Relationship between thyroid function and sex hormones in female German shepherd dogs

BACKGROUND

Several variables influence the serum concentration of thyroid hormones in dogs, including breed, age, drugs, and concurrent diseases. However, data regarding the interaction between thyroid function and the estrous stage of female dogs are limited.

HYPOTHESIS

Estrous stage may influence thyroid function in German Shepherd dogs.

METHODS

Longitudinal, observational, non-randomized cohort study. The dogs were monitored during the complete estrous cycle, and different stages were determined by vaginal cytology. Two blood samples were collected at the beginning and end of each stage to analyze the following: total thyroxine (TT4), free thyroxine (fT4), total triiodothyronine (TT3), free triiodothyronine (fT3), canine thyrotropin (cTSH), progesterone, 17-β-estradiol, triglycerides, and cholesterol concentrations. Hematological and biochemical evaluations were performed at the beginning and end of the study period.

ANIMALS

Seventeen German Shepherds were included, of which 7 were bred during the study period. One dog was excluded for estrus interruption and another for suspected hypothyroidism.

RESULTS

Serum concentrations of T4, fT4, and fT3 were negatively correlated with age. Total thyroxine demonstrated significant changes in serum concentrations between estrous stages, with higher concentrations in estrus and diestrus. Total thyroxine concentrations were positively correlated with progesterone concentrations and negatively correlated with 17-β-estradiol concentrations. Free thyroxine did not show significant variations but was positively correlated with progesterone concentrations. Canine TSH concentrations were positively correlated with 17-β-estradiol concentrations. No significant differences in thyroid hormones and cTSH concentrations were observed between diestrus during pregnancy and pseudopregnancy.

CONCLUSIONS

Different stages of estrus can influence the measurement of TT4 in female dogs.

Health promotion through collaborative health: a Tuscan model

Background

chronic diseases affect in Italy about 39.1% of the total population and 85.3% of the over 75 years. A new experimental approach has been studied that, through the communities, activate collaborative processes to improve the health and well-being of population. The ASL Toscana Sudest for the three years 2017-2020 has acquired from the Self-management Resource Center (SMRC, University of Stanford California) licenses for implementing self-management programs for chronically ill people. The training process is subject to quality control by SMRC with annual report.

Objectives

the goal is to train participants in the solution of problems, to make decisions, to set objectives and define priorities, to undertake actions for clinical-emotional management and its social role. The self-management education processes carried out have been addressed primarily to the diabetes program.

Results

57 conductors were trained through the administration of 30 hours of frontal lessons to nurses and lay people. Subsequently, the conductors implemented 77 programs in which a total of 750 people participated. Of these, 90% took part in at least four of the six seminars provided for in the program. In addition, a specific program has been launched for a group of 13 Bengali citizens resident in Italy with particular attention to the risk of development of dysmetabolic diseases and the possible correlation with Ramadan.

Conclusions

the engagement of the citizen in terms of Public Health manifests itself with a cumulative impact of small behavioral changes at the level of individuals, communities, and the population. Main message: the project aims to introduce the concept of ‘Collaborative Health' offering concrete examples of experiences already present in the Tuscan context, formulating possible recommendations for stakeholders for the innovation of the system and stimulating greater sustainability, appropriateness and equity of services and health models in Italy.

Key messages

Collaborative health is a winning strategy for health promotion. Chronic diseases are a main topic for health promotion.

Diabetic remission in a cat treated with an implantable pump to deliver insulin

A diabetic cat was referred because of poor metabolic control and difficulties the owner experienced injecting insulin. A pump, telemetrically controlled with a smartphone, was implanted subcutaneously to deliver insulin. Before implantation, the pump reservoir was filled with a rapid-acting human recombinant insulin. The insulin was administered through continuous infusion or periodic boluses over 2 weeks while the cat was hospitalized and over another 2 weeks after discharge from the hospital. Adjustments of insulin dosage were performed based on blood glucose concentrations measured with a continuous blood monitoring system (CGMS). The cat achieved diabetic remission that is still lasting after 1 year. The treatment protocol adopted in this cat contributed to achieving remission. The owner's unwillingness to inject insulin into an uncooperative cat was circumvented with the implantable pump. Key clinical message: The implantable subcutaneous pump, telemetrically controlled by a smartphone, easily allowed the clinician to modify the type of administration and the amount of insulin delivered; the concurrent use of a CGMS allowed detection of sudden changes in blood glucose while limiting stress to the cat.