveness of a single ingestion of tilactase (a β‐d‐galactosidase fromAspergillus oryzae) in adults with hypolactasia, previously assessed by lactose H2‐breath test.Materials and methods After measurement of orocecal transit time (OCTT, by ...
P Portincasa +5 more
openaire +3 more sources
Hypolactasia and Crohn's disease: a myth.
The American journal of gastroenterology, 1990A retrospective analysis was made of jejunal biopsies performed on 62 patients with Crohn's disease for disaccharidase levels and routine histology. Thirteen patients with irritable bowel syndrome acted as a control group. Two patients with Crohn's disease had hypolactasia.
R H, Park, A, Duncan, R I, Russell
openaire +1 more source
Strip Test is Reliable in Common Prevalences of Hypolactasia
Scandinavian Journal of Gastroenterology, 1987The object of this study was to compare the indirect diagnostic methods on the basis of urinary galactose determination in the diagnosis of lactose malabsorption with the actual lactase activities. One hundred and seven patients were studied. The specificity and sensitivity of the strip test were 97%.
H, Arola +6 more
openaire +2 more sources
Adult-type hypolactasia in children: A genetic perspective
Journal of Pediatric Biochemistry, 2016Adult-type hypolactasia is an autosomal recessive condition resulting from the physiological decline of the lactase enzyme activity in intestinal cells which occurs in a significant proportion of the global population. Mechanisms proposed to explain the occurrence of adult-type hypolactasia include: (a) decreased production of lactase, (b) synthesis of
Kuchay, Raja A.H. +2 more
openaire +1 more source