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Blutwerte · Marker

Alkalische Phosphatase

ALP · AP · Alkaline Phosphatase

Leberwerte
Einheit:
IU/L
Abbreviation
AP / ALP

Alkaline Phosphatase measures the enzyme activity involved in dephosphorylation processes in the liver and bones.

Reference Ranges

Reference
30–120IU/L
30
120
LowNormalHigh
Reference
Unit · IU/L

Reference ranges can vary based on age and sex, with higher levels typically seen in children and adolescents due to bone growth.

Overview

Übersicht

Alkaline Phosphatase (ALP) is an enzyme found in various tissues throughout the body, with high concentrations in the liver, bones, kidneys, and bile ducts. It plays a crucial role in the process of breaking down proteins and is involved in dephosphorylation, which is essential for various metabolic processes. Clinically, ALP is an important biomarker for assessing liver and bone health. Elevated levels can indicate liver disease, bile duct obstruction, or bone disorders, while low levels may suggest malnutrition or certain genetic conditions. In the context of athletic performance and biohacking, ALP levels can reflect bone turnover and liver function, which are important for recovery and overall metabolic health. However, the relevance of ALP in longevity is less clear, as it primarily serves as a marker for acute or chronic conditions rather than long-term health outcomes. Researchers have found that ALP levels can be influenced by factors such as age, sex, and certain medications. Fasting is generally not required for ALP testing, but levels can be affected by recent meals, particularly those high in fat. Time of day does not significantly impact ALP levels, making it a convenient marker for routine health assessments.

Klinische Bedeutung

Elevated ALP levels often indicate liver disease, bile duct obstruction, or bone disorders such as Paget's disease. Low ALP levels may suggest malnutrition, hypothyroidism, or genetic conditions such as hypophosphatasia.

Dynamics

Trend Interpretation

Rising Values

Progressively rising ALP levels suggest worsening liver or bone conditions. Retesting is recommended every 4-6 weeks if levels are outside the normal range.

Falling Values

Decreasing ALP levels may indicate improvement in liver or bone health or resolution of an underlying condition.

Re-test Interval

4 weeks if outside optimal range

Etiology

Causes — High & Low

Cause

Elevated Levels

  • Liver disease
  • Bile duct obstruction
  • Bone disorders
  • Hyperparathyroidism
  • Pregnancy
Cause

Low Levels

  • Malnutrition
  • Hypothyroidism
  • Genetic conditions
  • Zinc deficiency
Protocol

How to Optimize

Lever

Lifestyle

  • Regular exercise
  • Adequate hydration
Lever

Nutrition

  • Balanced diet
  • Adequate protein intake
Lever

Supplementation

  • Zinc
  • Vitamin D

Note:

Consult a healthcare provider before starting any new supplementation, especially if underlying health conditions are present.

Testing Guidelines

✓Fasting Not Required
✓Not Time-Sensitive

ALP levels can vary throughout the day; consistent timing is recommended for follow-up tests.

Testing Frequency

Annually for routine health checks, more frequently if monitoring a known condition.

Interfering Factors

  • Recent high-fat meal
  • Certain medications
  • Pregnancy

Related Peptides & Hormones

hormone or peptide

Open Research Questions

Current research suggests that while alkaline phosphatase (ALP) is a prognostic marker in metastatic castration-resistant prostate cancer, reference ranges and optimal targets for ALP levels in this context remain debated. Researchers have not yet established the full impact of different therapies on ALP dynamics or the confounding effects of other biomarkers. Additionally, clinical questions regarding the integration of ALP with other prognostic indicators to tailor treatment strategies effectively remain unanswered.

47 Research Publications

1,228

Total Citations

20

Human/RCT

2.5

Avg. Influence

2024

Latest

Sort
Filter
#01

Interpretation and clinical significance of alkaline phosphatase isoenzyme patterns.

Van Hoof V O & De Broe M E · Critical reviews in clinical laboratory sciences · 1994

ReviewInfluence4.0
236
This study provided insights into alkaline phosphatase isoenzyme patterns and their clinical significance. Researchers found that interpreting these patterns can offer valuable diagnostic information, especially in liver and bone diseases.

Key findings

  1. 01Researchers observed that ALP has multiple isoenzymes linked to different tissues, including liver and bone.
  2. 02They proposed a new naming system for ALP isoenzymes to reduce confusion and improve clinical interpretation.
  3. 03The study highlighted that analyzing ALP isoenzymes can enhance diagnostic accuracy, especially in liver and bone diseases.
View on PubMed
#02

Laboratory markers predicting severity of acute pancreatitis.

ReviewInfluence12.0
221
Researchers reviewed various biomarkers for predicting the severity of acute pancreatitis. They found that C-reactive protein remains the gold standard, while other markers like procalcitonin and interleukin-6 are not routinely used due to low accuracy and high costs.
View on PubMed
#03

Recent progress and prospects of alkaline phosphatase biosensor based on fluorescence strategy.

Review
127
This review focused on recent developments in fluorescence strategies for detecting alkaline phosphatase (ALP). Researchers observed that abnormal ALP levels are associated with many diseases, and innovative detection methods are needed for precision medicine. The study discussed future trends in ALP detection technology.
View on PubMed
#04

Alkaline phosphatase: a potential biomarker for stroke and implications for treatment.

Review
82
Researchers found that alkaline phosphatase (AP) may serve as a potential biomarker for stroke, examining its biological role and clinical evidence linking AP to stroke-related conditions. They discussed the implications for using AP isoenzymes in stroke diagnostics and treatment.
View on PubMed
#05

Bone marrow involvement in small cell lung cancer. Clinical significance and correlation with routine laboratory variables.

Human
70
This study analyzed bone marrow involvement in small cell lung cancer patients and its correlation with routine laboratory variables. Researchers found significant differences in serum levels of various biomarkers, including alkaline phosphatase, between patients with and without bone marrow metastasis. The study concluded that routine bone marrow examinations may not be necessary for staging small cell lung cancer.
View on PubMed
#06

Overview of Optical and Electrochemical Alkaline Phosphatase (ALP) Biosensors: Recent Approaches in Cells Culture Techniques.

Review
63
Researchers reviewed the use of alkaline phosphatase (ALP) as a biomarker in clinical practice and biomedical research. They found that abnormal ALP levels are significant for diagnosing liver dysfunction, bone diseases, and other conditions.
View on PubMed
#07

Coagulation abnormalities in 22 cats with naturally occurring liver disease.

AnimalInfluence2.0
54
View on PubMed
#08

Role of Interleukin-17 in Acute Pancreatitis.

ReviewInfluence3.0
50
Researchers discussed the role of interleukin-17 in acute pancreatitis. They found that IL-17 contributes to pancreatic tissue damage and may be a target for therapeutic strategies to alleviate the condition.
View on PubMed
#09

Alkaline phosphatase in clinical practice in childhood: Focus on rickets.

ReviewInfluence1.0
44
This review discussed the role of alkaline phosphatase (ALP) in childhood rickets, noting that elevated ALP levels are a marker for diagnosis. Researchers found that ALP is crucial for differentiating rickets from other similar disorders.
View on PubMed
#10

Clinical significance of an increased or decreased serum alkaline phosphatase level.

UnknownInfluence1.0
38
This study examined the clinical significance of varying serum alkaline phosphatase levels. Researchers observed that increased ALP levels can indicate a range of pathological conditions across multiple organs. The study also noted that decreased ALP levels hold diagnostic value.
View on PubMed

Publication Trend

Research publications about Alkalische Phosphatase over time

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