Glossar: U
Do you have questions about specific symptoms or ingredients? Our glossary provides an A-to-Z guide to your health.
U
127 Posts in this encyclopedia categoryU2 (Newborn Check-Up)
The U2 is the second preventive health check-up for newborns in Germany, conducted between day 3 and day 10 of life, covering essential physical and developmental assessments.
Übersäuerung
Übersäuerung beschreibt eine Störung des Säure-Basen-Gleichgewichts. Erfahre, was medizinisch relevant ist und welche Rolle Ernährung spielt.
Ubiquinol Absorption
Ubiquinol absorption refers to the uptake of ubiquinol (reduced Coenzyme Q10) from the digestive tract into the bloodstream. It is a key factor determining the bioavailability and effectiveness of Coenzyme Q10.
Ubiquinol Absorption Markers
Ubiquinol absorption markers are laboratory parameters used to assess how effectively the body absorbs and utilizes ubiquinol, the active form of Coenzyme Q10.
Ubiquinol Biokinetics
Ubiquinol biokinetics describes how the body absorbs, distributes, metabolizes, and excretes the reduced form of Coenzyme Q10. Understanding these processes is key to optimizing supplementation efficacy.
Ubiquinol Biosynthesis
Ubiquinol biosynthesis is the process by which the human body produces ubiquinol, the reduced and active form of Coenzyme Q10, which is essential for cellular energy production and antioxidant protection.
Ubiquinol Kinetics
Ubiquinol kinetics describes how the body absorbs, distributes, metabolizes, and eliminates the reduced form of Coenzyme Q10. Understanding these processes is key to assessing the bioavailability and effectiveness of ubiquinol supplements.
Ubiquinol Level
The ubiquinol level indicates the concentration of the active form of Coenzyme Q10 in the blood and is a key marker for cellular energy metabolism and antioxidant status.
Ubiquinol Synthesis
Ubiquinol synthesis describes the body's own production of ubiquinol, the reduced form of Coenzyme Q10, which plays a central role in cellular energy production and antioxidant defense.
Ubiquinol Therapy
Ubiquinol therapy uses the reduced, bioactive form of Coenzyme Q10 to support cellular energy production and provide antioxidant protection throughout the body.
Ubiquinone
Ubiquinone, also known as coenzyme Q10, is an essential compound that is found in almost all cells in the human body and plays a crucial role in energy production.
UDH (Union Deutscher Heilpraktiker e.V.)
Die UDH (Union Deutscher Heilpraktiker e.V.) ist ein berufsständischer Verband zur Interessenvertretung von Heilpraktikern in Deutschland.
Ulcer Prophylaxis
Ulcer prophylaxis includes measures to prevent the development of stomach ulcers. It is especially important for high-risk patients taking pain medications or under severe physical stress.
Ulcer Regeneration
Ulcer regeneration refers to the biological healing process of an ulcer, during which damaged tissue is restored. This process is essential for complete recovery.
Ulcer Therapy
Ulcer therapy covers all medical treatments for stomach and duodenal ulcers. The main goals are healing the mucosal lining and preventing recurrence.
Ulcerative colitis
Ulcerative colitis is a chronic inflammatory bowel disease. Find out what causes, symptoms and natural measures such as diet and lactoferrin can help.
Ulcus durum
Ulcus durum is the painless genital ulcer that marks the primary stage of syphilis, caused by the bacterium Treponema pallidum. It is the first visible sign of a syphilis infection.
Ulcus gangraenosum
Ulcus gangraenosum is a rare, severely non-healing skin wound involving tissue death. It is most commonly caused by circulatory disorders or infections and requires prompt medical treatment.
Ulkenia sp.
Ulkenia sp. is a marine microorganism of the thraustochytrid group, widely cultivated as a natural and sustainable source of docosahexaenoic acid (DHA) for use in food and dietary supplements.
Ulnar Artery
The ulnar artery is one of the two main arteries of the forearm, supplying oxygenated blood to the ulnar side of the forearm and the hand.
Ulnar Deviation Syndrome
Ulnar deviation syndrome describes a deformity in which the fingers drift toward the little finger side of the hand. It is most commonly associated with rheumatoid arthritis and can cause pain and loss of hand function.
Ulnar Nerve Compression Syndrome
Ulnar nerve compression syndrome occurs when the ulnar nerve is pinched or compressed, causing pain, numbness, and weakness in the hand and fingers, particularly the ring and little fingers.
Ulnar Nerve Palsy
Ulnar nerve palsy is a condition caused by damage to the ulnar nerve, leading to numbness, weakness, and claw hand deformity. Common causes include compression or injury at the elbow or wrist.
Ulnocarpal
Ulnocarpal refers to the anatomical region and joint structures between the ulna (forearm bone) and the carpal bones of the wrist on the small finger side.
Ultrasound Diagnostics
Ultrasound diagnostics is an imaging technique that uses high-frequency sound waves to visualize organs and tissues inside the body – painless and free of radiation.
Ultrasound Follow-Up
An ultrasound follow-up is a repeat imaging examination using sound waves to monitor organs, tissue, or treatment progress over time, without any radiation exposure.
Ultrasound Massage
Ultrasound massage is a physical therapy method that uses high-frequency sound waves to warm and regenerate tissue. It is commonly used in physiotherapy and pain management.
Ultrasound Therapy
Ultrasound therapy is a physical treatment method that uses high-frequency sound waves to relieve pain and promote tissue healing in muscles, tendons, and joints.
Ultrasound Wave
An ultrasound wave is a mechanical sound wave with a frequency above the range of human hearing (above 20,000 Hz). In medicine, ultrasound waves are used for diagnostic imaging and therapeutic procedures.
Ultraviolet Radiation
Ultraviolet radiation is electromagnetic radiation with wavelengths between 100 and 400 nm. It affects skin health, supports vitamin D synthesis, and carries risks such as sunburn and skin cancer.
Umbilical Cord Stump
The umbilical cord stump is the small remnant of the umbilical cord that remains after birth. It dries out and falls off within 1 to 3 weeks.
Umbilical Hernia
An umbilical hernia occurs when abdominal tissue pushes through a weak spot in the abdominal wall near the navel. It is common in infants and adults alike.
Umbilical Vein Puncture
Umbilical vein puncture is a medical procedure in which a needle or catheter is inserted into the umbilical vein to draw blood or administer medications.
Umbilical Venous Catheter
An umbilical venous catheter (UVC) is a thin tube inserted through the umbilical vein of a newborn to administer medications, fluids, or blood products quickly and safely.
Umckaloabo
Umckaloabo is a herbal medicine derived from the root extract of the Cape pelargonium. It is used to treat respiratory infections such as bronchitis and the common cold.
Understanding a Blood Count
A blood count is one of the most common laboratory tests and provides vital information about your health. Learn what the values mean and how to read them.
Understanding Thyroid Values
Thyroid values show how well the thyroid gland is functioning. A blood test measures TSH, fT3, and fT4 to detect over- or underactivity at an early stage.
Urea Concentration
Urea concentration in the blood is a key laboratory value used to assess kidney function and protein metabolism. Elevated levels may indicate kidney disease or a high-protein diet.
Urea Cream
Urea cream is a moisturizing skin care cream containing the active ingredient urea, which intensively hydrates dry and flaky skin and softens hardened skin layers.
Urea Cycle
The urea cycle is a biochemical metabolic pathway in the liver that converts toxic ammonia into urea, which is then safely excreted through the kidneys via urine.
Urea Cycle Disorder
A urea cycle disorder is an inherited metabolic disease in which ammonia cannot be broken down properly, potentially causing severe neurological damage.
Urea Cycle Disorder
A urea cycle disorder is an inherited metabolic condition in which the body cannot properly convert ammonia into urea. This leads to toxic ammonia buildup in the blood, which can cause serious neurological damage.
Urea Diffusion
Urea diffusion refers to the passive transport of urea across biological membranes. It plays a key role in kidney function and dialysis treatment for patients with renal failure.
Urea Infusion
A urea infusion is a medical treatment in which urea is administered intravenously. It is used to regulate blood urea levels or to achieve specific therapeutic effects such as reducing brain pressure.
Urea Retention
Urea retention refers to the accumulation of urea in the blood due to impaired kidney function. It is a key indicator of kidney failure and reduced renal filtration capacity.
Urea Synthesis
Urea synthesis is a vital biochemical process in the liver that converts toxic ammonia into harmless urea, which is then safely excreted through the urine.
Urea Synthesis
Urea synthesis is a vital metabolic process in the liver that converts toxic ammonia into harmless urea, which is then safely excreted through the kidneys via urine.
Ureaplasma
Ureaplasma are tiny bacteria belonging to the family Mycoplasmataceae and may naturally colonize the urogenital tract of both men and women.
Urease Activity
Urease activity refers to the ability of certain bacteria to break down urea using the enzyme urease. It plays a key role in diagnosing stomach infections and urinary tract diseases.
Uremic Toxin
Uremic toxins are harmful metabolic byproducts that accumulate in the blood when the kidneys can no longer filter them adequately, causing damage to multiple organs.
Ureteral Obstruction
Ureteral obstruction is a partial or complete blockage of the ureter that impairs urine flow from the kidney to the bladder and can lead to kidney damage.
Ureteral Sclerosis
Ureteral sclerosis is a pathological hardening and scarring of the ureteral wall that can obstruct urine flow. It is considered a rare urological condition.
Ureteral Stricture
A ureteral stricture is an abnormal narrowing of the ureter that obstructs urine flow from the kidney to the bladder and can lead to serious kidney damage if left untreated.
Ureteral Stricture
A ureteral stricture is an abnormal narrowing of the ureter that can obstruct the flow of urine from the kidney to the bladder, potentially harming kidney function.
Urethral Dilation
Urethral dilation is a urological procedure used to widen a narrowed urethra. It is performed in cases of urethral stricture to restore normal urinary flow.
Urethral Prolapse
Urethral prolapse is a condition in which the inner lining of the urethra protrudes through the urethral opening. It mainly affects prepubescent girls and postmenopausal women.
Urethral Reconstruction
Urethral reconstruction is a surgical procedure to repair a narrowed or damaged urethra. It restores normal urine flow and significantly improves the quality of life of affected patients.
Urethral Stricture
A urethral stricture is a narrowing of the urethra caused by scar tissue, which restricts urine flow. It can cause painful or difficult urination and requires medical evaluation.
Urethral Stricture Treatment
Urethral stricture treatment includes procedures to widen or reconstruct a narrowed urethra. The goal is to restore normal urine flow and relieve associated symptoms.
Urethritis
Urethritis is an inflammation of the urethra, most commonly caused by bacterial infections. Typical symptoms include burning during urination and urethral discharge.
Uric Acid Diagnostics
Uric acid diagnostics measures uric acid levels in blood or urine. It helps detect gout, kidney stones, and metabolic disorders early and accurately.
Uric Acid Level
The uric acid level measures the concentration of uric acid in the blood. Elevated levels may indicate gout, kidney disorders, or metabolic conditions.
Uric Acid Metabolism
Uric acid metabolism describes the breakdown of purines in the body, producing uric acid as a final product. Disruptions can lead to gout or kidney stones.
Uric Acid Metabolism Disorder
A uric acid metabolism disorder occurs when uric acid levels in the blood are persistently too high or too low, potentially leading to conditions such as gout or kidney stones.
Uric Acid Regulation
Uric acid regulation refers to the body processes that maintain healthy uric acid levels in the blood. Proper balance helps prevent conditions such as gout and kidney stones.
Uric Acid Stone
A uric acid stone is a type of kidney stone that forms when uric acid levels in the urine are too high. It is often linked to a purine-rich diet, gout, or metabolic disorders.
Uridine Biosynthesis
Uridine biosynthesis is a key metabolic pathway through which the body produces the pyrimidine nucleoside uridine. It is essential for RNA production, cell growth, and numerous other cellular processes.
Uridine Biosynthesis Markers
Uridine biosynthesis markers are biochemical indicators that reflect the uridine synthesis pathway in the body and are used in the diagnosis of metabolic disorders.
Uridine Kinase
Uridine kinase is an enzyme that catalyzes the phosphorylation of uridine to uridine monophosphate. It plays a key role in pyrimidine metabolism and is medically relevant as a target in cancer research.
Uridine Monophosphate
Uridine monophosphate (UMP) is a naturally occurring nucleotide that plays a key role in cellular metabolism and brain function. It is used as a dietary supplement to support cognitive health.
Uridine Phosphate
Uridine phosphate is a nucleotide-based compound that plays a central role in human metabolism. It occurs in multiple phosphorylation forms and is involved in numerous biosynthetic processes throughout the body.
Uridine Supplement
A uridine supplement provides the nucleobase uridine as a dietary supplement. It is used to support nerve function, memory, and cellular metabolism.
Uridine Synthesis Pathway
The uridine synthesis pathway describes the biochemical steps by which the body produces uridine, a key building block of RNA and an essential component of cellular metabolism.
Urinalysis
Urinalysis is a diagnostic examination of urine that provides important information about kidney function, urinary tract conditions, and metabolic disorders.
Urinary Iodine Excretion
Urinary iodine excretion measures the amount of iodine the body eliminates through urine and is the key biomarker for assessing iodine status and nutritional iodine intake.
Urinary Protein
Urinary protein refers to protein molecules detected in urine. Elevated levels may indicate kidney disease or other underlying health conditions and require medical evaluation.
Urinary Protein Markers
Urinary protein markers are proteins detected in urine that serve as diagnostic indicators of kidney or systemic disease. Their measurement helps clinicians identify kidney damage at an early stage.
Urinary Retention
Urinary retention is the inability to fully empty the bladder. It can occur acutely or chronically and often requires prompt medical attention.
Urinary Tract Infection (Cystitis)
Cystitis is a bacterial infection of the bladder causing pain during urination and frequent urges to urinate. It is most common in women and is usually easily treated.
Urinary Tract Infection Prevention
Urinary tract infection (UTI) prevention includes measures to reduce the risk of bacterial infections in the bladder and urinary tract. Key strategies include hydration, hygiene, and targeted supplementation.
Urinary Tract Infection Prophylaxis
Urinary tract infection prophylaxis includes measures to prevent recurring UTIs. It is especially relevant for people with frequent infections, combining lifestyle changes, natural remedies, and medical treatments.
Urinary Tract Infection Prophylaxis
Urinary tract infection prophylaxis includes targeted measures to prevent recurring bladder infections. Discover which strategies are most effective for long-term protection.
Urinary Tract Infection Risk
The risk of urinary tract infections is influenced by several factors. Learn which groups are most vulnerable and how to effectively reduce your personal risk.
Urination Disorder
A urination disorder refers to any dysfunction of the normal process of urination, including symptoms such as pain, urgency, or incomplete bladder emptying.
Urine Biomarker Analysis
Urine biomarker analysis is a diagnostic method that measures specific biological markers in urine to detect diseases at an early stage or to monitor the course of treatment.
Urine Biomarkers
Urine biomarkers are measurable biological substances found in urine that provide information about health status, diseases, or organ function. They are widely used in medical diagnostics.
Urine Cell Markers
Urine cell markers are diagnostic biomarkers detected in urine samples used to identify bladder cancer and other urinary tract conditions at an early stage.
Urine Culture
A urine culture is a microbiological laboratory test used to detect urinary tract infections. It identifies the causative pathogen and determines its sensitivity to antibiotics.
Urine Cytology
Urine cytology is a diagnostic test in which cells found in urine are examined under a microscope. It is primarily used to detect bladder cancer and other urinary tract conditions.
Urine Leukocyte Count
The urine leukocyte count measures the number of white blood cells in urine. Elevated levels may indicate a urinary tract infection or kidney inflammation.
Urine Nitrite
Urine nitrite is a marker in urinalysis that can indicate a bacterial urinary tract infection. A positive nitrite result occurs when certain bacteria convert nitrate into nitrite.
Urine Protein Test
The urine protein test measures the amount of protein in urine and helps detect kidney or metabolic disorders at an early stage. It is a key tool in preventive care and medical diagnosis.
Urine Sediment
Urine sediment is a microscopic examination of urine that analyzes cellular components, crystals, and other particles. It provides important diagnostic information about kidney and urinary tract conditions.
Urogenital Fistula
A urogenital fistula is an abnormal connection between the urinary tract and the genital tract. It causes uncontrolled urine leakage and usually requires surgical repair.
Urogenital Prophylaxis
Urogenital prophylaxis refers to preventive measures that protect the urinary tract and genital organs from infections and related conditions.
Urogenital Tuberculosis
Urogenital tuberculosis is a bacterial infection of the urinary and genital organs caused by Mycobacterium tuberculosis. It is the most common form of extrapulmonary tuberculosis.
Urolithiasis
Urolithiasis refers to the formation of stones in the urinary tract. It can cause severe pain, blood in the urine, and urinary problems, often requiring medical treatment.
Urolithiasis Prevention
Urolithiasis prevention includes all measures to reduce the formation of urinary stones. Diet, fluid intake, and lifestyle changes can significantly lower the risk of recurrence.
Urolithin A
Urolithin A is a natural metabolite produced in the gut from plant polyphenols. It supports cellular health, mitochondrial function, and muscle strength.
Uronic Acid
Uronic acids are oxidized sugar compounds found in human metabolism and plants. They play a key role in the formation of connective tissue, proteoglycans, and dietary fiber.
Urothelial Anti-Inflammatory Protection
Urothelial anti-inflammatory protection refers to biological and medical measures that shield the bladder lining from inflammation, playing a key role in preventing urinary tract infections.
Urothelial Carcinoma
Urothelial carcinoma is a malignant tumor arising from the lining of the urinary tract. It most commonly affects the bladder but can also involve the ureters and renal pelvis.
Urothelial Inflammation
Urothelial inflammation refers to inflammation of the mucous membrane lining the urinary tract. It can affect the bladder, ureters, or urethra and often causes pain and a frequent urge to urinate.
Urothelial Protection
Urothelial protection refers to measures that safeguard the bladder lining from irritation, inflammation, and chemical damage, especially during chemotherapy or in chronic bladder conditions.
Urothelial Protection Therapy
Urothelial protection therapy safeguards the bladder lining from toxic substances, especially during chemotherapy. Learn about its use, mechanism, and benefits.
Urothelial Regeneration
Urothelial regeneration refers to the renewal of the urothelium, the mucosal lining of the bladder, ureters, and urethra. It is essential for maintaining the protective barrier of the urinary tract.
Uterine curettage
Uterine curettage is a gynecological procedure in which the lining of the uterus is scraped or suctioned using a surgical instrument. It is used for both diagnostic and therapeutic purposes.
Uterine Fibroid
A uterine fibroid is a benign tumor of the uterine muscle. Fibroids are common and can cause symptoms such as heavy menstrual bleeding or pelvic pain.
Uterus Removal
Uterus removal, known medically as a hysterectomy, is a surgical procedure in which the uterus is removed. It is performed for various gynecological conditions.
UV radiation
UV radiation is part of sunlight and consists of invisible electromagnetic waves, which are divided into three categories: UV-A, UV-B and UV-C.
UVA Radiation
UVA radiation is a component of the sun's ultraviolet light, covering wavelengths of 320–400 nm. It penetrates deep into the skin and is a leading cause of premature skin aging and skin cancer.
UVB Radiation
UVB radiation is a component of the sun's ultraviolet light with wavelengths between 280 and 315 nm. It supports vitamin D production in the skin but can cause sunburn and skin cancer with excessive exposure.
Uveitis Treatment
Uveitis treatment aims to reduce inflammation inside the eye, relieve pain, and prevent serious complications such as vision loss. Early diagnosis is essential.
Uvula Inflammation
Uvula inflammation (uvulitis) is a swelling and irritation of the uvula, the small tissue hanging at the back of the throat. It can be caused by infection, allergies, or irritants.
Die neusten Einträge
3 Posts in this encyclopedia categoryBlood Capillary Analysis
Blood capillary analysis is a diagnostic method in which a small amount of blood is taken from the tiny capillary vessels and examined. It provides fast, patient-friendly laboratory results.
Collagen Biosynthesis Markers
Collagen biosynthesis markers are laboratory parameters that indicate the rate of new collagen formation in the body, used in the diagnosis of bone, joint, and connective tissue disorders.
Fetoplacental Unit
The fetoplacental unit describes the functional collaboration between the fetus and the placenta in hormone production and nutrient supply throughout pregnancy.
Die meistgelesenen Einträge
3 Posts in this encyclopedia categoryMagnesiumcarbonat
Magnesiumcarbonat ist eine anorganische Magnesiumverbindung mit säure-neutralisierender (antazidischer) Wirkung. Erfahre mehr über Vorteile, Einsatzgebiete und Unterschiede zu besser resorbierbaren Magnesiumformen.
Cologne list
The Cologne List ® is an important initiative in competitive sports that offers athletes guidance in the selection of nutritional supplements.
Calorie content
The choice of food influences our energy intake. The calorie content varies greatly - some provide little energy, others a lot.