Gut feelings: the relations between depression, anxiety, psychotropic drugs and the gut microbiome

The gut microbiome is involved in the bi-directional relationship of the gut - brain axis. As most studies of this relationship are small and do not account for use of psychotropic drugs (PTDs), we explored the relations of the gut microbiome with several internalizing disorders, while adjusting for PTDs and other relevant medications, in 7,656 Lifelines participants from the Northern Netherlands (5,522 controls and 491 participants with at least one internalizing disorder). Disorders included dysthymia, major depressive disorder (MDD), any depressive disorder (AnyDep: dysthymia or MDD), generalized anxiety disorder (GAD) and any anxiety disorder (AnyAnx: GAD, social phobia and panic disorder). Compared to controls, 17 species were associated with depressive disorders and 3 were associated with anxiety disorders. Around 90% of these associations remained significant (FDR <0.05) after adjustment for PTD use, suggesting that the disorders, not PTD use, drove these associations. Negative associations were observed for the butyrate-producing bacteria Ruminococcus bromii in participants with AnyDep and for Bifidobacterium bifidum in AnyAnx participants, along with many others. Tryptophan and glutamate synthesis modules and the 3,4-Dihydroxyphenylacetic acid synthesis module (related to dopamine metabolism) were negatively associated with MDD and/or dysthymia. After additional adjustment for functional gastrointestinal disorders and irritable bowel syndrome, these relations remained either statistically (FDR <0.05) or nominally (P < 0.05) significant. Overall, multiple bacterial species and functional modules were associated with internalizing disorders, including gut - brain relevant components, while associations to PTD use were moderate. These findings suggest that internalizing disorders rather than PTDs are associated with gut microbiome differences relative to controls.

Availability, Prices and Affordability of Selected Essential Cancer Medicines in a Middle-Income Country: The Case of Mexico

Background: More alternatives are becoming available for the diagnosis and treatment of cancer in low- and middle-income countries. Yet, because of increasing demands, many governments are now facing the dilemma of making essential cancer medicines available to all while keeping them affordable. Precise information about current access to these medicines is limited, and there's no systematic methodology in place to do so. Aim: To assess the availability and affordability of essential cancer medicines in Mexico, and compare their prices (public sector procurement and patient prices) against those in other countries of the region. Methods: We adapted the WHO/HAI methodology. We surveyed 21 public hospitals and 19 private pharmacies in 8 states of Mexico. Data were collected on the availability and prices of 49 essential cancer medicines (each strength and dose-form specific). Prices were compared against those in Chile, Peru, Brazil, Colombia and PAHO's Strategic Fund. Results: Of the various medicines, mean availability in public and private sector outlets was 61.2% and 67.5%, respectively. In the public sector, medicines covered by the public health insurance “People's Health Insurance” (SPS) were slightly more available. Only 7 (public sector) and 5 (private sector) out of 49 medicines were deemed affordable. Overall, public sector procurement prices were 41% lower than in other countries of the region. Conclusion: The availability of essential cancer medicines, in the public and private sector, falls below WHO's 80% target. The affordability remains suboptimal as well. A national health insurance scheme could serve as a mechanism to improve access to cancer medicines in the public sector. Comprehensive pricing policies are warranted to improve the affordability of cancer medicines in the private sector.

Contacts of general practitioners with illegal immigrants

AIMS

Violence and economic hardship cause many people to go to industrialized countries, often without obtaining a residence permit. The aim of this study is to gain insight into the factors that determine the occurrence of contacts in primary health care with such illegal immigrants.

METHODS

Data were analysed on contacts with illegal immigrants from a national survey among Dutch general practitioners (GPs) (n = 1,148; response: 62%).

RESULTS

GPs reported that they have on average 0.74 patient contacts with an illegal immigrant per week (95% CI: 0.56-0.92). This probably includes some over-reporting. Contacts are more likely in practices and communities that comprise more non-Dutch-born people and more (patients with) typically urban health problems. Working experience and demography of the GP are not independently associated with the occurrence of contacts.

CONCLUSIONS

Contacts of Dutch GPs with illegal immigrants mostly occur in the deprived areas of the big cities.