Reproducibility of Standing Posture for X-Ray Radiography: A Feasibility Study of the <Emphasis Type="Italic">BalancAid</Emphasis> with Healthy Young Subjects

Unreliable spinal X-ray radiography measurement due to standing postural variability can be minimized by using positional supports. In this study, we introduce a balancing device, named BalancAid, to position the patients in a reproducible position during spinal X-ray radiography. This study aimed to investigate the performance of healthy young subjects’ standing posture on the BalancAid compared to standing on the ground mimicking the standard X-rays posture in producing a reproducible posture for the spinal X-ray radiography. A study on the posture reproducibility measurement was performed by taking photographs of 20 healthy young subjects with good balance control standing on the BalancAid and the ground repeatedly within two consecutive days. We analyzed nine posterior–anterior (PA) and three lateral (LA) angles between lines through body marks placed in the positions of T3, T7, T12, L4 of the spine to confirm any translocations and movements between the first and second day measurements. No body marks repositioning was performed to avoid any error. Lin’s CCC test on all angles comparing both standing postures demonstrated that seven out of nine angles in PA view, and two out of three angles in LA view gave better reproducibility for standing on the BalancAid compared to standing on the ground. The PA angles concordance is on average better than that of the LA angles.     

Spontaneous Contraction of Leukodermic Patches in Waardenburg Syndrome

Waardenburg Syndrome is an autosomal dominantly inherited disorder with variable penetrance (1–5). It is a rare disorder with an estimated frequency of 1:20,000 in Kenya (East Africa) and 1:40,000, in the Netherlands presenting with or without deafness. The frequency with deafness is lower, estimated at 1:50,000 to 1:212,000 (1, 2). The major characteristic features are as follows, with reported incidences in parenthesis: 1) Dystopia canthorum (99%); 2) synophrys (17%–69%); 3) broad nasal root (78%); 4) depigmentation of hair, skin, or both (17%–58% with white forelock); 5) heterochromic or hypochromic irides (greater than 20%); 6) congenital deafness (9%–38%) (1–7). Genetic heterogeneity has led to classification of affected families as type I, with dystopia canthorum, or type II, without dystopia canthorum (2, 6). Piebaldism and Woolf's Syndrome can present with pigmentary changes which are similar to Waardenburg Syndrome (2, 3, 8). Woolf's Syndrome also includes deafness (9). However, the distinguishing structural ophthomologic abnormalities of dystopia canthorum, broad nasal root, and synophrys are not found in either piebaldism or Woolf's Syndrome (2, 3, 8, 9). The congenital patterns of leukoderma in both piebaldism and Waardenburg Syndrome has been believed to be stable throughout the lifetime of the affected individuals (2, 10). We report an otherwise typical family with Waardenburg Syndrome, type I, in which 2 members atypically demonstrate spontaneous pigmentation and contraction of congenital leukodermic patches. To our knowledge, this has not been previously reported in Waardenburg Syndrome (1, 2, 6, 10).     

The neuropsychological phenotype of velocardiofacial syndrome (VCFS): relationship to psychopathology.

Children with velocardiofacial syndrome (VCFS; N=14) and a comparison group of siblings (N=8) underwent comprehensive neuropsychological assessment to examine the relationship between cognitive functioning and psychopathology. Significant group differences were obtained on tests of full scale and verbal intellectual functioning and perceptual-motor skills. With the exception of performance on tests of attention and executive functioning, children with VCFS displayed a profile consistent with nonverbal learning disability (NLD). However, within group comparisons revealed significantly poorer visuospatial intellectual and nonverbal memory functioning in sibling controls as well. No significant group differences were obtained on tests of motor speed, academic, language, attention, memory, or executive functioning, with significant variability in children with VCFS frequently accounting for the lack of robust differences. Parent-report measures revealed profiles consistent with ADHD. No clinically significant symptoms of psychosis, depression or anxiety were noted on either self- or parent-report measures. Wisconsin Card Sorting Test performance was found to be highly and negatively correlated with the Thought Problems subscale of the Child Behavior Checklist (CBCL) for VCFS children only, suggesting a possible at-risk indicator for later onset psychopathology.     

HIV prevalence and risk behaviours among injecting drug users in six indonesian cities implications for future HIV prevention programs

ABSTRACT: BACKGROUND: The HIV prevalence among injecting drug users (IDUs) in Indonesia reached 50% in 2005. While drug use remains illegal in Indonesia, a needle and syringe program (NSP) was implemented in 2006. METHODS: In 2007, an integrated behavioural and biological surveillance survey was conducted among IDUs in six cities. IDUs were selected via time-location sampling and respondent-driven sampling. A questionnaire was administered face-to-face. IDUs from four cities were tested for HIV, syphilis, gonorrhoea and chlamydia. Factors associated with HIV were assessed using generalized estimating equations. Risk for sexual transmission of HIV was assessed among HIV-positive IDUs. RESULTS: Among 1,404 IDUs, 70% were daily injectors and 31% reported sharing needles in the past week. Most (76%) IDUs received injecting equipment from NSP in the prior week; 26% always carried a needle and those who didn't, feared police arrest. STI prevalence was low (8%). HIV prevalence was 52%; 27% among IDUs injecting less than 1 year, 35% among those injecting for 1-3 years compared to 61% in long term injectors (p < 0.001). IDUs injecting for less than 3 years were more likely to have used clean needles in the past week compared to long term injectors (p < 0.001). HIV-positive status was associated with duration of injecting, ever been imprisoned and injecting in public parks. Among HIV-infected IDUs, consistent condom use last week with steady, casual and commercial sex partners was reported by 13%, 24% and 32%, respectively. CONCLUSIONS: Although NSP uptake has possibly reduced HIV transmission among injectors with shorter injection history, the prevalence of HIV among IDUs in Indonesia remains unacceptably high. Condom use is insufficient, which advocates for strengthening prevention of sexual transmission alongside harm reduction programs.     

Elucidating geological and biological processes underlying the diversification of Sulawesi tarsiers

Because of their exceptionally long independent evolution, a range diminution of their Eocene relatives, and a remarkable subsequent diversification in Southeast Asia, tarsiers are of particular importance to evolutionary primatologists. Little is known, however, on the processes shaping the radiation of these small enigmatic primates—especially on the Indonesian island of Sulawesi, their center of endemism. Geological reconstructions and progress in applying DNA sequence information to divergence dating now provide us with the tools and background to comprehend tarsier dispersal. Here, we describe effects of plate-tectonic movements, Pleistocene sea level changes, and hybridization on the divergence of central Sulawesi tarsiers. We analyzed 12 microsatellites, the cytochrome b gene, the hypervariable region I of the mitochondrial control region, and the sex-determining region on the Y-chromosome from 144 specimens captured along a transect crossing a species boundary and a contact zone between 2 microplates. Based on these differentially inherited genetic markers, geographic information, and recordings of vocalizations, we demonstrate that the species boundary coincides with a tectonic suture. We estimate the most recent common ancestor of the 2 taxa to have lived 1.4 Mya, we describe asymmetrical introgressive hybridization, and we give evidence of unbiased dispersal in one species and male-biased dispersal in another species. This study exemplifies that the distribution of tarsier acoustic forms on Sulawesi is consistent with the allocation of genetic variability and that plate-tectonic and glacial events have left traceable marks in the biogeography of this island''s unique fauna.     

Falling through the cracks: contraceptive needs of female sex workers in Cambodia and Laos

Background

Condom is the only method promoted for dual protection among female sex workers (FSWs) in most Asian countries, which may be insufficient to prevent pregnancies given FSWs' high frequency of sexual intercourse.

Study Design

Data were obtained from independent cross-sectional surveillance surveys conducted in Cambodia and Laos. Random samples of FSWs provided behavioral information.

Results

Respondents numbered 592 in Cambodia and 1421 in Laos. In Cambodia, 28.2% had abortions in the past year despite reporting 99.0% condom use at last commercial sex. Abortion increased with the number of clients, inconsistent condom use, recent condom breakage and recent forced unprotected sex with clients. In Laos, 26.0% of all FSWs had ever aborted as had 89.4% of those who had been pregnant in the past 6 months.

Conclusions

FSWs experience higher frequency of abortion than women from the general population. FSWs' reportedly high rate of condom use is insufficient to prevent pregnancies.     

Visceral fat thickness of erosive and non-erosive reflux disease subjects in Indonesia's tertiary referral hospital

BackgroundThere has been an increasing number of reports regarding the correlation between obesity and gastroesophageal reflux disease (GERD). Visceral fat thickness is thought to be a risk factor for GERD and its severity. Several studies have conflicting results, so this study aimed to determine visceral fat thickness difference between erosive and non-erosive reflux disease.MethodsA cross-sectional study of 56 adult subjects with GERD symptoms was held at Cipto Mangunkusumo National General Hospital between April and November 2018. Gastroesophageal Reflux Disease Questionnaires (GERDQ) were utilized to determine the presence of GERD. Ultrasonography was used to determine visceral fat thickness. Esophageal erosions were diagnosed using upper gastrointestinal endoscopy. The difference in visceral fat thickness between esophagitis and non-esophagitis group was analysed using T-test.ResultsFrom 56 total subjects, 55.4% have erosive reflux disease (ERD), in which were dominated by subjects with grade A esophagitis (64.5%) based on Los Angeles Classification of Esophagitis (LA classifications). There was no significant difference of visceral fat thickness between non-erosive reflux disease (NERD) and ERD (p = 0,831). There was, however, an increasing trend of visceral fat thickness with the advancing severity of esophagitis, although statistical significance was not reached.ConclusionVisceral fat thickness as measured by ultrasonography has no significant difference between NERD and ERD.