Levodopa attenuates the feed intake reduction caused by ergot alkaloids in cattle.

Consumption of ergot alkaloids from endophyte-infected tall fescue results in losses to the livestock industry in many countries and a means to mitigate these losses is needed. The objective of this study was to evaluate intra-abomasal infusion of the dopamine precursor, levodopa (L-DOPA), on dopamine metabolism, feed intake, and serum metabolites of steers exposed to ergot alkaloids. Twelve Holstein steers (344.9 ±â€…9.48 kg) fitted with ruminal cannula were housed with a cycle of heat challenge during the daytime (32 °C) and thermoneutral at night (25 °C). The steers received a basal diet of alfalfa cubes containing equal amounts of tall fescue seed composed of a mixture of endophyte-free (E-) or endophyte-infected tall fescue seeds (E+) equivalent to 15 µg ergovaline/kg body weight (BW) for 9 d followed by intra-abomasal infusion of water (L-DOPA-) or levodopa (L-DOPA+; 2 mg/kg BW) for an additional 9 d. Afterward, the steers were pair-fed for 5 d to conduct a glucose tolerance test. The E+ treatment decreased (P = 0.005) prolactin by approximately 50%. However, prolactin increased (P = 0.050) with L-DOPA+. Steers receiving E+ decreased (P < 0.001) dry matter intake (DMI); however, when supplemented with L-DOPA+ the decrease in DMI was less severe (L-DOPA × E, P = 0.003). Also, L-DOPA+ infusion increased eating duration (L-DOPA × E, P = 0.012) when steers were receiving E+. The number of meals, meal duration, and intake rate were not affected (P > 0.05) by E+ or L-DOPA+. The L-DOPA+ infusion increased (P < 0.05) free L-DOPA, free dopamine, total L-DOPA, and total dopamine. Conversely, free epinephrine and free norepinephrine decreased (P < 0.05) with L-DOPA+. Total epinephrine and total norepinephrine were not affected (P > 0.05) by L-DOPA+. Ergot alkaloids did not affect (P > 0.05) circulating free or total L-DOPA, dopamine, or epinephrine. However, free and total norepinephrine decreased (P = 0.046) with E+. Glucose clearance rates at 15 to 30 min after glucose infusion increased with L-DOPA+ (P < 0.001), but not with E+ (P = 0.280). Administration of L-DOPA as an agonist therapy to treat fescue toxicosis provided a moderate increase in DMI and eating time and increased plasma glucose clearance for cattle dosed with E+ seed.

Fescue has become the dominant cool-season perennial grass in the southeastern region of the United States and is also found in other countries. Endophytes from a plant­fungus symbiotic relationship produce toxic alkaloids that have caused significant annual economic losses to the livestock industry. Treatments to alleviate this toxicosis are still demanded. This study evaluates the infusion of the dopamine precursor, levodopa (L-DOPA), to mitigate the toxicosis caused by ergot alkaloids. When L-DOPA was infused, eating duration increased and the decrease in feed intake caused by ergot alkaloids was less severe. Additionally, circulating dopamine and glucose clearance increased with L-DOPA. These results suggest that L-DOPA has the potential to aid in the mitigation of the toxicosis caused by ergot alkaloids.

A cautionary tale for health education initiatives in vulnerable populations: Improving nutrition in Haiti prisons.

Introduction: Prisons in low-income countries have barriers to providing adequate nutrition to the incarcerated. This perspective discusses a quality improvement program with health education to improve nutrition provided to men in two prisons in Haiti. Methods: Incarcerated men in the National Penitentiary in Port Au Prince and the prison in Mirebalais were the focus of the program. A culturally competent educational intervention was delivered to the prison cooks. Program evaluation included a baseline and a follow-up assessment in 2021 and 2022 in both prisons. Calories, body composition, and nutrition were assessed at both time points. Results: Among 1,060 men assessed in the baseline time period, the mean number of calories per day was 571. Further, 62.5% had a vitamin C intake insufficient to prevent scurvy and 91.6% had vitamin B1 insufficient to prevent beriberi. In the follow-up period, caloric intake decreased to a mean of 454 per day (p < 0.001). The proportion of incarcerated men who had insufficient vitamin C and vitamin B1 to prevent disease increased in the follow-up period. Discussion: The caloric and nutritional intake of incarcerated men in Haitian prisons is poor and is getting worse. The educational intervention with the cooks was not successful due to civil and political strife in the low-income country of Haiti. Standard interventions to improve nutrition need to consider the social context for accessing food.

Prisoner health status at three rural Haitian prisons.

Purpose Little is known about the health status of prisoners in low-income countries. In Haiti, prisons typically lack adequate medical care, clean water and food, though some prisoners receive additional food from visitors. The purpose of this paper is to characterize the physical and mental health of Haitian prisoners in three select prisons and examine the effects of having visitors and length of detention on health status. The authors hypothesized that prisoners with more visitors and shorter detention times would have better overall health status. Design/methodology/approach The authors conducted a cross-sectional study of 290 male inmates in three regional prisons in Haiti. Data were collected on prisoners' sociodemographic characteristics, number of visitors, length of detention, body mass index (BMI), self-reported physical and mental health status, and food insecurity. Findings Overall, prisoners at all three prisons had poor health outcomes. Prisoners with more visitors were significantly less likely to be underweight and more likely to have a higher BMI, better self-reported physical function and lower levels of food insecurity. The length of incarceration was negatively associated with physical function and self-rated health, but positively associated with BMI. These results suggest that prisoners who do not receive supplemental food from visitors are at increased risk for food insecurity and poor nutritional and physical health status. Originality/value These findings demonstrate the importance of supplemental food from visitors in stabilizing prisoner health in Haiti and emphasize the need for the provision of adequate nutrition to all prisoners. This study also suggests that policies that reduce incarceration times could improve health status among prisoners.

Peer health education in Haiti's National Penitentiary: the "Health through Walls" experience.

This field report describes Health through Wall's experience working in the largest men's prison in Haiti. Though there have been many reports of prison peer health education programs, this field report further describes how peers can increase the (self-reported) interest and uptake of HIV testing. More than 400 anonymous surveys were collected. Preliminary results indicate that the peers had a significant impact on self-reported interest in taking the HIV test.

Health care for prisoners in Haiti.

Prisoners have disproportionate health care needs. Meeting those needs in a prison environment is challenging, especially in such resource-poor countries as Haiti. Even so, before the January 2010 earthquake, local and international organizations, in collaboration with the Haitian government, had been making significant progress to provide for the health needs of prisoners. The effort screened and identified prisoners for infectious disease, initiated appropriate care and treatment, and prepared prisoners for release to the community. Not only is it possible to establish an adequate prison health care program in a resource-poor country, it is necessary. Without adequate management of prisoners' health needs, especially for such infectious diseases as HIV and tuberculosis, disease burden increases. Infectious disease can spread among prisoners and impact the public's health. Recovery for postearthquake Haiti, as any nation rebuilding following natural disaster or conflict, requires respect for rule of law. This includes humane detention and the delivery of justice and adequate health care for prisoners.