LEPD
MCID: LPT014
MIFTS: 74

Leptin Deficiency or Dysfunction (LEPD)

Categories: Endocrine diseases, Genetic diseases, Metabolic diseases, Neuronal diseases, Rare diseases, Reproductive diseases

Aliases & Classifications for Leptin Deficiency or Dysfunction

MalaCards integrated aliases for Leptin Deficiency or Dysfunction:

Name: Leptin Deficiency or Dysfunction 56 12 52 73 29 6 71
Obesity Due to Congenital Leptin Deficiency 12 52 25 58 73
Morbid Obesity 12 29 6 15 17
Lepd 56 12 52 25 73
Obesity, Morbid, Due to Leptin Deficiency 56 25 13
Leptin Deficiency 25 73 36
Obesity, Severe, Due to Leptin Deficiency 25 39
Obesity, Morbid, Nonsyndromic 1 52 25
Congenital Leptin Deficiency 12 25
Obesity, Morbid 56 43
Severe Obesity 12 15
Morbid Obesity Due to Leptin Deficiency 73
Non-Syndromic Morbid Obesity 1 73
Leptin Dysfunction 6
Obesity Morbid 54
Leptin 17

Characteristics:

Orphanet epidemiological data:

58
obesity due to congenital leptin deficiency
Inheritance: Autosomal recessive; Prevalence: <1/1000000 (Worldwide); Age of onset: Childhood;

OMIM:

56
Inheritance:
autosomal recessive

Miscellaneous:
some patients have a secreted but biologically inactive mutant leptin
hyperphagia and weight gain as well as immunologic abnormalities and hypogonadism can be reversed by exogenously administered recombinant leptin
patients do not exhibit risk factors for cardiovascular disease such as hypertension, lipid dysregulation, or hyperglycemia
immune and endocrine function may improve in some adult patients


HPO:

31
leptin deficiency or dysfunction:
Inheritance autosomal recessive inheritance


Classifications:

Orphanet: 58  
Rare infertility disorders
Rare gynaecological and obstetric diseases
Rare endocrine diseases


Summaries for Leptin Deficiency or Dysfunction

NIH Rare Diseases : 52 The following summary is from Orphanet , a European reference portal for information on rare diseases and orphan drugs. Orpha Number: 66628 Definition Congenital leptin deficiency is a form of monogenic obesity characterised by severe early-onset obesity and marked hyperphagia. Epidemiology It has been described in less than 30 patients. Clinical description Patients with congenital leptin deficiency are severely hyperphagic from early infancy and, although birthweight is normal, they rapidly become obese during early childhood. An increased susceptibility to infections has also been reported in these infants and appears to be associated with reduced numbers of circulating CD4+ T cells , and impaired T cell proliferation and cytokine release. Other features of the disorder include hyperinsulinaemia, advanced bone age, hypothalamic hypothyroidism and hypogonadotropic hypogonadism leading to a failure to undergo puberty. Etiology Leptin is an adipocyte-derived hormone that plays an important role in energy balance and appetite suppression. Whilst the majority of obese patients display hyperleptinaemia, patients with congenital leptin deficiency have undetectable levels of leptin in the serum. This absence of serum leptin is caused by homozygous frameshift or missense mutations in the ob gene (7q31.3) and is inherited as an autosomal recessive trait . However, a similar phenotype has been observed in three individuals from one consanguineous family who carried homozygous mutations in the gene encoding the leptin receptor (LEPR , 1p31). Diagnostic methods Family history , severe hyperphagia and early-onset obesity may lead to suspicion of a monogenic obesity syndrome . The diagnosis of congenital leptin deficiency can be confirmed by analysis of serum leptin levels or identification of mutations in the ob gene. Management and treatment Congenital leptin deficiency can be successfully treated with daily subcutaneous injections of recombinant human leptin, resulting in sustained positive effects on weight loss, reducing appetite, appropriate pubertal development and hyperinsulinaemia. Prognosis As a result, the prognosis for patients undergoing treatment appears to be excellent. However, misdiagnosed patients are at risk of developing the complications normally associated with severe obesity (in particular type 2 diabetes), with the prognosis being hampered further by an increased rate of mortality due to childhood infection. Visit the Orphanet disease page for more resources.

MalaCards based summary : Leptin Deficiency or Dysfunction, also known as obesity due to congenital leptin deficiency, is related to congenital generalized lipodystrophy and sleep apnea, and has symptoms including obesity, metabolically benign An important gene associated with Leptin Deficiency or Dysfunction is LEP (Leptin), and among its related pathways/superpathways are Neuroactive ligand-receptor interaction and Adipocytokine signaling pathway. The drugs Nadroparin and Losartan have been mentioned in the context of this disorder. Affiliated tissues include liver, bone and breast, and related phenotypes are obesity and decreased serum leptin

Disease Ontology : 12 An autosomal recessive disease characterized by severe early-onset obesity, hyperphagia, hypogonadotropic hypogonadism, and neuroendocrine and metabolic dysfunction that has material basis in homozygous or compound heterozygous mutation in LEP on chromosome 7q32.1.

Genetics Home Reference : 25 Congenital leptin deficiency is a condition that causes severe obesity beginning in the first few months of life. Affected individuals are of normal weight at birth, but they are constantly hungry and quickly gain weight. Without treatment, the extreme hunger continues and leads to chronic excessive eating (hyperphagia) and obesity. Beginning in early childhood, affected individuals develop abnormal eating behaviors such as fighting with other children over food, hoarding food, and eating in secret. People with congenital leptin deficiency also have hypogonadotropic hypogonadism, which is a condition caused by reduced production of hormones that direct sexual development. Without treatment, affected individuals experience delayed puberty or do not go through puberty, and may be unable to conceive children (infertile).

OMIM : 56 Leptin deficiency is characterized by severe early-onset obesity, hyperphagia, hypogonadotropic hypogonadism, and neuroendocrine/metabolic dysfunction (Ozata et al., 1999). (614962)

KEGG : 36 Congenital leptin deficiency is a rare human genetic syndrome resulting in severe hyperphagia and early-onset obesity. Beneficial effects of leptin replacement therapy in this condition has been reported.

UniProtKB/Swiss-Prot : 73 Leptin deficiency: A rare disease characterized by low levels of serum leptin, severe hyperphagia and intractable obesity from an early age.

Related Diseases for Leptin Deficiency or Dysfunction

Diseases related to Leptin Deficiency or Dysfunction via text searches within MalaCards or GeneCards Suite gene sharing:

(show top 50) (show all 1135)
# Related Disease Score Top Affiliating Genes
1 congenital generalized lipodystrophy 33.6 PPARG LEP INS ADIPOQ
2 sleep apnea 31.8 RETN LEPR LEP INS HCRT GHRL
3 gastroesophageal reflux 31.7 PYY GHRL GCG CCK ADIPOQ
4 cholelithiasis 31.5 LEP INS CCK
5 fatty liver disease, nonalcoholic 1 31.4 RETN LEP INS ADIPOQ
6 dumping syndrome 31.3 PYY INS GHRL GCG CCK
7 osteoporosis 31.3 PPARG LEPR LEP INS GHRL ADIPOQ
8 obesity-hypoventilation syndrome 31.2 RETN LEP ADIPOQ
9 lipodystrophy, congenital generalized, type 1 31.1 PPARG LEP INS ADIPOQ
10 pain agnosia 31.1 POMC CCK ADRB3
11 apnea, obstructive sleep 31.1 RETN LEP INS HCRT GHRL GCG
12 berardinelli-seip congenital lipodystrophy 31.1 PPARG LEP
13 hypoglycemia 31.0 POMC INS GHRL GCG
14 liver cirrhosis 31.0 RETN LEPR LEP INS GCG ADIPOQ
15 coronary heart disease 1 31.0 RETN LPL INS ADIPOQ
16 proteasome-associated autoinflammatory syndrome 1 30.9 RETN PPARG INS ADIPOQ
17 kidney disease 30.9 RETN PPARG LEP INS GCG ADIPOQ
18 ileus 30.9 POMC INS GHRL CCK
19 hyperuricemia 30.9 LEP INS ADRB3
20 irritable bowel syndrome 30.9 PYY POMC GHRL CCK
21 mandibular hypoplasia, deafness, progeroid features, and lipodystrophy syndrome 30.9 LEP INS ADIPOQ
22 familial partial lipodystrophy 30.9 RETN PPARG LEP INS ADIPOQ
23 genetic obesity 30.9 LEPR LEP
24 atherosclerosis susceptibility 30.8 RETN PPARG LPL LEP INS ADIPOQ
25 familial hyperlipidemia 30.8 PPARG LPL LEP INS ADRB3 ADIPOQ
26 alcohol dependence 30.8 POMC LEP HCRT GHRL GAD2 CCK
27 arteriosclerosis 30.8 PPARG INS GHRL ADIPOQ
28 gallbladder disease 30.8 PYY INS CCK
29 pericarditis 30.8 RETN LEP ADIPOQ
30 anxiety 30.7 POMC INS HCRT GAD2 CCK
31 amenorrhea 30.7 POMC LEP INS GHRL
32 vascular disease 30.7 RETN PPARG LPL LEP INS ADIPOQ
33 severe pre-eclampsia 30.7 LEPR LEP ADIPOQ
34 hyperglycemia 30.7 RETN PYY PPARG LPL LEP INS
35 sleep disorder 30.7 POMC LEP INS HCRT GHRL ADIPOQ
36 syndromic obesity 30.7 SIM1 POMC LEPR LEP
37 acanthosis nigricans 30.7 PPARG LEP INS ADRB3 ADIPOQ
38 polycystic ovary syndrome 30.7 RETN POMC LEP INS GHRL ADIPOQ
39 uremia 30.7 RETN LPL LEP INS
40 pancreatitis 30.7 LPL INS GCG CCK
41 hyperlipidemia, familial combined, 3 30.7 LPL INS FABP2 ADRB3 ADIPOQ
42 acute pancreatitis 30.6 RETN LPL INS CCK
43 glucose intolerance 30.6 RETN PPARG POMC LPL LEPR LEP
44 fatty liver disease 30.6 RETN PPARG LEPR LEP INS ADIPOQ
45 craniopharyngioma 30.6 LEPR INS GHRL
46 non-alcoholic steatohepatitis 30.6 PPARG INS ADIPOQ
47 nutritional deficiency disease 30.6 RETN LEPR LEP GHRL CCK ADIPOQ
48 sexual disorder 30.6 POMC INS ADRB3
49 lipoblastoma 30.6 LEPR LEP
50 acquired generalized lipodystrophy 30.6 RETN LEP INS ADIPOQ

Graphical network of the top 20 diseases related to Leptin Deficiency or Dysfunction:



Diseases related to Leptin Deficiency or Dysfunction

Symptoms & Phenotypes for Leptin Deficiency or Dysfunction

Human phenotypes related to Leptin Deficiency or Dysfunction:

58 31 (show all 26)
# Description HPO Frequency Orphanet Frequency HPO Source Accession
1 obesity 58 31 obligate (100%) Obligate (100%) HP:0001513
2 decreased serum leptin 58 31 obligate (100%) Obligate (100%) HP:0003292
3 primary amenorrhea 58 31 hallmark (90%) Very frequent (99-80%) HP:0000786
4 hyperinsulinemia 58 31 hallmark (90%) Very frequent (99-80%) HP:0000842
5 hypergonadotropic hypogonadism 58 31 hallmark (90%) Very frequent (99-80%) HP:0000815
6 absence of secondary sex characteristics 58 31 hallmark (90%) Very frequent (99-80%) HP:0008187
7 decreased testicular size 58 31 hallmark (90%) Very frequent (99-80%) HP:0008734
8 decreased proportion of cd4-positive t cells 58 31 hallmark (90%) Very frequent (99-80%) HP:0005407
9 gynecomastia 58 31 hallmark (90%) Very frequent (99-80%) HP:0000771
10 polyphagia 58 31 hallmark (90%) Very frequent (99-80%) HP:0002591
11 decreased serum estradiol 58 31 hallmark (90%) Very frequent (99-80%) HP:0008214
12 decreased t cell activation 58 31 hallmark (90%) Very frequent (99-80%) HP:0005419
13 hypoplasia of the ovary 58 31 hallmark (90%) Very frequent (99-80%) HP:0008724
14 decreased serum testosterone level 31 hallmark (90%) HP:0040171
15 hypertriglyceridemia 58 31 frequent (33%) Frequent (79-30%) HP:0002155
16 recurrent upper respiratory tract infections 58 31 frequent (33%) Frequent (79-30%) HP:0002788
17 accelerated skeletal maturation 58 31 frequent (33%) Frequent (79-30%) HP:0005616
18 insulin-resistant diabetes mellitus 58 31 frequent (33%) Frequent (79-30%) HP:0000831
19 orthostatic hypotension due to autonomic dysfunction 58 31 frequent (33%) Frequent (79-30%) HP:0004926
20 pituitary hypothyroidism 58 31 frequent (33%) Frequent (79-30%) HP:0008245
21 hypogonadism 31 HP:0000135
22 micropenis 31 HP:0000054
23 recurrent ear infections 31 HP:0410018
24 recurrent pneumonia 31 HP:0006532
25 decreased testosterone in males 58 Very frequent (99-80%)
26 abnormal eating behavior 31 HP:0100738

Symptoms via clinical synopsis from OMIM:

56
Genitourinary Internal Genitalia Female:
primary amenorrhea
small ovaries

Head And Neck Ears:
recurrent ear infections

Growth Weight:
normal birth weight
early-onset severe obesity

Genitourinary Internal Genitalia Male:
small testes

Abdomen Gastrointestinal:
hyperphagia

Respiratory Lung:
recurrent pulmonary infections

Skin Nails Hair Hair:
no beard
sparse pubic and axillary hair

Immunology:
frequent infections in childhood
reduced number of ct4+ t cells (in some patients)
increase in cd8+ t cells (in some patients)
increase in b cells (in some patients)
marked reduction in cd4+/cd8+ ratio (in some patients)
more
Genitourinary:
hypogonadism

Chest Breasts:
gynecomastia

Genitourinary External Genitalia Male:
small penis

Endocrine Features:
low testosterone levels
low estradiol levels
low serum leptin levels (in most patients)
high serum leptin levels (rare)
hypothalamic hypogonadism
more
Neurologic Behavioral Psychiatric Manifestations:
hyperphagia

Respiratory Nasopharynx:
frequent upper respiratory tract infections

Neurologic Peripheral Nervous System:
sympathetic system dysfunction

Clinical features from OMIM:

614962

UMLS symptoms related to Leptin Deficiency or Dysfunction:


obesity, metabolically benign

MGI Mouse Phenotypes related to Leptin Deficiency or Dysfunction:

45 (show all 12)
# Description MGI Source Accession Score Top Affiliating Genes
1 adipose tissue MP:0005375 10.41 ADIPOQ ADRB3 AGRP FABP2 GHRL INS
2 homeostasis/metabolism MP:0005376 10.41 ADIPOQ ADRB3 AGRP CCK FABP2 GAD2
3 behavior/neurological MP:0005386 10.37 ADIPOQ ADRB3 AGRP GAD2 GHRL HCRT
4 growth/size/body region MP:0005378 10.36 ADIPOQ ADRB3 AGRP FABP2 GAD2 HCRT
5 endocrine/exocrine gland MP:0005379 10.22 ADIPOQ ADRB3 CCK GAD2 GHRL INS
6 liver/biliary system MP:0005370 10.14 ADIPOQ AGRP FABP2 INS LEP LEPR
7 nervous system MP:0003631 10.13 ADIPOQ AGRP CCK GAD2 HCRT INS
8 muscle MP:0005369 9.97 ADIPOQ GAD2 HCRT INS LEP LEPR
9 no phenotypic analysis MP:0003012 9.86 AGRP CCK GAD2 INS LEPR MC4R
10 normal MP:0002873 9.81 AGRP GAD2 GHRL INS LEPR MC4R
11 renal/urinary system MP:0005367 9.61 ADIPOQ CCK FABP2 INS LEP LEPR
12 respiratory system MP:0005388 9.17 ADIPOQ GAD2 HCRT LEP LEPR LPL

Drugs & Therapeutics for Leptin Deficiency or Dysfunction

Drugs for Leptin Deficiency or Dysfunction (from DrugBank, HMDB, Dgidb, PharmGKB, IUPHAR, NovoSeek, BitterDB):

(show top 50) (show all 595)
# Name Status Phase Clinical Trials Cas Number PubChem Id
1
Nadroparin Approved, Investigational Phase 4
2
Losartan Approved Phase 4 114798-26-4 3961
3
Anastrozole Approved, Investigational Phase 4 120511-73-1 2187
4
Methylprednisolone Approved, Vet_approved Phase 4 83-43-2 6741
5
Methylprednisolone hemisuccinate Approved Phase 4 2921-57-5
6
Prednisolone Approved, Vet_approved Phase 4 50-24-8 5755
7 Prednisolone acetate Approved, Vet_approved Phase 4 52-21-1
8
Prednisolone phosphate Approved, Vet_approved Phase 4 302-25-0
9
Fentanyl Approved, Illicit, Investigational, Vet_approved Phase 4 437-38-7 3345
10
Ketamine Approved, Vet_approved Phase 4 6740-88-1 3821
11
Acetaminophen Approved Phase 4 103-90-2 1983
12
Cefazolin Approved Phase 4 25953-19-9 33255 656510
13
Enoxaparin Approved Phase 4 9005-49-6 772
14
Dopamine Approved Phase 4 51-61-6, 62-31-7 681
15
Rocuronium Approved Phase 4 119302-91-9, 143558-00-3 441290
16
Ibuprofen Approved Phase 4 15687-27-1 3672
17
Atorvastatin Approved Phase 4 134523-00-5 60823
18
Bupivacaine Approved, Investigational Phase 4 2180-92-9, 38396-39-3 2474
19
Posaconazole Approved, Investigational, Vet_approved Phase 4 171228-49-2 147912
20
Miconazole Approved, Investigational, Vet_approved Phase 4 22916-47-8 4189
21
Micafungin Approved, Investigational Phase 4 235114-32-6 3081921 477468
22
Oxycodone Approved, Illicit, Investigational Phase 4 76-42-6 5284603
23
Valsartan Approved, Investigational Phase 4 137862-53-4 60846
24
Amphotericin B Approved, Investigational Phase 4 1397-89-3 14956 5280965
25
Coal tar Approved Phase 4 8007-45-2
26
Anidulafungin Approved, Investigational Phase 4 166663-25-8 166548
27
Atropine Approved, Vet_approved Phase 4 51-55-8, 5908-99-6 174174
28
Metoclopramide Approved, Investigational Phase 4 364-62-5 4168
29
Ketorolac Approved Phase 4 66635-83-4, 74103-06-3 3826
30
Iron Approved, Experimental Phase 4 7439-89-6, 15438-31-0 23925 27284
31
Pramlintide Approved, Investigational Phase 4 151126-32-8
32
Fenofibrate Approved Phase 4 49562-28-9 3339
33
Ferrous gluconate Approved Phase 4 299-29-6
34
Ferrous fumarate Approved Phase 4 141-01-5
35
Pioglitazone Approved, Investigational Phase 4 111025-46-8 4829
36
Olanzapine Approved, Investigational Phase 4 132539-06-1 4585
37
Rosiglitazone Approved, Investigational Phase 4 122320-73-4 77999
38
Risperidone Approved, Investigational Phase 4 106266-06-2 5073
39
Aripiprazole Approved, Investigational Phase 4 129722-12-9 60795
40
Diphenhydramine Approved, Investigational Phase 4 58-73-1, 147-24-0 3100
41
Promethazine Approved, Investigational Phase 4 60-87-7 4927
42
Insulin glargine Approved Phase 4 160337-95-1
43
Insulin detemir Approved Phase 4 169148-63-4 5311023
44
Iloperidone Approved Phase 4 133454-47-4 71360
45
Bromocriptine Approved, Investigational Phase 4 25614-03-3 31101
46
Insulin lispro Approved Phase 4 133107-64-9
47
Insulin aspart Approved Phase 4 116094-23-6 16132418
48
Verapamil Approved Phase 4 52-53-9 2520
49
Pasireotide Approved Phase 4 396091-73-9 9941444
50
Glyburide Approved Phase 4 10238-21-8 3488

Interventional clinical trials:

(show top 50) (show all 1595)
# Name Status NCT ID Phase Drugs
1 Obesity Cohort : Medical Follow-up of Severe or Morbid Obese Patients Undergoing Bariatric Surgery Unknown status NCT02310178 Phase 4
2 Effect of Bile Acids and Bile Acid Sequstrants on GLP-1 Secretion After Roux-en-Y Gastric Bypass Unknown status NCT02952963 Phase 4 Chenodeoxycholic Acid;Colesevelam
3 Effects of Chenodeoxycholic Acid and Colesevelam on GLP-1 Secretion, During a Meal, After Roux-en-Y Gastric Bypass Unknown status NCT02876484 Phase 4 Colesevelam;Chenodeoxycholic Acid
4 Prospective, Pharmacokinetic Study for Determination of the Relationship Between Lean Body Weight and Anti-Xa Activity 4 Hours After Subcutaneous Injection of 5700 IU Nadroparin in Morbidly Obese Patients After Bariatric Surgery. Unknown status NCT02295150 Phase 4 Nadroparin
5 Impact of the Preservation of the Gastric Antrum in the Technique of Sleeve Gastrectomy for the Treatment of the Morbid Obesity: a Prospective,Controlled, Randomized, Multicentrique Study. Unknown status NCT01550601 Phase 4
6 Correlation of Postoperative VAS Values and Body Mass Index in Patients Undergoing Abdominal Surgery: A Clinical Trial Unknown status NCT02017314 Phase 4 Morphine
7 A Study of the Pharmacokinetics of Dexmedetomidine in Morbid Obesity. Unknown status NCT01864187 Phase 4 Dexmedetomidine
8 Vitamin Deficiencies and Suppletion in Morbid Obesity Unknown status NCT02270749 Phase 4 Hydroxocobalamin;FitForMe vitamin B12
9 International, Multi Centre, Open, Prospective, Randomized Study: Banded Versus Conventional Laparoscopic Roux-en-Y (GABY) Unknown status NCT01015469 Phase 4
10 Aromatase Inhibitors and Weight Loss in Severely Obese Hypogonadal Male Veterans (Pilot) Unknown status NCT02959853 Phase 4 Anastrazole
11 Prospective Randomized Study of Effects of Laparoscopic Roux-en-Y Gastric Bypass Versus Laparoscopic Sleeve Gastrectomy Unknown status NCT00667706 Phase 4
12 Laparoscopic Bariatric Surgery: Impact of the Level of Neuromuscular Blockade on Surgical Conditions - Comparison Between Moderate and Deep Neuromuscular Blockade Unknown status NCT02118844 Phase 4 rocuronium
13 Evaluation of the Effects of Laying Early (Between 12 and 16) a Gastric Band on the Prevention of Morbid Obesity in Late Adolescence. Randomized Checked Against Standard Management of Obesity in This Population. Unknown status NCT01700738 Phase 4
14 Gut Hormones as Mediators of Different Weight Loss Responses After Roux-en-Y Gastric Bypass Unknown status NCT02374632 Phase 4
15 Efficacy of Vitamin D Supplementation in Obese Children Unknown status NCT02956408 Phase 4
16 Laparoscopic Roux-en-Y Gastric Bypass vs. Laparoscopic BPD-Duodenal Switch for Superobesity (BMI > 50 kg/m2)- A Randomized Clinical Trial Unknown status NCT00327912 Phase 4
17 Ultrasonographic Modification of Liver Steatosis and Visceral Fat Induced by Treatment With Losartan and Simvastatin in Hypertensive Normocholesterolemic Obese Patients Unknown status NCT00669435 Phase 4 Losartan + Simvastatin;Amlodipine + Simvastatin
18 Chronic Metformin Treatment Induces a Dietary Restriction-like State in Overweight Human Unknown status NCT02745886 Phase 4 metformin 0.85 twice daily for 6 months
19 The Employing of the Bio-Hep-B PreS1/PreS2/S Hepatitis B Virus (HBV) Vaccine in New Born Babies From HBV Positive Palestinian Mothers Unknown status NCT01133184 Phase 4
20 The Effect of 6-Methyl-Prednisolone on Organ Dysfunction and Mortality of Patients With Unresolving Multiple Organ Dysfunction Syndrome Unknown status NCT00127985 Phase 4 6-methyl-prednisolone
21 The Impact of Conventional Hemodialysis, High Flux Hemodialysis and Hemodiafiltration on Adiponectin, Vascular Function and Clinical Prognosis Unknown status NCT00155363 Phase 4
22 Endobarrier Treatment in Obese Subjects With T2DM Unknown status NCT01718457 Phase 4
23 Weight Reduction Alone May Not be Sufficient to Maintain Disease Remission in Obese Patients With Psoriasis: a Randomized, Investigator-blinded Study Unknown status NCT01439425 Phase 4
24 The Therapeutic Effect of Catgut Embedding in Obesity-A Randomized, Double-blind, Placebo-controlled Clinical Trial Unknown status NCT02276235 Phase 4
25 Effect of Vitamin D on Metabolic Parameters in Patients With the Metabolic Syndrome Unknown status NCT01237769 Phase 4 Vitamin D3
26 The Monitor of Serum Prolactin Level and Related Clinical Observations Among Individuals With Schizophrenia Spectrum Illnesses in a 3 Months Aripiprazole Trial Unknown status NCT00468533 Phase 4 Aripiprazole
27 A Study on the Efficacy, Pharmacokinetics and Adverse Effects of Paliperidone ER Unknown status NCT02433717 Phase 4 Paliperidone ER
28 The ACT-OUT Trial: ACTivity OUTcomes Based on the Consumption of a High Carbohydrate or High Fat Diet in Patients With Metabolic Syndrome Unknown status NCT01357382 Phase 4
29 Randomized Clinical Trial Between Laparoscopic Gastric Bypass and Laparoscopic Vertical Banded Gastroplasty for Morbid Obesity Completed NCT01639677 Phase 4
30 Pharmacokinetics of Intravenous Acetaminophen and Its Metabolites in Morbidly Obese Patients Completed NCT01764555 Phase 4 acetaminophen 2 g
31 CYP3A4 Metabolism Before and After Surgery Induced Weight Loss in Morbidly Obese Patients Using Midazolam as a Model Drug Completed NCT01519726 Phase 4 Midazolam
32 Effects of Ursodeoxycholic Acid and Chenodeoxycholic Acid on GLP-1 Secretion After Roux-en-Y Gastric Bypass Completed NCT02340247 Phase 4 Ursodeoxycholic Acid;Chenodeoxycholic Acid
33 A Post Implantation/Post Market Evaluation of Safety and Quality of Life in Subjects Implanted With the Swedish Adjustable Gastric Band (SAGB) During Protocol CI-02-0006 Completed NCT00543140 Phase 4
34 Comparisons of iv Ibuprofen and iv Paracetamol for Postoperative Pain Levels and Opioid Consumption During Bariatric Surgery Completed NCT02778958 Phase 4 paracetamol;ibuprofen
35 Investigations on the Influence of Bariatric Surgery on the Metabolism and Absorption of Atorvastatin Completed NCT00331565 Phase 4
36 Pharmacokinetics of Posaconazole Given as a Single Intravenous Dose to Obese Subjects: Dosing Obese With Noxafil® Under a Trial (DONUT) Completed NCT03246386 Phase 4 Posaconazole Injection [Noxafil] 300mg;Posaconazole Injection [Noxafil] 400mg
37 Micafungin (Mycamine®) Pharmacokinetics Given as a Single Intravenous Dose to Obese Patients (MICADO). Completed NCT03102658 Phase 4 Micafungin
38 Pharmacokinetics (PK) of Propofol in Bariatric (Morbidly Obese) Patients Completed NCT01536002 Phase 4 Propofol
39 Omega-3 Fatty Acids in Bariatric Gastric Bypass Surgery: Effect on Liver Volume, Immune Response and Erythrocyte Function Completed NCT02206256 Phase 4 Omega-3 fatty acid capsules
40 A Novel Preoperative Conditioning Therapy in Giant Obese Patients With the Combination of Liraglutide and a Leucine-Based Amino-Acid Infusion and Caloric Restriction Completed NCT02616003 Phase 4 Liraglutide
41 A Prospective Randomized Clinical Trial Evaluating Surgical Conditions During Laparoscopic Bariatric Surgery With Deep Versus Moderate Neuromuscular Blockade Completed NCT02703909 Phase 4 Rocuronium
42 Pharmacokinetics of Liposomal Amphotericin B (AmBisome®) Given Intravenously to Patients Undergoing Bariatric Surgery Completed NCT02320604 Phase 4 Administration of study drug
43 Clinical, Microbial and Biochemistry Evaluation of Obese Individuals Submitted to One-stage Full-mouth Disinfection. A Clinical Control Parallel Study Completed NCT03103204 Phase 4
44 Efficacy and Tolerability of Garcinia Mangostana Extracts in the Management of Weight Loss in Severe Obese Patients Completed NCT02823561 Phase 4
45 Pharmacokinetics of Anidulafungin (Ecalta ®) Given Intravenously as Prophylaxis to Obese Patients With Risk of Invasive Fungal Infection Undergoing Gastric Bypass Surgery. Completed NCT02021123 Phase 4 Anidulafungin 100mg single dose iv
46 Population Pharmacokinetics and Pharmacodynamics of Propofol in the Morbidly Obese Patient Completed NCT00395681 Phase 4 Diprivan
47 Increased Cefazolin (Ancef) Dosing for Prophylaxis During Cesarean Delivery in the Obese Population Completed NCT02049944 Phase 4 Cefazolin
48 Use Of Esomeprazole In Postoperative Bariatric Surgery Patients Users And Non-Users Of Nonsteroidal Anti-Inflammatory Drugs (NSAIDS) Completed NCT00608712 Phase 4 Esomeprazole
49 Intravenous Ibuprofen for Laparoscopic Bariatric Surgery Completed NCT01707251 Phase 4 Intravenous Ibuprofen;Saline
50 Suture Granuloma in Body Contouring Surgery Completed NCT00223132 Phase 4

Search NIH Clinical Center for Leptin Deficiency or Dysfunction

Cochrane evidence based reviews: obesity, morbid

Genetic Tests for Leptin Deficiency or Dysfunction

Genetic tests related to Leptin Deficiency or Dysfunction:

# Genetic test Affiliating Genes
1 Leptin Deficiency or Dysfunction 29 LEP
2 Morbid Obesity 29

Anatomical Context for Leptin Deficiency or Dysfunction

MalaCards organs/tissues related to Leptin Deficiency or Dysfunction:

40
Liver, Bone, Breast, Brain, Kidney, Heart, Testes

Publications for Leptin Deficiency or Dysfunction

Articles related to Leptin Deficiency or Dysfunction:

(show top 50) (show all 7985)
# Title Authors PMID Year
1
Phenotypic effects of leptin replacement on morbid obesity, diabetes mellitus, hypogonadism, and behavior in leptin-deficient adults. 56 6 54 61
15070752 2004
2
A leptin missense mutation associated with hypogonadism and morbid obesity. 6 56 61 54
9500540 1998
3
Biologically inactive leptin and early-onset extreme obesity. 6 56
25551525 2015
4
Congenital leptin deficiency due to homozygosity for the Delta133G mutation: report of another case and evaluation of response to four years of leptin therapy. 56 6
15472169 2004
5
Beneficial effects of leptin on obesity, T cell hyporesponsiveness, and neuroendocrine/metabolic dysfunction of human congenital leptin deficiency. 6 56
12393845 2002
6
Congenital leptin deficiency is associated with severe early-onset obesity in humans. 6 56
9202122 1997
7
Leptin replacement alters brain response to food cues in genetically leptin-deficient adults. 54 56 61
17986612 2007
8
Human leptin deficiency caused by a missense mutation: multiple endocrine defects, decreased sympathetic tone, and immune system dysfunction indicate new targets for leptin action, greater central than peripheral resistance to the effects of leptin, and spontaneous correction of leptin-mediated defects. 56 61 54
10523015 1999
9
Positional cloning of the mouse obese gene and its human homologue. 54 56 61
7984236 1994
10
Interleukin-18, together with interleukin-12, induces severe acute pancreatitis in obese but not in nonobese leptin-deficient mice. 56
18515422 2008
11
A role for leptin in sustaining lymphopoiesis and myelopoiesis. 56
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Leptin regulates striatal regions and human eating behavior. 56
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Efficacy and safety of leptin-replacement therapy and possible mechanisms of leptin actions in patients with generalized lipodystrophy. 56
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Is leptin an important physiological regulator of CRP? 56
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Induction of leptin resistance through direct interaction of C-reactive protein with leptin. 56
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Disruption of leptin signaling contributes to cardiac hypertrophy independently of body weight in mice. 56
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Leptin-deficient mice exhibit impaired host defense in Gram-negative pneumonia. 56
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Partial leptin deficiency and human adiposity. 56
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Weekly subcutaneous pegylated recombinant native human leptin (PEG-OB) administration in obese men. 56
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Leptin inhibits bone formation through a hypothalamic relay: a central control of bone mass. 56
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Peroxisome proliferator-activated receptor gamma C161-->T polymorphism and coronary artery disease. 6
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Effects of recombinant leptin therapy in a child with congenital leptin deficiency. 56
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Effects of mutations in the human uncoupling protein 3 gene on the respiratory quotient and fat oxidation in severe obesity and type 2 diabetes. 6
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Obesity associated with a mutation in a genetic regulator of adipocyte differentiation. 6
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Abnormal regulation of the leptin gene in the pathogenesis of obesity. 56
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Ciliary neurotrophic factor corrects obesity and diabetes associated with leptin deficiency and resistance. 56
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Correction of obesity and diabetes in genetically obese mice by leptin gene therapy. 56
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Effects of the obese gene product on body weight regulation in ob/ob mice. 56
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Weight-reducing effects of the plasma protein encoded by the obese gene. 56
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Recombinant mouse OB protein: evidence for a peripheral signal linking adiposity and central neural networks. 56
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Genetics. In search of a satiety factor. 56
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Obesity genes: beneficial effects in heterozygous mice. 56
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Thermogenic defect in pre-obese ob/ob mice. 56
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Diabetes mellitus: a "thrifty" genotype rendered detrimental by "progress"? 56
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Obese, a new mutation in the house mouse. 56
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Adipocyte fatty acid-binding protein as a determinant of insulin sensitivity in morbid-obese women. 61 54
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The effect of intragastric balloon on plasma ghrelin, leptin, and adiponectin levels in patients with morbid obesity. 54 61
19258408 2009

Variations for Leptin Deficiency or Dysfunction

ClinVar genetic disease variations for Leptin Deficiency or Dysfunction:

6 (show all 49) ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎ ‎‎
# Gene Name Type Significance ClinVarId dbSNP ID GRCh37 Pos GRCh38 Pos
1 PPARG NM_001354669.1(PPARG):c.-180C>ASNV Pathogenic 8130 rs1800571 3:12422848-12422848 3:12381349-12381349
2 LEP LEP, 1-BP DEL, FS147TERdeletion Pathogenic 13986
3 LEP NM_000230.3(LEP):c.313C>T (p.Arg105Trp)SNV Pathogenic 13987 rs104894023 7:127894625-127894625 7:128254572-128254572
4 LEP NM_000230.3(LEP):c.298G>T (p.Asp100Tyr)SNV Pathogenic 162430 rs724159998 7:127894610-127894610 7:128254557-128254557
5 LEP NM_000230.3(LEP):c.461T>C (p.Leu154Pro)SNV Likely pathogenic 448905 rs1554394014 7:127894773-127894773 7:128254720-128254720
6 UCP3 NM_003356.4(UCP3):c.824+1G>ASNV Conflicting interpretations of pathogenicity 7578 11:73714871-73714871 11:74003826-74003826
7 LEP NM_000230.3(LEP):c.*2822dupduplication Uncertain significance 358854 rs56247456 7:127897638-127897638 7:128257585-128257585
8 LEP NM_000230.3(LEP):c.212C>A (p.Thr71Asn)SNV Uncertain significance 358818 rs886061973 7:127894524-127894524 7:128254471-128254471
9 LEP NM_000230.3(LEP):c.*360G>ASNV Uncertain significance 358825 rs200748706 7:127895176-127895176 7:128255123-128255123
10 LEP NM_000230.3(LEP):c.*1428C>ASNV Uncertain significance 358835 rs76601079 7:127896244-127896244 7:128256191-128256191
11 LEP NM_000230.3(LEP):c.*204C>TSNV Uncertain significance 358823 rs113405088 7:127895020-127895020 7:128254967-128254967
12 LEP NM_000230.3(LEP):c.*422G>CSNV Uncertain significance 358828 rs886061975 7:127895238-127895238 7:128255185-128255185
13 LEP NM_000230.3(LEP):c.*785A>GSNV Uncertain significance 358829 rs114834517 7:127895601-127895601 7:128255548-128255548
14 LEP NM_000230.3(LEP):c.*1010C>ASNV Uncertain significance 358831 rs138289049 7:127895826-127895826 7:128255773-128255773
15 LEP NM_000230.3(LEP):c.*1014C>GSNV Uncertain significance 358832 rs151325384 7:127895830-127895830 7:128255777-128255777
16 LEP NM_000230.3(LEP):c.*1549T>CSNV Uncertain significance 358836 rs201701012 7:127896365-127896365 7:128256312-128256312
17 LEP NM_000230.3(LEP):c.144+15C>TSNV Uncertain significance 358816 rs776318015 7:127892230-127892230 7:128252177-128252177
18 LEP NM_000230.3(LEP):c.181G>A (p.Asp61Asn)SNV Uncertain significance 358817 rs886061972 7:127894493-127894493 7:128254440-128254440
19 LEP NM_000230.3(LEP):c.*2015C>ASNV Uncertain significance 358840 rs28959471 7:127896831-127896831 7:128256778-128256778
20 LEP NM_000230.3(LEP):c.*2053G>ASNV Uncertain significance 358841 rs17617757 7:127896869-127896869 7:128256816-128256816
21 LEP NM_000230.3(LEP):c.*2738G>ASNV Uncertain significance 358852 rs201644572 7:127897554-127897554 7:128257501-128257501
22 LEP NM_000230.3(LEP):c.*150G>ASNV Uncertain significance 358822 rs28954115 7:127894966-127894966 7:128254913-128254913
23 LEP NM_000230.3(LEP):c.*300C>TSNV Uncertain significance 358824 rs191600447 7:127895116-127895116 7:128255063-128255063
24 LEP NM_000230.3(LEP):c.*1260A>GSNV Uncertain significance 358834 rs144195028 7:127896076-127896076 7:128256023-128256023
25 LEP NM_000230.3(LEP):c.*2527G>TSNV Uncertain significance 358848 rs886061979 7:127897343-127897343 7:128257290-128257290
26 LEP NM_000230.3(LEP):c.*2799C>TSNV Uncertain significance 358853 rs200887574 7:127897615-127897615 7:128257562-128257562
27 LEP NM_000230.3(LEP):c.21C>T (p.Cys7=)SNV Uncertain significance 358815 rs201523305 7:127892092-127892092 7:128252039-128252039
28 LEP NM_000230.3(LEP):c.*34G>ASNV Uncertain significance 358820 rs28954114 7:127894850-127894850 7:128254797-128254797
29 LEP NM_000230.3(LEP):c.*69A>GSNV Uncertain significance 358821 rs886061974 7:127894885-127894885 7:128254832-128254832
30 LEP NM_000230.3(LEP):c.*366A>TSNV Uncertain significance 358826 rs28954118 7:127895182-127895182 7:128255129-128255129
31 LEP NM_000230.3(LEP):c.*992G>TSNV Uncertain significance 358830 rs886061976 7:127895808-127895808 7:128255755-128255755
32 LEP NM_000230.3(LEP):c.*1640C>TSNV Uncertain significance 358837 rs201065449 7:127896456-127896456 7:128256403-128256403
33 LEP NM_000230.3(LEP):c.*1678C>TSNV Uncertain significance 358838 rs188857005 7:127896494-127896494 7:128256441-128256441
34 LEP NM_000230.3(LEP):c.*2224G>ASNV Uncertain significance 358843 rs28959472 7:127897040-127897040 7:128256987-128256987
35 LEP NM_000230.3(LEP):c.*2234G>ASNV Uncertain significance 358844 rs886061977 7:127897050-127897050 7:128256997-128256997
36 LEP NM_000230.3(LEP):c.*2267A>CSNV Uncertain significance 358846 rs886061978 7:127897083-127897083 7:128257030-128257030
37 LEP NM_000230.3(LEP):c.*2579G>ASNV Uncertain significance 358849 rs200738664 7:127897395-127897395 7:128257342-128257342
38 LEP NM_000230.3(LEP):c.*2595C>TSNV Uncertain significance 358851 rs28959475 7:127897411-127897411 7:128257358-128257358
39 LEP NM_000230.3(LEP):c.*2819_*2822dupduplication Uncertain significance 358856 rs56247456 7:127897635-127897638 7:128257582-128257585
40 LEP NM_000230.3(LEP):c.*2820_*2822dupduplication Likely benign 358855 rs56247456 7:127897636-127897638 7:128257583-128257585
41 LEP NM_000230.3(LEP):c.*1243A>GSNV Likely benign 358833 rs6966536 7:127896059-127896059 7:128256006-128256006
42 LEP NM_000230.3(LEP):c.*2205G>ASNV Likely benign 358842 rs41457646 7:127897021-127897021 7:128256968-128256968
43 LEP NM_000230.3(LEP):c.*2410G>ASNV Likely benign 358847 rs28959474 7:127897226-127897226 7:128257173-128257173
44 LEP NM_000230.3(LEP):c.*2595C>ASNV Likely benign 358850 rs28959475 7:127897411-127897411 7:128257358-128257358
45 LEP NM_000230.3(LEP):c.-39G>ASNV Likely benign 358814 rs2167270 7:127881349-127881349 7:128241296-128241296
46 LEP NM_000230.3(LEP):c.*2253C>ASNV Likely benign 358845 rs11761556 7:127897069-127897069 7:128257016-128257016
47 LEP NM_000230.3(LEP):c.*400G>TSNV Likely benign 358827 rs17151922 7:127895216-127895216 7:128255163-128255163
48 LEP NM_000230.3(LEP):c.280G>A (p.Val94Met)SNV Benign/Likely benign 358819 rs17151919 7:127894592-127894592 7:128254539-128254539
49 LEP NM_000230.3(LEP):c.*1720A>GSNV Benign 358839 rs10954174 7:127896536-127896536 7:128256483-128256483

UniProtKB/Swiss-Prot genetic disease variations for Leptin Deficiency or Dysfunction:

73
# Symbol AA change Variation ID SNP ID
1 LEP p.Arg105Trp VAR_008094 rs104894023
2 LEP p.Asp100Tyr VAR_075144 rs724159998

Expression for Leptin Deficiency or Dysfunction

Search GEO for disease gene expression data for Leptin Deficiency or Dysfunction.

Pathways for Leptin Deficiency or Dysfunction

Pathways related to Leptin Deficiency or Dysfunction according to KEGG:

36
# Name Kegg Source Accession
1 Neuroactive ligand-receptor interaction hsa04080
2 Adipocytokine signaling pathway hsa04920
3 JAK-STAT signaling pathway hsa04630
4 AMPK signaling pathway hsa04152
5 Cytokine-cytokine receptor interaction hsa04060

Pathways related to Leptin Deficiency or Dysfunction according to GeneCards Suite gene sharing:

(show all 18)
# Super pathways Score Top Affiliating Genes
1
Show member pathways
14.07 PYY POMC MC4R MC3R LPL LEPR
2
Show member pathways
13.43 PPARG LPL LEPR LEP INS GCG
3
Show member pathways
13.34 PYY POMC MC4R MC3R LEPR LEP
4 12.42 PPARG INS GCG GAD2 ADIPOQ
5
Show member pathways
12.32 PPARG LEPR LEP INS ADIPOQ
6
Show member pathways
12.06 POMC LEP INS GHRL GCG
8 11.93 POMC MC4R MC3R GCG ADRB3
9 11.64 PPARG LPL FABP2 ADIPOQ
10 11.61 PPARG LPL INS
11 11.55 RETN PPARG LPL LEP INS ADIPOQ
12 11.42 LEPR LEP INS
13 11.39 POMC LEPR LEP AGRP ADIPOQ
14
Show member pathways
11.18 POMC LEPR LEP
15 11.07 PPARG LEP ADIPOQ
16 11 PPARG LEP ADIPOQ
17 10.84 POMC MC4R AGRP
18 10.53 PYY POMC MC4R LEPR LEP INS

GO Terms for Leptin Deficiency or Dysfunction

Cellular components related to Leptin Deficiency or Dysfunction according to GeneCards Suite gene sharing:

# Name GO ID Score Top Affiliating Genes
1 extracellular space GO:0005615 9.7 RETN PYY POMC LPL LEP INS
2 secretory granule lumen GO:0034774 9.46 POMC INS GHRL GCG
3 extracellular region GO:0005576 9.44 RETN PYY POMC LPL LEPR LEP

Biological processes related to Leptin Deficiency or Dysfunction according to GeneCards Suite gene sharing:

(show all 34)
# Name GO ID Score Top Affiliating Genes
1 signal transduction GO:0007165 10.2 RETN PPARG POMC MC4R MC3R LEP
2 G protein-coupled receptor signaling pathway GO:0007186 10 PYY PPARG POMC MC4R MC3R INS
3 response to drug GO:0042493 9.96 PPARG LPL GAD2 ADIPOQ
4 neuropeptide signaling pathway GO:0007218 9.87 PYY POMC HCRT AGRP
5 adenylate cyclase-activating G protein-coupled receptor signaling pathway GO:0007189 9.86 MC4R