***TASK***
the task is to simplify the input abstract of a biomedical literature

***INPUT***
the input is the abstract of a biomedical literature

***OUTPUT***
the output is the simplified abstract for the input abstract of a biomedical literature

***DOCUMENTATION***

***EXAMPLES***

Input: Four randomised controlled trials with up to three months duration and investigating 479 participants met the inclusion criteria. Risk of bias of these trials (only two studies were published as a full peer-reviewed publication) was generally high. Two RCTs compared the effects of preparations from different parts of the momordica charantia plant with placebo on glycaemic control in type 2 diabetes mellitus. There was no statistically significant difference in the glycaemic control with momordica charantia preparations compared to placebo. When momordica charantia was compared to metformin or glibenclamide, there was also no significant change in reliable parameters of glycaemic control. No serious adverse effects were reported in any trial. No trial investigated death from any cause, morbidity, health-related quality of life or costs. There is insufficient evidence on the effects of momordica charantia for type 2 diabetes mellitus. Further studies are therefore required to address the issues of standardization and the quality control of preparations. For medical nutritional therapy, further observational trials evaluating the effects of momordica charantia are needed before RCTs are established to guide any recommendations in clinical practice.
Output:

This review of trials found only four studies which had an overall low quality. Three trials showed no significant differences between momordica charantia and placebo or antidiabetic drugs (glibenclamide and metformin) in the blood sugar response. The duration of treatment ranged from four weeks to three months, and altogether 479 patients with type 2 diabetes mellitus participated. No trial investigated death from any cause, morbidity, health-related quality of life or costs. Adverse effects were mostly moderate, including diarrhoea and abdominal pain. However, reporting of adverse effects was incomplete in the included studies. There are many varieties of preparations of momordica charantia, as well as variations in its use as a vegetable. Further studies are needed to assess the quality of the various momordica charantia preparations as well as to further evaluate its use in the diet of diabetic people.