The Effect of Serum Leptin Concentration and Leptin Receptor Expression on Colorectal Cancer

INTRODUCTION

The level of leptin in the blood shows a positive, strong correlation with the mass of adipose tissue. Being overweight and having metabolic disorders increase the risk of developing colorectal cancer.

AIM OF THE PAPER

The aim of the study was to assess the concentration of leptin in the blood serum as well as the expression of the leptin receptor in colorectal cancer cells. In addition, the effect of serum leptin concentration and leptin receptor expression on clinical and pathological parameters such as BMI, obesity, TNM, and tumor size was assessed.

METHODS

The study included 61 patients diagnosed with colorectal cancer and treated with surgery.

RESULTS

Strong leptin receptor expression and the prevalence of overweight and obesity are factors influencing the occurrence of excessive leptin concentrations.

CONCLUSION

Leptin may be involved in the development and progression of colorectal cancer. More research is needed to better elucidate the role of leptin in the development and progression of the disease.

Quality of Life after Bariatric Surgery-A Systematic Review

Background: Most studies analyzing the health-related quality of life (HRQOL) after bariatric treatment ceased at five years post-surgery or even earlier, and it is unclear whether the HRQOL benefit persists for a longer time. This paper reviews sparse evidence regarding HRQOL in patients who underwent bariatric surgery at least nine years prior. Materials and Methods: A of PubMed, Scopus and Google Scholar between 2007–2021 was carried out for the studies investigating HRQOL as an outcome measure in patients after bariatric surgery of any type and having at least a 9-year follow-up. Inconsistent reporting of weight loss or postgraduate study results unrelated to QoL were not included in the study. The study used the PICO procedure. Results: The review of 18 identified publications demonstrated that bariatric treatment seems to provide a persistent benefit in terms of HRQOL, especially its physical component score. Due to psychological predispositions, some patients appear to be less likely to benefit from bariatric treatment, whether in terms of HRQOL or bodyweight reduction. Inconsistent and imprecise studies may limit the evidence included in a review. Conclusions: The early identification of such patients and providing them with holistic care, including psychological intervention, would likely further improve the outcomes of bariatric treatment.

The effect of bariatric procedures on selected laboratory parameters of patients from rural areas in Poland

BACKGROUND

Rural areas in Poland are inhabited by over 15 million people, i.e. 39.5% of Polish population, including about 5 million rural residents in the Podlaskie province. The incidence of obesity is associated with increased prevalence of obesity-related conditions. Studies that have been conducted do not confirm the efficacy of conservative treatment of obesity, but show that bariatric procedures produce the best longterm results.

OBJECTIVES

The aim of the study was to present the effects of bariatric obesity treatments (laparoscopic adjustable gastric banding [LAGB], sleeve gastrectomy [SG], Roux-en-Y gastric bypass [RYGB]) on body mass index (BMI), selected diabetes control parameters, dyslipidemia, hepatic and renal enzymes, blood count and hypertension control.

MATERIAL AND METHODS

The study group comprised a total of 100 consecutive patients from rural areas qualified for bariatric procedures. Most of the patients (69.07%) underwent SG; 11.34% underwent LAGB; and 19.59% underwent RYGB. Comorbidities included hypertension (35%), type 2 diabetes (52%) and hyperlipidemia (15%). Glucose, insulin, HbA1C, alanine and aspartate aminotransferase, bilirubin, total and fraction cholesterol, creatinine, urea, uric acid and CRP levels, as well as blood count and blood pressure values, were assessed prior to surgery and during follow-up visits 3 and 6 months after the procedures. BMI, percentage of excess weight loss (%EWL) and percentage of excess body mass index loss (%EBMIL) were assessed.

RESULTS

Consistent, significant decreases in BMI were observed 3 months (39.31 ± 4.70) and 6 months (35.74 ± 4.52) after surgery. The largest BMI reduction at the 6-month follow up was observed for SG (12.29%), and the smallest was observed for LAGB (9.02%).

CONCLUSIONS

Improvements in the general health status of the patients were observed, as well as normalization of metabolic parameters (glucose, cholesterol, triglycerides, hepatic enzymes).

Effect of BMI on quality of life and depression levels after bariatric surgery

BACKGROUND

Studies conducted in Poland have found that 1% (~300,000) of Polish adults are obese. The degree of weight loss and reduction of discomfort associated with severe obesity are used to evaluate bariatric surgery outcomes. From the patient's point of view, QoL and mental health are the most important determinants of successful surgery, which is why interest in QoL assessment has increased.

OBJECTIVES

To assess the effect of BMI on quality of life and depression levels depending on the type of bariatric surgery.

MATERIAL AND METHODS

The group included 57 women and 43 men aged 20-60 years (mean age 40 years) with BMI from 36 to 40 (31%) and > 40 (69%). Twelve patients (12%) underwent laparoscopic adjustable gastric binding (LAGB), 58 (58%) sleeve gastrectomy, and 30 (30%) Roux-en-Y Gastric Bypass (RYGB). The Bariatric Analysis and Reporting Outcome System (BAROS) was used to assess QoL. The severity of mood disorders was assessed using the Self-Rating Scale of Depression and Anxiety.

RESULTS

Six months or 1 year after bariatric surgery, the number of patients with BMI > 40 had decreased from 69 to 14%. We found that the time since bariatric surgery contributed to a significant (p < 0.01) difference in BAROS outcomes. In the long-term perspective, we observed better quality of life.

CONCLUSIONS

MA-QoL II is a useful tool in assessing bariatric surgery, including quality of life. Long-term monitoring will be essential in determining psychological changes and the degree of weight loss.