Category: Liver

Lung and Liver diseases: What is the role of alpha-1 antitrypsin in the body

Alpha-1 antitrypsin is a protein produced in the liver that protects the body’s tissues from being damaged by infection-fighting agents released by its immune system[1]. It is an acute-phase protein and the most abundant serine proteinase inhibitor in human plasma[9]. Its major function is the inhibition of elastase, a substance that can break down tissue, especially in the lung[8]. Alpha-1 antitrypsin is responsible for approximately 90% of the protection against elastolytic activity in the lower airways caused by elastase released from neutrophils[2]. If neutrophil elastases are not opposed, panacinar lung tissue is damaged, and the risk of developing chronic obstructive pulmonary disease (COPD) increases[2].

Alpha-1 antitrypsin deficiency is an inherited condition that can cause lung and liver damage[1]. It is caused by variants in the SERPINA1 gene that provide instructions for making alpha-1 antitrypsin protein[1]. In alpha-1 antitrypsin deficiency, the body’s normal production of alpha-1 antitrypsin is reduced, resulting in the destruction of sensitive lung tissue[1].

Symptoms

The most common symptom of alpha-1 antitrypsin deficiency is shortness of breath after physical activity[8]. Other respiratory symptoms include wheezing, coughing, and recurring respiratory infections[3]. Patients may also experience reduced ability to exercise, fatigue, and rapid heartbeat upon standing[3]. Eventually, patients may develop emphysema, a condition in which the small air sacs in the lungs become damaged[3]. About 10% to 15% of patients with alpha-1 antitrypsin deficiency develop liver disease, with symptoms including a swollen abdomen, swollen feet or legs, and yellowing of the skin and whites of the eyes[3].

Diagnosis

Alpha-1 antitrypsin deficiency may be difficult to diagnose because no single physical sign or symptom can be used to confirm a diagnosis[3]. Genetic testing and blood tests may be used to diagnose the condition[1]. The American Thoracic Society/European Respiratory Society recommends testing high-risk groups, such as all chronic obstructive pulmonary disease patients, all nonresponsive asthmatic adults/adolescents, all cases of cryptogenic cirrhosis/liver disease, subjects with granulomatosis with polyangitis, bronchiectasis of unknown etiology, panniculitis, and first-degree relatives of patients with alpha-1 antitrypsin deficiency[2].

Treatment

There is no cure for alpha-1 antitrypsin deficiency, but the lung diseases that it causes can be treated[5]. The initial treatment is similar to that of emphysema, a type of chronic obstructive pulmonary disease (COPD) [5]. The treatment includes bronchodilators, which make breathing easier by relaxing the muscles around the airways[5]. Bronchodilators can be short-acting or long-acting, and they can be used as needed or every day[5]. Patients may also receive inhaled steroids to reduce inflammation in the airways[5]. In addition, patients should quit smoking and avoid secondhand smoke, protect themselves from environmental dusts or workplace exposure to toxic substances, and get regular exercise and control their weight[10].

The only specific therapy for alpha-1 antitrypsin deficiency is augmentation therapy[5]. During this therapy, preparations of alpha-1 antitrypsin protein that have been isolated from pooled blood of healthy donors are given by weekly intravenous infusion[5]. This elevates the blood levels of alpha-1 antitrypsin to levels that are protective for the lung[5]. Well-designed studies have shown that augmentation therapy helps to preserve lung function and decreases the number and severity of lung infections[5].

In summary, alpha-1 antitrypsin is a protein produced in the liver that protects the body’s tissues from being damaged by infection-fighting agents released by its immune system. Alpha-1 antitrypsin deficiency is an inherited condition that can cause lung and liver damage. Diagnosis may involve genetic testing and blood tests, and treatment may include bronchodilators, inhaled steroids, and augmentation therapy. Patients should also quit smoking, avoid secondhand smoke, protect themselves from environmental dusts or workplace exposure to toxic substances, and get regular exercise and control their weight.

Citations:
[1] https://www.lung.org/lung-health-diseases/lung-disease-lookup/alpha-1-antitrypsin-deficiency/learn-about-alpha-1-antitrypsin-defiency
[2] https://www.ncbi.nlm.nih.gov/books/NBK482180/
[3] https://my.clevelandclinic.org/health/diseases/21175-alpha-1-antitrypsin-deficiency
[4] https://www.atsjournals.org/doi/full/10.1513/AnnalsATS.201507-468KV
[5] https://emedicine.medscape.com/article/295686-overview
[6] https://medlineplus.gov/genetics/condition/alpha-1-antitrypsin-deficiency/
[7] https://medlineplus.gov/ency/article/000120.htm
[8] https://www.sciencedirect.com/topics/medicine-and-dentistry/alpha-1-antitrypsin
[9] https://www.frontiersin.org/articles/10.3389/fphar.2018.00341/full

Chronic liver disease can affect brain health

Chronic liver disease has the potential to impact brain health in a multitude of ways. One prevalent neurological disorder that arises from liver damage is “hepatic encephalopathy,” which entails the degradation of cognitive function as a result of toxins building up in the bloodstream, typically filtered by the liver. The manifestation of hepatic encephalopathy can encompass symptoms such as confusion, anxiety, mood fluctuations, memory impairments, sleep disturbances and even comatose states.

Chronic liver disease may lead to brain damage through the accumulation of manganese in the cerebral cortex, resulting in a syndrome akin to Parkinson’s disease. Manganese is typically eliminated by the liver; however, when hepatic function is compromised, it can accumulate within the bloodstream and settle within specific regions of the brain, particularly those controlling movement such as the basal ganglia.

Chronic liver disease may lead to neuroinflammation, which involves the stimulation of immune cells in the brain that generate inflammatory molecules. Neuroinflammation can hinder neuronal function and viability, as well as contribute to cognitive deterioration and neurological ailments.

Hence, the persistence of liver disease can result in grave ramifications on cognitive processes and brain well-being. It is therefore crucial to promptly seek medical aid and therapy if any indications or signs of hepatic complications or neurological dysfunction arise.

Lactulose and rifaximin serve as the primary pharmacological interventions for hepatic encephalopathy; however, they may elicit certain adverse reactions. Among the potential side effects include.

The diagnosis of hepatic encephalopathy relies on the identification of neurological symptoms, liver function assessments, blood ammonia level examinations and other tests aimed at eliminating alternative causes of brain dysfunction¹². In certain instances, an electroencephalogram (EEG) or a brain imaging scan (CT or MRI) may be conducted to evaluate cerebral activity and structure¹².

Management of hepatic encephalopathy is contingent upon the severity and etiology of the ailment. The primary objectives comprise eradicating toxins from circulation, rectifying predisposing factors, and forestalling reoccurrence¹². Several conventional therapeutic alternatives encompass::

Lactulose: a non-absorbable sugar that lowers the pH of the colon and inhibits the growth of ammonia-producing bacteria. It also acts as a laxative and helps eliminate toxins through stool¹².

Rifaximin: an antibiotic that reduces the number of ammonia-producing bacteria in the gut. It is often used in combination with lactulose for patients with recurrent or persistent hepatic encephalopathy¹².

Other antibiotics: such as neomycin or metronidazole may be used as alternatives to rifaximin, but they have more side effects and are less effective¹².

Zinc supplementation: zinc deficiency is common in patients with liver disease and may contribute to hepatic encephalopathy by impairing the metabolism of ammonia. Zinc supplementation may improve cognitive function and reduce ammonia levels in some patients¹².

Liver transplantation: this is the definitive treatment for patients with end-stage liver disease and severe or recurrent hepatic encephalopathy. It can restore normal liver function and eliminate portal-systemic shunting¹².

In addition to these treatments, it is important to identify and correct any precipitating factors that may trigger or worsen hepatic encephalopathy, such as infections, bleeding, dehydration, electrolyte imbalance, constipation, medications or dietary changes¹². Patients should also avoid alcohol and limit protein intake to avoid excess ammonia production¹².

Source: Conversation with Bing, 6/24/2023

(1) . https://bing.com/search?q=hepatic+encephalopathy+diagnosis+treatment.

(2) Hepatic Encephalopathy: Diagnosis and Management – PMC. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7805282/.

(3) Hepatic encephalopathy – Symptoms, diagnosis and treatment | BMJ Best …. https://bestpractice.bmj.com/topics/en-gb/294.

(4) Treating Hepatic Encephalopathy – American Liver Foundation. https://liverfoundation.org/liver-diseases/complications-of-liver-disease/hepatic-encephalopathy/treating-hepatic-encephalopathy/.

Source: Conversation with Bing, 6/24/2023

(1) Hepatic Encephalopathy: Types, Causes, Symptoms, Treatment. https://my.clevelandclinic.org/health/diseases/21220-hepatic-encephalopathy.

(2) When a diseased liver disrupts the brain: Chronic liver diseases cause …. https://www.sciencedaily.com/releases/2019/08/190819110007.htm.

(3) Neurologic Manifestations of Chronic Liver Disease and Liver Cirrhosis. https://pubmed.ncbi.nlm.nih.gov/25908229/.

Source: Conversation with Bing, 6/24/2023

(1) Rifaximin Uses, Side Effects & Warnings – Drugs.com. https://www.drugs.com/mtm/rifaximin.html.

(2) Rifaximin Side Effects: Common, Severe, Long Term – Drugs.com. https://www.drugs.com/sfx/rifaximin-side-effects.html.

(3) Side effects of lactulose – NHS. https://www.nhs.uk/medicines/lactulose/side-effects-of-lactulose/.

(4) Why do we use Lactulose and Rifaximin for Hepatic Encephalopathy …. https://www.aasld.org/liver-fellow-network/core-series/why-series/why-do-we-use-lactulose-and-rifaximin-hepatic.

Women with irregular periods may be at risk for liver disease

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A recent study has found a potential link between irregular menstrual cycles and an increased risk of liver disease in women. According to the research, those who have irregular periods – defined as periods that occur less than nine times or more than 35 times in a year – may have a higher chance of developing non-alcoholic fatty liver disease (NAFLD) compared to those with a regular cycle.

NAFLD is a common condition that can lead to liver damage if left untreated. While the exact cause of this disease is still unknown, it is believed that factors such as obesity, insulin resistance, and high blood pressure may contribute to its development. However, this new study suggests that hormone fluctuations caused by irregular periods may also play a role.

The study, which involved over 27,000 women, found that those with irregular periods were 37% more likely to develop NAFLD than those with regular periods. The researchers also noted that the risk of liver disease was highest among those who had irregular cycles and were overweight or obese.

While more research is needed to fully understand the link between irregular periods and liver disease, this study highlights the importance of monitoring menstrual cycles and taking steps to maintain a healthy weight. If you have irregular periods, it’s crucial to speak with your healthcare provider about potential health risks and ways to manage them. By taking proactive measures, you can help reduce your risk of developing serious health conditions like NAFLD.

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Liver Cirrhosis: Symptoms, Causes, and Treatment

The liver is the largest internal organ in our bodies, and diseases like liver cirrhosis are dangerous as it performs a disproportionately large number of critical functions. Its primary function is metabolism, which converts food into substances that our bodies can use. It is also a detoxification organ, which renders toxic byproducts harmless and excretes them in the urine or bile.

The liver is vulnerable to aging processes, excessive alcohol consumption, and hepatitis virus infections, which can lead to scarring and inoperable liver tissue. This is known as liver cirrhosis, and more information about symptoms, causes, treatment, and risk factors can be found here.

The liver and its functions

The liver is the largest and heaviest internal organ in the human body, able to regenerate itself. It is wedge-shaped and located in the right upper abdomen, just below the diaphragm. In certain liver diseases, it can be felt without breathing exercises. The liver takes on essential tasks in metabolic processes and serves as an energy store, allowing us to bridge more than 24 hours without food.

  • The metabolism of food components into fats, sugar and proteins in usable form
  • The formation of hormones (transmitters) and cell components, for example from cholesterol
  • The storage of vitamins, proteins, dietary fats and carbohydrates
  • The detoxification of foreign substances and toxins in food, medicines or alcohol
  • The formation of important blood proteins and blood clotting components
  • The production of bile acid to digest fats

Liver cirrhosis: definition

Cirrhosis of the liver is a serious disease that can be fatal in the worst case. It begins with the accumulation of toxic substances that damage tissues, leading to acute liver inflammation and chronic liver inflammation. This leads to decompensated liver cirrhosis, where scarring is already advanced and the risk of liver cancer is greatly increased. The most common causes of death are liver cancer, bleeding from the stomach and esophagus, and liver failure. An estimated one million people in Germany suffer from cirrhosis of the liver, with the frequency of this organ change being greater in obese people than in people of normal weight. Men are affected twice as often as women.

Liver cirrhosis : causes

There are several risk factors that can lead to liver disease. The most common liver cirrhosis causes in Germany are the following:

  • Chronic viral hepatitis accounts for about 25 to 30 percent of cirrhosis cases. It is caused by hepatitis A to E viruses.
  • Alcohol abuse is the most common trigger, accounting for 50 to 60 percent of cirrhosis cases.
  • In addition to these two main causes , diabetes mellitus , fatty liver , various metabolic diseases , medications such as methotrexate, or toxins such as carbon tetrachloride and arsenic can also lead to cirrhosis of the liver.

Cirrhosis of the Liver: Symptoms

Cirrhosis is a condition in which the liver is not properly supplied with blood, leading to increased blood pressure in the portal vein. The symptoms of cirrhosis include decreased toxin production, reduced coagulation, and increased blood pressure.

  • Severe itching , a typical liver cirrhosis weight loss or jaundice
  • Those affected often feel defeated, tired and less productive
  • A feeling of fullness or pressure in the area above the navel is heard
  • Liver skin signs: Total white discoloration of the nails , noticeably reddened lips and clearly red colored pads of the little finger and thumb
  • In the advanced stage, hepatic encephalopathy, increased blood pressure , impaired blood clotting , yellowing of the skin and whites of the eyes, erectile dysfunction and edema in the legs and fever occur

It should be noted, however, that cirrhosis of the liver can often only cause symptoms after many years or even decades. Therefore, if you have symptoms from the list above, consult a doctor as early as possible, as irreversible damage can be pre