Abstract:
:The eruption of the deciduous teeth in Down's individuals is reportedly delayed, but the extent of delay in comparison to normal children has been little studied. The eruption characteristics of the deciduous teeth in a sample of Chilean individuals with Down's syndrome were compared with those of the normal Chilean population. The sample consisted of 255 Down's individuals (all with trisomy 21), 127 males and 128 females. Boys with Down's syndrome showed significantly delayed eruption in six teeth: in the maxilla the right central incisor and right and left lateral incisors, and in the mandible the right central incisor and right and left canines. Girls with Down's syndrome showed significant delays in the eruption of 11 teeth: in the maxilla the right and left lateral incisors, right and left canines and first left molar, and in the mandible the left central incisor, right and left lateral incisors and canines and second right molar. The chronological sequence of eruption in Down's children was not completely different from that of normal individuals. With a few exceptions no significant departures from Gaussian distribution were found in the age of eruption among both normal and Down's individuals. The variance was significantly larger in cases of Down's syndrome.
journal_name
Arch Oral Bioljournal_title
Archives of oral biologyauthors
Ondarza A,Jara L,Muñoz P,Blanco Rdoi
10.1016/s0003-9969(97)00012-5subject
Has Abstractpub_date
1997-05-01 00:00:00pages
401-6issue
5eissn
0003-9969issn
1879-1506pii
S0003-9969(97)00012-5journal_volume
42pub_type
杂志文章abstract::A large earthquake (8-9 on the Richter scale) and a series of aftershocks took place on 2 March 1985 in Santiago, Chile. The characteristics of over 22,000 births registered in three public hospitals in the same year were reviewed. A significant increase in the rate of facial clefts was found; 2.01 per 1000 births in ...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(94)00146-3
更新日期:1995-01-01 00:00:00
abstract::Recent reports characterizing the physiological properties of normal human labial acini are reviewed with particular emphasis on mechanisms related to fluid secretion. In contrast to the salivary glands of several experimental animals, human labial acinar cells do not appear to have a1-adrenergic receptors, substance ...
journal_title:Archives of oral biology
pub_type: 杂志文章,评审
doi:10.1016/s0003-9969(99)00044-8
更新日期:1999-05-01 00:00:00
abstract::Small, quasi-rhythmical tremor of the jaw occurs at rest and during voluntary movements. In peripheral limbs, tremor consists of a component due to mechanical resonance properties of the system, and a neurogenic component mediated by a central pacemaker or neural loops. The present study attempted to determine if thes...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/s0003-9969(97)00091-5
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE AND DESIGN:Autopsies of the submandibular gland, the vestibular folds and the soft palate from 65-87 old humans were examined to record the immunohistochemical expression of MUC1 and the simple mucin-type antigens Tn and Sialyl-Tn. RESULTS:(1) The serous acini in the submucosal glands from the larynx and the...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2010.07.007
更新日期:2010-11-01 00:00:00
abstract::Neurophysiological exploration of the trigeminal sensory complex was done on 42 cats under ketamine anaesthesia, paying special attention to units receiving a periodontal input. Among 492 cells recorded in the trigeminal sensory complex, 73 responded to mechanical stimulation of the periodontium and were precisely loc...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(83)90138-3
更新日期:1983-01-01 00:00:00
abstract::The histochemical muscle-fibre composition of the anterior and posterior belly of the human digastric muscle was analysed in young male adults. Both bellies, of differing embryological origin and supplied by different cranial nerves, showed a fibre composition similar to that of normal limb and trunk muscles. Type I, ...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(82)90054-1
更新日期:1982-01-01 00:00:00
abstract::Inhibitory substances produced by six strains of Streptococcus salivarius were isolated and partially characterized. The six prototype producer strains were selected initially on the basis of their differing spectra of inhibitory activity when tested against a set of nine standard indicator strains. Optimal production...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(82)90136-4
更新日期:1982-01-01 00:00:00
abstract::These were characterized in stimulated saliva from 21 healthy volunteers using antibodies specific for human tissue-type plasminogen activator (t-PA) or urokinase. After pre-incubation with immunoglobulins, with and without specific antibodies, the fibrinolytic activity was assayed on fibrin plates containing plasmino...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(87)90097-5
更新日期:1987-01-01 00:00:00
abstract::This paper reports the development of a protocol allowing hybridization and detection of DNA fixed to nylon colony lifts from up to three species of bacteria simultaneously. Half ml samples of serial dilutions of pure cooked-meat broth (CMB) cultures of Capnocytophaga ochracea, Actinobacillus actinomycetemcomitans and...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(93)90105-u
更新日期:1993-11-01 00:00:00
abstract::Types of etching patterns and histological appearances were examined in acid-etched, NaF-treated caries-like lesions of enamel. Etching patterns similar to those for etched-sound enamel were found. Remineralization was limited to the surface zone and superficial portion of the body of the lesion following acid-etching...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(84)90004-9
更新日期:1984-01-01 00:00:00
abstract::The expression of anchorage independence in malignant oral epithelial cells retrieved from colonies formed in agarose and tumours formed in athymic mice was examined. The original epithelial cell lines were derived from lingual and palatal squamous cell carcinomas induced in rats by the carcinogen 4-nitroquinoline N-o...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(89)90143-x
更新日期:1989-01-01 00:00:00
abstract::Cheek pouches were removed from 9 BIO 87.20 adult-male hamsters, pinned out on cork sheets and fixed, then divided into segments and processed. Mallory stain showed complete orthokeratinization of the pouch epithelium with regular keratohyaline granules. With scanning electron microscopy, the morphology of the walls w...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(82)90185-6
更新日期:1982-01-01 00:00:00
abstract::The mRNA for insulin-like growth factor I (IGF-I) in the submandibular gland of mature and developing rats was examined by Northern blotting and in situ hybridization with an oligonucleotide probe. In the mature adult rat, IGF-I mRNA was expressed at a higher level in the submandibular gland than in the liver, and was...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(93)90006-8
更新日期:1993-08-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to investigate the age-related changes in the articular disc, condyle, condylar fibrocartilage, and subchondral bone of the temporomandibular joint (TMJ) in rabbits. METHODS:Female New Zealand white rabbit aged 1, 4, 12, and 32 weeks were obtained. Each age group comprised 5 rabbits...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2019.104639
更新日期:2020-03-01 00:00:00
abstract::A water-soluble extract of Actinomyces viscosus (AVS) was tested for its capacity to induce DNA synthesis in lymphocytes from man, monkeys, mice and guinea pigs. The results indicated that the AVS induced an in-vitro lymphoproliferative response, as assessed by tritiated thymidine incorporation, in mouse-spleen cells,...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(82)90161-3
更新日期:1982-01-01 00:00:00
abstract::The purpose of this study was firstly to characterize the changes occurring in size and form of the mineralizing maxillary second primary molar and first permanent molar crowns, and secondly to determine if similar changes in size and form characterize enamel apposition in the crowns of these teeth. Twenty-five primar...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/s0003-9969(98)00034-x
更新日期:1998-07-01 00:00:00
abstract::The surface zone of human deciduous and permanent enamel was examined following sectioning, polishing and etching. Three main types of surface were where prisms reached the surface, where the prisms were not discernible and those formed by a complex of both types. The aprismatic layers were measured and the percentage...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(82)90147-9
更新日期:1982-01-01 00:00:00
abstract:OBJECTIVES:brain-derived neurotrophic factor (BDNF), which is produced in rat submandibular gland, is one of the most abundant neurotrophins in the central nervous system. It is generally accepted that occlusal disharmony causes stress. The purpose of the present study was to investigate whether occlusal disharmony-ind...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2010.09.001
更新日期:2011-01-01 00:00:00
abstract::Parotid salivation was stimulated by infusion of bethanechol chloride into anaesthetized brushtail possums to ascertain maximal flow rates, salivary composition and dietary adaptations of salivary function. Secretion rates for one gland ranged from 5.3 +/- 0.16 to 84.3 +/- 3.20 microliters/min (2.4 +/- 0.07 to 37.8 +/...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(94)90127-9
更新日期:1994-04-01 00:00:00
abstract::By ammonium-sulphate fractionation, phosphocellulose column chromatography, and isoelectric focusing, pyruvate kinase (EC 2.7.1.40) was purified from pig dental pulps to yield a homogeneous preparation with a single protein band of approx. 63,000 daltons upon SDS-polyacrylamide gel electrophoresis. As the molecular we...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(86)90078-6
更新日期:1986-01-01 00:00:00
abstract::The interaction between proteins and cell receptors is related to tissue homeostasis such as in salivary glands. In this respect, alterations in hormone levels caused by hyperglycaemic conditions may interfere with this interaction, intensifying the damage caused by diabetes mellitus. Hormone replacement therapy is an...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2011.03.014
更新日期:2011-10-01 00:00:00
abstract::It is well known that low-molecular weight hyaluronan (HA) is detected in human periodontal tissue under inflammatory conditions. HA oligosaccharide (HAoligo) has been demonstrated to induce matrix metalloproteinase (MMP)-1 expression in dendritic cells and chondrocytes, however, the bioactivities of HAoligo in period...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2009.05.005
更新日期:2009-08-01 00:00:00
abstract::One hundred and forty-two teeth of children and adults were analysed for lead content by graphite furnace atomic absorption spectrophotometry. The results showed that, for children, tooth age is an important factor that has to be taken into consideration when lead levels are evaluated. In adults tooth type may be igno...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(90)90069-m
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVES:Previous studies have suggested that the vasculature in the dental pulp and periodontal tissues plays an important role in producing the eruptive force in continuously erupting incisors. The aim of the present study was to investigate the effects of local injections of vasoactive drugs on regional blood flow...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2005.11.001
更新日期:2006-06-01 00:00:00
abstract:OBJECTIVE:Non-syndromic supernumerary teeth (NSST) are a common type of dental anomaly. microRNAs (miRNAs) play an important role in craniofacial and tooth development. Therefore, we hypothesized that single nucleotide polymorphisms (SNPs) of miRNAs may be associated with the susceptibility of NSST. MATERIALS AND METH...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2020.104771
更新日期:2020-09-01 00:00:00
abstract:OBJECTIVE:The DNA oxidation byproduct 8-hydroxy-2'-deoxyguanosine (8-OHdG) is a well-known biomarker used to evaluate oxidative stress. We previously reported that the generation of reactive oxygen species (ROS) is increased in cultured gingival fibroblasts (GF) from patients with Down syndrome (DS). Thus, the aim of t...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2013.03.017
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVE: Considering the higher rate of oral cancer, and reduction in salivary antioxidants in smokers as indicated in previous studies, antioxidant- containing nutrients such as green tea, seem to be beneficial in counteracting against oxidative stress in this group. This study assessed the salivary total antioxidan...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2017.02.002
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVES:Calpains comprise a family of intracellular Ca2+-dependent cysteine proteases and are considered to play roles in various physiological phenomena with limited proteolytic activities against specific substrates. We herein revealed the expression and localization of calpain 3, the muscle-type calpain, in the s...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2016.05.019
更新日期:2016-10-01 00:00:00
abstract::Destrin, an actin-binding protein, is partly phosphorylated at Ser-2 (numbering on the matured form) in the resting rat parotid gland, and beta-adrenergic or cholinergic stimulation of this gland induces its dephosphorylation. In this study, we searched for the protein kinase involved in phosphorylation of destrin. We...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/s0003-9969(03)00129-8
更新日期:2003-09-01 00:00:00
abstract::The 10,000 g supernatant of wax-stimulated whole saliva was fractionated by gel filtration and its components were tested along with amino acids, small peptides and urea for their ability to stimulate this oxygen uptake, and for their effects on pH. Fractions containing the larger components, the proteins and large pe...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(90)90176-b
更新日期:1990-01-01 00:00:00