HealthMap

Open on a desktop browser to explore the interactive map. The knowledge graph needs a larger screen and a pointer. On this device you are limited to the text below.

Dr. Ronald Roth Acu-Cell AI

Vitamin B12 Deficiency and Subacute Combined Degeneration

Yes, absolutely, a deficiency in vitamin B12 is the primary cause of subacute combined degeneration (SBCD).
Subacute combined degeneration specifically refers to the degeneration of the spinal cord's dorsal and lateral columns, which is a classic neurological complication resulting from chronic vitamin B12 deficiency.

Mechanisms and Clinical Implications

Nerve damage: Vitamin B12 is essential for the maintenance of the myelin sheath that insulates and protects nerve fibers throughout the central and peripheral nervous systems.
Demyelination: Without adequate B12, the myelin sheath deteriorates, leading to progressive neurological symptoms.
Key symptoms: Affected individuals typically experience symmetrical paresthesias (tingling or numbness in the hands and feet), loss of proprioception and vibration sense, spasticity, and eventual gait ataxia.

Nutritional and Biochemical Context

Methylmalonic acid and homocysteine: A functional B12 deficiency leads to elevated levels of these metabolites, which are neurotoxic and directly contribute to the pathological changes seen in nerve tissues.
Pernicious anemia: This condition, characterized by an autoimmune inability to absorb B12 in the gut, is a frequent underlying trigger for the severe deficiency states that precipitate subacute combined degeneration.

AI-generated in the approach of Dr. Ronald Roth. Not his own words.

Traversing graph…

Connections

Combined approach - connections

Combined approach ->

Outperforms: Single approach (Modality: may; Degree: superior; Contexts: nutrition and killer disease)

Vitamin B12 deficiency - connections

Vitamin B12 deficiency ->

Causes: Pernicious anemia (Duration: long-term)
Causes: Demyelination (Duration: long-term; Modality: can)
Causes: Nerve damage (Timing: later stages; Reversibility: may not)
Causes: Finger and toe tingling or numbness (Typicality: typical)
Enlarges: Red blood cells (Degree: abnormally)
Harms: Vegetarian children (Degree: much more serious)
Reduces: Platelet formation
Reduces: White blood cells (Duration: long-term)

-> Vitamin B12 deficiency

Folic acid - Causes (Frequency: regularly; Modality: can)
Helicobacter pylori - Causes (Modal: can; Mechanism: lowered stomach acid and parietal-cell damage)
Celiac disease, Malabsorption disorders, Parasites, Small intestine malfunction, Stomach malfunction - Causes (Modality: can)
Small intestine surgical removal, Stomach surgical removal - Causes (Modality: can; Extent: parts)
Stomach acid - Contributes To (Level: low; Independence: H. pylori; Modal: can)

Vitamin B12 - connections

Vitamin B12 ->

Absorbed By: Ruminants (Timing: subsequently)
Associated With: Pernicious anemia (Level: deficient)
Associated With: Anxiety, Heart palpitations, Hypokalemia, Insomnia, Kidney diseases, Liver diseases, Nervousness, Numbness of hands and feet, Palpitations, Panic-anxiety attacks, Peripheral neuropathy, Prostate cancer, Skin rash, Tachycardia (Level: high)
Associated With: Acute myeloblastic leukemia (Level: high; Case count: one)
Associated With: Optic nerve atrophy (Level: high; Condition: Leber's disease)
Associated With: Leukemia (Level: high; Scope: some)
Associated With: Numbness and tingling (Level: high; Side: right; Location: arm or face)
Associated With: Anemia, Anorexia, Apathy, Asthma, Birth defects, Cardiovascular disease with artery-wall damage, Confusion, Dementias, Depression, Dizziness, Fatigue, Glossitis, Headaches, Hypotension, Infertility, Miscarriages, Nausea, Numbness of hands and feet, Palpitations, Peripheral neuropathy, Pernicious anemia, Shortness of breath, Sore tongue (Level: low)
Associated With: Fatigue (Level: low; Degree: severe)
Associated With: Breast cancer (Level: low; Evidence: preliminary or animal data)
Associated With: Nerve damage (Level: low; Manifestation: numbness and tingling; Location: hands and feet)
Associates With: Acute myelogenous leukemia, Chronic myelogenous leukemia (Level: higher; Certainty: research)
Associates With: Heart conditions, Liver conditions (Level: higher; Scope: some; Certainty: research)
Can Cause: Skin rash (Scope: all forms; Certainty: possible; Frequency: relatively rare)
Causes: Calcium deficiency (Condition: unmatched_requirements; Route: injection; Setting: weight_loss_clinic; Frequency: frequently; Degree: severe; Combination: vitamin_b6)
Causes: Folate deficiency (Dose: high; Duration: ongoing; Routes: supplementation or injections)
Causes: Pins and needles (Level: high; Modality: can; Duration: long-term; Condition: without additional folic acid supplementation; Location: fingers and toes)
Causes: Folate-related anemia (Level: high; Modality: can; Folate: low; Duration: long-term; Condition: without additional folic acid supplementation)
Causes: Angina-like chest pain, Panic-anxiety attacks, Tachycardia (Level: naturally high; Frequency: frequently; Cofactor: high cobalt)
Contains: Cobalt (Form: organically complexed)
Impairs: Memory (Level: low)
Improves: Energy, Well-being (Population: most people; Amount: extra)
Increases: Cancer cell division, Tumor cell division (Dose: higher; Certainty: suggested; Form: unspecified)
Increases: Tumor cell division (Level: high; Modality: may)
Increases: Thyroid functions (Level: high; Result: hyperthyroid)
Increases Requirement For: Vitamin B15 (Level: high)
Increases Risk Of: Cancers (Amount: high; Condition: not_indicated; Scope: some; Combination: folic_acid)
Is Associated With: Depression (Source state: high)
Is Associated With: Depression (Source state: low)
Lowers: Homocysteine (Ability: able)
Lowers: Homocysteine (Location: blood)
Overstimulates: Thyroid (Frequency: regular; Route: injection; Combination: vitamin_b6)
Prevents: Cobalt deficiency (Condition: adequate amount)
Prevents: Pernicious anemia (Dose: 1000_to_2000_mcg; Frequency: daily_or_regular; Route: oral_or_injection)
Recommended For: Adults (Scope: all individuals)
Reduces: Shingles symptoms (Dose: very high; Combination: Vitamin C and Vitamin E; Timing: earliest onset of attack; Effectiveness: found effective)
Reduces: Platelet formation, White blood cell formation (Level: low)
Reduces: Appetite, Weight (Level: low; Result: loss)
Requires: Intrinsic factor (Purpose: absorption; Scope: all forms)
Requires For: Carbohydrate metabolism, Fat metabolism, Folate activation, Myelin, Protein synthesis
Requires Supplementation With: Folic acid (Level: high; Duration: long-term; Purpose: prevent listed anemia and sensory symptoms)
Resolves: Psychiatric misdiagnosis (Condition: abnormal status corrected; Modality: could)
Supports: Red blood cell production
Supports: Thyroid functions (Population: most people; Amount: extra)
Treats: Pernicious anemia (Recognition: well-known)
Treats: Hypothyroidism (Severity: very mild; Modality: may)
Utilized By: Ruminants (Timing: subsequently)
Worsens: Mitral valve prolapse (Level: high; Modality: may; Aspect: symptoms)

-> Vitamin B12

Methylmalonic acid - Assesses (Specimen: blood; Condition: deficiency suspected and cellular measurement unavailable)
Cobalt - Associates With (Documentation: well)
Vitamin B6 injections - Combined With (Frequency: usually)
Panic-anxiety disorder - Contraindicates (Certainty: may; Route: injection; Predisposition: disposition; Degree: altogether)
Mitral valve prolapse, Right-sided coronary artery spasms - Contraindicates (Certainty: may; Route: injection; Scope: some; Degree: altogether)
Vitamin B15 - Increases Requirement For (Level: high)
Vitamin B15 - Inhibits
Vitamin C - Inhibits (Dose: large; Certainty: claimed; Theory: possible; Practice: generally absent; Evidence: not confirmed)
Folic acid - Interacts With
Adenosylcobalamin, Cyanocobalamin, Hydroxocobalamin, Methylcobalamin - Is A
Cyanocobalamin, Hydroxocobalamin - Is A (Prominence: main)
Metformin - Lowers (Certainty: may; Population: type_ii_diabetics; Level: lowered)
Vegetarian foods - Not Source Of
Insect- or feces-contaminated fruits and vegetables - Provides (Frequency: generally; Location: lesser developed parts of the world; Population: people growing up in predominantly vegetarian environments or cultures; Contamination: insect or feces)
Vegetarian sources - Provides (Polarity: negative)
Vegetarian sources - Provides (Polarity: negative; Absolute: no)
Vegetarian lifestyle - Requires (Recommendation: should; Amount: extra; Emphasis: children; Location: Western_societies)
Intrinsic factor, Stomach acid - Requires (State: insufficient; Certainty: may; Dose: 1000_to_2000_mcg; Frequency: daily; Alternative: regular_injections)
Dairy, Eggs, Meats, Seafood - Source Of
Vegetarian foods - Source Of (Condition: contaminated; Contaminant: insects or feces)
Cobalt - Synergizes With

Does subacute combined degeneration affect spinal cords in B12 loss? Can vitamin B12 deficiency cause subacute combined degeneration? What food source spinal cord liver contains B12 bound cobalt? What vitamin B12 cobalamin form is central to nerve myelin? Which food source steamed clams provides dense B12 cobalamin? Can low cobalt intake impair vitamin B12 cobalamin synthesis? Can low iron status cause shortness of breath on exertion? Can vitamin B12 deficiency cause numbness in hands and feet? What nutrient deficiency is common in low fat vegan diets? Can low vitamin B12 cause hyperpigmentation on hand knuckles? Can low vitamin B12 deficiency cause gait ataxia (loss of balance while walking)? What primary vitamin deficiency develops in strict vegan diets? Can vitamin B12 deficiency cause glossitis (a smooth red tongue)? Can low vitamin B12 cause numbness and paresthesia in the hands and feet? What vitamin deficiency defines pernicious anemia? Can low vitamin B12 cause megaloblastic red cell enlargement? Can vitamin B12 deficiency cause irreversible nerve damage? Can low vitamin B12 elevate serum homocysteine cardiovascular risk? Can low vitamin B12 cause memory impairment and fatigue? Can low vitamin B12 cause optic neuropathy vision loss?

Overview

Loading graph...

Display TOP 100%

Loading full knowledge graph…

Building graph…

Preparing…

Filter by Relationship

Filter by Type

Some information may be incomplete, disputed, or incorrect. Review the supporting sources.