Association of comprehensive knowledge on HIV/AIDS and discriminatory attitudes towards people living with HIV/AIDS (PLWHA) among Filipino women

Background@#The Philippines is among the countries with the fastest growth rate of HIV cases in the Asia-Pacific Region. HIV/AIDS stigma and discrimination are recognized as major barriers, directly and indirectly inflicting harm to people living with HIV/AIDS (PLWHA). Despite this, there is a lack of studies regarding HIV/AIDS discrimination in the Philippines. This study aimed to assess the association between comprehensive knowledge on HIV/AIDS and discriminatory attitudes towards PLWHA among women in the Philippines. @*Methodology@#Secondary data analysis was done using the Philippine National Demographic Health Survey (2017). Twenty two thousand eight hundred thirteen (22,813) Filipino women aged 15-49 years old were included in this study. Multiple logistic regression was performed to determine the association between comprehensive knowledge and discriminatory attitudes. The final model was built using the change in estimate criterion and sampling weights were applied. @*Results@#More than 3 out of 4 (76.87%) had discriminatory attitudes towards PLWHA, whereas only 1 out of 4 (26.24%) had comprehensive knowledge on HIV/AIDS. Results of multiple logistic regression reveal that women without comprehensive knowledge are 2.53 times more likely to have discriminatory attitudes towards PLWHA (OR= 2.53, 95% CI =2.26-2.84). @*Conclusion@#Given that women without comprehensive knowledge are more likely to have discriminatory attitudes, HIV/AIDS campaigns may be strengthened by integrating necessary concepts in comprehensive sexual education and conducting more active nationwide information and education campaign efforts. Moreover, there is a need to formally evaluate the overall effectiveness of existing interventions.

Safety assessment of Gram-negative bacteria associated with traditional French cheeses.

Twenty Gram-negative bacterial (GNB) strains were selected based on the biodiversity previously observed in French traditional cheeses and their safety was assessed considering various safety criteria. For the majority of tested GNB strains, only gastric stress at pH 2 (vs pH 4) resulted in low survival and no regrowth after an additional simulated gastro-intestinal stress. Presence of milk was shown to be rarely protective. The majority of strains was resistant to human serum and had a low level of adherence to Caco-2 cells. When tested for virulence in Galleria mellonella larvae, GNB strains had LD 50 values similar to that of safe controls. However, four strains, Hafnia paralvei 920, Proteus sp. (close to P. hauseri) UCMA 3780, Providencia heimbachae GR4, and Morganella morganii 3A2A were highly toxic to the larvae, which suggests the presence of potential virulent factors in these strains. Noteworthy, to our knowledge, no foodborne intoxication or outbreak has been reported so far for any of the GNB belonging to the genera/species associated with the tested strains. The role of multiple dynamic interactions between cheese microbiota and GIT barriers could be key factors explaining safe consumption of the corresponding cheeses.

Validation of a predictive model coupling gas transfer and microbial growth in fresh food packed under modified atmosphere.

Predicting microbial safety of fresh products in modified atmosphere packaging implies to take into account the dynamic of O2, CO2 and N2 exchanges in the system and its effect on microbial growth. In this paper a mechanistic model coupling gas transfer and predictive microbiology was validated using dedicated challenge-tests performed on poultry meat, fresh salmon and processed cheese, inoculated with either Listeria monocytogenes or Pseudomonas fluorescens and packed in commercially used packaging materials (tray + lid films). The model succeeded in predicting the relative variation of O2, CO2 and N2 partial pressure in headspace and the growth of the studied microorganisms without any parameter identification. This work highlighted that the respiration of the targeted microorganism itself and/or that of the naturally present microflora could not be neglected in most of the cases, and could, in the particular case of aerobic microbes contribute to limit the growth by removing all residual O2 in the package. This work also confirmed the low sensitivity of L. monocytogenes toward CO2 while that of P. fluorescens permitted to efficiently prevent its growth by choosing the right combination of packaging gas permeability value and initial % of CO2 initially flushed in the pack.

Short-term effect of crural fasciotomy on kinematic variability and propulsion during level locomotion.

Treadmill locomotion can be characterized by consistent step-to-step kinematics despite the redundant degrees of freedom. The authors investigated the effect of disrupting the crural fascia in decerebrate cats to determine if the crural fascia contributed to kinematic variability and propulsion in the limb. Crural fasciotomy resulted in statistically significant decreases in velocity and acceleration in the joint angles during level walking, before, during, and after paw-off, particularly at the ankle. A further finding was an increase in variance of the limb segment trajectories in the frontal plane. The crural fascia therefore provides force transmission and reduction in kinematic variability to the limb during locomotion.

Modelling the competitive growth between Listeria monocytogenes and biofilm microflora of smear cheese wooden shelves.

The aim of this study was to investigate the mechanism of the observed inhibition of Listeria monocytogenes by the natural biofilm microflora (BM) on wooden shelves used in the ripening of a soft and smear cheese. For this, BM was harvested and we conducted a series of experiments in which two strains of L. monocytogenes were co-cultured with BM on glass fiber filters deposited on model cheeses. Compared to monoculture, L. monocytogenes growth rate in co-culture was not reduced but the growth of the pathogen stopped as soon as BM entered the stationary phase. This reduction in maximum population density can be explained by nutrient consumption and exhaustion by BM as no production of inhibitors by BM has been detected. This mechanism of pathogen inhibition has been previously described as the "Jameson effect".

[Prevention of Listeria monocytogenes contamination on dairy farms and in the cheese industry]. / Maîtrise de la contamination par Listeria monocytogenes dans les exploitations laitières et l'industrie fromagère.

Listeria monocytogenes remains a pathogen bacteria the prevention of which, in food products, stays delicate. A complete organization, from the farmer's production to the industry and the consumer is necessary to eliminate Listeria in a type of food product. Listeria monocytogenes is susceptible of contaminate raw milk. The silage may be a major source of the occurrence of Listeria monocytogenes in raw milk. In this case, the contamination sources in a dairy farm and the good hygienic practices must be well-defined. In dairy industry, the contamination must be managed by the application of a systematic and methodically system like H.A.C.C.P. (Hazard Analysis Critical Control Points). It is useful for the study of Listeria monocytogenes contamination and involve the hazard analysis of each industry plant. In fact, the raw products, food products, manufacturing process, environmental conditions, process equipment, materials and staff organizational are specific and characteristic.

Effect of pilocarpine on intraocular pressure in ocular hypertensive subjects.

In normal subjects, ocular administration of pilocarpine results in initial elevation of IOP succeeded by a fall. We have now examined the effect of pilocarpine on IOP in nontreated ocular hypertension. Our results demonstrate that the initial hypertensive phase is absent in these patients and that the subsequent hypotensive phase is more marked than in normotensive eyes. It is suggested that in normal eyes IOP is regulated by two opposing cholinergic effects, and imbalance the two may lead to ocular hypertension (or hypotension).