The answer is D) carbon forms both single and double bonds.
A group of Chinese women with PCOS who were receiving treatment saw several metabolic and hormonal imbalances improve after taking BBR. The primary consequences may be connected to the modifications in body composition in obesity and dyslipidemia. For the evaluation of the possible beneficial metabolic effects of BBR in women with PCOS, additional controlled trials are required.
PCOS:
- Objective: Insulin resistance is a common metabolic and reproductive condition called polycystic ovarian syndrome (PCOS) (IR). A quinoline derivative alkaloid known as berberine (BBR) has been utilized as an insulin sensitizer and is isolated from Chinese medicinal herbs. There may be a therapeutic benefit for PCOS from BBR. The purpose of this study was to compare the effects of BBR and metformin (MET) on the metabolic characteristics of PCOS-affected women.
- Design and methods: Ninety nine PCOS and IR patients were randomly assigned to one of three therapy groups: BBR+ compound cyproterone acetate (CPA;
), MET
CPA
, and placebo CPA 
for 
months. Before and after the treatment period, metabolic and hormonal measures as well as the clinical characteristics of the women were evaluated. - Results: Reduced waist circumference, waist-to-hip ratio (WHR;P<
), total cholesterol (TC), triglycerides (TG), and low-density lipoprotein cholesterol (LDLC; P<
), as well as increased levels of high-density lipoprotein cholesterol (HDLC) and sex hormone-binding globulin (SHBG; P<) were all observed following treatment with BBR as compared to MET. Similarly, BBR treatment decreased WHR, fasting plasma glucose, fasting insulin, homeostasis model evaluation for IR, area under the insulin curve, TC, LDLC, and TG (P<), while increasing HDLC and SHBG (P<) as compared to placebo.
Learn more about PCOS here brainly.com/question/9178980
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Answer:
A = Activator
B = Effector
Explanation:
An activator is a protein which typically binds to a short (50–1500 bp) region of DNA which might be located either upstream (mainly) or downstream of a gene so as to cause increased transcription. This particular region of DNA is known as enhancer and activator is also known as transcription factor. Activator is a trans-acting factor which binds to the cis-acting factor which is enhancer so as to enhance transcriptional expression.
But another protein named as effector may restrict activator from binding to the enhancer leading to a decrease in transcriptional expression by binding to the activator allosterically. Allosteric binding of effector to the activator causes conformational change in activator so it can no longer bind the enhancer.
One of the differences between the cell membrane and the cell wall is in the type of organisms that they are found in. A cell wall is found in plants only. A cell membrane is found in all organisms including plants. Present only in plants, and in some fungi, bacteria, algae.
It’s not B or C. I want to say A but I’m not 100% sure
